@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
    /* HALO LIGHT THEME — Red / Maroon / Grey / White / Black */
    --bg-app: #F5F5F5;
    --surface: #FFFFFF;
    --elevated: #ECECEC;
    --border-color: #D5D5D5;
    --border-strong: #AAAAAA;
    --text-main: #1A1A1A;
    --text-muted: #6B6B6B;
    --text-faint: #9E9E9E;

    --primary: #B71C1C;
    --primary-hover: #D32F2F;
    --primary-pressed: #7F0000;
    --accent: #1A1A1A;
    --maroon: #5C0A0A;
    --error: #FF3A5C;
    --success: #2E7D32;
    --warning: #F9A825;
    --info: #0288D1;
    --focus: rgba(183, 28, 28, 0.30);
    --tab-bg: #ECECEC;
    --overlay-bg: rgba(255, 255, 255, 0.88);
    --spinner-track: rgba(0, 0, 0, 0.06);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* Shape Scale */
    --rounded-none: 0px;
    --rounded-sm: 6px;
    --rounded-md: 10px;
    --rounded-lg: 16px;
    --rounded-xl: 24px;
    --rounded-full: 999px;

    /* Spacing Scale */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
    --space-xxl: 64px;

    /* Elevation (light mode — subtle) */
    --elevation-sm: 0 1px 0 rgba(0,0,0,0.02) inset, 0 1px 2px rgba(0,0,0,0.06);
    --elevation-md: 0 8px 24px rgba(0,0,0,0.08), 0 1px 0 rgba(255,255,255,0.8) inset;
    --elevation-lg: 0 24px 60px rgba(0,0,0,0.12), 0 1px 0 rgba(255,255,255,0.8) inset;
    --elevation-focus: 0 0 0 3px var(--focus);

    /* Motion */
    --transition-fast: 120ms cubic-bezier(0.2, 0.6, 0.2, 1);
    --transition-base: 150ms cubic-bezier(0.2, 0.6, 0.2, 1);
    --transition-slow: 240ms cubic-bezier(0.2, 0.6, 0.2, 1);
}

[data-theme="dark"] {
    /* HALO DARK — Deep space substrate with Red / Maroon accents */
    --bg-app: #0A0B0F;
    --surface: #14151C;
    --elevated: #1E2029;
    --border-color: #2A2D38;
    --border-strong: #3A3D4A;
    --text-main: #F2F4F8;
    --text-muted: #9AA0AE;
    --text-faint: #5C6170;

    --primary: #D32F2F;
    --primary-hover: #EF5350;
    --primary-pressed: #B71C1C;
    --accent: #F2F4F8;
    --maroon: #8B1A1A;
    --error: #FF3A5C;
    --success: #2BE08C;
    --warning: #F5D547;
    --info: #3DD7E5;
    --focus: rgba(211, 47, 47, 0.35);
    --tab-bg: #14151C;
    --overlay-bg: rgba(10, 10, 15, 0.88);
    --spinner-track: rgba(255, 255, 255, 0.05);

    /* Elevation (dark mode — heavier) */
    --elevation-sm: 0 1px 0 rgba(255,255,255,0.02) inset, 0 1px 2px rgba(0,0,0,0.4);
    --elevation-md: 0 8px 24px rgba(0,0,0,0.45), 0 1px 0 rgba(255,255,255,0.03) inset;
    --elevation-lg: 0 24px 60px rgba(0,0,0,0.55), 0 1px 0 rgba(255,255,255,0.04) inset;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body, html {
    width: 100%;
    height: 100%;
    background-color: var(--bg-app);
    color: var(--text-main);
}

body {
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 32px 16px;
}

/* Locked layout for interactive app dashboards containing main navbar */
body:has(.main-navbar) {
    height: 100%;
    overflow: hidden;
    padding: 0;
}

/* STANDALONE GATEWAY LOGIN SCREEN OVERHAUL */
.login-screen {
    width: 100%;
    max-width: 400px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-app);
    margin: auto;
}

.brand-header {
    text-align: center;
    margin-bottom: 32px;
}

.brand-logo-img {
    width: 170px;
    height: 170px;
    object-fit: contain;
    margin-bottom: 12px;
}

.brand-header h2 {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: -0.015em;
    text-transform: uppercase;
}

.brand-header p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* PROFILE/ROLE SELECTOR TABS */
.login-tabs {
    display: flex;
    background-color: var(--tab-bg);
    padding: 4px;
    border-radius: var(--rounded-full);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--border-color);
}

.login-tab {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 10px 0;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--rounded-full);
    cursor: pointer;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.login-tab.active {
    background-color: var(--primary);
    color: #ffffff;
    border: 1px solid var(--primary);
}

/* INPUT COMPONENT BANKS */
.input-group {
    margin-bottom: 18px;
}

.input-group label {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    line-height: 1.2;
}

.input-group input,
.input-group select,
.input-group textarea {
    width: 100%;
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    padding: 0 14px;
    height: 40px;
    border-radius: var(--rounded-md);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--text-main);
    outline: none;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.input-group textarea {
    height: auto;
    padding: 12px 14px;
    min-height: 80px;
    resize: vertical;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    border-color: var(--primary);
    box-shadow: var(--elevation-focus);
}

.error-msg {
    color: var(--error);
    font-size: 12px;
    margin-bottom: 12px;
    min-height: 16px;
}

/* BUTTON CONTROLS */
.primary-btn {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    padding: 0 18px;
    height: 40px;
    border-radius: var(--rounded-md);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.8125rem;
    width: 100%;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: background-color var(--transition-base);
    box-shadow: var(--elevation-sm);
}

.primary-btn:hover {
    background-color: var(--primary-hover);
}

.primary-btn:active {
    background-color: var(--primary-pressed);
}

.primary-btn:focus-visible {
    outline: none;
    box-shadow: var(--elevation-focus);
}

/* TOP TOOLBAR */
.main-navbar {
    width: 100%;
    height: 64px;
    background-color: var(--surface);
    color: var(--text-main);
    display: flex;
    align-items: center;
    padding: 0 var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    z-index: 40;
    flex-shrink: 0;
}

.nav-menu-btn {
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.nav-menu-btn svg {
    width: 24px;
    height: 24px;
    fill: var(--text-main);
}

.navbar-brand {
    flex: 1;
    font-family: var(--font-sans);
    font-size: 1.125rem;
    font-weight: 600;
    margin-left: 12px;
    text-transform: uppercase;
    letter-spacing: -0.01em;
}

/* SLIDEOUT SIDEBAR DRAWER COMPONENTS */
.sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background-color: var(--bg-app);
    z-index: 1200;
    box-shadow: 4px 0 15px rgba(0,0,0,0.5);
    transition: left 0.22s ease-out;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}

.sidebar.open { left: 0; }

.sidebar-header {
    background-color: var(--surface);
    padding: 24px 16px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.sidebar-header h4 { font-size: 15px; font-weight: 600; color: var(--accent); }
.sidebar-header p { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.sidebar-menu { padding: 16px 0; flex: 1; overflow-y: auto; }
.sidebar-menu a { display: block; padding: 14px 20px; color: var(--text-main); text-decoration: none; font-size: 14px; font-weight: 500; }
.sidebar-menu a:active { background-color: var(--surface); }
.menu-divider { border: 0; border-top: 1px solid var(--border-color); margin: 8px 0; }

/* Sidebar Footer & Logout Button */
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    background-color: var(--surface);
    flex-shrink: 0;
}

.sidebar-footer .logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 var(--space-md);
    height: 40px;
    color: var(--primary);
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    border: 1px solid var(--border-strong);
    background-color: var(--surface);
    border-radius: var(--rounded-md);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.sidebar-footer .logout-btn:hover {
    background-color: var(--elevated);
    border-color: var(--primary);
}

.sidebar-footer .logout-btn:active {
    background-color: var(--surface);
}

.sidebar-footer .logout-icon {
    width: 18px;
    height: 18px;
    fill: currentColor;
}


.sidebar-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.6);
    z-index: 1100; display: none;
}
.sidebar-overlay.active { display: block; }

/* REUSABLE MATERIAL VIEWPORT CARD DECK PANELS */
#app-content { 
    flex: 1; 
    width: 100%;
    overflow-y: auto; 
    padding: 16px; 
}

.sub-viewport { display: none; }
.sub-viewport.active { display: block; }

.tile-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 4px 0;
}

.nav-tile {
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--rounded-lg);
    padding: var(--space-lg) var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: border-color var(--transition-base), background-color var(--transition-base);
}

.nav-tile:hover { border-color: var(--primary); background-color: var(--elevated); }
.nav-tile:active { transform: scale(0.97); }
.nav-tile svg { width: 32px; height: 32px; fill: var(--primary); margin-bottom: 12px; }
.nav-tile span { font-family: var(--font-sans); font-size: 0.8125rem; font-weight: 600; color: var(--text-main); }

.back-text-link {
    background: none; border: none; color: var(--primary);
    font-size: 14px; font-weight: 600; margin-bottom: 16px; cursor: pointer; display: block;
}

.card {
    background-color: var(--surface);
    border-radius: var(--rounded-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    border: 1px solid var(--border-color);
    transition: border-color var(--transition-base);
}
.card h3 {
    font-family: var(--font-sans);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--primary);
    letter-spacing: -0.01em;
}
.card p { font-size: 0.9375rem; color: var(--text-muted); line-height: 1.55; }
.log-container { font-family: var(--font-mono); font-size: 0.8125rem; color: var(--text-muted); line-height: 1.6; }

/* PORTAL SELECTION GATEWAY */
.gateway-container {
    width: 100%;
    max-width: 900px;
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: auto;
}

.portal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    width: 100%;
    margin-top: 32px;
}

@media (max-width: 768px) {
    .portal-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .gateway-container {
        padding: 16px;
    }
}

.portal-card {
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--rounded-lg);
    padding: 32px var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-slow), transform var(--transition-slow), box-shadow var(--transition-slow);
    text-decoration: none;
    color: inherit;
}

.portal-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: var(--elevation-md);
}

.portal-card:active {
    transform: translateY(-2px);
}

.portal-card-icon {
    width: 64px;
    height: 64px;
    background-color: rgba(183, 28, 28, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: background-color var(--transition-slow);
}

.portal-card:hover .portal-card-icon {
    background-color: var(--primary);
}

.portal-card-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--primary);
    transition: fill 0.25s;
}

.portal-card:hover .portal-card-icon svg {
    fill: #ffffff;
}

.portal-card h3 {
    font-family: var(--font-sans);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--accent);
    letter-spacing: -0.01em;
}

.portal-card p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: var(--space-lg);
    flex-grow: 1;
}

.portal-card .portal-btn-link {
    background-color: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text-main);
    padding: 0 18px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--rounded-md);
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    width: 100%;
    text-align: center;
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.portal-card:hover .portal-btn-link {
    background-color: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

/* =========================================================================
 * 5. FULLCALENDAR & CHART.JS BRUTALIST OVERRIDES
 * ========================================================================= */
.fc {
    --fc-border-color: var(--border-color);
    --fc-page-bg-color: var(--surface);
    --fc-neutral-bg-color: var(--bg-app);
    --fc-list-event-hover-bg-color: var(--bg-app);
    --fc-today-bg-color: rgba(183, 28, 28, 0.08);
    color: var(--text-main);
    font-size: 0.8125rem;
}
.fc .fc-toolbar-title {
    font-size: 15px !important;
    font-weight: 700 !important;
    color: var(--accent) !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
}
.fc .fc-button-primary {
    background-color: var(--surface) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
    font-size: 11px !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    padding: 6px 10px !important;
    border-radius: 6px !important;
    transition: background-color 0.2s, border-color 0.2s !important;
}
.fc .fc-button-primary:hover {
    background-color: var(--primary) !important;
    border-color: var(--primary) !important;
    color: #ffffff !important;
}
.fc .fc-button-primary:disabled {
    background-color: var(--bg-app) !important;
    color: var(--text-muted) !important;
    border-color: var(--border-color) !important;
    opacity: 0.6;
}
.fc .fc-col-header-cell-cushion {
    font-size: 11px !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    color: var(--text-muted) !important;
    text-decoration: none !important;
}
.fc .fc-daygrid-day-number {
    font-size: 12px !important;
    font-weight: 600 !important;
    color: var(--text-main) !important;
    padding: 4px !important;
    text-decoration: none !important;
}
.fc .fc-daygrid-day.fc-day-today {
    background-color: rgba(183, 28, 28, 0.08) !important;
    border: 2px solid var(--primary) !important;
}
.fc-event {
    cursor: pointer !important;
    border-radius: 4px !important;
    padding: 2px 4px !important;
    font-size: 10px !important;
    font-weight: 700 !important;
    text-align: center !important;
    border: 1px solid transparent !important;
    margin: 1px 2px !important;
}
.event-present {
    background-color: rgba(34, 197, 94, 0.15) !important;
    color: #22c55e !important;
    border-color: #22c55e !important;
}
.event-absent {
    background-color: rgba(239, 68, 68, 0.15) !important;
    color: #ef4444 !important;
    border-color: #ef4444 !important;
}
.event-leave {
    background-color: rgba(245, 158, 11, 0.15) !important;
    color: #f59e0b !important;
    border-color: #f59e0b !important;
}
.fc .fc-scrollgrid {
    border-radius: 8px !important;
    overflow: hidden !important;
    border: 1px solid var(--border-color) !important;
}

/* BRUTALIST FLOATING THEME TOGGLER */
.theme-toggler-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background-color: var(--surface);
    border: 1px solid var(--border-strong);
    color: var(--text-main);
    border-radius: var(--rounded-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    box-shadow: var(--elevation-md);
    transition: background-color var(--transition-base), border-color var(--transition-base);
    padding: 0;
}

.theme-toggler-btn:hover {
    background-color: var(--elevated);
    border-color: var(--primary);
}

.theme-toggler-btn:active {
    background-color: var(--surface);
}

.theme-toggler-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
    transition: transform 0.3s ease;
}

.theme-toggler-btn:hover svg {
    transform: rotate(15deg);
}

@media print {
    .theme-toggler-btn {
        display: none !important;
    }
}

/* User Avatar Placeholder Style */
.user-avatar-placeholder {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.125rem;
    border: 2px solid var(--maroon);
    flex-shrink: 0;
}

/* Spinner & Inline Loading UI Styles */
.pop-spinner {
    width: 44px;
    height: 44px;
    border: 4px solid var(--border-color, #cbd5e1);
    border-top: 4px solid var(--primary, #d61c22);
    border-radius: 50%;
    animation: popSpin 0.8s linear infinite;
    box-sizing: border-box;
}

@keyframes popSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.pop-inline-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    gap: 16px;
    width: 100%;
    box-sizing: border-box;
}

.pop-inline-loader-text {
    font-weight: 800;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted, #64748b);
    text-align: center;
}

/* BRUTALIST ACADEMIC SESSION SELECTOR */
.session-selector-container {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.session-selector-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@media (max-width: 480px) {
    .session-selector-label {
        display: none;
    }
}

.session-select {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0 10px;
    height: 32px;
    border-radius: var(--rounded-sm);
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition-base);
}

.session-select:focus {
    border-color: var(--primary);
    box-shadow: var(--elevation-focus);
}

/* ==========================================
   MOBILE-FIRST GLOBAL RESPONSIVE OVERRIDES
   ========================================== */
@media (max-width: 768px) {

    /* ── 1. GRID COLLAPSE ─────────────────────────── */
    .tile-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    /* Force ALL inline-styled grids (1fr 1fr, repeat, etc.) to single col */
    div[style*="display: grid"],
    div[style*="display:grid"] {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }

    /* ── 2. DASHBOARD NAV TILES ───────────────────── */
    .nav-tile {
        padding: 14px 18px !important;
        flex-direction: row !important;
        justify-content: flex-start !important;
        gap: var(--space-md) !important;
        border-radius: var(--rounded-md) !important;
        transition: background-color var(--transition-base) !important;
    }

    .nav-tile:hover {
        background-color: var(--elevated) !important;
    }

    .nav-tile:active {
        background-color: var(--elevated) !important;
    }

    .nav-tile svg {
        margin-bottom: 0 !important;
        width: 24px !important;
        height: 24px !important;
        flex-shrink: 0;
    }

    .nav-tile span {
        font-size: 14px !important;
        text-align: left;
    }

    /* ── 3. TABLES ─────────────────────────────────── */
    table {
        display: block !important;
        width: 100% !important;
        min-width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
    }

    thead, tbody, tfoot, tr {
        width: 100% !important;
    }

    th, td {
        padding: 8px 6px !important;
        font-size: 12px !important;
        word-break: break-word !important;
    }

    /* ── 4. CARDS — FULL-WIDTH + INTERNAL STACKING ── */
    .card {
        padding: 12px !important;
        border-radius: 8px !important;
        margin-bottom: 12px !important;
        overflow-x: hidden !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Force any card's direct flex-row children to stack vertically */
    .card > div[style*="display: flex"]:not([style*="flex-direction: column"]),
    .card > div[style*="display:flex"]:not([style*="flex-direction:column"]) {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 10px !important;
    }

    /* Card headings — slightly smaller on mobile */
    .card h3 {
        font-size: 14px !important;
    }

    .card p {
        font-size: 13px !important;
    }

    /* ── 5. BODY / VIEWPORT LAYOUT ─────────────────── */
    body {
        font-size: 14px !important;
        padding: 8px !important;
        height: auto !important;
        min-height: 100% !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
    }

    body:has(.main-navbar) {
        height: auto !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        padding: 0 !important;
    }

    #app-content {
        padding: 10px !important;
        overflow-y: visible !important;
        height: auto !important;
        flex: none !important;
        min-height: calc(100vh - 64px) !important;
    }

    /* Sticky mobile header */
    .main-navbar {
        position: sticky !important;
        top: 0 !important;
        z-index: 1000 !important;
        background-color: var(--surface) !important;
        box-shadow: 0 2px 8px rgba(0,0,0,0.12) !important;
    }

    /* Sidebar scroll lock */
    body.sidebar-open {
        overflow: hidden !important;
        height: 100% !important;
    }

    /* ── 6. WIZARD / REGISTRATION ──────────────────── */
    body, html {
        height: auto !important;
        min-height: 100% !important;
    }

    .registration-card {
        padding: 16px 12px !important;
        border-radius: 10px !important;
        margin: 8px auto !important;
    }

    .step-indicator {
        flex-direction: column !important;
        gap: 8px !important;
        align-items: flex-start !important;
    }

    .step-indicator > div:nth-child(2) {
        display: none !important;
    }

    .step-badge {
        font-size: 12px !important;
        gap: 6px !important;
        width: 100% !important;
        padding: 8px 12px !important;
        border-radius: 6px !important;
        background: var(--surface) !important;
        border: 1px solid var(--border-color) !important;
        box-sizing: border-box !important;
    }

    .step-badge.active {
        border-color: var(--primary) !important;
        background: rgba(183, 28, 28, 0.05) !important;
    }

    /* ── 7. FORM FIELD COLLAPSE ────────────────────── */
    div[style*="grid-column"] {
        grid-column: span 1 !important;
    }

    input, select, textarea {
        max-width: 100% !important;
        box-sizing: border-box !important;
        font-size: 14px !important;
    }

    /* ── 8. BUTTONS — UNIVERSAL MOBILE SIZING ──────── */

    /* Base primary-btn: full-width by default on mobile */
    .primary-btn {
        padding: 12px 16px !important;
        font-size: 13px !important;
        border-radius: 8px !important;
        width: 100% !important;
        box-sizing: border-box !important;
        min-height: 44px !important;      /* minimum touch target */
    }

    /* When buttons sit inside a flex-row, let them wrap and share width */
    div[style*="display: flex"]:not([style*="flex-direction: column"]):has(button),
    div[style*="display: flex"]:not([style*="flex-direction: column"]):has(.primary-btn),
    div[style*="display: flex"]:not([style*="flex-direction: column"]):has(a.logout-btn),
    div[style*="display:flex"]:not([style*="flex-direction:column"]):has(button),
    div[style*="display:flex"]:not([style*="flex-direction:column"]):has(.primary-btn),
    div[style*="display:flex"]:not([style*="flex-direction:column"]):has(a.logout-btn) {
        flex-wrap: wrap !important;
    }

    div[style*="display: flex"]:not([style*="flex-direction: column"]) > button,
    div[style*="display:flex"]:not([style*="flex-direction:column"]) > button,
    div[style*="display: flex"]:not([style*="flex-direction: column"]) > .primary-btn,
    div[style*="display:flex"]:not([style*="flex-direction:column"]) > .primary-btn,
    div[style*="display: flex"]:not([style*="flex-direction: column"]) > a.logout-btn,
    div[style*="display:flex"]:not([style*="flex-direction:column"]) > a.logout-btn {
        flex: 1 1 100% !important;
        min-width: 0 !important;
        font-size: 12px !important;
        padding: 10px 12px !important;
        white-space: normal !important;
        text-align: center !important;
        box-sizing: border-box !important;
    }

    /* Small inline action buttons (Delete, View, Mark Paid) keep compact */
    .primary-btn[style*="padding: 4px"],
    .primary-btn[style*="padding: 6px"],
    .primary-btn[style*="padding:4px"],
    .primary-btn[style*="padding:6px"] {
        width: auto !important;
        flex: 0 1 auto !important;
        padding: 8px 14px !important;
        font-size: 12px !important;
        min-height: 36px !important;
    }

    /* Action button groups inside cards — flex-row that wraps */
    .card div[style*="display: flex"][style*="gap: 8px"],
    .card div[style*="display:flex"][style*="gap:8px"] {
        flex-wrap: wrap !important;
        gap: 8px !important;
    }

    .card div[style*="display: flex"][style*="gap: 8px"] > button,
    .card div[style*="display:flex"][style*="gap:8px"] > button {
        flex: 1 1 auto !important;
        min-width: 80px !important;
    }

    /* ── 9. NOTICE/LOG ITEM ROWS ───────────────────── */
    div[style*="border-bottom"][style*="display: flex"][style*="justify-content: space-between"]:has(button),
    div[style*="border-bottom"][style*="display: flex"][style*="justify-content: space-between"]:has(.primary-btn),
    #admin-notices-list > div {
        flex-direction: column !important;
        gap: 8px !important;
        align-items: flex-start !important;
    }

    /* ── 11. CALENDAR CARD (PDF viewer) ────────────── */
    .card[style*="max-width: 400px"],
    .card[style*="max-width:400px"] {
        max-width: 100% !important;
        padding: 20px 16px !important;
    }

    /* ── 12. RESULT / FEE STAT CARDS ───────────────── */
    .card[style*="justify-content:space-around"],
    .card[style*="justify-content: space-around"] {
        flex-direction: column !important;
        align-items: center !important;
        gap: 16px !important;
    }

    /* ── 13. PORTAL GATEWAY CARDS ──────────────────── */
    .portal-card {
        padding: 20px 16px !important;
        border-radius: 12px !important;
    }

    .portal-card h3 {
        font-size: 16px !important;
    }

    .portal-card p {
        font-size: 12px !important;
        margin-bottom: 16px !important;
    }

    .portal-card-icon {
        width: 52px !important;
        height: 52px !important;
        margin-bottom: 14px !important;
    }

    .portal-card-icon svg {
        width: 26px !important;
        height: 26px !important;
    }

    /* ── 14. FULLCALENDAR MOBILE TWEAKS ────────────── */
    .fc .fc-toolbar {
        flex-direction: column !important;
        gap: 8px !important;
        align-items: stretch !important;
    }

    .fc .fc-toolbar-title {
        font-size: 13px !important;
        text-align: center !important;
    }

    .fc .fc-button-primary {
        font-size: 10px !important;
        padding: 5px 8px !important;
    }

    /* ── 15. LOGIN SCREEN MOBILE TWEAKS ────────────── */
    .login-screen {
        padding: 16px !important;
    }

    .brand-logo-img {
        width: 120px !important;
        height: 120px !important;
    }

    .brand-header h2 {
        font-size: 18px !important;
    }

    .login-tab {
        padding: 10px 0 !important;
        font-size: 12px !important;
    }

    .input-group input {
        padding: 12px !important;
        font-size: 14px !important;
    }

    /* ── 16. SIDEBAR MOBILE REFINEMENTS ────────────── */
    .sidebar {
        width: 260px !important;
        left: -260px !important;
    }

    .sidebar.open {
        left: 0 !important;
    }

    .sidebar-header {
        padding: 18px 14px !important;
    }

    .sidebar-menu a {
        padding: 12px 18px !important;
        font-size: 13px !important;
    }

    /* ── 17. THEME TOGGLER — SMALLER ON MOBILE ─────── */
    .theme-toggler-btn {
        width: 40px !important;
        height: 40px !important;
        bottom: 14px !important;
        right: 14px !important;
    }

    .theme-toggler-btn svg {
        width: 18px !important;
        height: 18px !important;
    }
}