/* ============================================================================
   MONTAG Website Stylesheet
   ========================================================================= */

/* CSS Variables */
:root {
    --color-bg: #FFFFFF;
    --color-text: #000000;
    --color-border: #000000;
    --color-accent: #333333;

    --font-primary: 'Special Elite', 'Courier New', monospace;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    --max-width: 1200px;
}

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

/* Base */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    font-size: clamp(1rem, 2vw, 1.2rem);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Typography */
h1, h2, h3 {
    font-weight: 400;
    margin-bottom: var(--spacing-md);
}

.title {
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: 0.2em;
    text-align: center;
    margin: var(--spacing-lg) 0 var(--spacing-md);
}

.tagline {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-md);
}

/* Nav icon button (Instagram) */
.nav-btn.nav-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    padding: 0.75rem;
    background: none;
}

.nav-btn-icon svg {
    display: block;
    width: 24px;
    height: 24px;
}

.nav-btn-icon:hover {
    background: none;
    color: var(--color-text);
    opacity: 0.5;
}

@media (max-width: 768px) {
    .nav-btn-icon {
        width: 100%;
        justify-content: center;
    }
}

/* Language Switcher (fixed top-left) */
.lang-btn {
    position: fixed;
    top: 0.8rem;
    left: 0.8rem;
    z-index: 100;
    font-family: var(--font-primary);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    text-decoration: none;
    opacity: 0.35;
    transition: opacity 0.3s;
}

.lang-btn:hover {
    opacity: 1;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
}

/* Hero: Current Exhibition */
.hero-exhibition {
    margin: var(--spacing-lg) auto var(--spacing-sm);
    max-width: 800px;
}

.hero-exhibition-title {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-style: italic;
    letter-spacing: 0.04em;
    margin-bottom: 0.3rem;
    opacity: 0.7;
}

.hero-exhibition-artists {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-xs);
}

.hero-exhibition-dates {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    opacity: 0.7;
}

.hero-exhibition-sep {
    margin: 0 0.5em;
}

.hero-exhibition-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s;
    text-decoration: underline;
    padding: 0;
}

.hero-exhibition-link:hover {
    opacity: 1;
}

/* Hero: Upcoming Exhibition (visually subdued) */
.hero-upcoming {
    margin: var(--spacing-md) auto var(--spacing-sm);
    max-width: 500px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid #e0e0e0;
    opacity: 0.55;
    transition: opacity 0.3s;
}

.hero-upcoming:hover {
    opacity: 0.85;
}

.hero-upcoming-label {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.7;
    margin-bottom: var(--spacing-xs);
}

.hero-upcoming-title {
    font-size: clamp(0.85rem, 1.8vw, 1rem);
    font-style: italic;
    letter-spacing: 0.03em;
    margin-bottom: 0.2rem;
    opacity: 0.7;
}

.hero-upcoming-artists {
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    letter-spacing: 0.04em;
    margin-bottom: var(--spacing-xs);
}

.hero-upcoming-date {
    font-size: clamp(0.8rem, 1.8vw, 0.95rem);
    opacity: 0.7;
    margin-bottom: var(--spacing-xs);
}

.hero-upcoming-hint {
    font-size: 0.8rem;
    opacity: 0.5;
}

/* Hero: Reservation CTA */
.hero-reservation-cta {
    margin: var(--spacing-lg) auto var(--spacing-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.hero-reserve-btn {
    font-size: 1.2rem !important;
    padding: 1rem 3rem !important;
    position: relative;
    border-radius: 4px;
    width: 100%;
    max-width: 400px;
}

.hero-seats-info {
    display: block;
    font-size: 0.75rem;
    opacity: 0.6;
    margin-top: 4px;
    letter-spacing: 0.05em;
}

.hero-seats-info.full {
    color: #dc3545;
    opacity: 1;
}

.hero-text {
    margin: var(--spacing-lg) auto;
    max-width: 800px;
}

.hero-text p {
    margin-bottom: var(--spacing-sm);
}

.hero-image {
    margin-top: var(--spacing-xl);
}

.hero-image img {
    width: 100%;
    height: auto;
    max-width: 900px;
    display: block;
    margin: 0 auto;
}

/* Navigation */
.main-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.nav-btn,
.back-btn,
.submit-btn {
    font-family: var(--font-primary);
    font-size: 1rem;
    padding: 0.75rem 2rem;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.nav-btn:hover,
.back-btn:hover,
.submit-btn:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

/* Sections */
.section {
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
}

.section.hidden {
    display: none;
}

.back-btn {
    margin-bottom: var(--spacing-md);
}

/* About */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Exhibitions */
.exhibitions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.exhibition-item {
    border: 2px solid var(--color-border);
    padding: var(--spacing-md);
}

.exhibition-item h3 {
    margin-bottom: var(--spacing-sm);
}

.exhibition-meta {
    margin-bottom: var(--spacing-sm);
    opacity: 0.7;
}

.exhibition-artists {
    margin-bottom: var(--spacing-sm);
    font-style: italic;
}

.exhibition-description {
    line-height: 1.8;
}

.exhibition-description p {
    margin-bottom: var(--spacing-sm);
}

.exhibition-group-label {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0.4;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid #ddd;
}

.exhibition-group-label:first-child {
    margin-top: 0;
}

.exhibition-past {
    opacity: 0.5;
}

.exhibition-photos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.exhibition-photos img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    cursor: pointer;
    transition: opacity 0.3s;
}

.exhibition-photos img:hover {
    opacity: 0.8;
}

/* Menu */
.menu-content {
    max-width: 600px;
    margin: 0 auto;
}

.menu-week {
    margin-bottom: var(--spacing-sm);
    font-weight: bold;
}

.menu-dishes {
    list-style: none;
    margin-top: var(--spacing-md);
}

.menu-dishes li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid #eee;
}

.menu-dishes li:last-child {
    border-bottom: none;
}

.menu-empty {
    text-align: center;
    opacity: 0.6;
    padding: var(--spacing-xl) 0;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.3s;
}

.gallery-item img:hover {
    transform: scale(1.05);
}

/* Reservation Form */
.reservation-form {
    max-width: 600px;
    margin: var(--spacing-md) auto;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: bold;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    font-family: var(--font-primary);
    font-size: 1rem;
    border: 2px solid var(--color-border);
    background: var(--color-bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-group-checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-weight: normal;
    font-size: 0.85rem;
    opacity: 0.8;
    cursor: pointer;
}

.form-group-checkbox input[type="checkbox"] {
    width: auto;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    margin-top: var(--spacing-md);
}

.reservation-status {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--color-border);
    text-align: center;
}

.event-availability {
    display: none;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
}

.event-availability.available {
    opacity: 0.7;
}

.event-availability.full {
    color: #dc3545;
    opacity: 1;
}

.reservation-status.success {
    background: #d4edda;
    border-color: #28a745;
}

.reservation-status.error {
    background: #f8d7da;
    border-color: #dc3545;
}

.reservation-status.info {
    background: #d1ecf1;
    border-color: #0c5460;
}

/* Reservation: Success confirmation */
.reservation-confirmation {
    max-width: 600px;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-lg);
    border: 2px solid #28a745;
    background: #d4edda;
    text-align: center;
}

.reservation-confirmation-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.reservation-confirmation h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
}

.reservation-confirmation p {
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.reservation-confirmation .summary {
    text-align: left;
    margin: var(--spacing-md) auto;
    max-width: 300px;
}

.reservation-confirmation .summary p {
    margin-bottom: var(--spacing-xs);
    opacity: 1;
}

.reservation-confirmation .summary strong {
    display: inline-block;
    min-width: 100px;
}

.reservation-confirmation-status {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
}

.reservation-confirmation-next {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.05);
    text-align: left;
}

.reservation-confirmation-next p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.reservation-confirmation .new-reservation-btn {
    margin-top: var(--spacing-md);
}

.reservation-prefill-info {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    text-align: center;
}

/* Legal Pages */
.section-legal .legal-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.section-legal .legal-content p {
    margin-bottom: var(--spacing-sm);
}

.section-legal .legal-content strong {
    display: block;
    margin-top: var(--spacing-md);
}

/* Footer */
.site-footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
    font-size: 0.85rem;
}

.footer-links {
    margin-bottom: var(--spacing-xs);
}

.footer-link {
    font-family: var(--font-primary);
    font-size: 0.85rem;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    text-decoration: underline;
    padding: 0;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.footer-link:hover {
    opacity: 1;
}

.footer-sep {
    margin: 0 0.5em;
    opacity: 0.4;
}

.footer-credit {
    opacity: 0.4;
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
}

.footer-credit a {
    color: var(--color-text);
}

/* Loading Spinner */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
}

.loading::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: white;
    font-size: 40px;
    cursor: pointer;
    background: none;
    border: none;
    font-family: var(--font-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

    .title {
        letter-spacing: 0.15em;
    }

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

    .nav-btn {
        width: 100%;
        text-align: center;
    }

    .exhibition-photos,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   Admin Styles
   ========================================================================= */

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.admin-header h1 {
    margin-bottom: 0;
}

.admin-nav {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.admin-nav a,
.admin-nav button {
    font-family: var(--font-primary);
    font-size: 0.9rem;
    padding: 0.5rem 1.5rem;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    color: var(--color-text);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
}

.admin-nav a:hover,
.admin-nav button:hover,
.admin-nav a.active {
    background: var(--color-text);
    color: var(--color-bg);
}

.admin-section {
    margin-bottom: var(--spacing-xl);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-md);
}

.admin-table th,
.admin-table td {
    padding: var(--spacing-sm);
    border: 1px solid #ddd;
    text-align: left;
    font-size: 0.9rem;
}

.admin-table th {
    background: #f5f5f5;
    font-weight: bold;
}

.admin-table tr:hover {
    background: #fafafa;
}

.admin-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.admin-actions button {
    font-family: var(--font-primary);
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem;
    cursor: pointer;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    transition: all 0.2s;
}

.admin-actions button:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

.admin-actions button.danger {
    border-color: #dc3545;
    color: #dc3545;
}

.admin-actions button.danger:hover {
    background: #dc3545;
    color: white;
}

.admin-actions button.confirm {
    border-color: #28a745;
    color: #28a745;
}

.admin-actions button.confirm:hover {
    background: #28a745;
    color: white;
}

.status-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.8rem;
    border-radius: 3px;
}

.status-badge.pending {
    background: #fff3cd;
    color: #856404;
}

.status-badge.confirmed {
    background: #d4edda;
    color: #155724;
}

.status-badge.cancelled {
    background: #f8d7da;
    color: #721c24;
}

.status-badge.waitlist {
    background: #ffe0b2;
    color: #e65100;
}

/* Login Form */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-form {
    max-width: 400px;
    width: 100%;
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
}

.login-form h1 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.login-error {
    background: #f8d7da;
    border: 1px solid #dc3545;
    color: #721c24;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

/* Admin form for adding exhibitions */
.admin-form {
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
}

.admin-form h3 {
    margin-bottom: var(--spacing-md);
}