:root {
    --bg-color: #0f172a; /* Slate 900 */
    --card-bg: #1e293b; /* Slate 800 */
    --text-main: #f8fafc; /* Slate 50 */
    --text-muted: #94a3b8; /* Slate 400 */
    --primary: #f97316; /* Orange 500 */
    --primary-hover: #ea580c;
    --star-color: #fbbf24;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 600;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

.btn-login {
    background: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.btn-login:hover {
    background: var(--primary-hover);
    color: white !important;
}

/* Hero Slider */
.hero-slider {
    height: 40vh;
    min-height: 300px;
    position: relative;
    overflow: hidden;
}

.slide {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.slide::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.2), var(--bg-color));
}

.slide-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 0 1rem;
}

.slide-content h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* Categories */
.categories-container {
    display: flex;
    gap: 1rem;
    padding: 2rem;
    overflow-x: auto;
    scrollbar-width: none;
}
.categories-container::-webkit-scrollbar { display: none; }

.category-chip {
    background: var(--card-bg);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.category-chip:hover, .category-chip.active {
    background: var(--primary);
    border-color: var(--primary);
}

/* Main Grid */
.restaurants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 2rem 4rem 2rem;
}

/* Cards */
.rest-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.rest-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.card-img-wrapper {
    height: 180px;
    overflow: hidden;
    position: relative;
}

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

.card-logo {
    position: absolute;
    bottom: -20px;
    left: 20px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 4px solid var(--card-bg);
    background: white;
    object-fit: cover;
}

.card-content {
    padding: 2rem 1.5rem 1.5rem 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.card-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.stars {
    color: var(--star-color);
    font-size: 0.9rem;
}

/* Modal (Slide-over) */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    display: flex;
    justify-content: flex-end;
}

.modal-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    height: 100%;
    background: var(--bg-color);
    box-shadow: -5px 0 25px rgba(0,0,0,0.5);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    overflow-y: auto;
    position: relative;
}

.modal-overlay:not(.hidden) .modal-content {
    transform: translateX(0);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-hero {
    height: 250px;
    width: 100%;
    object-fit: cover;
}

.modal-body-content {
    padding: 2rem;
}

.menu-section { margin-top: 2rem; }
.menu-item {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}
.menu-item-price {
    font-weight: bold;
    color: var(--primary);
}

.map-section { margin-top: 2rem; }
.map-container {
    width: 100%;
    height: 200px;
    background: #334155;
    border-radius: 12px;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}
.btn-maps {
    display: block;
    width: 100%;
    padding: 1rem;
    background: #2563eb;
    color: white;
    text-align: center;
    border-radius: 8px;
    text-decoration: none;
    margin-top: 1rem;
    font-weight: bold;
}

/* Footer */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem 1rem 2rem;
    margin-top: 2rem;
}
.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}
.footer-section {
    flex: 1;
    min-width: 300px;
}
.footer-section h3 {
    color: var(--primary);
    margin-bottom: 1.5rem;
}
.faq-list { list-style: none; }
.faq-list li { margin-bottom: 1rem; }
.faq-list p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    border-radius: 8px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    color: white;
}
.btn-primary {
    background: var(--primary);
    color: white;
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
}
.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .nav-links { display: none; }
}

/* ============================================================
   PWA: aviso de nueva versión, estado offline y fallback
   ------------------------------------------------------------
   Solo variables del proyecto. Ocultos por defecto (opacity:0).
   ============================================================ */
.pwa-update-banner,
.pwa-offline-indicator,
.pwa-data-fallback {
    color: var(--text-main);
}
.pwa-update-banner {
    position: fixed;
    top: 0.8rem;
    right: 1rem;
    z-index: 1200;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.9rem;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
}
.pwa-update-banner.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.pwa-update-action {
    background: var(--primary);
    color: #fff; /* único color fijo: contraste necesario sobre primary */
    border: none;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-weight: bold;
    cursor: pointer;
}
.pwa-update-action:hover {
    background: var(--primary-hover);
}
.pwa-offline-indicator {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    z-index: 1200;
    padding: 0.4rem 0.9rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-muted);
    font-size: 0.8rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
}
.pwa-offline-indicator.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.pwa-data-fallback {
    width: 100%;
    padding: 1.5rem;
    text-align: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-muted);
    font-size: 0.95rem;
}
.pwa-data-fallback p {
    margin: 0;
}
@media (prefers-reduced-motion: reduce) {
    .pwa-update-banner,
    .pwa-offline-indicator {
        transition: none;
    }
}