/* ==========================================================================
   CustomAlarm Activity Hub - Design System & Styling
   Crafted with Modern Vanilla CSS, Glassmorphism, & Dynamic Color System
   ========================================================================== */

/* Root Design Tokens */
:root {
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Theme: Dark (Default) */
    --bg-main: #0b0f19;
    --bg-surface: rgba(18, 24, 38, 0.75);
    --bg-surface-elevated: rgba(30, 41, 59, 0.7);
    --bg-input: rgba(15, 23, 42, 0.85);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(16, 185, 129, 0.25);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --color-primary: #10b981;
    --color-primary-dark: #059669;
    --color-primary-light: #34d399;
    --color-accent: #f59e0b;
    --color-secondary: #06b6d4;
    --color-danger: #ef4444;
    --color-info: #6366f1;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 25px rgba(16, 185, 129, 0.25);

    --transition-fast: 0.15s ease;
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Overrides */
[data-theme="light"] {
    --bg-main: #f1f5f9;
    --bg-surface: rgba(255, 255, 255, 0.85);
    --bg-surface-elevated: rgba(248, 250, 252, 0.95);
    --bg-input: #ffffff;

    --border-color: rgba(0, 0, 0, 0.08);
    --border-glow: rgba(16, 185, 129, 0.35);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* Base Styles & Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Ambient Background Light Blobs */
.ambient-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
    transition: opacity var(--transition-slow);
}

.glow-1 {
    top: -10%;
    left: 15%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.4) 0%, rgba(5, 150, 105, 0) 70%);
}

.glow-2 {
    top: 40%;
    right: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.35) 0%, rgba(14, 116, 144, 0) 70%);
}

.glow-3 {
    bottom: -10%;
    left: 30%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, rgba(67, 56, 202, 0) 70%);
}

/* Glassmorphism Card Utility */
.glass-card {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.app-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ================= NAVBAR ================= */
.navbar {
    position: sticky;
    top: 14px;
    margin: 0 auto;
    width: calc(100% - 32px);
    max-width: 1240px;
    z-index: 100;
    padding: 12px 20px;
    border-radius: var(--radius-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 22px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.brand-info {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.badge-hub {
    font-size: 0.65rem;
    background: var(--color-primary);
    color: #ffffff;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.btn-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* User Dropdown */
.user-menu-wrapper {
    position: relative;
}

.user-profile-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
    border-radius: var(--radius-full);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-profile-btn:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.user-avatar-sm {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.user-name-sm {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    max-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    padding: 8px;
    z-index: 150;
    animation: fadeInDown 0.2s ease;
}

.dropdown-header {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 6px;
}

.dropdown-user-email {
    font-size: 0.75rem;
    color: var(--text-muted);
    word-break: break-all;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: rgba(239, 68, 68, 0.12);
    color: var(--color-danger);
}

/* ================= MAIN CONTENT ================= */
.main-content {
    flex: 1;
    width: 100%;
    max-width: 1240px;
    margin: 24px auto 40px;
    padding: 0 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

.btn-secondary {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--bg-surface-elevated);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-block {
    width: 100%;
}

/* ================= GUEST HERO BANNER ================= */
.guest-hero {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 36px;
    padding: 48px;
    align-items: center;
    margin-top: 20px;
}

.pill-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary);
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.guest-hero h1 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.guest-hero p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.6;
}

.hero-cta-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.visual-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-lg);
}

.visual-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.visual-preview {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.preview-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
}

.preview-item.done i {
    color: var(--color-primary);
    font-size: 20px;
}

.preview-item.progress i {
    color: var(--color-accent);
    font-size: 20px;
}

.preview-item div {
    display: flex;
    flex-direction: column;
}

.preview-item strong {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.preview-item span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ================= AUTH MODAL ================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    animation: fadeIn 0.25s ease;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: 36px 32px;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: scaleUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-close-modal {
    position: absolute;
    top: 18px;
    right: 18px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 22px;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.btn-close-modal:hover {
    color: var(--text-primary);
}

.auth-header {
    text-align: center;
    margin-bottom: 24px;
}

.auth-logo {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #ffffff;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    box-shadow: var(--shadow-glow);
}

.auth-header h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.auth-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.demo-login-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(16, 185, 129, 0.1);
    border: 1px dashed rgba(16, 185, 129, 0.4);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    margin-bottom: 20px;
}

.demo-info {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary-light);
}

.btn-demo {
    background: var(--color-primary);
    color: #ffffff;
    border: none;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.btn-demo:hover {
    opacity: 0.9;
}

.auth-alert {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 16px;
}

.auth-alert.error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #f87171;
}

.auth-alert.success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: var(--color-primary-light);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 1.1rem;
    pointer-events: none;
}

.input-wrapper input {
    width: 100%;
    padding: 11px 14px 11px 40px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-fast);
}

.input-wrapper input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.btn-toggle-pwd {
    position: absolute;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
    margin-left: 4px;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* ================= AUTHENTICATED DASHBOARD ================= */
.welcome-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    margin-bottom: 24px;
}

.user-greeting {
    display: flex;
    align-items: center;
    gap: 16px;
}

.avatar-circle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #ffffff;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.user-greeting h2 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.user-greeting p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.metric-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
}

.metric-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.metric-icon.total {
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-info);
}

.metric-icon.completed {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-primary);
}

.metric-icon.in-progress {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-accent);
}

.metric-icon.observation {
    background: rgba(6, 182, 212, 0.15);
    color: var(--color-secondary);
}

.metric-icon.photos {
    background: rgba(236, 72, 153, 0.15);
    color: #ec4899;
}

.metric-info {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.metric-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.metric-value {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.progress-bar-container {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    margin-top: 6px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

/* Toolbar */
.toolbar {
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.toolbar-search {
    position: relative;
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 260px;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    font-size: 1.1rem;
    pointer-events: none;
}

.toolbar-search input {
    width: 100%;
    padding: 9px 36px 9px 38px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.88rem;
    outline: none;
    transition: all var(--transition-fast);
}

.toolbar-search input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.btn-clear-search {
    position: absolute;
    right: 10px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
}

.toolbar-filters {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

.filter-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.filter-group select {
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    outline: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-group select:focus {
    border-color: var(--color-primary);
}

.view-toggle {
    display: flex;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 2px;
}

.btn-toggle {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-toggle.active {
    background: var(--color-primary);
    color: #ffffff;
}

/* Feed Header */
.feed-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding: 0 4px;
}

.feed-header h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ================= ACTIVITIES GRID & CARDS ================= */
.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.activity-card {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.activity-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(16, 185, 129, 0.35);
}

.activity-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.activity-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
}

.activity-task-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    margin-top: 4px;
    border: 1px solid var(--border-color);
}

/* Badges */
.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.badge-status.completed {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-primary);
    border: 1px solid rgba(16, 185, 129, 0.35);
}

.badge-status.progress {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-accent);
    border: 1px solid rgba(245, 158, 11, 0.35);
}

.badge-status.observation {
    background: rgba(6, 182, 212, 0.15);
    color: var(--color-secondary);
    border: 1px solid rgba(6, 182, 212, 0.35);
}

/* Time info */
.activity-time-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.8rem;
    padding: 8px 12px;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.time-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.time-row.completed-time {
    color: var(--color-primary);
    font-weight: 700;
}

.time-row.recorded-time {
    color: var(--text-muted);
}

/* Notes */
.activity-notes {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.45;
    background: var(--bg-surface-elevated);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
}

/* Photo Gallery Grid in Card */
.activity-photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
    gap: 8px;
    margin-top: 4px;
}

.photo-thumb-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
}

.photo-thumb-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.photo-thumb-wrapper:hover img {
    transform: scale(1.08);
}

.photo-overlay-icon {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.2rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.photo-thumb-wrapper:hover .photo-overlay-icon {
    opacity: 1;
}

/* ================= TIMELINE VIEW ================= */
.activities-timeline {
    position: relative;
    padding-left: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.activities-timeline::before {
    content: '';
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: 11px;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary), transparent);
}

.timeline-item {
    position: relative;
}

.timeline-dot {
    position: absolute;
    top: 20px;
    left: -32px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-main);
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 12px;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    margin: 20px 0;
}

.empty-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.empty-state h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.empty-state p {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 400px;
    margin: 0 auto;
}

/* ================= LIGHTBOX MODAL ================= */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(12px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #ffffff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

.lightbox-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1100px;
    padding: 0 20px;
}

.lightbox-nav-btn {
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: #ffffff;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox-nav-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

.lightbox-image-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 85%;
    max-height: 80vh;
}

.lightbox-image-wrapper img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: var(--radius-md);
    object-fit: contain;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

.lightbox-caption {
    margin-top: 14px;
    text-align: center;
    color: #ffffff;
}

#lightboxCounter {
    font-size: 0.8rem;
    color: var(--color-primary-light);
    font-weight: 700;
}

#lightboxTitle {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-top: 2px;
}

#lightboxNotes {
    font-size: 0.85rem;
    color: #cbd5e1;
    margin-top: 4px;
    max-width: 600px;
}

/* ================= FOOTER ================= */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 24px 16px;
    text-align: center;
    margin-top: auto;
}

.footer-content p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* Utility Classes & Animations */
.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.94);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Breakpoints */
@media (max-width: 900px) {
    .guest-hero {
        grid-template-columns: 1fr;
        padding: 32px 24px;
    }

    .guest-hero h1 {
        font-size: 1.85rem;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-filters {
        justify-content: space-between;
    }
}

@media (max-width: 600px) {
    .navbar {
        width: 100%;
        top: 0;
        border-radius: 0;
        padding: 10px 14px;
    }

    .brand-subtitle {
        display: none;
    }

    .activities-grid {
        grid-template-columns: 1fr;
    }

    .metrics-grid {
        grid-template-columns: 1fr 1fr;
    }

    .welcome-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .lightbox-controls {
        padding: 0;
    }

    .lightbox-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }
}