@import url('https://fonts.googleapis.com/css2?family=Sarabun:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,300;1,400;1,500;1,600;1,700;1,800&family=Inter:wght@400;500;600;700&family=Fira+Code:wght@400;500;600&display=swap');

/* ==========================================================================
   CSS Variables & Design Tokens (GitHub Dark & Light Lavender-Green)
   ========================================================================== */
:root,
[data-theme="dark"] {
    /* Typography */
    --font-family: 'TH Sarabun New', 'Sarabun', 'TH Sarabun PSK', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-main: 'TH Sarabun New', 'Sarabun', 'TH Sarabun PSK', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-code: 'Fira Code', 'Courier New', monospace;
    --font-base-size: 19px;

    /* Dark Mode: GitHub Dark Base + Accent Purple & Green */
    --bg-canvas: #0d1117;           /* GitHub Dark Base */
    --bg-canvas-subtle: #080b0f;
    --bg-surface: #161b22;          /* GitHub Dark Card */
    --bg-surface-elevated: #21262d; /* GitHub Dark Panel */
    --bg-surface-glass: rgba(22, 27, 34, 0.92);
    --bg-surface-accent: #1c2128;

    --border-subtle: #21262d;
    --border-default: #30363d;       /* GitHub Dark Border */
    --border-strong: #484f58;
    --border-green: #2ea043;         /* GitHub Green Border */
    --border-purple: #a855f7;        /* Purple Contrast Accent */

    --text-primary: #fdfeff;        /* GitHub High Contrast White */
    --text-secondary: #8b949e;      /* GitHub Muted Text */
    --text-muted: #6e7681;
    --text-inverse: #0d1117;

    --accent-purple: #a855f7;        /* Bright Purple */
    --accent-purple-hover: #c084fc;
    --accent-purple-subtle: rgba(168, 85, 247, 0.15);
    --accent-purple-glow: rgba(168, 85, 247, 0.35);

    --accent-green: #238636;         /* GitHub Green */
    --accent-green-hover: #2ea043;
    --accent-green-subtle: rgba(46, 160, 67, 0.18);
    --accent-green-glow: rgba(46, 160, 67, 0.35);

    --card-highlight-bg: rgba(35, 134, 54, 0.12); /* GitHub Green box */
    --card-highlight-border: #2ea043;
    --card-highlight-text: #7ee787;

    --card-purple-bg: rgba(168, 85, 247, 0.1);
    --card-purple-border: rgba(168, 85, 247, 0.35);

    --badge-bg: rgba(168, 85, 247, 0.2);
    --badge-text: #d8b4fe;

    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.85);
    --shadow-green: 0 8px 24px rgba(46, 160, 67, 0.3);

    --hero-gradient: radial-gradient(circle at 15% 20%, rgba(168, 85, 247, 0.12) 0%, transparent 40%),
                     radial-gradient(circle at 85% 75%, rgba(46, 160, 67, 0.14) 0%, transparent 45%),
                     linear-gradient(180deg, #0d1117 0%, #161b22 100%);

    --navbar-bg: rgba(13, 17, 23, 0.92);
    --code-bg: #090d13;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;
    --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);

    /* IoT Compatible Aliases */
    --bg-color: var(--bg-canvas);
    --bg-main: var(--bg-canvas);
    --bg-card: var(--bg-surface);
    --card-bg: var(--bg-surface-glass);
    --menu-bg: rgba(13, 17, 23, 0.96);
    --topbar-bg: var(--navbar-bg);
    --text-main: var(--text-primary);
    --accent: var(--accent-purple);
    --accent-hover: var(--accent-purple-hover);
    --primary: var(--accent-green);
    --primary-hover: var(--accent-green-hover);
    --border: var(--border-default);
    --border-color: var(--border-default);
    --topbar-height: 68px;
    --switch-bg: rgba(255, 255, 255, 0.15);
}

[data-theme="light"] {
    /* Light Mode: ขาวอมม่วงอ่อนๆ ละมุน ตัดด้วยสีเขียวมรกต */
    --bg-canvas: #f7f6fc;
    --bg-canvas-subtle: #eeebf8;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #ffffff;
    --bg-surface-glass: rgba(255, 255, 255, 0.92);
    --bg-surface-accent: #f2effc;

    --border-subtle: #e6e2f4;
    --border-default: #d7d1ee;
    --border-strong: #bcb4e4;
    --border-green: #10b981;
    --border-purple: #8b5cf6;

    --text-primary: #1a1727;
    --text-secondary: #524d6d;
    --text-muted: #7d7899;
    --text-inverse: #ffffff;

    --accent-purple: #7c3aed;
    --accent-purple-hover: #6d28d9;
    --accent-purple-subtle: #ede9fe;
    --accent-purple-glow: rgba(124, 58, 237, 0.16);

    --accent-green: #059669;
    --accent-green-hover: #047857;
    --accent-green-subtle: #d1fae5;
    --accent-green-glow: rgba(16, 185, 129, 0.2);

    --card-highlight-bg: #f0fdf4;
    --card-highlight-border: #86efac;
    --card-highlight-text: #166534;

    --card-purple-bg: #f5f3ff;
    --card-purple-border: #ddd6fe;

    --badge-bg: #e0e7ff;
    --badge-text: #3730a3;

    --shadow-sm: 0 2px 8px rgba(118, 92, 194, 0.07);
    --shadow-md: 0 8px 24px rgba(118, 92, 194, 0.1);
    --shadow-lg: 0 16px 36px rgba(118, 92, 194, 0.14);
    --shadow-green: 0 8px 20px rgba(5, 150, 105, 0.18);

    --hero-gradient: radial-gradient(circle at 10% 20%, rgba(124, 58, 237, 0.08) 0%, transparent 40%),
                     radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 45%),
                     linear-gradient(180deg, #f7f6fc 0%, #ffffff 100%);

    --navbar-bg: rgba(247, 246, 252, 0.92);
    --code-bg: #f2effa;

    /* IoT Compatible Aliases */
    --bg-color: var(--bg-canvas);
    --bg-main: var(--bg-canvas);
    --bg-card: var(--bg-surface);
    --card-bg: var(--bg-surface-glass);
    --menu-bg: rgba(247, 246, 252, 0.96);
    --topbar-bg: var(--navbar-bg);
    --text-main: var(--text-primary);
    --text-muted: var(--text-secondary);
    --accent: var(--accent-purple);
    --accent-hover: var(--accent-purple-hover);
    --primary: var(--accent-green);
    --primary-hover: var(--accent-green-hover);
    --border: var(--border-default);
    --border-color: var(--border-default);
    --switch-bg: rgba(110, 95, 140, 0.18);
}

/* ==========================================================================
   Global & Typography Calibration (TH Sarabun New / Sarabun)
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-base-size, 19px);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-canvas);
    color: var(--text-primary);
    line-height: 1.65;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

input, button, select, textarea {
    font-family: inherit;
}

/* Loader */
.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.loader-container.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    user-select: none;
    -webkit-user-select: none;
}

.loader-logo {
    height: 64px;
    width: auto;
    filter: drop-shadow(0 0 16px rgba(168, 85, 247, 0.65));
    animation: loaderPulse 2.2s ease-in-out infinite;
    transition: filter 0.2s ease, transform 0.2s ease;
}

:root[data-theme="light"] .loader-logo,
html[data-theme="light"] .loader-logo,
[data-theme="light"] .loader-logo {
    filter: brightness(0) saturate(100%) invert(18%) sepia(94%) saturate(4156%) hue-rotate(269deg) brightness(91%) contrast(97%) drop-shadow(0 0 12px rgba(126, 34, 206, 0.45));
}

@keyframes loaderPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.95;
    }
    50% {
        transform: scale(1.06);
        opacity: 1;
    }
}

.loader-progress-wrap {
    width: 240px;
    max-width: 80vw;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
}

:root[data-theme="light"] .loader-progress-wrap,
html[data-theme="light"] .loader-progress-wrap,
[data-theme="light"] .loader-progress-wrap {
    background: rgba(0, 0, 0, 0.08);
}

.loader-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #7e22ce, #a855f7, #c084fc);
    border-radius: 999px;
    transition: width 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 12px rgba(168, 85, 247, 0.7);
}

.loader-percent {
    font-size: 1rem;
    font-weight: 700;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif, monospace;
    letter-spacing: 0.5px;
    color: #c084fc;
    line-height: 1;
}

:root[data-theme="light"] .loader-percent,
html[data-theme="light"] .loader-percent,
[data-theme="light"] .loader-percent {
    color: #7e22ce;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Topbar */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--topbar-height);
    background: var(--topbar-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-sizing: border-box;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.topbar-brand-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    min-width: 0;
}

.topbar-logo {
    height: 42px;
    width: auto;
    filter: drop-shadow(0 0 4px rgba(255,255,255,0.3));
    flex-shrink: 0;
    transition: height 0.2s ease, filter 0.2s ease;
}

:root[data-theme="light"] .topbar-logo,
html[data-theme="light"] .topbar-logo,
[data-theme="light"] .topbar-logo {
    filter: brightness(0) saturate(100%) invert(18%) sepia(94%) saturate(4156%) hue-rotate(269deg) brightness(91%) contrast(97%) drop-shadow(0 0 2px rgba(126, 34, 206, 0.35)) !important;
}

.topbar-brand-text {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.brand {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #ffffff 15%, #f5f3ff 50%, #ddd6fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: #ede9fe;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0;
    line-height: 1.2;
}

:root[data-theme="light"] .brand,
html[data-theme="light"] .brand {
    background: linear-gradient(135deg, #2e1065 15%, #581c87 50%, #7e22ce 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: #581c87;
}

#projectTitleContainer {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

#projectTitleContainer[style*="display: none"],
#projectTitleContainer.hidden {
    display: none !important;
}

#projectTitle:empty {
    display: none !important;
}

.project-title-slash {
    color: var(--border);
    font-size: 1.4rem;
    font-weight: 300;
    user-select: none;
}

#projectTitle {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.topbar-right {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-shrink: 0;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-main);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    flex-shrink: 0;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.icon-btn svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

:root[data-theme="light"] .icon-btn:hover,
html[data-theme="light"] .icon-btn:hover {
    background: rgba(0, 0, 0, 0.06);
}

.icon-btn svg {
    width: 24px;
    height: 24px;
}

/* Slide Menu */
.slide-menu {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--topbar-height));
    background: var(--menu-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
    z-index: 900;
    padding: 24px 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

.slide-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

.menu-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px 16px;
    width: 100%;
    max-width: 1100px;
    padding: 0 24px;
}

.menu-list li {
    display: inline-flex;
    justify-content: center;
}

.menu-admin-list {
    margin-top: 8px;
}

.menu-item {
    width: 100%;
    text-align: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.15rem;
    font-weight: 500;
    line-height: 1.3;
    padding: 8px 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-main);
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-main);
    transform: scale(1.05);
}

:root[data-theme="light"] .menu-item:hover,
html[data-theme="light"] .menu-item:hover {
    background: rgba(124, 58, 237, 0.08);
    color: var(--text-main);
}

/* Main Content Area */
.console-content {
    margin-top: var(--topbar-height);
    height: calc(100vh - var(--topbar-height));
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow-y: auto;
}

@media (max-width: 768px) {
    .console-content {
        padding: 5px 12px !important;
    }
    #userSettingsView .content-header {
        margin: 0 !important;
        margin-bottom: 0 !important;
    }
    #userSettingsView .content-header .subtitle {
        display: none !important;
    }
    #userSettingsMainGrid,
    #userSettingsPrefsManage,
    #userSettingsProfileManage {
        margin-top: 6px !important;
    }
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-muted);
    flex: 1;
}

.empty-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 24px;
    opacity: 0.6;
}

.empty-state h2 {
    color: var(--text-main);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 32px;
}

.primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--accent-green);
    color: #ffffff !important;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px var(--accent-green-glow);
    text-decoration: none;
    white-space: nowrap;
}

.primary-btn:hover {
    background: var(--accent-green-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-green-glow);
}

:root[data-theme="light"] .primary-btn,
html[data-theme="light"] .primary-btn {
    background: var(--accent-green);
    color: #ffffff !important;
    box-shadow: 0 4px 14px var(--accent-green-glow);
}

:root[data-theme="light"] .primary-btn:hover,
html[data-theme="light"] .primary-btn:hover {
    background: var(--accent-green-hover);
    box-shadow: 0 6px 20px var(--accent-green-glow);
}

.primary-btn svg {
    width: 20px;
    height: 20px;
}

/* Projects Layout */
.hidden {
    display: none !important;
}

.projects-container {
    width: 100%;
    max-width: 1200px;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.projects-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    width: 100%;
}

.projects-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-create-btn {
    padding: 10px 22px;
    font-size: 1rem;
}

.project-grid {
    display: flex;
    gap: 20px;
    width: 100%;
    align-items: flex-start;
    padding-bottom: 80px;
}

.project-masonry-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 1;
    min-width: 0;
}

.project-card {
    width: 100%;
    box-sizing: border-box;
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 10px 12px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-height: auto;
    transition: var(--transition);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-green);
}

:root[data-theme="light"] .project-card,
html[data-theme="light"] .project-card {
    background: var(--bg-surface);
    border-color: var(--border-default);
    box-shadow: var(--shadow-sm);
}

:root[data-theme="light"] .project-card:hover,
html[data-theme="light"] .project-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-purple);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    padding: 0 2px;
    width: 100%;
}

.card-title-group {
    display: flex;
    flex-direction: column;
    gap: 0;
    min-width: 0;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 7x3 Grid Preview (w7 x h3 = 21 cells) */
.project-card-grid-preview {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 6px;
    margin: 4px 0 8px 0;
    padding: 6px;
    width: 100%;
    aspect-ratio: 7 / 3;
    position: relative;
    background: rgba(11, 15, 25, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    box-sizing: border-box;
}

:root[data-theme="light"] .project-card-grid-preview,
html[data-theme="light"] .project-card-grid-preview {
    background: #f8fafc !important;
    border: 1px solid #e2e8f0 !important;
}

.grid-preview-cell {
    aspect-ratio: 1 / 1;
    width: 100%;
    background: transparent;
    border: none;
    pointer-events: none;
}

:root[data-theme="light"] .grid-preview-cell,
html[data-theme="light"] .grid-preview-cell {
    background: transparent;
    border: none;
}

.project-card:hover .grid-preview-cell {
    background: transparent;
    border: none;
}

:root[data-theme="light"] .project-card:hover .grid-preview-cell,
html[data-theme="light"] .project-card:hover .grid-preview-cell {
    background: transparent;
    border: none;
}

.card-mini-widget {
    background: #161b22;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 3px 5px;
    box-sizing: border-box;
    transition: all 0.2s ease;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

:root[data-theme="light"] .card-mini-widget,
html[data-theme="light"] .card-mini-widget {
    background: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06) !important;
}

.project-card:hover .card-mini-widget {
    border-color: rgba(255, 255, 255, 0.18);
}

:root[data-theme="light"] .project-card:hover .card-mini-widget,
html[data-theme="light"] .project-card:hover .card-mini-widget {
    border-color: #cbd5e1 !important;
}

/* ==========================================================================
   Mailbox Modal Theme & Styling
   ========================================================================== */
.mailbox-dialog {
    background: #161b22;
    border: 1px solid var(--border-default, #30363d);
    border-radius: 14px;
    max-width: 520px;
    width: 100%;
    height: 600px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0,0,0,0.6);
    color: var(--text-primary, #f0f6fc);
    position: relative;
    overflow: hidden;
    transition: background 0.2s, border-color 0.2s;
}

:root[data-theme="light"] .mailbox-dialog,
html[data-theme="light"] .mailbox-dialog {
    background: #ffffff !important;
    border-color: #e2e8f0 !important;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.12) !important;
    color: #0f172a !important;
}

.mailbox-header {
    padding: 14px 16px 12px 16px;
    border-bottom: 1px solid var(--border-default, #30363d);
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: #161b22;
}

:root[data-theme="light"] .mailbox-header,
html[data-theme="light"] .mailbox-header {
    background: #ffffff !important;
    border-bottom-color: #e2e8f0 !important;
}

.mailbox-item {
    border-radius: 8px;
    padding: 10px 12px;
    position: relative;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.mailbox-item.unread-item {
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(167, 139, 250, 0.35);
}

.mailbox-item:not(.unread-item) {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-default, #30363d);
}

:root[data-theme="light"] .mailbox-item.unread-item,
html[data-theme="light"] .mailbox-item.unread-item {
    background: #f5f3ff !important;
    border: 1px solid #c4b5fd !important;
}

:root[data-theme="light"] .mailbox-item:not(.unread-item),
html[data-theme="light"] .mailbox-item:not(.unread-item) {
    background: #f8fafc !important;
    border: 1px solid #e2e8f0 !important;
}

:root[data-theme="light"] .mailbox-item .notif-title {
    color: #0f172a !important;
}

:root[data-theme="light"] .mailbox-item .notif-body {
    color: #475569 !important;
}

:root[data-theme="light"] .mailbox-item .notif-date {
    color: #64748b !important;
}

.card-id {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: monospace;
}

.role-badge {
    display: inline-block;
    padding: 3px 12px;
    background: var(--card-purple-bg);
    color: var(--badge-text);
    border: 1px solid var(--card-purple-border);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 0;
    letter-spacing: 0.03em;
}

:root[data-theme="light"] .role-badge,
html[data-theme="light"] .role-badge {
    background: var(--accent-purple-subtle);
    border-color: var(--card-purple-border);
    color: var(--accent-purple);
}

.role-badge.shared {
    background: var(--card-highlight-bg);
    border: 1px solid var(--border-green);
    color: var(--card-highlight-text);
}

:root[data-theme="light"] .role-badge.shared,
html[data-theme="light"] .role-badge.shared {
    background: var(--card-highlight-bg);
    border-color: var(--card-highlight-border);
    color: var(--card-highlight-text);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
    width: 100%;
}

.card-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 3 Dots Menu */
.more-options-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.more-options-btn:hover {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
}

:root[data-theme="light"] .more-options-btn:hover,
html[data-theme="light"] .more-options-btn:hover {
    background: var(--bg-surface-accent);
}

.project-card:has(.dropdown-menu.show),
.project-card.active-dropdown {
    z-index: 150 !important;
}

.dropdown-menu {
    position: absolute;
    top: 40px;
    right: 12px;
    background: var(--bg-surface-elevated, #1e293b);
    border: 1px solid var(--border-default, rgba(255,255,255,0.12));
    border-radius: var(--radius-md, 8px);
    min-width: 140px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease;
}

:root[data-theme="light"] .dropdown-menu,
html[data-theme="light"] .dropdown-menu {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.15);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.dropdown-menu.show {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    color: var(--text-primary, #f1f5f9);
    padding: 9px 14px;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.dropdown-item:first-child { border-top-left-radius: var(--radius-md, 8px); border-top-right-radius: var(--radius-md, 8px); }
.dropdown-item:last-child { border-bottom-left-radius: var(--radius-md, 8px); border-bottom-right-radius: var(--radius-md, 8px); }

.dropdown-item:hover {
    background: var(--accent-purple-subtle, rgba(124, 58, 237, 0.15));
    color: var(--accent-purple, #a78bfa);
}

:root[data-theme="light"] .dropdown-item:hover,
html[data-theme="light"] .dropdown-item:hover {
    background: rgba(124, 58, 237, 0.1);
    color: #7c3aed;
}

.dropdown-item.danger {
    color: #ef4444;
}
.dropdown-item.danger:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

/* Menu Profile (Top) */
.menu-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
    text-align: center;
    width: 100%;
}

.avatar {
    width: 72px;
    height: 72px;
    margin: 0 auto 10px;
    background: var(--bg-surface-elevated);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    border: 1px solid var(--border-default);
}

.avatar svg {
    width: 36px;
    height: 36px;
}

.menu-profile-info h2 {
    font-size: calc(1.35rem + 2px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3px;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.email-text {
    color: var(--text-secondary);
    font-size: calc(0.9rem + 2px);
    margin-bottom: 2px;
    word-break: break-all;
    line-height: 1.3;
}

.join-text {
    font-size: calc(0.82rem + 2px);
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.3;
}

.join-text .profile-meta-label {
    color: var(--text-muted);
    font-size: calc(0.82rem + 2px);
}

.join-text .profile-meta-value {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: calc(0.82rem + 2px);
}

.join-text strong {
    font-size: calc(0.82rem + 4px);
}

/* Menu Footer (Bottom) */
.menu-footer {
    margin-top: 20px;
    width: 100%;
    max-width: 250px;
}

.logout-btn {
    width: 100%;
    padding: 14px;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.logout-btn:hover {
    background: #ef4444;
    color: white;
}

/* Responsive Overrides (< 800px) */
@media (max-width: 800px) {
    .slide-menu {
        padding: 16px 0;
    }

    .menu-profile {
        margin-bottom: 12px;
    }

    .avatar {
        width: 64px;
        height: 64px;
        margin: 0 auto 8px;
    }

    .avatar svg {
        width: 32px;
        height: 32px;
    }

    .menu-profile-info h2 {
        font-size: 1.3rem;
        margin-bottom: 2px;
    }

    .email-text {
        font-size: 0.88rem;
        margin-bottom: 2px;
    }

    .join-text {
        font-size: 0.82rem;
        margin-top: 3px;
    }

    .menu-list, .menu-admin-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 6px 12px;
        padding: 0 16px;
    }

    .menu-admin-list[style*="flex"] {
        display: grid !important;
    }
    
    .menu-item {
        font-size: 0.98rem;
        padding: 6px 8px;
        line-height: 1.25;
    }

    .menu-admin-list {
        margin-top: 6px;
    }

    .menu-footer {
        margin-top: 12px;
    }

    .topbar {
        padding: 0 10px;
    }

    .topbar-left {
        gap: 6px;
        flex: 1;
        min-width: 0;
        overflow: hidden;
        position: static;
    }

    .topbar-brand-wrap {
        gap: 6px;
        min-width: 0;
        overflow: hidden;
    }

    .topbar-logo {
        height: 30px;
    }

    .topbar-brand-text {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 0;
        min-width: 0;
        line-height: 1.15;
    }

    .brand {
        font-size: 1.05rem;
        letter-spacing: 0;
        margin: 0;
        line-height: 1.15;
    }

    #projectTitleContainer {
        display: flex;
        align-items: center;
        gap: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        position: static !important;
        width: auto !important;
        transform: none !important;
        min-width: 0;
    }

    #projectTitleContainer[style*="display: none"],
    #projectTitleContainer.hidden {
        display: none !important;
    }

    .project-title-slash {
        display: none !important;
    }

    #projectTitle {
        font-size: 0.75rem !important;
        font-weight: 500 !important;
        color: var(--text-secondary) !important;
        max-width: 130px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        line-height: 1;
        margin-top: 1px;
    }

    .topbar-right {
        gap: 4px;
        flex-shrink: 0;
    }

    .icon-btn {
        width: 34px;
        height: 34px;
        min-width: 34px;
        border-radius: var(--radius-sm);
        padding: 0;
    }

    .icon-btn svg {
        width: 18px;
        height: 18px;
    }

    #backBtn svg {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 400px) {
    .topbar {
        padding: 0 6px;
    }

    .topbar-logo {
        height: 26px;
    }

    .brand {
        font-size: 0.95rem;
    }

    #projectTitle {
        max-width: 95px;
        font-size: 0.7rem !important;
    }

    .icon-btn {
        width: 32px;
        height: 32px;
        min-width: 32px;
    }
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: all;
}

.modal-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 90%;
    max-width: 500px;
    max-height: 92vh;
    overflow-y: auto;
    box-sizing: border-box;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px) scale(0.95);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

:root[data-theme="light"] .modal-card,
html[data-theme="light"] .modal-card {
    background: var(--bg-surface);
    border-color: var(--border-default);
    box-shadow: var(--shadow-lg);
}

.modal-overlay.show .modal-card {
    transform: translateY(0) scale(1);
}

#customAlertModal .alert-card,
#customAlertModal .modal-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    color: var(--text-main);
}
#customAlertModal #alertTitle {
    color: var(--text-main) !important;
}
#customAlertModal #alertMessage {
    color: var(--text-secondary) !important;
}
#customAlertModal #alertMessage strong {
    color: var(--text-main) !important;
}
#customAlertModal #alertInputLabel {
    color: var(--text-main) !important;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.close-modal-btn {
    opacity: 0.6;
}

.close-modal-btn:hover {
    opacity: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 24px;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-input {
    background: var(--bg-canvas);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

:root[data-theme="light"] .form-input,
html[data-theme="light"] .form-input {
    background-color: #ffffff;
    border-color: var(--border-default);
    color: var(--text-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-purple);
    background-color: var(--bg-canvas);
    box-shadow: 0 0 0 3px var(--accent-purple-glow);
}

:root[data-theme="light"] .form-input:focus,
html[data-theme="light"] .form-input:focus {
    border-color: var(--accent-purple);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px var(--accent-purple-glow);
}

.form-input:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Custom Select Dropdown */
select.form-input {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: var(--bg-canvas);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b949e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat !important;
    background-position: right 12px center !important;
    background-size: 16px 16px !important;
    padding-right: 40px !important; /* space for arrow */
    cursor: pointer;
}

:root[data-theme="light"] select.form-input,
html[data-theme="light"] select.form-input {
    background-color: #ffffff !important;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23524d6d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 12px center !important;
    background-size: 16px 16px !important;
}

select.form-input.small-input {
    width: auto !important;
    min-width: 90px;
    padding: 6px 30px 6px 12px !important;
    background-position: right 8px center !important;
    background-size: 14px 14px !important;
}

select.form-input option {
    background-color: var(--bg-surface);
    color: var(--text-primary);
}

:root[data-theme="light"] select.form-input option,
html[data-theme="light"] select.form-input option {
    background-color: #ffffff;
    color: #0f172a;
}

select.form-input:hover:not(:disabled) {
    background-color: var(--bg-surface-elevated);
}

:root[data-theme="light"] select.form-input:hover:not(:disabled),
html[data-theme="light"] select.form-input:hover:not(:disabled) {
    background-color: var(--bg-surface-accent);
}

.options-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

/* Horizontal Checkbox Selection for Create Project Modal */
.project-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

#createProjectModal .project-options .option-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    padding: 12px 8px;
    border-radius: var(--radius-md);
    gap: 0;
    cursor: pointer;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-default);
    transition: var(--transition);
}

#createProjectModal .project-options .option-item:hover {
    border-color: rgba(99, 102, 241, 0.4);
    background: rgba(99, 102, 241, 0.04);
}

#createProjectModal .project-options .option-item:has(input:checked) {
    border-color: #6366f1;
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
}

#createProjectModal .project-options .checkbox-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    width: 100%;
    cursor: pointer;
    user-select: none;
    margin: 0;
}

#createProjectModal .project-options .checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
}

:root[data-theme="light"] #createProjectModal .project-options .option-item,
html[data-theme="light"] #createProjectModal .project-options .option-item {
    background: var(--bg-surface-accent);
    border-color: var(--border-subtle);
}

:root[data-theme="light"] #createProjectModal .project-options .option-item:has(input:checked),
html[data-theme="light"] #createProjectModal .project-options .option-item:has(input:checked) {
    border-color: #4f46e5;
    background: rgba(79, 70, 229, 0.08);
}

.option-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--bg-surface-elevated);
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-default);
    transition: var(--transition);
}

:root[data-theme="light"] .option-item,
html[data-theme="light"] .option-item {
    background: var(--bg-surface-accent);
    border-color: var(--border-subtle);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--accent-green);
    cursor: pointer;
}

.small-input {
    padding: 10px 14px;
    font-size: 0.9rem;
    width: 100%;
}

.submit-project-btn {
    width: 100%;
    justify-content: center;
    padding: 14px;
}

/* Secondary Buttons & Back Buttons */
.primary-btn.secondary-btn,
.secondary-btn,
.btn-settings-back {
    background: rgba(255, 255, 255, 0.08) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    color: #f0f6fc !important;
    box-shadow: none !important;
}

.primary-btn.secondary-btn svg,
.secondary-btn svg,
.btn-settings-back svg {
    stroke: currentColor !important;
}

.primary-btn.secondary-btn:hover,
.secondary-btn:hover,
.btn-settings-back:hover {
    background: rgba(56, 189, 248, 0.15) !important;
    border-color: #38bdf8 !important;
    color: #38bdf8 !important;
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.25) !important;
    transform: translateY(-2px);
}

.primary-btn.secondary-btn:hover svg,
.secondary-btn:hover svg,
.btn-settings-back:hover svg {
    stroke: #38bdf8 !important;
}

:root[data-theme="light"] .primary-btn.secondary-btn,
html[data-theme="light"] .primary-btn.secondary-btn,
[data-theme="light"] .primary-btn.secondary-btn,
.light-theme .primary-btn.secondary-btn,
:root[data-theme="light"] .secondary-btn,
html[data-theme="light"] .secondary-btn,
[data-theme="light"] .secondary-btn,
.light-theme .secondary-btn,
:root[data-theme="light"] .btn-settings-back,
html[data-theme="light"] .btn-settings-back,
[data-theme="light"] .btn-settings-back,
.light-theme .btn-settings-back {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f172a !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06) !important;
}

:root[data-theme="light"] .primary-btn.secondary-btn svg,
html[data-theme="light"] .primary-btn.secondary-btn svg,
[data-theme="light"] .primary-btn.secondary-btn svg,
.light-theme .primary-btn.secondary-btn svg,
:root[data-theme="light"] .secondary-btn svg,
html[data-theme="light"] .secondary-btn svg,
[data-theme="light"] .secondary-btn svg,
.light-theme .secondary-btn svg,
:root[data-theme="light"] .btn-settings-back svg,
html[data-theme="light"] .btn-settings-back svg,
[data-theme="light"] .btn-settings-back svg,
.light-theme .btn-settings-back svg {
    stroke: #0f172a !important;
}

:root[data-theme="light"] .primary-btn.secondary-btn:hover,
html[data-theme="light"] .primary-btn.secondary-btn:hover,
[data-theme="light"] .primary-btn.secondary-btn:hover,
.light-theme .primary-btn.secondary-btn:hover,
:root[data-theme="light"] .secondary-btn:hover,
html[data-theme="light"] .secondary-btn:hover,
[data-theme="light"] .secondary-btn:hover,
.light-theme .secondary-btn:hover,
:root[data-theme="light"] .btn-settings-back:hover,
html[data-theme="light"] .btn-settings-back:hover,
[data-theme="light"] .btn-settings-back:hover,
.light-theme .btn-settings-back:hover {
    background: #f1f5f9 !important;
    border-color: #0284c7 !important;
    color: #0284c7 !important;
    box-shadow: 0 3px 10px rgba(2, 132, 199, 0.18) !important;
    transform: translateY(-2px);
}

:root[data-theme="light"] .primary-btn.secondary-btn:hover svg,
html[data-theme="light"] .primary-btn.secondary-btn:hover svg,
[data-theme="light"] .primary-btn.secondary-btn:hover svg,
.light-theme .primary-btn.secondary-btn:hover svg,
:root[data-theme="light"] .secondary-btn:hover svg,
html[data-theme="light"] .secondary-btn:hover svg,
[data-theme="light"] .secondary-btn:hover svg,
.light-theme .secondary-btn:hover svg,
:root[data-theme="light"] .btn-settings-back:hover svg,
html[data-theme="light"] .btn-settings-back:hover svg,
[data-theme="light"] .btn-settings-back:hover svg,
.light-theme .btn-settings-back:hover svg {
    stroke: #0284c7 !important;
}

/* Specific ID selectors for settings back buttons */
#btnBackToSettingsFromGeneral,
#btnBackToSettingsFromIot,
#btnBackToSettingsFromChat,
#btnBackToSettings {
    color: #f0f6fc !important;
    background: rgba(255, 255, 255, 0.08) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: none !important;
    cursor: pointer;
}
#btnBackToSettingsFromGeneral svg,
#btnBackToSettingsFromIot svg,
#btnBackToSettingsFromChat svg,
#btnBackToSettings svg {
    stroke: #f0f6fc !important;
}

:root[data-theme="light"] #btnBackToSettingsFromGeneral,
html[data-theme="light"] #btnBackToSettingsFromGeneral,
[data-theme="light"] #btnBackToSettingsFromGeneral,
.light-theme #btnBackToSettingsFromGeneral,
:root[data-theme="light"] #btnBackToSettingsFromIot,
html[data-theme="light"] #btnBackToSettingsFromIot,
[data-theme="light"] #btnBackToSettingsFromIot,
.light-theme #btnBackToSettingsFromIot,
:root[data-theme="light"] #btnBackToSettingsFromChat,
html[data-theme="light"] #btnBackToSettingsFromChat,
[data-theme="light"] #btnBackToSettingsFromChat,
.light-theme #btnBackToSettingsFromChat,
:root[data-theme="light"] #btnBackToSettings,
html[data-theme="light"] #btnBackToSettings,
[data-theme="light"] #btnBackToSettings,
.light-theme #btnBackToSettings {
    color: #0f172a !important;
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06) !important;
}
:root[data-theme="light"] #btnBackToSettingsFromGeneral svg,
html[data-theme="light"] #btnBackToSettingsFromGeneral svg,
[data-theme="light"] #btnBackToSettingsFromGeneral svg,
.light-theme #btnBackToSettingsFromGeneral svg,
:root[data-theme="light"] #btnBackToSettingsFromIot svg,
html[data-theme="light"] #btnBackToSettingsFromIot svg,
[data-theme="light"] #btnBackToSettingsFromIot svg,
.light-theme #btnBackToSettingsFromIot svg,
:root[data-theme="light"] #btnBackToSettingsFromChat svg,
html[data-theme="light"] #btnBackToSettingsFromChat svg,
[data-theme="light"] #btnBackToSettingsFromChat svg,
.light-theme #btnBackToSettingsFromChat svg,
:root[data-theme="light"] #btnBackToSettings svg,
html[data-theme="light"] #btnBackToSettings svg,
[data-theme="light"] #btnBackToSettings svg,
.light-theme #btnBackToSettings svg {
    stroke: #0f172a !important;
}

:root[data-theme="light"] #btnBackToSettingsFromGeneral:hover,
html[data-theme="light"] #btnBackToSettingsFromGeneral:hover,
[data-theme="light"] #btnBackToSettingsFromGeneral:hover,
.light-theme #btnBackToSettingsFromGeneral:hover,
:root[data-theme="light"] #btnBackToSettingsFromIot:hover,
html[data-theme="light"] #btnBackToSettingsFromIot:hover,
[data-theme="light"] #btnBackToSettingsFromIot:hover,
.light-theme #btnBackToSettingsFromIot:hover,
:root[data-theme="light"] #btnBackToSettingsFromChat:hover,
html[data-theme="light"] #btnBackToSettingsFromChat:hover,
[data-theme="light"] #btnBackToSettingsFromChat:hover,
.light-theme #btnBackToSettingsFromChat:hover,
:root[data-theme="light"] #btnBackToSettings:hover,
html[data-theme="light"] #btnBackToSettings:hover,
[data-theme="light"] #btnBackToSettings:hover,
.light-theme #btnBackToSettings:hover {
    background: #f1f5f9 !important;
    border-color: #0284c7 !important;
    color: #0284c7 !important;
    box-shadow: 0 3px 10px rgba(2, 132, 199, 0.18) !important;
}

:root[data-theme="light"] #btnBackToSettingsFromGeneral:hover svg,
html[data-theme="light"] #btnBackToSettingsFromGeneral:hover svg,
[data-theme="light"] #btnBackToSettingsFromGeneral:hover svg,
.light-theme #btnBackToSettingsFromGeneral:hover svg,
:root[data-theme="light"] #btnBackToSettingsFromIot:hover svg,
html[data-theme="light"] #btnBackToSettingsFromIot:hover svg,
[data-theme="light"] #btnBackToSettingsFromIot:hover svg,
.light-theme #btnBackToSettingsFromIot:hover svg,
:root[data-theme="light"] #btnBackToSettingsFromChat:hover svg,
html[data-theme="light"] #btnBackToSettingsFromChat:hover svg,
[data-theme="light"] #btnBackToSettingsFromChat:hover svg,
.light-theme #btnBackToSettingsFromChat:hover svg,
:root[data-theme="light"] #btnBackToSettings:hover svg,
html[data-theme="light"] #btnBackToSettings:hover svg,
[data-theme="light"] #btnBackToSettings:hover svg,
.light-theme #btnBackToSettings:hover svg {
    stroke: #0284c7 !important;
}

.primary-btn.danger-btn {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}
.primary-btn.danger-btn:hover {
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.5);
}

.danger-btn {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #ef4444;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.danger-btn:hover {
    background: rgba(239, 68, 68, 0.22);
    border-color: rgba(239, 68, 68, 0.6);
    color: #fca5a5;
}

/* Note Tab UI (Calendar & Activities) */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr)) !important;
    gap: 6px;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}
.calendar-grid .weekday {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 8px;
    min-width: 0 !important;
    width: 100% !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    box-sizing: border-box;
}
.calendar-grid .day {
    min-height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 6px 2px;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    border: 1px solid transparent;
    min-width: 0 !important;
    max-width: 100% !important;
    width: 100% !important;
    overflow: hidden;
    box-sizing: border-box;
}
.calendar-grid .day:not(.empty):hover {
    background: var(--bg-surface-elevated);
}
:root[data-theme="light"] .calendar-grid .day:not(.empty):hover,
html[data-theme="light"] .calendar-grid .day:not(.empty):hover {
    background: var(--accent-purple-subtle);
}
.calendar-grid .day.active {
    background: var(--card-purple-bg);
    border: 1px solid var(--border-purple);
    color: var(--badge-text);
    font-weight: 700;
}
:root[data-theme="light"] .calendar-grid .day.active,
html[data-theme="light"] .calendar-grid .day.active {
    background: var(--accent-purple-subtle);
    border: 1px solid var(--accent-purple);
    color: var(--accent-purple);
}

.calendar-grid .day.is-today:not(.active) {
    border: 1.5px dashed var(--border-purple, #a855f7) !important;
    background: rgba(168, 85, 247, 0.08);
}
.calendar-grid .day.is-today:not(.active):hover {
    background: rgba(168, 85, 247, 0.16);
}
:root[data-theme="light"] .calendar-grid .day.is-today:not(.active),
html[data-theme="light"] .calendar-grid .day.is-today:not(.active) {
    border: 1.5px dashed var(--accent-purple, #7c3aed) !important;
    background: rgba(124, 58, 237, 0.05);
}
:root[data-theme="light"] .calendar-grid .day.is-today:not(.active):hover,
html[data-theme="light"] .calendar-grid .day.is-today:not(.active):hover {
    background: var(--accent-purple-subtle, #ede9fe);
}
.calendar-grid .day.is-today:not(.active) .day-num {
    font-weight: 700;
}
:root[data-theme="light"] .calendar-grid .day.is-today:not(.active) .day-num:not([style*="color:"]) {
    color: var(--accent-purple, #7c3aed);
}
:root[data-theme="dark"] .calendar-grid .day.is-today:not(.active) .day-num:not([style*="color:"]) {
    color: var(--border-purple, #c084fc);
}

.cal-event-text {
    align-self: stretch;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0 !important;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    transition: transform 0.2s, background 0.2s;
}
.activity-item:hover {
    background: var(--bg-surface-accent);
    transform: translateX(4px);
}
:root[data-theme="light"] .activity-item,
html[data-theme="light"] .activity-item {
    background: var(--bg-surface);
    border-color: var(--border-default);
}
:root[data-theme="light"] .activity-item:hover,
html[data-theme="light"] .activity-item:hover {
    background: var(--bg-surface-accent);
}
.activity-time {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--card-highlight-text);
    background: var(--card-highlight-bg);
    border: 1px solid var(--border-green);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}
:root[data-theme="light"] .activity-time,
html[data-theme="light"] .activity-time {
    background: var(--card-highlight-bg);
    border-color: var(--card-highlight-border);
    color: var(--card-highlight-text);
}
.activity-details h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.activity-details p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Current Time Marker (Both Dark & Light Theme) */
.current-time-marker {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 14px;
    margin-bottom: 16px;
    border-radius: var(--radius-sm, 8px);
    background: rgba(255, 255, 255, 0.05);
    border: 1px dashed rgba(255, 255, 255, 0.25);
    box-sizing: border-box;
    transition: background 0.2s, border-color 0.2s;
}
.current-time-badge {
    font-size: 0.85rem;
    font-weight: 600;
    min-width: 85px;
    color: var(--accent, #a855f7);
    display: flex;
    align-items: center;
    gap: 6px;
}
.current-time-label {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-muted, #8b949e);
    font-style: italic;
}

/* Light Theme: Distinct visible dashed frame for current time */
:root[data-theme="light"] .current-time-marker,
html[data-theme="light"] .current-time-marker,
[data-theme="light"] .current-time-marker,
.light-theme .current-time-marker {
    background: #f8fafc !important;
    border: 1.5px dashed #94a3b8 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04) !important;
}
:root[data-theme="light"] .current-time-badge,
html[data-theme="light"] .current-time-badge,
[data-theme="light"] .current-time-badge {
    color: var(--accent, #7c3aed) !important;
}
:root[data-theme="light"] .current-time-label,
html[data-theme="light"] .current-time-label,
[data-theme="light"] .current-time-label {
    color: #475569 !important;
}

/* Note Tab Responsive Layout (Full Width single column when < 800px, 2-column grid when >= 820px) */
#tab-note {
    container-type: inline-size;
    width: 100%;
}

.note-container {
    display: flex !important;
    flex-direction: column !important;
    gap: 24px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    margin-top: 16px;
}

.calendar-card,
.activities-card {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}

/* When note area width is at least 820px (sufficient for 2 columns >= 400px each): Grid 2 columns */
@container (min-width: 820px) {
    .note-container {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 24px !important;
        align-items: start !important;
    }
}

/* Fallback media query for viewport width */
@media (min-width: 1120px) {
    .note-container {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 24px !important;
        align-items: start !important;
    }
}

/* Mobile Calendar adjustments */
@media (max-width: 500px) {
    .calendar-grid {
        grid-template-columns: repeat(7, minmax(0, 1fr)) !important;
        gap: 3px !important;
        width: 100% !important;
    }
    .calendar-grid .weekday {
        font-size: 0.8rem;
        margin-bottom: 4px;
        min-width: 0 !important;
        width: 100% !important;
    }
    .calendar-grid .day {
        min-height: 42px !important;
        height: auto;
        padding: 4px 1px !important;
        font-size: 0.85rem;
        min-width: 0 !important;
        max-width: 100% !important;
        width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
    }
    .cal-event-text {
        color: transparent !important;
        height: 4px !important;
        min-height: 4px !important;
        padding: 0 !important;
        margin: 3px 0 0 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        background: #10b981 !important;
        border: none !important;
        border-radius: 2px !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
    }
    .cal-event-more {
        display: none !important;
    }
}

/* Mobile & Small Screen (<480px and <400px) Create Project Modal Optimization */
@media (max-width: 480px) {
    .modal-overlay {
        padding: 10px 8px;
        align-items: center;
    }

    .modal-card {
        padding: 20px 16px;
        width: 100% !important;
        max-width: 100% !important;
        border-radius: 16px;
        max-height: 94vh;
        box-sizing: border-box;
    }

    #createProjectModal .modal-card {
        padding: 16px 14px;
    }

    #createProjectModal .modal-header {
        margin-bottom: 12px;
    }

    #createProjectModal .modal-header h2 {
        font-size: 1.25rem;
    }

    #createProjectModal .form-group {
        margin-bottom: 12px;
    }

    #createProjectModal .form-group label {
        font-size: 0.85rem;
        margin-bottom: 4px;
    }

    #createProjectModal .form-input {
        padding: 9px 12px;
        font-size: 0.9rem;
        border-radius: 10px;
    }

    #createProjectModal .options-group {
        gap: 8px;
        margin-bottom: 14px;
    }

    #createProjectModal .project-options {
        gap: 8px;
        margin-bottom: 12px;
    }

    #createProjectModal .project-options .option-item {
        padding: 10px 6px;
    }

    #createProjectModal .project-options .checkbox-label {
        font-size: 0.82rem;
        gap: 6px;
    }

    #createProjectModal .project-options .checkbox-label input[type="checkbox"] {
        width: 16px;
        height: 16px;
    }

    #createProjectModal .option-item {
        padding: 10px 12px;
        gap: 6px;
        border-radius: 10px;
    }

    #createProjectModal .checkbox-label {
        gap: 8px;
        font-size: 0.92rem;
    }

    #createProjectModal .checkbox-label input[type="checkbox"] {
        width: 18px;
        height: 18px;
    }

    #createProjectModal .small-input {
        padding: 7px 10px;
        font-size: 0.82rem;
        border-radius: 8px;
    }

    #createProjectModal .submit-project-btn {
        padding: 11px 16px;
        font-size: 0.95rem;
        border-radius: 10px;
    }
}

@media (max-width: 400px) {
    .modal-overlay {
        padding: 6px;
    }

    .modal-card {
        padding: 14px 12px;
        border-radius: 14px;
        max-height: 96vh;
    }

    #createProjectModal .modal-card {
        padding: 14px 10px;
        width: 100% !important;
    }

    #createProjectModal .modal-header {
        margin-bottom: 8px;
    }

    #createProjectModal .modal-header h2 {
        font-size: 1.15rem;
    }

    #createProjectModal .form-group {
        margin-bottom: 8px;
    }

    #createProjectModal .form-group label {
        font-size: 0.8rem;
        margin-bottom: 2px;
    }

    #createProjectModal .form-input {
        padding: 7px 10px;
        font-size: 0.85rem;
        border-radius: 8px;
    }

    #createProjectModal .options-group {
        gap: 6px;
        margin-bottom: 10px;
    }

    #createProjectModal .project-options {
        gap: 6px;
        margin-bottom: 10px;
    }

    #createProjectModal .project-options .option-item {
        padding: 8px 4px;
    }

    #createProjectModal .project-options .checkbox-label {
        font-size: 0.75rem;
        gap: 4px;
    }

    #createProjectModal .project-options .checkbox-label input[type="checkbox"] {
        width: 15px;
        height: 15px;
    }

    #createProjectModal .option-item {
        padding: 8px 10px;
        gap: 4px;
        border-radius: 8px;
    }

    #createProjectModal .checkbox-label {
        font-size: 0.86rem;
        gap: 6px;
    }

    #createProjectModal .checkbox-label input[type="checkbox"] {
        width: 16px;
        height: 16px;
    }

    #createProjectModal .small-input {
        padding: 6px 8px;
        font-size: 0.78rem;
        border-radius: 6px;
    }

    #createProjectModal .submit-project-btn {
        padding: 9px 14px;
        font-size: 0.9rem;
        border-radius: 8px;
    }
}


/* Empty Project Card (Compact & Variable Height UI) */
.project-card.empty-card {
    padding: 6px 10px;
    min-height: auto;
}

.empty-project-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8px 12px;
    min-height: 70px;
    gap: 4px;
}

.empty-project-title {
    font-size: 1.22rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
    word-break: break-word;
}

.empty-project-date {
    font-size: 0.82rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}


.projects-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.project-search-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-surface, #161b22);
    padding: 7px 14px;
    border-radius: var(--radius-md, 10px);
    border: 1px solid var(--border-default, rgba(255,255,255,0.12));
    color: var(--text-secondary, #94a3b8);
    transition: all 0.2s ease;
    width: 220px;
}

.project-search-wrapper:focus-within {
    border-color: var(--border-green, #10b981);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.15);
    width: 260px;
}

.project-search-input {
    background: transparent;
    border: none;
    color: var(--text-primary, #f8fafc);
    font-size: 0.88rem;
    font-weight: 500;
    outline: none;
    width: 100%;
    font-family: inherit;
}

.project-search-input::placeholder {
    color: var(--text-muted, #64748b);
    font-size: 0.82rem;
}

.project-search-clear-btn {
    background: transparent;
    border: none;
    color: var(--text-muted, #64748b);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s ease;
    margin-left: 2px;
}

.project-search-clear-btn:hover {
    color: #f8fafc;
}

.project-sort-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-surface, #161b22);
    padding: 7px 14px;
    border-radius: var(--radius-md, 10px);
    border: 1px solid var(--border-default, rgba(255,255,255,0.12));
    color: var(--text-secondary, #94a3b8);
    transition: var(--transition);
}

.project-sort-wrapper:hover {
    border-color: var(--border-green, #10b981);
}

.project-sort-select {
    background: transparent;
    border: none;
    color: var(--text-primary, #f8fafc);
    font-size: 0.88rem;
    font-weight: 600;
    outline: none;
    cursor: pointer;
    font-family: inherit;
}

.project-sort-select option {
    background: #161b22;
    color: #f8fafc;
}

@media (max-width: 768px) {
    .projects-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .projects-header-actions {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        align-items: center;
    }
    .project-search-wrapper {
        width: 100% !important;
        flex: 0 0 100% !important;
        box-sizing: border-box;
        height: 38px;
    }
    .project-search-wrapper:focus-within {
        width: 100% !important;
    }
    .project-sort-wrapper {
        width: calc(65% - 4px) !important;
        flex: 0 0 calc(65% - 4px) !important;
        max-width: calc(65% - 4px) !important;
        box-sizing: border-box;
        height: 38px;
        padding: 0 10px !important;
        gap: 6px !important;
        overflow: hidden;
    }
    .project-sort-wrapper svg {
        flex-shrink: 0;
        width: 15px;
        height: 15px;
    }
    .project-sort-wrapper .sort-label {
        font-size: 0.82rem !important;
        flex-shrink: 0;
    }
    .project-sort-select {
        flex: 1;
        min-width: 0;
        font-size: 0.82rem !important;
        text-overflow: ellipsis;
        white-space: nowrap;
        overflow: hidden;
    }
    .header-create-btn {
        width: calc(35% - 4px) !important;
        flex: 0 0 calc(35% - 4px) !important;
        max-width: calc(35% - 4px) !important;
        box-sizing: border-box;
        height: 38px;
        padding: 0 6px !important;
        font-size: 0.86rem !important;
        gap: 5px !important;
        white-space: nowrap;
        justify-content: center;
    }
    .header-create-btn svg {
        width: 15px;
        height: 15px;
        flex-shrink: 0;
    }
    .header-create-btn span {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

@media (max-width: 360px) {
    .project-sort-wrapper .sort-label {
        display: none;
    }
    .header-create-btn {
        font-size: 0.8rem !important;
    }
}

/* UI Builder Add Widget Cards in Drawer */
.btn-drawer-add-widget {
    background: var(--bg-card, #161b22);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main, #f0f6fc);
    border-radius: 12px;
    padding: 10px 12px;
    cursor: pointer;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-drawer-add-widget:hover {
    transform: translateY(-2px);
    border-color: #38bdf8;
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.2), 0 0 0 1px rgba(56, 189, 248, 0.3);
}

.btn-drawer-add-widget:active {
    transform: translateY(0);
}

:root[data-theme="light"] .btn-drawer-add-widget,
html[data-theme="light"] .btn-drawer-add-widget,
[data-theme="light"] .btn-drawer-add-widget,
.light-theme .btn-drawer-add-widget {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #0f172a;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

:root[data-theme="light"] .btn-drawer-add-widget:hover,
html[data-theme="light"] .btn-drawer-add-widget:hover,
[data-theme="light"] .btn-drawer-add-widget:hover,
.light-theme .btn-drawer-add-widget:hover {
    border-color: #0284c7;
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.15);
}

/* Settings View Cookie Consent Button */
.settings-cookie-btn {
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-main, #f8fafc);
    transition: all 0.2s ease;
}

.settings-cookie-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

:root[data-theme="light"] .settings-cookie-btn,
html[data-theme="light"] .settings-cookie-btn,
[data-theme="light"] .settings-cookie-btn {
    background: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #0f172a !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

:root[data-theme="light"] .settings-cookie-btn:hover,
html[data-theme="light"] .settings-cookie-btn:hover,
[data-theme="light"] .settings-cookie-btn:hover {
    background: #f1f5f9 !important;
    border-color: #94a3b8 !important;
    color: #000000 !important;
}

:root[data-theme="light"] .settings-cookie-btn i,
html[data-theme="light"] .settings-cookie-btn i,
[data-theme="light"] .settings-cookie-btn i {
    color: #059669 !important;
}

/* Settings Profile Avatar Upload Styling */
#settingsProfileAvatarWrapper:hover #settingsProfileAvatarCircle {
    transform: scale(1.05);
    border-color: #38bdf8 !important;
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.35) !important;
}

#settingsProfileAvatarWrapper:active #settingsProfileAvatarCircle {
    transform: scale(0.98);
}

/* Quota Database Simulator Toolbar & Action Buttons */
.quota-sim-toolbar {
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 16px;
    box-sizing: border-box;
    width: 100%;
}

.quota-sim-btn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
    gap: 8px;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 520px) {
    .quota-sim-btn-grid {
        grid-template-columns: 1fr;
    }
}

.quota-sim-btn {
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    padding: 8px 10px;
    font-size: calc(0.78rem + 2px);
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s ease-in-out;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.quota-sim-btn span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.quota-sim-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.12);
}

.quota-sim-btn:active {
    transform: translateY(0);
}

/* Light Theme - High contrast, vibrant, readable font colors */
:root[data-theme="light"] .quota-sim-btn-vpin,
html[data-theme="light"] .quota-sim-btn-vpin,
[data-theme="light"] .quota-sim-btn-vpin {
    background: #e0f2fe !important;
    border: 1px solid #7dd3fc !important;
    color: #0369a1 !important;
}
:root[data-theme="light"] .quota-sim-btn-vpin:hover,
html[data-theme="light"] .quota-sim-btn-vpin:hover,
[data-theme="light"] .quota-sim-btn-vpin:hover {
    background: #bae6fd !important;
    border-color: #38bdf8 !important;
    color: #0284c7 !important;
}

:root[data-theme="light"] .quota-sim-btn-timer,
html[data-theme="light"] .quota-sim-btn-timer,
[data-theme="light"] .quota-sim-btn-timer {
    background: #fef3c7 !important;
    border: 1px solid #fcd34d !important;
    color: #b45309 !important;
}
:root[data-theme="light"] .quota-sim-btn-timer:hover,
html[data-theme="light"] .quota-sim-btn-timer:hover,
[data-theme="light"] .quota-sim-btn-timer:hover {
    background: #fde68a !important;
    border-color: #f59e0b !important;
    color: #92400e !important;
}

:root[data-theme="light"] .quota-sim-btn-datalog,
html[data-theme="light"] .quota-sim-btn-datalog,
[data-theme="light"] .quota-sim-btn-datalog {
    background: #f3e8ff !important;
    border: 1px solid #d8b4fe !important;
    color: #7e22ce !important;
}
:root[data-theme="light"] .quota-sim-btn-datalog:hover,
html[data-theme="light"] .quota-sim-btn-datalog:hover,
[data-theme="light"] .quota-sim-btn-datalog:hover {
    background: #e9d5ff !important;
    border-color: #a855f7 !important;
    color: #6b21a8 !important;
}

/* Dark Theme - Bright vivid text on dark pastel background */
:root[data-theme="dark"] .quota-sim-btn-vpin,
html[data-theme="dark"] .quota-sim-btn-vpin,
:root:not([data-theme="light"]) .quota-sim-btn-vpin {
    background: rgba(56, 189, 248, 0.15) !important;
    border: 1px solid rgba(56, 189, 248, 0.35) !important;
    color: #38bdf8 !important;
}
:root[data-theme="dark"] .quota-sim-btn-vpin:hover,
html[data-theme="dark"] .quota-sim-btn-vpin:hover,
:root:not([data-theme="light"]) .quota-sim-btn-vpin:hover {
    background: rgba(56, 189, 248, 0.25) !important;
    border-color: #38bdf8 !important;
    color: #7dd3fc !important;
}

:root[data-theme="dark"] .quota-sim-btn-timer,
html[data-theme="dark"] .quota-sim-btn-timer,
:root:not([data-theme="light"]) .quota-sim-btn-timer {
    background: rgba(245, 158, 11, 0.15) !important;
    border: 1px solid rgba(245, 158, 11, 0.35) !important;
    color: #fbbf24 !important;
}
:root[data-theme="dark"] .quota-sim-btn-timer:hover,
html[data-theme="dark"] .quota-sim-btn-timer:hover,
:root:not([data-theme="light"]) .quota-sim-btn-timer:hover {
    background: rgba(245, 158, 11, 0.25) !important;
    border-color: #fbbf24 !important;
    color: #fde68a !important;
}

:root[data-theme="dark"] .quota-sim-btn-datalog,
html[data-theme="dark"] .quota-sim-btn-datalog,
:root:not([data-theme="light"]) .quota-sim-btn-datalog {
    background: rgba(168, 85, 247, 0.15) !important;
    border: 1px solid rgba(168, 85, 247, 0.35) !important;
    color: #c084fc !important;
}
:root[data-theme="dark"] .quota-sim-btn-datalog:hover,
html[data-theme="dark"] .quota-sim-btn-datalog:hover,
:root:not([data-theme="light"]) .quota-sim-btn-datalog:hover {
    background: rgba(168, 85, 247, 0.25) !important;
    border-color: #c084fc !important;
    color: #e9d5ff !important;
}

/* Device Key Cards & Boxes (Light & Dark Theme Contrast Fix) */
.device-key-box,
.device-key-card {
    transition: all 0.2s ease;
}

:root[data-theme="light"] .device-key-box,
html[data-theme="light"] .device-key-box,
[data-theme="light"] .device-key-box,
:root[data-theme="light"] .device-key-card,
html[data-theme="light"] .device-key-card,
[data-theme="light"] .device-key-card {
    background: #f8fafc !important;
    border: 1px solid #cbd5e1 !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

:root[data-theme="dark"] .device-key-box,
html[data-theme="dark"] .device-key-box,
:root:not([data-theme="light"]) .device-key-box,
:root[data-theme="dark"] .device-key-card,
html[data-theme="dark"] .device-key-card,
:root:not([data-theme="light"]) .device-key-card {
    background: rgba(0, 0, 0, 0.25) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
}

:root[data-theme="dark"] .primary-key-box,
html[data-theme="dark"] .primary-key-box,
:root:not([data-theme="light"]) .primary-key-box {
    border-color: rgba(56, 189, 248, 0.3) !important;
}

:root[data-theme="light"] .device-key-title,
html[data-theme="light"] .device-key-title,
[data-theme="light"] .device-key-title {
    color: #0f172a !important;
}

:root[data-theme="dark"] .device-key-title,
html[data-theme="dark"] .device-key-title,
:root:not([data-theme="light"]) .device-key-title {
    color: #f8fafc !important;
}

/* Primary Device Key Badge */
.device-key-badge-primary {
    font-size: calc(0.68rem + 2px);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
}

:root[data-theme="light"] .device-key-badge-primary,
html[data-theme="light"] .device-key-badge-primary,
[data-theme="light"] .device-key-badge-primary {
    background: #e0f2fe !important;
    color: #0369a1 !important;
    border: 1px solid #bae6fd !important;
}

:root[data-theme="dark"] .device-key-badge-primary,
html[data-theme="dark"] .device-key-badge-primary,
:root:not([data-theme="light"]) .device-key-badge-primary {
    background: rgba(56, 189, 248, 0.15) !important;
    color: #38bdf8 !important;
    border: 1px solid rgba(56, 189, 248, 0.3) !important;
}

/* Secondary Device Key Badge */
.device-key-badge-secondary {
    font-size: calc(0.68rem + 2px);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
}

:root[data-theme="light"] .device-key-badge-secondary,
html[data-theme="light"] .device-key-badge-secondary,
[data-theme="light"] .device-key-badge-secondary {
    background: #f3e8ff !important;
    color: #7e22ce !important;
    border: 1px solid #d8b4fe !important;
}

:root[data-theme="dark"] .device-key-badge-secondary,
html[data-theme="dark"] .device-key-badge-secondary,
:root:not([data-theme="light"]) .device-key-badge-secondary {
    background: rgba(168, 85, 247, 0.15) !important;
    color: #c084fc !important;
    border: 1px solid rgba(168, 85, 247, 0.3) !important;
}

/* Delete Key Button */
:root[data-theme="light"] .btn-delete-device-key,
html[data-theme="light"] .btn-delete-device-key,
[data-theme="light"] .btn-delete-device-key {
    color: #dc2626 !important;
}
:root[data-theme="light"] .btn-delete-device-key:hover,
html[data-theme="light"] .btn-delete-device-key:hover,
[data-theme="light"] .btn-delete-device-key:hover {
    background: #fee2e2 !important;
}

:root[data-theme="dark"] .btn-delete-device-key,
html[data-theme="dark"] .btn-delete-device-key,
:root:not([data-theme="light"]) .btn-delete-device-key {
    color: #ef4444 !important;
}
:root[data-theme="dark"] .btn-delete-device-key:hover,
html[data-theme="dark"] .btn-delete-device-key:hover,
:root:not([data-theme="light"]) .btn-delete-device-key:hover {
    background: rgba(239, 68, 68, 0.15) !important;
}

/* Settings Users Management Subtitle (+3px) */
#settingsUserManage .subtitle {
    font-size: calc(0.85rem + 3px) !important;
    line-height: 1.5 !important;
}

/* Database Inspector Modal Responsive Optimization (Mobile View) */
@media (max-width: 600px) {
    #dbInspectorModal .modal-card {
        padding: 14px 10px !important;
        width: 98% !important;
        max-height: 94vh !important;
        border-radius: 12px !important;
    }
    #dbInspectorModal .modal-header {
        margin-bottom: 12px !important;
        padding-bottom: 8px !important;
    }
    #dbInspectorModal .modal-body {
        padding: 8px 2px !important;
    }
    #datalogCategoriesGrid {
        grid-template-columns: 1fr !important;
    }

    .mailbox-dialog {
        width: 100% !important;
        max-width: 100% !important;
        height: 85vh !important;
        max-height: 85vh !important;
        border-radius: 12px !important;
    }
}