/* ═══════════════════════════════════════════════
   T-Map — Professional Design System
   เส้นทางสายประวัติศาสตร์ อำเภอเสนา
   ═══════════════════════════════════════════════ */

/* ─── Design Tokens ─── */
:root {
  --primary: #b8860b;
  --primary-hover: #d4a843;
  --primary-dark: #8a6508;
  --primary-bg: #fdf6e3;

  --surface: #ffffff;
  --surface-dim: #f7f5f0;
  --surface-warm: #fffcf5;

  --text: #1a1814;
  --text-2: #4a4540;
  --text-3: #7a756d;
  --text-4: #a09a90;

  --border: #e8e3d8;
  --border-light: #f0ece4;

  --success: #2d8a4e;
  --error: #c53030;

  --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.16);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-full: 999px;

  --sidebar-w: 340px;
  --topbar-h: 60px;
  --ease: cubic-bezier(.4, 0, .2, 1);

  --font: 'Noto Sans Thai', system-ui, -apple-system, sans-serif;
}

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

html, body { height: 100%; }

body {
  margin: 0;
  overflow: hidden;
  background: var(--surface-dim);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-4); }
* { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }

/* ─── Layout Shell ─── */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  width: 100vw;
  height: 100vh;
}

/* ─── Sidebar ─── */
.sidebar {
  grid-row: 1 / 3;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  min-width: 0;
  border-right: 1px solid var(--border);
  background: var(--surface-warm);
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  height: var(--topbar-h);
  background: linear-gradient(135deg, #1a1d18 0%, #2a2d25 100%);
  color: #fff9e8;
  transition: opacity .2s var(--ease);
}
.brand:hover { opacity: .9; }

.brand-icon {
  flex-shrink: 0;
  width: 30px;
  height: 38px;
  color: #d7a328;
}
.brand-icon svg {
  width: 100%; height: 100%;
  fill: currentColor; stroke: currentColor; stroke-width: 2;
}

.brand-text strong { display: block; color: #f7c94b; font-size: 20px; font-weight: 800; line-height: 1; }
.brand-text small { display: block; margin-top: 3px; font-size: 11px; font-weight: 600; letter-spacing: .02em; opacity: .85; }

/* Sidebar body */
.sidebar-body {
  overflow-y: auto;
  padding: 16px 14px 8px;
}

/* Search */
.search-wrap {
  position: relative;
  margin-bottom: 14px;
}
.search-ico {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-4);
  pointer-events: none;
}
.search-wrap input {
  width: 100%;
  height: 40px;
  padding: 0 12px 0 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: 13px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.search-wrap input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(184,134,11,.12);
}

/* Filter chips */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.chip {
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface);
  color: var(--text-3);
  font-size: 12px;
  font-weight: 700;
  transition: all .2s var(--ease);
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.is-active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

/* Place list */
.place-list {
  display: grid;
  gap: 0;
}

.place-card {
  display: grid;
  grid-template-columns: 24px 52px 1fr 16px;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 4px;
  border-bottom: 1px solid var(--border-light);
  border-radius: 0;
  text-align: left;
  transition: background .15s var(--ease);
}
.place-card:hover { background: rgba(184,134,11,.04); }
.place-card.is-active { background: var(--primary-bg); }

.num-badge {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}

.place-thumb {
  width: 52px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #d5cfc3, #c5bfb3);
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.place-info strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.place-info small {
  display: block;
  margin-top: 2px;
  color: var(--text-3);
  font-size: 11px;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.place-arrow { color: var(--text-4); font-size: 16px; }

/* Detail strip */
.detail-strip {
  border-top: 1px solid var(--border);
  padding: 12px 14px 14px;
  background: var(--primary-bg);
}

.detail-head {
  display: grid;
  grid-template-columns: 24px 1fr 24px;
  align-items: center;
  gap: 8px;
}
.detail-head strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-dark);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.detail-thumb {
  height: 100px;
  margin-top: 10px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #d5cfc3, #c5bfb3);
  background-size: cover;
  background-position: center;
}

.detail-strip p {
  margin: 10px 0;
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.detail-actions { display: flex; gap: 8px; }

/* Sidebar footer */
.sidebar-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
  padding: 0 14px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-3);
}
.admin-link {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-3);
  font-weight: 600;
  transition: color .2s;
}
.admin-link:hover { color: var(--primary); }

/* ─── Top Bar ─── */
.topbar {
  grid-column: 2;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 15;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .25s var(--ease);
}
.hamburger.is-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.topbar-nav a {
  position: relative;
  display: grid;
  place-items: center;
  height: var(--topbar-h);
  padding: 0 14px;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 700;
  transition: color .2s;
}
.topbar-nav a:hover { color: var(--primary); }
.topbar-nav a.is-active { color: var(--primary); }
.topbar-nav a.is-active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2.5px;
  border-radius: 2px 2px 0 0;
  background: var(--primary);
}

.topbar-end {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-search {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text-4);
  transition: border-color .2s;
}
.topbar-search:focus-within { border-color: var(--primary); }
.topbar-search input {
  width: 140px;
  border: none;
  background: none;
  font-size: 13px;
  outline: none;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 36px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  transition: all .2s var(--ease);
  white-space: nowrap;
}
.btn-sm { height: 32px; padding: 0 12px; font-size: 12px; }

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

.btn-outline {
  background: var(--surface);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-glass {
  background: rgba(255,255,255,.88);
  color: var(--text-2);
  border: 1px solid rgba(255,255,255,.6);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}
.btn-glass:hover { background: rgba(255,255,255,.96); color: var(--primary); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-3);
  transition: color .2s, background .2s;
}
.icon-btn:hover { color: var(--error); background: rgba(197,48,48,.08); }

/* ─── Map Area ─── */
.map-area {
  position: relative;
  grid-column: 2;
  grid-row: 2;
  overflow: hidden;
  background: #e9edf2;
}

.map-canvas {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(100%, 800px);
  aspect-ratio: 1302 / 1208;
  overflow: visible;
  transform: translate(-50%, -50%) scale(var(--map-scale, 1));
  transform-origin: center;
  transition: transform .3s var(--ease);
  box-shadow: 0 18px 50px rgba(30, 50, 72, .14);
}

.map-photo, .map-vignette, .marker-layer {
  position: absolute;
  inset: 0;
}

.map-photo {
  background: url('sena-district-map.png') center / 100% 100% no-repeat;
}

.map-vignette {
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,.04), transparent 18%, transparent 86%, rgba(19,38,60,.04));
}

/* Markers */
.marker-layer { z-index: 5; }

.marker {
  position: absolute;
  z-index: 5;
  width: clamp(30px, 3.3vw, 42px);
  aspect-ratio: .82;
  border: 2px solid transparent;
  border-radius: 48% 48% 44% 44%;
  background: transparent;
  transform: translate(-50%, -50%);
  transition: border-color .15s var(--ease), background .15s var(--ease), box-shadow .15s var(--ease);
}
.marker span {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}
.marker.is-active {
  border-color: rgba(255, 184, 28, .9);
  background: rgba(255, 213, 86, .12);
  box-shadow: 0 0 0 4px rgba(255,255,255,.72), 0 5px 18px rgba(19,54,106,.3);
}
.marker:hover,
.marker:focus-visible {
  border-color: rgba(255, 255, 255, .95);
  background: rgba(34, 120, 210, .12);
  box-shadow: 0 0 0 4px rgba(20,78,154,.28), 0 5px 18px rgba(19,54,106,.28);
  outline: none;
}
.marker:hover, .marker.is-active { z-index: 10; }

/* Preview card */
.preview-card {
  position: absolute;
  z-index: 20;
  top: var(--preview-top, 12px);
  left: var(--preview-left, 12px);
  width: min(300px, 80vw);
  max-height: calc(100% - 24px);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-xl);
  overflow: visible;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
}
.preview-card::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--surface);
  transform: rotate(45deg);
  box-shadow: -2px 2px 6px rgba(0,0,0,.08);
}
.preview-card[data-placement="right"]::after {
  left: -7px;
  top: 50%;
  margin-top: -7px;
}
.preview-card[data-placement="left"]::after {
  right: -7px;
  top: 50%;
  margin-top: -7px;
}
.preview-card[data-placement="bottom"]::after {
  top: -7px;
  left: 50%;
  margin-left: -7px;
}
.preview-card[data-placement="top"]::after {
  bottom: -7px;
  left: 50%;
  margin-left: -7px;
}
.preview-card.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.preview-img {
  position: relative;
  height: 150px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(135deg, #c5bfb3, #a09a90);
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.preview-x {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(0,0,0,.4);
  color: #fff;
  font-size: 14px;
  display: grid;
  place-items: center;
  backdrop-filter: blur(4px);
  transition: background .2s;
}
.preview-x:hover { background: rgba(0,0,0,.7); }

.preview-body {
  padding: 14px 16px 16px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: var(--surface);
}
.preview-body h1 { margin: 0; font-size: 16px; font-weight: 700; line-height: 1.3; }
.preview-meta { display: flex; align-items: center; gap: 8px; margin: 8px 0; }
.badge {
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
}
.preview-meta small { color: var(--text-3); font-size: 11px; }
.preview-body p {
  margin: 0 0 12px;
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Map controls */
.map-ctrl {
  position: absolute;
  z-index: 15;
  top: 20px;
  left: 20px;
  display: grid;
  gap: 6px;
}
.map-ctrl button {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: var(--radius);
  background: rgba(255,255,255,.9);
  color: var(--text-2);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(6px);
  transition: background .2s, color .2s;
}
.map-ctrl button:hover { background: #fff; color: var(--primary); }

.map-foot {
  position: absolute;
  z-index: 15;
  bottom: 20px;
  right: 20px;
  display: flex;
  gap: 6px;
}

/* Overlay */
.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.3);
  z-index: 18;
}
.overlay.is-visible { display: block; }

/* ─── Detail Modal ─── */
.detail-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 12, 8, .6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s var(--ease), visibility .3s;
}
.detail-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.detail-modal-inner {
  position: relative;
  width: min(680px, 92vw);
  max-height: 92vh;
  overflow-y: auto;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  transform: translateY(16px) scale(.97);
  transition: transform .3s var(--ease);
}
.detail-modal.is-open .detail-modal-inner {
  transform: translateY(0) scale(1);
}

.detail-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 5;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(0,0,0,.45);
  color: #fff;
  display: grid;
  place-items: center;
  backdrop-filter: blur(4px);
  transition: background .2s;
}
.detail-modal-close:hover { background: rgba(0,0,0,.7); }

.detail-modal-hero {
  width: 100%;
  height: 280px;
  background: linear-gradient(135deg, #c5bfb3, #a09a90);
  background-size: cover;
  background-position: center;
}

.detail-modal-gallery {
  display: flex;
  gap: 6px;
  padding: 8px 20px 0;
  overflow-x: auto;
}
.detail-modal-gallery:empty { display: none; }

.gallery-thumb {
  flex-shrink: 0;
  width: 72px;
  height: 54px;
  border-radius: var(--radius-sm);
  background-size: cover;
  background-position: center;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: .65;
  transition: opacity .2s, border-color .2s;
}
.gallery-thumb:hover,
.gallery-thumb.is-active {
  opacity: 1;
  border-color: var(--primary);
}

.detail-modal-content {
  padding: 20px 24px 24px;
}

.detail-modal-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.detail-modal-meta small { color: var(--text-3); font-size: 12px; }

.detail-modal-content h1 {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
}

.detail-modal-info {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
  padding: 14px 16px;
  background: var(--surface-dim);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
}

.info-item { font-size: 12px; }
.info-item dt { color: var(--text-3); font-weight: 700; margin-bottom: 2px; }
.info-item dd { margin: 0; color: var(--text); font-weight: 500; }

.detail-modal-body {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-2);
  white-space: pre-line;
  word-wrap: break-word;
}

.detail-modal-foot {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .shell {
    grid-template-columns: 1fr;
    grid-template-rows: var(--topbar-h) 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0;
    width: 320px;
    z-index: 30;
    transform: translateX(-100%);
    transition: transform .3s var(--ease);
    box-shadow: none;
  }
  .sidebar.is-open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .topbar { grid-column: 1; }
  .hamburger { display: flex; }

  .map-area {
    grid-column: 1;
    grid-row: 2;
  }

  .topbar-admin { display: none; }
  .topbar-search input { width: 100px; }

  .map-foot { bottom: 12px; right: 12px; }
  .map-ctrl { top: 12px; left: 12px; }
}

@media (max-width: 480px) {
  .topbar-search { display: none; }
  .topbar-nav a { font-size: 12px; padding: 0 10px; }
  .preview-card { width: min(300px, calc(100% - 24px)); }
}