/* ============================================
   Nhật Ký Tháo Dỡ - Design System
   ============================================ */

:root {
    --primary: #0d9488;
    --primary-hover: #0f766e;
    --primary-light: #ccfbf1;
    --primary-50: #f0fdfa;

    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;

    --bg: #f1f5f9;
    --surface: #ffffff;
    --border: #e2e8f0;
    --border-light: #f1f5f9;

    --text: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    --sidebar-bg: #1e293b;
    --sidebar-text: #94a3b8;
    --sidebar-hover: #334155;
    --sidebar-active: #0d9488;
    --sidebar-width: 260px;

    --radius: 10px;
    --radius-sm: 6px;
    --radius-lg: 14px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
    --transition: 0.2s ease;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.nowrap { white-space: nowrap; }

/* ============================================
   Layout
   ============================================ */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition);
    overflow-y: auto;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
}

.sidebar-logo svg { color: var(--primary); flex-shrink: 0; }

.sidebar-close {
    display: none;
    background: none; border: none; color: var(--sidebar-text); cursor: pointer;
    padding: 4px; border-radius: 4px;
}
.sidebar-close:hover { background: var(--sidebar-hover); }

.sidebar-nav {
    flex: 1;
    padding: 0.75rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    color: var(--sidebar-text);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: #fff;
    background: var(--sidebar-hover);
}

.nav-item.active {
    color: #fff;
    background: rgba(13, 148, 136, 0.15);
    border-left-color: var(--sidebar-active);
}

.nav-item svg { flex-shrink: 0; opacity: 0.7; }
.nav-item.active svg, .nav-item:hover svg { opacity: 1; }

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.user-avatar {
    width: 36px; height: 36px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-details {
    display: flex; flex-direction: column;
}

.user-name { color: #fff; font-weight: 600; font-size: 0.8125rem; }
.user-role { font-size: 0.75rem; color: var(--sidebar-text); }

.nav-logout { padding: 0.5rem 0; border-left: none; }
.nav-logout:hover { color: var(--danger); background: transparent; }

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.topbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.hamburger {
    display: none;
    background: none; border: none; cursor: pointer;
    color: var(--text); padding: 4px;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.content-area {
    padding: 1.5rem;
    max-width: 1400px;
}

.overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 90;
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
}

.card-header h3 {
    font-size: 0.9375rem;
    font-weight: 600;
}

.card-body {
    padding: 1.25rem;
}

/* ============================================
   Stats Grid
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

.stat-icon-primary { background: var(--primary-light); color: var(--primary); }
.stat-icon-success { background: var(--success-light); color: var(--success); }
.stat-icon-info { background: var(--info-light); color: var(--info); }
.stat-icon-danger { background: var(--danger-light); color: var(--danger); }

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* ============================================
   Charts
   ============================================ */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 1.5rem;
}

/* ============================================
   Tables
   ============================================ */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.8125rem;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.6875rem;
    letter-spacing: 0.05em;
    background: var(--bg);
    position: sticky;
    top: 0;
}

.table tbody tr:hover {
    background: var(--primary-50);
}

.table .link { font-weight: 500; }

.row-inactive { opacity: 0.5; }

.actions-cell {
    white-space: nowrap;
    display: flex;
    gap: 0.375rem;
}

/* ============================================
   Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 999px;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.badge-success { background: var(--success-light); color: #065f46; }
.badge-danger { background: var(--danger-light); color: #991b1b; }
.badge-warning { background: var(--warning-light); color: #92400e; }
.badge-info { background: var(--info-light); color: #1e40af; }
.badge-secondary { background: var(--border); color: var(--text-secondary); }

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font);
    white-space: nowrap;
    text-decoration: none;
}

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

.btn-secondary {
    background: var(--text-secondary);
    color: #fff;
}
.btn-secondary:hover { background: var(--text); color: #fff; }

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text-secondary);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-50);
}

.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.75rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-icon {
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; border: none; cursor: pointer;
    font-size: 1rem; font-weight: 700;
    transition: all var(--transition);
}

.btn-danger-icon {
    background: var(--danger-light);
    color: var(--danger);
}
.btn-danger-icon:hover { background: var(--danger); color: #fff; }

/* ============================================
   Forms
   ============================================ */
.form-control {
    width: 100%;
    padding: 0.55rem 0.75rem;
    font-size: 0.875rem;
    font-family: var(--font);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13,148,136,0.15);
}

.form-control-sm {
    padding: 0.35rem 0.5rem;
    font-size: 0.8125rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.form-group label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
}

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

.form-grid .col-2 { grid-column: 1 / -1; }

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

.form-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    padding-top: 0.5rem;
}

.form-inline-grid {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: flex-end;
}

.form-inline-grid .form-control { width: auto; min-width: 150px; flex: 1; }

textarea.form-control { resize: vertical; min-height: 80px; }

.inline-edit { display: contents; }

.toggle-label {
    display: flex; align-items: center; gap: 0.5rem;
    font-size: 0.8125rem; cursor: pointer;
}

/* ============================================
   Filter
   ============================================ */
.filter-card {
    margin-bottom: 1rem;
    padding: 1rem 1.25rem;
}

.filter-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.filter-row {
    display: flex;
    gap: 0.625rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-row .form-control { flex: 1; min-width: 140px; }
.filter-row .btn { flex-shrink: 0; }

.action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

/* ============================================
   Upload Zone
   ============================================ */
.upload-zone {
    position: relative;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-50);
}

.upload-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-placeholder {
    color: var(--text-muted);
}

.upload-placeholder svg { margin-bottom: 0.5rem; }
.upload-placeholder p { font-size: 0.875rem; }
.upload-placeholder strong { color: var(--primary); }

.upload-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.preview-item {
    position: relative;
    width: 100px; height: 100px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

.preview-item img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.preview-remove {
    position: absolute;
    top: 2px; right: 2px;
    width: 22px; height: 22px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none; border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    display: flex; align-items: center; justify-content: center;
}

/* ============================================
   Image Grid & Gallery
   ============================================ */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.75rem;
}

.image-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

.image-item img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.image-delete-form {
    position: absolute;
    top: 4px; right: 4px;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem;
}

.gallery-item {
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition);
    border: 1px solid var(--border);
}

.gallery-item:hover { transform: scale(1.03); }

.gallery-item img {
    width: 100%; height: 100%;
    object-fit: cover;
}

/* ============================================
   Lightbox
   ============================================ */
.lightbox {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.lightbox.active { display: flex; }

.lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius);
}

.lightbox-close, .lightbox-prev, .lightbox-next {
    position: absolute;
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--transition);
}

.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover {
    background: rgba(255,255,255,0.3);
}

.lightbox-close { top: 1rem; right: 1rem; }
.lightbox-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1rem; top: 50%; transform: translateY(-50%); }

/* ============================================
   Detail Page
   ============================================ */
.detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.detail-actions { display: flex; gap: 0.5rem; }

.detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.detail-list {
    display: grid;
    gap: 0;
}

.detail-row {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-light);
    align-items: baseline;
}

.detail-row:last-child { border-bottom: none; }

.detail-row dt {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.detail-row dd {
    font-size: 0.875rem;
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
    display: flex;
    gap: 0.375rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.page-link {
    padding: 0.4rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition);
}

.page-link:hover { border-color: var(--primary); color: var(--primary); }

.page-link.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    margin: 0 1.5rem 1rem;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success { background: var(--success-light); color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }

/* ============================================
   Login Page
   ============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f766e 100%);
    padding: 1rem;
}

.login-container { width: 100%; max-width: 420px; }

.login-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    animation: fadeUp 0.5s ease;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px; height: 64px;
    background: var(--primary-light);
    border-radius: 16px;
    color: var(--primary);
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.login-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.tab-btn {
    flex: 1;
    padding: 0.6rem;
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: var(--font);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
}

.tab-btn.active {
    background: var(--primary);
    color: #fff;
}

.login-form .form-group { margin-bottom: 1rem; }
.login-form .btn { margin-top: 0.5rem; }

/* ============================================
   Guide
   ============================================ */
.guide-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.guide-list li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.guide-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* ============================================
   Responsive & Utilities
   ============================================ */
@media (min-width: 769px) {
    .show-on-mobile { display: none !important; }
}

@media (max-width: 768px) {
    .hide-on-mobile { display: none !important; }
    
    /* Touch Target Optimization (Min 44px) */
    .btn {
        padding: 0.65rem 1.25rem;
        min-height: 44px;
        font-size: 0.875rem;
    }
    
    .btn-sm {
        min-height: 38px;
        padding: 0.5rem 0.85rem;
    }
    
    .form-control {
        min-height: 44px;
        font-size: 0.9375rem;
    }
    
    .nav-item {
        min-height: 48px;
        font-size: 0.9375rem;
    }
    
    /* Layout and Sidebar */
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-close { display: block; }
    .hamburger { display: block; }

    .main-content {
        margin-left: 0;
    }

    .overlay.show { display: block; }

    .content-area { padding: 0.85rem; }

    .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
    .charts-grid { grid-template-columns: 1fr; gap: 1rem; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid .col-2 { grid-column: 1; }
    .form-row-half { grid-template-columns: 1fr; }

    /* Collapsible Filters on Mobile */
    .filter-form-wrapper {
        display: none;
        margin-top: 0.75rem;
        border-top: 1px solid var(--border-light);
        padding-top: 0.75rem;
    }
    
    .filter-form-wrapper.show {
        display: block !important;
    }
    
    .filter-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    
    .filter-row .form-control {
        width: 100%;
        min-width: auto;
    }
    
    .filter-row .btn {
        width: 100%;
        justify-content: center;
    }

    .detail-row { grid-template-columns: 1fr; gap: 0.25rem; }
    .action-bar { flex-direction: column; gap: 0.75rem; align-items: flex-start; }

    .login-card { padding: 1.5rem; }
    
    /* Mobile Card-Based Logs List */
    .mobile-logs-list {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        margin-top: 0.5rem;
    }
    
    .mobile-log-card {
        background: var(--surface);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        padding: 1rem;
        cursor: pointer;
        transition: transform 0.15s ease, box-shadow 0.15s ease;
        display: flex;
        flex-direction: column;
        gap: 0.65rem;
    }
    
    .mobile-log-card:active {
        transform: scale(0.98);
        box-shadow: none;
        background: var(--primary-50);
    }
    
    .mobile-log-card .card-header-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .mobile-log-card .log-date {
        font-size: 0.75rem;
        color: var(--text-secondary);
        font-weight: 500;
    }
    
    .mobile-log-card .equipment-title {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text);
        margin: 0;
    }
    
    .mobile-log-card .log-details-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
        background: var(--bg);
        padding: 0.65rem;
        border-radius: var(--radius-sm);
        font-size: 0.75rem;
    }
    
    .mobile-log-card .log-detail-item {
        display: flex;
        flex-direction: column;
        gap: 0.15rem;
    }
    
    .mobile-log-card .log-detail-item .label {
        color: var(--text-secondary);
        font-size: 0.7rem;
    }
    
    .mobile-log-card .log-detail-item .value {
        font-weight: 600;
        color: var(--text);
    }
    
    .mobile-log-card .card-footer-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-top: 0.25rem;
        border-top: 1px dashed var(--border);
        padding-top: 0.5rem;
        font-size: 0.75rem;
    }
    
    .mobile-log-card .creator-info {
        color: var(--text-secondary);
        display: flex;
        align-items: center;
        gap: 0.35rem;
    }
    
    .mobile-log-card .detail-link {
        font-weight: 600;
        color: var(--primary);
        display: flex;
        align-items: center;
        gap: 0.25rem;
    }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .gallery { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); }
}

/* Floating Action Button (FAB) for mobile viewports */
.mobile-fab {
    position: fixed;
    bottom: 1.25rem;
    right: 1.25rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.4);
    z-index: 99;
    border: none;
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease;
    text-decoration: none;
}

.mobile-fab:active {
    transform: scale(0.93);
    background: var(--primary-hover);
}

.mobile-fab svg {
    color: #fff;
}