/* ========================================
   Art Shelter — Responsive Enhancements
   Mobile · Tablet · Desktop
   Load after style.css
   ======================================== */

:root {
  --container-padding: clamp(1rem, 3.5vw, 1.5rem);
  --section-pad-y: clamp(2.5rem, 6vw, 6rem);
}

.container {
  padding-inline: var(--container-padding);
}

section {
  padding-block: var(--section-pad-y);
}

html {
  overflow-x: clip;
}

body.nav-open,
body.admin-sidebar-open {
  overflow: hidden;
}

/* ---------- Large tablet / small laptop ---------- */
@media (max-width: 1100px) {
  .offer-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .events-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }

  .exhibitions-cards {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }

  .admin-form-grid {
    grid-template-columns: 1fr;
  }

  .admin-panel-header-row {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-panel-header-row .btn {
    align-self: flex-start;
  }
}

/* ---------- Tablet landscape ---------- */
@media (max-width: 1024px) {
  section {
    padding-block: clamp(2rem, 5vw, 4rem);
  }

  .events-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
  }

  .featured-card {
    flex: 0 0 min(42vw, 320px);
  }

  .reel-card {
    flex: 0 0 min(38vw, 280px);
  }

  .event-detail-content h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }

  .event-detail-img-wrap {
    height: min(42vw, 380px);
  }

  .page-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .section-header {
    margin-bottom: var(--space-lg);
  }

  .artists-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }

  .admin-event-form-grid {
    grid-template-columns: 1fr;
  }

  .schedule-row-top {
    grid-template-columns: 140px minmax(0, 1fr) 44px;
  }
}

/* ---------- Tablet portrait ---------- */
@media (max-width: 900px) {
  .about-us-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .about-us-content {
    padding-left: 0;
    text-align: center;
  }

  .about-us-image img {
    max-width: 100%;
  }

  .founders-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .founder-card {
    max-width: 500px;
    margin-inline: auto;
  }

  .offer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero-desc {
    font-size: 1rem;
    padding-inline: var(--space-xs);
  }

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

  .exhibitions-cards {
    grid-template-columns: 1fr;
  }

  .event-page-card-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .host-card {
    flex-direction: column;
    text-align: center;
  }

  .host-avatar {
    margin-inline: auto;
  }

  .contact-map iframe {
    min-height: 280px;
  }

  .filter-tabs {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .filter-tab {
    flex: 1 1 auto;
    min-width: fit-content;
    text-align: center;
  }

  .my-bookings-actions {
    flex-wrap: wrap;
  }

  .lead-actions-cell {
    white-space: normal;
  }

  .lead-actions-cell form {
    display: inline-block;
    margin-bottom: 0.35rem;
  }

  .schedule-row-top {
    grid-template-columns: 1fr 44px;
    grid-template-areas:
      "time remove"
      "session session";
  }

  .schedule-field-time {
    grid-area: time;
  }

  .schedule-field-title {
    grid-area: session;
  }

  .schedule-row-remove {
    grid-area: remove;
    justify-self: end;
  }
}

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
  :root {
    --nav-height: 72px;
  }

  .navbar {
    padding-top: env(safe-area-inset-top, 0);
    height: calc(var(--nav-height) + env(safe-area-inset-top, 0));
  }

  .navbar .container {
    height: var(--nav-height);
    align-items: center;
    gap: var(--space-sm);
  }

  .navbar .logo {
    max-width: 120px;
  }

  .navbar .logo img {
    height: 40px;
    max-width: 120px;
    max-height: calc(var(--nav-height) - 24px);
  }

  .logo {
    font-size: 1.25rem;
    gap: 0.5rem;
  }

  .logo img {
    height: 40px;
    max-height: calc(var(--nav-height) - 24px);
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 10px;
  }

  .nav-links {
    max-height: calc(100dvh - var(--nav-height));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 999;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0.65rem 0;
    font-size: 0.95rem;
  }

  .nav-links a::after {
    bottom: 0.35rem;
  }

  .hero {
    min-height: 100dvh;
    min-height: 100svh;
    padding-top: var(--nav-height);
  }

  .hero-content {
    padding: var(--space-lg) var(--container-padding);
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    margin-inline: auto;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .offer-grid {
    display: flex;
    gap: var(--space-sm);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--container-padding);
    padding-bottom: 0.5rem;
    -ms-overflow-style: none;
    scrollbar-width: none;
  }

  .offer-grid::-webkit-scrollbar {
    display: none;
  }

  .offer-card {
    flex: 0 0 min(72vw, 200px);
    scroll-snap-align: start;
  }

  .scroll-indicator {
    display: none;
  }

  .featured-track,
  .reels-track {
    padding-inline: var(--container-padding);
    scroll-padding-inline: var(--container-padding);
    gap: var(--space-sm);
  }

  .reels-track {
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    max-width: none;
    margin-inline: 0;
  }

  .featured-card {
    flex: 0 0 min(78vw, 300px);
  }

  .reel-card {
    flex: 0 0 min(72vw, 260px);
    width: auto;
  }

  .gallery-filters {
    gap: 0.5rem;
    margin-bottom: var(--space-lg);
  }

  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.72rem;
  }

  .event-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-md);
  }

  .event-date {
    margin-bottom: 0.5rem;
  }

  .event-status {
    grid-column: 1;
    justify-self: center;
  }

  .event-page-card-img {
    height: min(52vw, 220px);
  }

  .event-page-card-title {
    font-size: 1.2rem;
  }

  .event-detail-img-wrap {
    height: min(56vw, 320px);
    margin-bottom: var(--space-md);
  }

  .event-detail-content h2 {
    font-size: 1.45rem;
  }

  .info-item-row {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .breadcrumb {
    flex-wrap: wrap;
    row-gap: 0.25rem;
    font-size: 0.8rem;
  }

  .page-hero {
    min-height: 220px;
    padding-top: calc(var(--nav-height) + var(--space-lg));
    padding-bottom: var(--space-md);
  }

  .page-hero-desc {
    font-size: 0.95rem;
  }

  .exhibition-card-content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .exhibition-card-date {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    text-align: left;
  }

  .testimonial-card {
    min-width: 100%;
    padding: var(--space-lg) var(--space-md);
  }

  .testimonial-text {
    font-size: 0.95rem;
  }

  .testimonial-controls {
    gap: var(--space-sm);
  }

  .cta-inner {
    padding: var(--space-md);
  }

  .about-image::after {
    inset: var(--space-sm);
  }

  .contact-info-item {
    padding: var(--space-md);
  }

  .my-bookings-grid {
    gap: var(--space-md);
  }

  .my-bookings-detail-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .my-bookings-actions {
    flex-direction: column;
    width: 100%;
  }

  .my-bookings-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .legal-content h2 {
    font-size: 1.25rem;
  }

  .legal-section {
    padding-block: var(--space-lg) var(--space-xl);
  }

  .visit-hours-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
  }

  /* Lightbox — stacked mobile layout */
  .lightbox {
    align-items: flex-start;
    padding: calc(var(--nav-height) + var(--space-sm)) var(--container-padding) var(--space-lg);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .lightbox-content {
    max-width: 100%;
    width: 100%;
    margin-top: 2.5rem;
    transform: none;
  }

  .lightbox.active .lightbox-content {
    transform: none;
  }

  .lightbox-content img {
    max-height: 55vh;
    width: 100%;
    object-fit: contain;
  }

  .lightbox-close {
    position: fixed;
    top: calc(var(--nav-height) + 6px);
    right: var(--container-padding);
    z-index: 2001;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    color: var(--clr-primary);
    border-radius: 50%;
    box-shadow: var(--shadow-soft);
  }

  .lightbox-prev,
  .lightbox-next {
    position: fixed;
    top: auto;
    bottom: var(--space-md);
    transform: none;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    color: var(--clr-primary);
    border-radius: 50%;
    font-size: 1.5rem;
    padding: 0;
    box-shadow: var(--shadow-soft);
  }

  .lightbox-prev {
    left: var(--container-padding);
  }

  .lightbox-next {
    right: var(--container-padding);
  }

  .lightbox-info,
  .lightbox-details {
    position: static;
    margin-top: var(--space-sm);
    flex-wrap: wrap;
  }

  .lightbox-info h3 {
    font-size: 1.05rem;
  }

  /* Admin mobile */
  .admin-topbar {
    padding-inline: var(--space-sm);
    gap: var(--space-xs);
  }

  .admin-page-title {
    font-size: 1.1rem;
    line-height: 1.3;
  }

  .admin-content {
    padding: var(--space-sm);
  }

  .admin-dash-welcome {
    padding: var(--space-sm);
  }

  .admin-stat-value {
    font-size: 1.55rem;
  }

  .admin-stat-card-detailed {
    padding: var(--space-sm);
  }

  .admin-table-wrap {
    margin-inline: calc(-1 * var(--space-sm));
    padding-inline: var(--space-sm);
    border-radius: 0;
    -webkit-overflow-scrolling: touch;
  }

  .admin-table {
    min-width: 520px;
    font-size: 0.82rem;
  }

  .admin-table th,
  .admin-table td {
    padding: 0.65rem 0.5rem;
  }

  .admin-message-card {
    padding: var(--space-sm);
  }

  .admin-message-header {
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
  }

  .admin-message-header time {
    white-space: normal;
    font-size: 0.75rem;
  }

  .admin-message-actions {
    flex-direction: column;
  }

  .admin-message-actions form {
    width: 100%;
  }

  .admin-message-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .admin-panel-header h2 {
    font-size: 1.35rem;
  }

  .admin-panel-header p {
    font-size: 0.88rem;
  }

  .admin-panel-header-row .btn {
    width: 100%;
    justify-content: center;
  }

  .admin-item-card {
    padding: var(--space-sm);
  }

  .admin-item-card-header {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-item-card-actions {
    flex-direction: column;
  }

  .admin-item-card-actions .btn,
  .admin-item-card-actions form {
    width: 100%;
  }

  .admin-item-card-actions .btn {
    justify-content: center;
  }

  .admin-reel-form .btn-primary {
    width: 100%;
    justify-content: center;
  }

  .admin-card .image-upload-hint {
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .admin-form-actions {
    flex-wrap: wrap;
  }

  .image-upload-zone .image-upload-placeholder {
    min-height: 140px;
    padding: var(--space-md);
  }

  .image-upload-spec {
    font-size: 0.75rem;
  }

  .admin-sidebar-toggle {
    min-width: 44px;
    min-height: 44px;
  }

  .admin-login-card {
    margin-inline: var(--space-sm);
  }
}

/* ---------- Small phones ---------- */
@media (max-width: 480px) {
  .hero h1 {
    font-size: clamp(2.2rem, 10vw, 2.8rem);
  }

  .section-title {
    font-size: clamp(1.65rem, 7vw, 2rem);
  }

  .section-subtitle {
    font-size: 0.9rem;
  }

  .btn {
    padding: 0.85rem 1.25rem;
    font-size: 0.78rem;
  }

  .featured-card {
    flex: 0 0 min(85vw, 300px);
  }

  .reel-card {
    flex: 0 0 min(82vw, 260px);
  }

  .gallery-stats {
    justify-content: center;
  }

  .stat-item {
    min-width: calc(50% - var(--space-sm));
    text-align: center;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .artist-card {
    padding: var(--space-md);
  }

  .faq-question {
    font-size: 0.95rem;
    padding: var(--space-sm) 0;
    min-height: 44px;
    align-items: center;
  }

  .event-page-card-content {
    padding: var(--space-sm);
  }

  .admin-form-actions {
    flex-direction: column;
  }

  .admin-form-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .admin-quick-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .admin-reel-form .form-group {
    width: 100%;
  }

  .admin-reel-form input[type="url"],
  .admin-reel-form input[type="text"],
  .admin-event-form input[type="date"],
  .admin-event-form input[type="time"],
  .admin-event-form select {
    font-size: 16px;
  }

  .admin-gallery-grid.gallery-masonry {
    columns: 1;
  }

  .no-results {
    padding: var(--space-xl) var(--space-sm);
  }

  .no-results h3 {
    font-size: 1.25rem;
  }
}

/* ---------- Very small screens ---------- */
@media (max-width: 360px) {
  .navbar .logo {
    max-width: 100px;
  }

  .navbar .logo img {
    height: 36px;
    max-width: 100px;
  }

  .logo {
    font-size: 1rem;
  }

  .logo img {
    height: 36px;
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .filter-tabs {
    width: 100%;
  }

  .filter-tab {
    flex: 1 1 45%;
  }
}

/* ---------- Touch devices ---------- */
@media (hover: none) and (pointer: coarse) {
  .gallery-item-info {
    transform: translateY(0);
    opacity: 1;
  }

  .featured-card-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(var(--blue-rgb), 0.85) 0%, rgba(var(--pink-rgb), 0.2) 45%, transparent 70%);
  }

  .btn-primary:hover,
  .btn-outline:hover,
  .featured-card:hover,
  .event-page-card:hover,
  .exhibition-card:hover {
    transform: none;
  }
}

/* ---------- Landscape phones ---------- */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding-block: calc(var(--nav-height) + var(--space-md)) var(--space-lg);
  }

  .scroll-indicator {
    display: none;
  }

  .nav-links {
    max-height: calc(100dvh - var(--nav-height));
  }
}

/* ---------- Reduced motion ---------- */
@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;
  }

  .reveal,
  .reveal-left,
  .reveal-right {
    opacity: 1;
    transform: none;
  }
}