/* ============================================
   SITE DIARY R2 - PROJECT PORTAL
   Refined Industrial Aesthetic
   ============================================ */

/* ---------- Font Import ---------- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ---------- CSS Variables ---------- */
:root {
    /* Brand Colors - Decmil Navy + Industrial Warmth */
    --navy-900: #0f1d35;
    --navy-800: #162850;
    --navy-700: #1f396c;
    --navy-600: #2a4a8a;
    --navy-500: #3660a8;

    /* Warm Accent - Safety/Industrial */
    --amber-500: #f59e0b;
    --amber-400: #fbbf24;
    --amber-300: #fcd34d;

    /* Cyan Accent - Decmil Secondary */
    --cyan-600: #0891b2;
    --cyan-500: #06b6d4;
    --cyan-400: #22d3ee;

    /* Neutral Palette - Concrete & Steel */
    --concrete-50: #fafaf9;
    --concrete-100: #f5f5f4;
    --concrete-200: #e7e5e4;
    --concrete-300: #d6d3d1;
    --concrete-400: #a8a29e;
    --concrete-500: #78716c;
    --concrete-600: #57534e;
    --concrete-700: #44403c;
    --concrete-800: #292524;
    --concrete-900: #1c1917;

    /* Semantic */
    --text-primary: #1c1917;
    --text-secondary: #57534e;
    --text-muted: #a8a29e;
    --text-inverse: #fafaf9;

    --surface-page: #f5f5f4;
    --surface-card: #ffffff;
    --surface-elevated: #ffffff;

    --border-subtle: rgba(0, 0, 0, 0.06);
    --border-medium: rgba(0, 0, 0, 0.1);
    --border-strong: rgba(0, 0, 0, 0.15);

    /* Shadows - Architectural depth */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.12), 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 40px rgba(245, 158, 11, 0.15);

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-base: 300ms;
    --duration-slow: 500ms;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.25rem;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------- Page Layout ---------- */
.landing-page {
    font-family: 'DM Sans', system-ui, sans-serif;
    background: var(--surface-page);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* Subtle grain texture overlay */
.landing-page::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 1000;
}

/* ---------- Header ---------- */
.landing-header {
    background: var(--surface-card);
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-4) var(--space-6);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.92);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.brand-logo {
    height: 2.25rem;
    width: auto;
    transition: transform var(--duration-base) var(--ease-out-expo);
}

.brand-logo:hover {
    transform: scale(1.02);
}

.brand-divider {
    width: 1px;
    height: 2rem;
    background: var(--border-medium);
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.brand-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--navy-700);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.brand-subtitle {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.project-count-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
    color: var(--text-inverse);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.project-count-badge i {
    color: var(--amber-400);
}

.nav-btn {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--concrete-100);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
}

.nav-btn:hover {
    background: var(--concrete-200);
    color: var(--text-primary);
}

/* ---------- Search Hero ---------- */
.search-hero {
    position: relative;
    padding: var(--space-8) var(--space-6);
    background: linear-gradient(165deg, var(--navy-900) 0%, var(--navy-700) 50%, var(--navy-600) 100%);
    overflow: hidden;
}

/* Architectural grid pattern */
.search-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

/* Warm glow accent */
.search-hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(245, 158, 11, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--text-inverse);
    margin: 0 0 var(--space-2);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero-title-accent {
    color: var(--amber-400);
}

.hero-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0 0 var(--space-5);
    font-weight: 400;
}

.search-container {
    max-width: 560px;
    margin: 0 auto;
}

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

.search-icon {
    position: absolute;
    left: var(--space-5);
    color: var(--text-muted);
    font-size: 1.125rem;
    pointer-events: none;
    transition: color var(--duration-fast) ease;
}

.search-input {
    width: 100%;
    padding: var(--space-5) var(--space-5) var(--space-5) var(--space-12);
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    background: var(--surface-card);
    box-shadow: var(--shadow-xl), 0 0 0 0 rgba(245, 158, 11, 0);
    transition: all var(--duration-base) var(--ease-out-expo);
}

.search-input:focus {
    outline: none;
    border-color: var(--amber-400);
    box-shadow: var(--shadow-xl), 0 0 0 4px rgba(245, 158, 11, 0.2);
}

.search-input:focus ~ .search-icon {
    color: var(--amber-500);
}

.search-input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.search-clear-btn {
    position: absolute;
    right: var(--space-4);
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--concrete-100);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--duration-fast) var(--ease-out-back);
}

.search-clear-btn.visible {
    opacity: 1;
    transform: scale(1);
}

.search-clear-btn:hover {
    background: var(--concrete-200);
    color: var(--text-primary);
}

.search-hint {
    margin-top: var(--space-3);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.search-hint kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.5rem;
    padding: 0.125rem 0.375rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ---------- Filter Section ---------- */
.filter-section {
    background: var(--surface-card);
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-4) var(--space-6);
    position: sticky;
    top: 60px;
    z-index: 90;
}

.filter-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.filter-pills {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    padding: var(--space-1) 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.filter-pills::-webkit-scrollbar {
    display: none;
}

.filter-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    border: 1.5px solid var(--border-medium);
    border-radius: var(--radius-lg);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--duration-fast) ease;
}

.filter-pill:hover {
    border-color: var(--navy-600);
    color: var(--navy-700);
    background: rgba(31, 57, 108, 0.04);
}

.filter-pill.active {
    background: var(--navy-700);
    color: var(--text-inverse);
    border-color: var(--navy-700);
}

.pill-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.375rem;
    height: 1.375rem;
    padding: 0 0.375rem;
    background: rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

.filter-pill.active .pill-count {
    background: rgba(255, 255, 255, 0.2);
}

.filter-toggles {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Custom Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    user-select: none;
}

.toggle-switch input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.toggle-slider {
    position: relative;
    width: 2.75rem;
    height: 1.5rem;
    background: var(--concrete-300);
    border-radius: var(--radius-lg);
    transition: background var(--duration-base) ease;
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 1.125rem;
    height: 1.125rem;
    background: var(--surface-card);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    transition: transform var(--duration-base) var(--ease-out-back);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--navy-600);
}

.toggle-switch input:checked + .toggle-slider::after {
    transform: translateX(1.25rem);
}

.toggle-switch input:focus-visible + .toggle-slider {
    outline: 2px solid var(--amber-400);
    outline-offset: 2px;
}

.toggle-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ---------- Projects Section ---------- */
.projects-section {
    flex: 1;
    padding: var(--space-6) var(--space-6);
}

.projects-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* ---------- State Columns Layout ---------- */
.state-columns {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.state-column {
    flex: 1;
    min-width: 0;
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
}

/* State Column Header */
.state-column-header {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border-subtle);
    background: var(--concrete-50);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.state-indicator {
    width: 3px;
    height: 1.25rem;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

/* State-specific colors */
.state-column[data-state="WA"] .state-indicator {
    background: var(--navy-700);
}

.state-column[data-state="QLD"] .state-indicator {
    background: var(--cyan-500);
}

.state-column[data-state="SA"] .state-indicator {
    background: var(--amber-500);
}

.state-column[data-state="VIC"] .state-indicator {
    background: #8b5cf6;
}

.state-column[data-state="NSW"] .state-indicator {
    background: #ef4444;
}

.state-column[data-state="NT"] .state-indicator {
    background: #f97316;
}

.state-column-title {
    font-family: 'Outfit', sans-serif;
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
}

.state-column-count {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--concrete-100);
    padding: 0.125rem var(--space-2);
    border-radius: var(--radius-sm);
}

/* Projects List within Column */
.projects-list {
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-height: 600px;
    overflow-y: auto;
}

/* Custom scrollbar for projects list */
.projects-list::-webkit-scrollbar {
    width: 6px;
}

.projects-list::-webkit-scrollbar-track {
    background: var(--concrete-100);
    border-radius: 3px;
}

.projects-list::-webkit-scrollbar-thumb {
    background: var(--concrete-300);
    border-radius: 3px;
}

.projects-list::-webkit-scrollbar-thumb:hover {
    background: var(--concrete-400);
}

/* ---------- Project Card ---------- */
.project-card {
    position: relative;
    background: var(--concrete-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    padding: var(--space-2) var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: all var(--duration-fast) ease;
}

.project-card:hover {
    background: var(--surface-card);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.project-card:hover .project-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Inactive card styling */
.project-card.project-inactive {
    background: var(--concrete-200);
    border-color: var(--concrete-300);
    border-style: dashed;
}

.project-card.project-inactive:hover {
    background: var(--concrete-100);
    border-color: var(--concrete-400);
    box-shadow: none;
    transform: none;
}

.project-card.project-inactive .project-arrow {
    display: none;
}

/* Project Number */
.project-number {
    font-family: 'Outfit', sans-serif;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--navy-700);
    background: var(--surface-card);
    padding: 0.25rem var(--space-2);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    white-space: nowrap;
    flex-shrink: 0;
}

.project-card.project-inactive .project-number {
    color: var(--concrete-500);
    background: var(--concrete-300);
    border-color: var(--concrete-400);
}

/* State-specific number colors */
.state-column[data-state="WA"] .project-number {
    color: var(--navy-700);
}

.state-column[data-state="QLD"] .project-number {
    color: var(--cyan-600);
}

.state-column[data-state="SA"] .project-number {
    color: var(--amber-500);
}

/* Project Info */
.project-info {
    flex: 1;
    min-width: 0;
}

.project-name {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-card.project-inactive .project-name {
    color: var(--concrete-500);
}

.project-status {
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin-top: 0.125rem;
}

/* Project Arrow */
.project-arrow {
    color: var(--text-muted);
    font-size: 0.75rem;
    opacity: 0;
    transform: translateX(-8px);
    transition: all var(--duration-fast) ease;
    flex-shrink: 0;
}

.project-card:hover .project-arrow {
    color: var(--navy-700);
}

.state-column[data-state="QLD"] .project-card:hover .project-arrow {
    color: var(--cyan-600);
}

/* ---------- No Results ---------- */
.no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16) var(--space-6);
    text-align: center;
}

.no-results-icon {
    width: 5rem;
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--concrete-100);
    border-radius: 50%;
    margin-bottom: var(--space-6);
}

.no-results-icon i {
    font-size: 2rem;
    color: var(--concrete-400);
}

.no-results h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-2);
}

.no-results p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ---------- Footer ---------- */
.landing-footer {
    background: var(--surface-card);
    border-top: 1px solid var(--border-subtle);
    padding: var(--space-5) var(--space-6);
    margin-top: auto;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

.footer-copyright {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.footer-brand-dot {
    width: 4px;
    height: 4px;
    background: var(--amber-400);
    border-radius: 50%;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8125rem;
    transition: color var(--duration-fast) ease;
}

.footer-link:hover {
    color: var(--navy-700);
    text-decoration: none;
}

/* ---------- Privacy Page ---------- */
.privacy-section {
    flex: 1;
    padding: var(--space-10) var(--space-6);
    background: var(--surface-page);
}

.privacy-container {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-content {
    background: var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-subtle);
    padding: var(--space-10);
}

.privacy-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border-subtle);
}

.privacy-title {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--navy-700);
    margin: 0 0 var(--space-2);
}

.privacy-updated {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.policy-section {
    margin-bottom: var(--space-6);
}

.policy-section h2 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-3);
}

.policy-section p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0 0 var(--space-3);
}

.policy-section p:last-child {
    margin-bottom: 0;
}

.policy-section ul {
    margin: var(--space-3) 0;
    padding-left: var(--space-6);
}

.policy-section li {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.policy-footer {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-subtle);
}

.policy-footer p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
    text-align: center;
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--navy-700);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    padding: var(--space-2) var(--space-4);
    background: var(--concrete-100);
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) ease;
}

.back-link:hover {
    background: var(--concrete-200);
    color: var(--navy-700);
    text-decoration: none;
}

.back-link i {
    font-size: 0.75rem;
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

.fade-in-up {
    animation: fadeInUp var(--duration-slow) var(--ease-out-expo) forwards;
}

.project-card {
    opacity: 0;
    animation: fadeInUp var(--duration-slow) var(--ease-out-expo) forwards;
}

.project-card:nth-child(1) { animation-delay: 0ms; }
.project-card:nth-child(2) { animation-delay: 50ms; }
.project-card:nth-child(3) { animation-delay: 100ms; }
.project-card:nth-child(4) { animation-delay: 150ms; }
.project-card:nth-child(5) { animation-delay: 200ms; }
.project-card:nth-child(6) { animation-delay: 250ms; }
.project-card:nth-child(7) { animation-delay: 300ms; }
.project-card:nth-child(8) { animation-delay: 350ms; }
.project-card:nth-child(9) { animation-delay: 400ms; }
.project-card:nth-child(10) { animation-delay: 450ms; }
.project-card:nth-child(n+11) { animation-delay: 500ms; }

/* ---------- Responsive ---------- */

/* Tablet */
@media (max-width: 992px) {
    .filter-section {
        top: 56px;
    }

    .search-hero {
        padding: var(--space-6) var(--space-6);
    }

    .state-columns {
        gap: var(--space-4);
    }

    .projects-list {
        max-height: 500px;
    }
}

/* Mobile Landscape */
@media (max-width: 768px) {
    .landing-header {
        padding: var(--space-3) var(--space-4);
    }

    .brand-divider {
        display: none;
    }

    .brand-subtitle {
        display: none;
    }

    .brand-title {
        font-size: 1.25rem;
    }

    .project-count-badge {
        display: none;
    }

    .search-hero {
        padding: var(--space-6) var(--space-4);
    }

    .search-hero::before {
        background-size: 40px 40px;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.875rem;
        margin-bottom: var(--space-4);
    }

    .search-hint {
        display: none;
    }

    .filter-section {
        top: 52px;
        padding: var(--space-3) var(--space-4);
    }

    .filter-container {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-3);
    }

    .filter-toggles {
        justify-content: flex-start;
    }

    .projects-section {
        padding: var(--space-6) var(--space-4);
    }

    .state-columns {
        flex-direction: column;
    }

    .state-column {
        width: 100%;
    }

    .projects-list {
        max-height: 400px;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-2);
        text-align: center;
    }
}

/* Mobile Portrait */
@media (max-width: 480px) {
    .brand-logo {
        height: 1.75rem;
    }

    .brand-title {
        font-size: 1.125rem;
    }

    .nav-btn {
        width: 2.25rem;
        height: 2.25rem;
    }

    .search-input {
        padding: var(--space-4) var(--space-4) var(--space-4) var(--space-10);
        font-size: 0.9375rem;
    }

    .search-icon {
        left: var(--space-4);
        font-size: 1rem;
    }

    .filter-pill {
        padding: var(--space-2) var(--space-3);
        font-size: 0.8125rem;
    }

    .project-number {
        font-size: 0.75rem;
    }

    .project-name {
        font-size: 0.75rem;
    }
}

/* ---------- Utilities ---------- */
.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus states for accessibility */
.project-link:focus-visible,
.filter-pill:focus-visible,
.nav-btn:focus-visible,
.search-clear-btn:focus-visible {
    outline: 2px solid var(--amber-400);
    outline-offset: 2px;
}

.search-input:focus-visible {
    outline: none;
}