/* ===== CSS RESET & BASE STYLES ===== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --color-primary: #007AFF;
    --color-primary-dark: #0051D5;
    --color-secondary: #5856D6;
    --color-success: #34C759;
    --color-warning: #FF9500;
    --color-error: #FF3B30;

    --color-text-primary: #000000;
    --color-text-secondary: #8E8E93;
    --color-text-tertiary: #AEAEB2;
    --color-background: #FFFFFF;
    --color-background-secondary: #F2F2F7;
    --color-background-tertiary: #E5E5EA;
    --color-border: #D1D1D6;

    /* Spacing (8px base) */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-background-secondary);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* ===== ACCESSIBILITY ===== */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    z-index: 10000;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 10px;
    left: 10px;
    outline: 3px solid var(--color-primary-dark);
    outline-offset: 2px;
}

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

*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

button:focus-visible,
a:focus-visible {
    outline-offset: 4px;
}

input[type="checkbox"]:focus-visible,
input[type="range"]:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.2);
}

/* ===== UTILITY CLASSES ===== */

.hidden {
    display: none !important;
}

/* ===== CONTENT WRAPPER ===== */

.content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ===== HEADER ===== */

.app-header {
    background: var(--color-background);
    padding: var(--spacing-md) var(--spacing-md);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.app-title {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--color-primary);
}

.app-title-link {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
}

.app-title-link:hover {
    opacity: 0.8;
}

.app-title-link:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.app-title-secondary {
    color: var(--color-text-primary);
    font-weight: 700;
}

/* ===== HERO SECTION ===== */

.hero-section {
    background: linear-gradient(180deg, #007AFF 0%, #0051D5 100%);
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md) var(--spacing-md);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-description {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: var(--spacing-lg);
}

/* ===== LOCATION CONTROLS ===== */

.location-controls {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.input-divider {
    text-align: center;
    margin: var(--spacing-md) 0;
    color: white;
    opacity: 0.8;
    font-size: var(--font-size-lg);
}

.postal-input-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.postal-input {
    flex: 1;
    min-width: 200px;
    padding: var(--spacing-md) var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 26px;
    background: white;
    color: var(--color-text-primary);
    transition: all var(--transition-base);
    height: 52px;
    box-sizing: border-box;
}

.postal-input:hover {
    border-color: rgba(255, 255, 255, 0.5);
}

.postal-input:focus {
    border-color: white;
    background: white;
    outline: none;
}

.postal-input::placeholder {
    color: var(--color-text-secondary);
}

/* ===== BUTTONS ===== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    font-family: var(--font-family);
    border: 2px solid transparent;
    border-radius: 26px;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
    position: relative;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn:active {
    transform: scale(0.97);
    transition: transform 0.1s ease;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn:disabled::before {
    display: none;
}

.btn-primary {
    background: transparent;
    color: white;
    border: 2px solid white;
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md);
    height: 52px;
    box-sizing: border-box;
}

.btn-primary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: var(--spacing-md) var(--spacing-md);
    height: 52px;
    box-sizing: border-box;
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
}

.btn-icon {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    padding: var(--spacing-md) var(--spacing-md);
    height: 52px;
    box-sizing: border-box;
}

.btn-icon:hover:not(:disabled) {
    background: rgba(0, 122, 255, 0.1);
    border-color: var(--color-primary-dark);
}

.btn-text {
    background: transparent;
    color: var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
}

.btn-text:hover:not(:disabled) {
    background: rgba(0, 122, 255, 0.1);
}

.btn-search-icon {
    padding: var(--spacing-md) var(--spacing-md);
    min-width: 48px;
}

/* ===== LOADING STATE ===== */

.loading-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: white;
}

.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto var(--spacing-md);
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== ERROR STATE ===== */

.error-state {
    background: rgba(255, 59, 48, 0.15);
    border: 1px solid rgba(255, 59, 48, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-md);
    text-align: center;
    color: white;
}

/* ===== RESULTS BAR ===== */

.results-bar {
    max-width: 600px;
    margin: var(--spacing-md) auto;
    padding: 0 var(--spacing-lg);
}

.results-bar.hidden {
    display: none;
}

.results-bar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.filter-pills {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.dropdown-wrapper {
    position: relative;
}

.filter-pill {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: 500;
    font-family: var(--font-family);
    border: none;
    border-radius: 16px;
    background: var(--color-primary);
    color: white;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.filter-pill svg {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    fill: white;
}

.filter-pill:hover {
    background: var(--color-primary-dark);
}

.filter-pill:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--spacing-xs));
    left: 0;
    min-width: 120px;
    background: white;
    border: 1.5px solid var(--color-primary);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    z-index: 1000;
    display: none;
    overflow: hidden;
}

.dropdown-menu.active {
    display: block;
}

.dropdown-item {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: background-color var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dropdown-item:hover {
    background-color: var(--color-background-secondary);
}

.dropdown-item:active {
    background-color: var(--color-primary);
    color: white;
}

.dropdown-item.selected {
    background-color: rgba(0, 122, 255, 0.1);
    color: var(--color-primary);
    font-weight: 600;
}

.dropdown-item.selected::after {
    content: '✓';
    font-size: var(--font-size-lg);
    color: var(--color-primary);
}

.results-count {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
    flex: 1;
    min-width: 0;
}

/* ===== ADVANCED FILTERS ===== */

.advanced-filters {
    background: var(--color-background-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-lg) var(--spacing-md);
}

.filter-group {
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
}

.filter-group input[type="range"] {
    width: 100%;
    margin: var(--spacing-sm) 0;
}

.filter-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.radio-group {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    cursor: pointer;
}

.radio-label input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

/* ===== RESULTS CONTAINER ===== */

.results-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 0 var(--spacing-lg);
}

.carpark-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    transform: translateZ(0);
    will-change: contents;
}

/* ===== CAR PARK CARD ===== */

.carpark-card {
    background: var(--color-background);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    border: 2px solid var(--color-border);
    position: relative;
    overflow: hidden;
    contain: layout style paint;
    will-change: transform, box-shadow;
}

.carpark-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.05) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.carpark-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.carpark-card:hover::before {
    opacity: 1;
}

.carpark-card:active {
    transform: translateY(-2px) scale(0.99);
    transition: all 0.1s ease;
}

@media (hover: none) and (pointer: coarse) {
    .carpark-card:active {
        background: var(--color-background-secondary);
        transform: scale(0.98);
    }
}

.carpark-header {
    margin-bottom: var(--spacing-sm);
}

.carpark-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0;
}

.carpark-address {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.4;
    margin-top: 4px;
}

.carpark-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat:nth-child(odd) {
    align-items: flex-start;
}

.stat:nth-child(even) {
    align-items: flex-end;
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.stat-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.stat-value.available {
    color: var(--color-success);
}

.stat-value.low {
    color: var(--color-warning);
}

.stat-value.full {
    color: var(--color-error);
}

.carpark-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-background-secondary);
    min-height: 24px;
}

.info-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-background-secondary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-weight: 500;
}

.info-badge.cheapest {
    background: rgba(52, 199, 89, 0.15);
    color: var(--color-success);
    font-weight: 600;
    border: 1px solid rgba(52, 199, 89, 0.3);
}

.info-badge.nearest {
    background: rgba(0, 122, 255, 0.15);
    color: var(--color-primary);
    font-weight: 600;
    border: 1px solid rgba(0, 122, 255, 0.3);
}

.navigate-btn {
    width: 100%;
    margin-top: var(--spacing-sm);
    background: var(--color-primary);
    color: white;
}

.navigate-btn:hover:not(:disabled) {
    background: var(--color-primary-dark);
}

.carpark-card.cheapest-carpark {
    border-color: var(--color-success);
    border-width: 2px;
    border-radius: var(--radius-lg);
    background: linear-gradient(to bottom, rgba(52, 199, 89, 0.03), var(--color-background));
}

.carpark-card.cheapest-carpark::before {
    background: linear-gradient(135deg, rgba(52, 199, 89, 0.08) 0%, transparent 100%);
    opacity: 1;
}

.carpark-card.cheapest-carpark:hover {
    border-color: var(--color-success);
    box-shadow: 0 8px 24px rgba(52, 199, 89, 0.2);
}

.carpark-card.nearest-carpark {
    border-color: var(--color-primary);
    border-width: 2px;
    border-radius: var(--radius-lg);
    background: linear-gradient(to bottom, rgba(0, 122, 255, 0.03), var(--color-background));
}

.carpark-card.nearest-carpark::before {
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.08) 0%, transparent 100%);
    opacity: 1;
}

.carpark-card.nearest-carpark:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 122, 255, 0.2);
}

.carpark-card.cheapest-carpark.nearest-carpark {
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    background: linear-gradient(to bottom, rgba(52, 199, 89, 0.03), rgba(0, 122, 255, 0.03), var(--color-background));
}

.carpark-card.cheapest-carpark.nearest-carpark::before {
    background: linear-gradient(135deg, rgba(52, 199, 89, 0.08) 0%, rgba(0, 122, 255, 0.08) 50%, transparent 100%);
    opacity: 1;
}

.carpark-card.cheapest-carpark.nearest-carpark:hover {
    box-shadow: 0 8px 24px rgba(52, 199, 89, 0.15), 0 8px 24px rgba(0, 122, 255, 0.15);
}

/* ===== EMPTY STATE ===== */

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-text-secondary);
}

.empty-state svg {
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: var(--font-size-base);
}

/* ===== FOOTER ===== */

.app-footer {
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    margin-top: auto;
}

.footer-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.footer-text a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-text a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.footer-disclaimer {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 576px) {
    :root {
        --spacing-2xl: 32px;
        --font-size-3xl: 28px;
        --font-size-2xl: 22px;
    }

    .app-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .app-title {
        font-size: var(--font-size-4xl);
    }

    .hero-section {
        padding: var(--spacing-md) 0 0 0;
    }

    .hero-description {
        font-size: var(--font-size-base);
        padding: 0 var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .location-controls {
        padding: var(--spacing-md);
        margin: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
    }

    .results-bar {
        padding: 0 var(--spacing-md);
    }

    .results-container {
        padding: var(--spacing-sm) var(--spacing-md) var(--spacing-lg);
    }

    .carpark-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .postal-input-group {
        flex-direction: column;
    }

    .postal-input {
        min-width: 100%;
    }

    .btn-secondary {
        width: 100%;
    }

    .btn-search-icon {
        width: 100%;
    }

    .input-divider {
        font-size: var(--font-size-base);
    }

    .carpark-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .carpark-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs) var(--spacing-sm);
    }

    .stat-value {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 768px) {
    .carpark-grid {
        grid-template-columns: 1fr;
    }

    .hero-description {
        font-size: var(--font-size-base);
    }

    .results-bar {
        padding: 0 var(--spacing-md);
        margin: var(--spacing-sm) auto;
    }

    .results-bar-container {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .results-count {
        font-size: var(--font-size-sm);
        width: 100%;
    }

    .filter-pills {
        gap: var(--spacing-xs);
    }

    .filter-pill {
        padding: 4px var(--spacing-sm);
        font-size: var(--font-size-sm);
        background: var(--color-primary);
        color: white;
        border: none;
    }

    .filter-pill svg {
        width: 10px;
        height: 10px;
        fill: white;
    }

    .results-container {
        padding: var(--spacing-sm) var(--spacing-md) var(--spacing-lg) !important;
    }

    .carpark-card {
        padding: var(--spacing-md) var(--spacing-md) !important;
    }

    .btn-icon {
        width: 100%;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .app-title {
        font-size: 48px;
    }
}

@media (min-width: 1200px) {
    .results-container {
        padding: 0 0 var(--spacing-lg);
    }
}

@media (max-height: 600px) and (orientation: landscape) {
    .app-header {
        padding: var(--spacing-xs) var(--spacing-md);
    }

    .app-title {
        font-size: var(--font-size-2xl);
    }

    .hero-section {
        padding: var(--spacing-sm) 0 0 0;
    }

    .hero-description {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-sm);
        padding: 0 var(--spacing-md);
    }

    .location-controls {
        padding: var(--spacing-sm);
        margin: 0 var(--spacing-md) var(--spacing-sm) var(--spacing-md);
    }
}

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== LOADING SKELETONS ===== */

.skeleton-card {
    background: var(--color-background);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    animation: fadeIn var(--transition-base) ease-out;
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-background-secondary) 0%,
        var(--color-background-tertiary) 50%,
        var(--color-background-secondary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

.skeleton-header {
    margin-bottom: var(--spacing-md);
}

.skeleton-title {
    height: 24px;
    width: 70%;
    margin-bottom: var(--spacing-sm);
}

.skeleton-subtitle {
    height: 16px;
    width: 90%;
}

.skeleton-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.skeleton-stat {
    height: 60px;
    border-radius: var(--radius-sm);
}

.skeleton-badges {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.skeleton-badge {
    height: 24px;
    width: 80px;
    border-radius: var(--radius-full);
}

.skeleton-button {
    height: 44px;
    width: 100%;
    border-radius: var(--radius-md);
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ===== ANIMATIONS ===== */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); max-height: 0; }
    to { opacity: 1; transform: translateY(0); max-height: 500px; }
}

@keyframes slideUp {
    from { opacity: 1; transform: translateY(0); max-height: 500px; }
    to { opacity: 0; transform: translateY(-10px); max-height: 0; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes ripple {
    to { transform: scale(4); opacity: 0; }
}

.carpark-card {
    animation: fadeIn var(--transition-base) ease-out;
}

.carpark-card:nth-child(1) { animation-delay: 0ms; }
.carpark-card:nth-child(2) { animation-delay: 50ms; }
.carpark-card:nth-child(3) { animation-delay: 100ms; }
.carpark-card:nth-child(4) { animation-delay: 150ms; }
.carpark-card:nth-child(5) { animation-delay: 200ms; }
.carpark-card:nth-child(6) { animation-delay: 250ms; }
.carpark-card:nth-child(n+7) { animation-delay: 300ms; }

.advanced-filters {
    animation: slideDown 0.3s ease-out;
    overflow: hidden;
}

.advanced-filters.hiding {
    animation: slideUp 0.3s ease-out;
}

.loading-state {
    animation: scaleIn 0.3s ease-out;
}

.error-state {
    animation: scaleIn 0.3s ease-out;
}

/* ===== TOAST NOTIFICATIONS ===== */

.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--color-text-primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: var(--font-size-base);
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    min-width: 280px;
    max-width: 90vw;
    text-align: center;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-success { background: var(--color-success); }
.toast-error { background: var(--color-error); }
.toast-info { background: var(--color-primary); }

/* ===== UTILITIES ===== */

.spinner-small {
    animation: spin 0.8s linear infinite;
    display: inline-block;
    vertical-align: middle;
}

.spinner-small circle,
.spinner-small path {
    transform-origin: center;
}

.ripple-effect {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple 0.6s ease-out;
    pointer-events: none;
}

.fade-in { animation: fadeIn 0.3s ease-out; }
.scale-in { animation: scaleIn 0.3s ease-out; }
.slide-down { animation: slideDown 0.3s ease-out; }

/* ===== REDUCED MOTION ===== */

@media (prefers-reduced-motion: reduce) {
    .spinner {
        animation: none;
        animation: pulseOpacity 2s ease-in-out infinite;
    }

    @keyframes pulseOpacity {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.5; }
    }

    .carpark-card { animation: none; }
    .btn:active { transform: none; }
    .carpark-card:hover { transform: none; }
    .btn-primary:hover:not(:disabled) { transform: none; }
    .ripple-effect { display: none; }
}

/* ===== PRINT ===== */

@media print {
    .hero-section,
    .results-bar,
    .app-footer,
    .skip-link,
    .toast {
        display: none;
    }

    .carpark-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--color-border);
    }
}