@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
    /* Light Mode Variables */
    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #edf2f7 100%);
    --bg-surface: #f8fafc;
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-light: rgba(37, 99, 235, 0.08);
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    --danger-light: rgba(239, 68, 68, 0.08);
    --success-color: #10b981;
    --success-hover: #059669;
    --success-light: rgba(16, 185, 129, 0.08);
    --warning-color: #d97706;
    --warning-light: rgba(245, 158, 11, 0.08);
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --nav-bg: #ffffff;
    --nav-border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 10px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
    /* Dark Mode Variables */
    --bg-gradient: linear-gradient(135deg, #0b0f19 0%, #1e293b 100%);
    --bg-surface: #0b0f19;
    --card-bg: #1e293b;
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: rgba(59, 130, 246, 0.15);
    --danger-color: #f87171;
    --danger-hover: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.15);
    --success-color: #34d399;
    --success-hover: #10b981;
    --success-light: rgba(16, 185, 129, 0.15);
    --warning-color: #fbbf24;
    --warning-light: rgba(245, 158, 11, 0.15);
    --input-bg: #0f172a;
    --input-border: rgba(255, 255, 255, 0.15);
    --nav-bg: #1e293b;
    --nav-border: rgba(255, 255, 255, 0.08);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.45);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Prompt', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    transition: background 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.35;
}

h1 { font-size: 1.6rem; }
h2 { font-size: 1.3rem; margin-bottom: 0.5rem; }
h3 { font-size: 1.05rem; }
p { color: var(--text-secondary); line-height: 1.5; font-size: 0.9rem; }

/* Container */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.25rem 1rem 2.5rem 1rem;
    width: 100%;
}

.glass-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
}

/* Top App Header / Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--nav-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav-brand {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.nav-brand img {
    border-radius: 8px;
    flex-shrink: 0;
}

.nav-brand span {
    background: linear-gradient(135deg, #2563eb, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.nav-brand .admin-tag {
    background: linear-gradient(135deg, #ef4444, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
}

.nav-links-desktop {
    display: none;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.nav-links-desktop a {
    color: var(--text-secondary);
    white-space: nowrap;
    display: inline-block;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.2s;
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
}

.nav-links-desktop a:hover {
    color: var(--accent-color);
    background: var(--accent-light);
}

/* Button & Icon Styling */
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.btn-icon:active {
    transform: scale(0.94);
    background: var(--accent-light);
}

/* Mobile Drawer (Slide-out menu) */
.mobile-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(3px);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
}

.mobile-drawer-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: -310px;
    width: 300px;
    height: 100%;
    background: var(--card-bg);
    box-shadow: -4px 0 25px rgba(0, 0, 0, 0.2);
    z-index: 201;
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    transition: right 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
}

.mobile-drawer.active {
    right: 0;
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--card-border);
}

.drawer-user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    padding: 0.85rem;
    background: var(--accent-light);
    border-radius: 12px;
}

.drawer-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-color);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.05rem;
    flex-shrink: 0;
}

.drawer-links {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    flex: 1;
}

.drawer-links a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0.85rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 10px;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.drawer-links a svg {
    flex-shrink: 0;
}

.drawer-links a:hover, .drawer-links a.active {
    background: var(--accent-light);
    color: var(--accent-color);
}

.drawer-links a.danger {
    color: var(--danger-color);
}

.drawer-links a.danger:hover {
    background: var(--danger-light);
}

/* Dashboard Banner Card on Index */
.dashboard-hero {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.25rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.dashboard-hero-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.dashboard-hero-action {
    display: flex;
    gap: 0.75rem;
}

/* Form Controls */
.form-group {
    margin-bottom: 1.15rem;
    min-width: 0;
    max-width: 100%;
}

label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.4rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

label svg {
    flex-shrink: 0;
}

input, select, textarea {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    min-height: 48px;
    padding: 0.65rem 0.85rem;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 16px; /* Avoid iOS auto-zoom */
    outline: none;
    transition: all 0.2s ease;
}

input[type="date"], input[type="time"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    display: block;
}

textarea {
    min-height: 75px;
    resize: vertical;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    min-width: 0;
    max-width: 100%;
}

/* Standard Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.65rem 1.25rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
    gap: 0.45rem;
    text-align: center;
}

.btn svg {
    flex-shrink: 0;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), #3b82f6);
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2);
}

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

.btn-danger {
    background: var(--danger-color);
    color: #ffffff;
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--card-border);
    color: var(--text-primary);
}

.btn-outline:active {
    background: var(--accent-light);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-sm {
    min-height: 38px;
    padding: 0.35rem 0.75rem;
    font-size: 0.84rem;
    border-radius: 8px;
}

.btn-block {
    width: 100%;
}

/* Badges for Status */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.65rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-pending {
    background: var(--warning-light);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-approved {
    background: var(--accent-light);
    color: var(--accent-color);
    border: 1px solid rgba(37, 99, 235, 0.3);
}

.badge-rejected {
    background: var(--danger-light);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-completed {
    background: var(--success-light);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Trip Card (Clean, Grounded Mobile List Item) */
.trip-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 1.1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.trip-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.65rem;
    border-bottom: 1px solid var(--card-border);
}

.trip-card-date {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--text-primary);
}

.trip-card-date svg {
    flex-shrink: 0;
}

.trip-card-body {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.85rem;
}

.trip-info-row {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.trip-info-row svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--accent-color);
}

/* Card Action Toolbar (Neat, Orderly, Grounded) */
.trip-card-actions {
    display: flex;
    gap: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--card-border);
}

.trip-card-actions .btn {
    flex: 1;
}

.trip-card-actions .btn-delete {
    flex: 0 0 42px;
    padding: 0;
    border-color: var(--danger-color);
    color: var(--danger-color);
}

/* Alerts */
.alert {
    padding: 0.85rem 1rem;
    border-radius: 10px;
    margin-bottom: 1.15rem;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert svg {
    flex-shrink: 0;
}

.alert-error {
    background: var(--danger-light);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger-color);
}

.alert-success {
    background: var(--success-light);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success-color);
}

/* Auth Page (Perfect Vertical & Horizontal Centering) */
.auth-wrapper {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 1.5rem 1rem;
    width: 100%;
}

.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
    padding: 2rem 1.5rem;
    margin: auto;
}

.auth-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-header img {
    margin-bottom: 0.75rem;
    border-radius: 14px;
}

.auth-btn-center {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 1.5rem;
    width: 100%;
}

.auth-btn-center .btn {
    width: 100%;
    min-height: 48px;
    font-size: 1rem;
}

/* Responsive Table Switching */
.table-desktop-view {
    display: none;
}

.cards-mobile-view {
    display: block;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.25s ease forwards;
}

/* Select2 Customization */
.select2-container {
    width: 100% !important;
    max-width: 100% !important;
}

.select2-container--default .select2-selection--single,
.select2-container--default .select2-selection--multiple {
    background-color: var(--input-bg) !important;
    border: 1.5px solid var(--input-border) !important;
    border-radius: 10px !important;
    min-height: 48px !important;
    padding: 5px 8px !important;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--text-primary) !important;
    line-height: 36px !important;
    font-size: 16px !important;
    padding-left: 4px !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 46px !important;
    right: 8px !important;
}

.select2-dropdown {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--card-border) !important;
    border-radius: 10px !important;
    box-shadow: var(--shadow-lg) !important;
    color: var(--text-primary) !important;
    z-index: 1000 !important;
}

.select2-container--default .select2-results__option {
    padding: 8px 12px !important;
    font-size: 15px !important;
}

.select2-container--default .select2-results__option--selected {
    background-color: var(--accent-light) !important;
    color: var(--accent-color) !important;
}

.select2-container--default .select2-results__option--highlighted.select2-results__option--selectable {
    background-color: var(--accent-color) !important;
    color: #ffffff !important;
}

.select2-container--default .select2-search--dropdown .select2-search__field {
    background-color: var(--input-bg) !important;
    border: 1px solid var(--input-border) !important;
    border-radius: 8px !important;
    color: var(--text-primary) !important;
    font-size: 16px !important;
    min-height: 40px !important;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice {
    background-color: var(--accent-color) !important;
    border: none !important;
    color: #ffffff !important;
    border-radius: 6px !important;
    padding: 3px 8px !important;
    font-size: 13px !important;
    margin-top: 3px !important;
}

/* Companion Grid (Checkboxes) */
.companion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(135px, 1fr));
    gap: 0.6rem;
    max-height: 280px;
    overflow-y: auto;
    padding: 0.2rem;
}



.companion-cb {
    display: none;
}

.companion-chip {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0.75rem 0.5rem;
    background: var(--card-bg);
    border: 1.5px solid var(--card-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    user-select: none;
    height: 100%;
}

.companion-chip .chip-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 0;
    transition: color 0.2s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
}

.companion-chip .chip-pos {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.companion-cb:checked + .companion-chip {
    border-color: var(--accent-color);
    background: var(--accent-light);
    order: -1;
}

.companion-cb:checked + .companion-chip .chip-name {
    color: var(--accent-color);
}

/* Tablet & Desktop Overrides (> 768px) */
@media (min-width: 768px) {
    .nav-links-desktop {
        display: flex;
        margin-left: auto;
    }

    .nav-actions {
        margin-left: 1rem;
    }

    #hamburger-toggle {
        display: none !important;
    }

    .btn-hamburger {
        display: none !important;
    }

    .container {
        padding: 2rem 1.5rem;
    }

    .form-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
    }

    .table-desktop-view {
        display: block;
    }

    .cards-mobile-view {
        display: none;
    }

    .table-responsive {
        overflow-x: auto;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 0.5rem;
    }

    th, td {
        padding: 0.85rem 1rem;
        text-align: left;
        border-bottom: 1px solid var(--card-border);
    }

    th {
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 0.03em;
    }

    td {
        font-size: 0.9rem;
    }

    tr:hover td {
        background: var(--accent-light);
    }
}