:root {
  --stone-50: #fbf8f2;
  --stone-100: #f4eee2;
  --stone-200: #e6dcc8;
  --stone-400: #b9a888;
  --ink: #2a2620;
  --ink-soft: #6b6255;
  --cedar: #2f4a3a;
  --cedar-dark: #1f3328;
  --cedar-soft: #e3ebe5;
  --gold: #b8893b;
  --gold-soft: #f3e6cc;
  --danger: #a8402f;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(42, 38, 32, 0.08);
  --font-display: 'Amiri', serif;
  --font-body: 'Tajawal', system-ui, sans-serif;
  --header-h: 64px;
}

* { box-sizing: border-box; }

html, body { margin: 0; }
html, body { max-width: 100%; overflow-x: clip; }

body {
  font-family: var(--font-body);
  background: var(--stone-50);
  color: var(--ink);
  line-height: 1.7;
  font-size: 16px;
}

a { color: var(--cedar); }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.3; margin: 0 0 0.5em; }

button { font: inherit; cursor: pointer; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  min-height: var(--header-h);
  background: rgba(251, 248, 242, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--stone-200);
}
.site-header .container { min-height: var(--header-h); display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--cedar-dark); }
.brand-mark {
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--cedar); color: var(--gold-soft);
  font-family: var(--font-display); font-size: 22px; font-weight: 700;
}
.brand-text { font-family: var(--font-display); font-size: 22px; font-weight: 700; white-space: nowrap; }
.nav { display: flex; gap: 4px; margin-inline-start: auto; align-items: center; }
.nav a {
  text-decoration: none; color: var(--ink-soft); padding: 6px 12px; border-radius: 8px; white-space: nowrap;
}
.nav a:hover, .nav a.active { color: var(--cedar-dark); background: var(--cedar-soft); }
.auth-area { display: flex; align-items: center; gap: 8px; }
.auth-user { font-size: 13px; color: var(--ink-soft); max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid transparent; border-radius: 10px;
  padding: 8px 16px; font-weight: 500; text-decoration: none; white-space: nowrap;
  background: var(--cedar); color: #fff; transition: background 0.15s, transform 0.1s;
}
.btn:hover { background: var(--cedar-dark); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-gold { background: var(--gold); }
.btn-gold:hover { background: #9c7330; }
.btn-ghost { background: transparent; color: var(--cedar-dark); border-color: var(--stone-200); }
.btn-ghost:hover { background: var(--stone-100); }
.btn-danger { background: transparent; color: var(--danger); border-color: #e8c4bc; }
.btn-danger:hover { background: #fbeeea; }
.btn-sm { padding: 5px 10px; font-size: 14px; border-radius: 8px; }
.tree-select { padding: 5px 8px; font: inherit; font-size: 14px; color: var(--cedar-dark); background: transparent; border: 1px solid var(--stone-200); border-radius: 8px; cursor: pointer; }
.tree-select:hover { background: var(--stone-100); }
.btn-icon { width: 36px; height: 36px; padding: 0; font-size: 18px; }
.btn-svg { width: 18px; height: 18px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Hero */
.hero {
  position: relative; min-height: 520px;
  display: flex; align-items: flex-end;
  color: #fff; overflow: hidden;
  background: var(--cedar-dark) url('../assets/farah-family.jpg') center / cover no-repeat;
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(20, 30, 24, 0.92), rgba(20, 30, 24, 0.55) 55%, rgba(20, 30, 24, 0.3));
}
.hero-content { position: relative; z-index: 1; padding-bottom: 56px; padding-top: 96px; text-shadow: 0 2px 14px rgba(0, 0, 0, 0.75), 0 1px 3px rgba(0, 0, 0, 0.6); }
.hero-search { text-shadow: none; }
.hero-eyebrow { color: var(--gold-soft); letter-spacing: 0.08em; font-size: 15px; margin-bottom: 8px; }
.hero h1 { font-size: clamp(40px, 7vw, 72px); margin-bottom: 4px; }
.hero-sub { font-size: clamp(17px, 2.4vw, 21px); opacity: 0.92; max-width: 640px; margin: 0 0 28px; }
.hero-alt { font-family: var(--font-display); font-size: 20px; opacity: 0.8; margin-bottom: 20px; }
.hero-search { display: flex; gap: 8px; max-width: 520px; }
.hero-search input {
  flex: 1; min-width: 0; border: none; border-radius: 10px; padding: 12px 16px; font: inherit; font-size: 16px;
}
.hero-search input:focus { outline: 3px solid var(--gold); }

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--stone-100); }
.section-title { font-size: clamp(28px, 4vw, 38px); color: var(--cedar-dark); }
.section-lead { color: var(--ink-soft); max-width: 720px; margin: 0 0 32px; font-size: 18px; }
.ornament { width: 72px; height: 3px; background: var(--gold); border-radius: 2px; margin: 0 0 20px; }

.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
.about-text p { margin: 0 0 1em; font-size: 17px; }
.about-text .about-byline { font-family: var(--font-display); font-size: 19px; color: var(--cedar); margin-top: 1.4em; }
.placeholder-note {
  border: 1px dashed var(--stone-400); background: var(--stone-50); color: var(--ink-soft);
  border-radius: var(--radius); padding: 14px 18px; font-size: 14px;
}
.about-figure {
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  aspect-ratio: 4 / 3; background: var(--stone-200) url('../assets/banner.svg') center / cover;
  display: flex; align-items: flex-end;
}
.about-figure figcaption {
  width: 100%; padding: 10px 14px; font-size: 13px; color: #fff;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
}

/* Photo slideshow (js/gallery.js) */
.about-figure { position: relative; touch-action: pan-y; }
.about-figure.has-photos { background: var(--cedar-dark); }
.about-figure .slide {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 0.6s;
}
.about-figure .slide.active { opacity: 1; }
.about-figure figcaption { position: relative; z-index: 2; pointer-events: none; }
.photo-open { position: absolute; inset: 0; z-index: 1; padding: 0; border: 0; background: none; cursor: zoom-in; }
.photo-nav {
  position: absolute; top: 50%; z-index: 3; transform: translateY(-50%);
  width: 44px; height: 44px; padding: 0; border: 0; border-radius: 50%;
  display: grid; place-items: center; font-size: 26px; line-height: 1;
  background: rgba(0, 0, 0, 0.45); color: #fff; transition: background 0.15s;
}
.photo-nav:hover { background: rgba(0, 0, 0, 0.7); }
.photo-nav.prev { inset-inline-start: 10px; }
.photo-nav.next { inset-inline-end: 10px; }
.photo-nav.next svg { transform: scaleX(-1); }
[dir='rtl'] .photo-nav.prev svg { transform: scaleX(-1); }
[dir='rtl'] .photo-nav.next svg { transform: none; }
.lightbox {
  position: fixed; inset: 0; margin: 0; padding: 0; border: 0;
  width: 100vw; height: 100vh; height: 100dvh; max-width: none; max-height: none;
  background: rgba(12, 14, 12, 0.94); touch-action: pan-y;
}
.lightbox[open] { display: block; overflow-y: auto; overscroll-behavior: contain; }
.lightbox::backdrop { background: transparent; }
.lightbox-body {
  min-height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 16px; padding: 72px 16px 40px;
}
.lightbox img { max-width: 100%; max-height: calc(100dvh - 160px); object-fit: contain; border-radius: 8px; }
.lightbox-close { position: fixed; top: 16px; inset-inline-end: 16px; transform: none; }
.lightbox-bar { display: flex; align-items: center; gap: 16px; }
.lightbox-bar .photo-nav { position: static; transform: none; }
.lightbox-count { color: #fff; font-size: 14px; min-width: 48px; text-align: center; }
.lightbox-text {
  width: 100%; max-width: 720px; background: var(--stone-50); color: var(--ink);
  border-radius: var(--radius); padding: 24px; font-size: 17px; line-height: 1.9;
}
.lightbox-text[hidden] { display: none; }
.lightbox-text h2 { font-size: 28px; color: var(--cedar-dark); }
.lightbox-text p { margin: 0 0 1em; white-space: pre-line; }
.lightbox-text p:last-child { margin-bottom: 0; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat {
  background: #fff; border: 1px solid var(--stone-200); border-radius: var(--radius);
  padding: 22px; text-align: center;
}
.stat-value { font-family: var(--font-display); font-size: 40px; color: var(--cedar); line-height: 1.1; font-weight: 700; }
.stat-label { color: var(--ink-soft); font-size: 15px; }

/* Origin line */
.origin { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 40px; }
.origin-step {
  background: #fff; border: 1px solid var(--stone-200); border-radius: 999px;
  padding: 8px 18px; font-family: var(--font-display); font-size: 20px; text-decoration: none; color: var(--ink);
}
.origin-step.key { background: var(--cedar); color: #fff; border-color: var(--cedar); }
.origin-arrow { color: var(--gold); font-size: 20px; }

.branches { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.branch {
  display: block; text-decoration: none; color: inherit;
  background: #fff; border: 1px solid var(--stone-200); border-radius: var(--radius);
  padding: 18px 20px; transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.branch:hover { border-color: var(--gold); box-shadow: var(--shadow); transform: translateY(-2px); }
.branch-name { font-family: var(--font-display); font-size: 24px; color: var(--cedar-dark); }
.branch-line { color: var(--ink-soft); font-size: 14px; }
.branch-count { margin-top: 8px; font-size: 14px; color: var(--gold); font-weight: 700; }

.cta {
  background: var(--cedar); color: #fff; border-radius: 20px; padding: 40px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.cta h2 { font-size: 32px; margin: 0; }
.cta p { margin: 4px 0 0; opacity: 0.85; }

.site-footer { border-top: 1px solid var(--stone-200); padding: 28px 0; color: var(--ink-soft); font-size: 14px; }
.site-footer .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

.demo-banner {
  background: var(--gold-soft); color: #6a4d17; font-size: 14px; text-align: center; padding: 6px 16px;
}

/* Tree page */
body.tree-page { height: 100vh; height: 100dvh; display: flex; flex-direction: column; overflow: hidden; }
.tree-layout { flex: 1; display: flex; min-height: 0; position: relative; }
.tree-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.toolbar {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  padding: 10px 16px; border-bottom: 1px solid var(--stone-200); background: #fff;
}
.search-box { position: relative; flex: 1; min-width: 200px; max-width: 460px; }
.search-box input {
  width: 100%; border: 1px solid var(--stone-200); border-radius: 10px;
  padding: 9px 14px; font: inherit; background: var(--stone-50);
}
.search-box input:focus { outline: 2px solid var(--gold); border-color: transparent; background: #fff; }
.search-hint { font-size: 12px; color: var(--ink-soft); }
.search-results {
  position: absolute; top: calc(100% + 4px); inset-inline: 0; z-index: 30;
  background: #fff; border: 1px solid var(--stone-200); border-radius: 10px; box-shadow: var(--shadow);
  max-height: 360px; overflow-y: auto; margin: 0; padding: 4px; list-style: none;
}
.search-results li {
  padding: 8px 12px; border-radius: 8px; cursor: pointer; display: flex; justify-content: space-between; gap: 8px;
}
.search-results li:hover, .search-results li.active { background: var(--cedar-soft); }
.search-results .gen { color: var(--ink-soft); font-size: 12px; white-space: nowrap; }
.search-results .empty { color: var(--ink-soft); cursor: default; }
.toolbar-group { display: flex; gap: 4px; margin-inline-start: auto; }

.tree-canvas {
  flex: 1; min-height: 0; position: relative; cursor: grab;
  background:
    radial-gradient(circle at 1px 1px, var(--stone-200) 1px, transparent 0) 0 0 / 24px 24px,
    var(--stone-50);
}
.tree-canvas:active { cursor: grabbing; }
.tree-canvas svg { width: 100%; height: 100%; display: block; direction: ltr; }
.tree-status { position: absolute; inset: 0; display: grid; place-items: center; color: var(--ink-soft); }

.link { fill: none; stroke: var(--stone-400); stroke-width: 1.5px; }
.link.on-path { stroke: var(--gold); stroke-width: 3px; }
.node { cursor: pointer; }
.node rect.card { fill: #fff; stroke: var(--stone-400); stroke-width: 1.2px; transition: fill 0.15s; }
.node:hover rect.card { fill: var(--gold-soft); }
.node.on-path rect.card { stroke: var(--gold); stroke-width: 2px; }
.node.selected rect.card { fill: var(--cedar); stroke: var(--cedar-dark); }
.node.selected text.name { fill: #fff; }
.node.match rect.card { stroke: var(--danger); stroke-width: 2.5px; }
.node.root rect.card { fill: var(--gold-soft); stroke: var(--gold); }
.node text.name { font-family: var(--font-body); font-size: 15px; font-weight: 500; fill: var(--ink); pointer-events: none; }
.node .badge circle { fill: var(--gold); }
.node .badge text { fill: #fff; font-size: 11px; font-weight: 700; font-family: var(--font-body); pointer-events: none; }

/* Details panel */
.panel {
  width: 360px; flex-shrink: 0; background: #fff; border-inline-start: 1px solid var(--stone-200);
  overflow-y: auto; padding: 20px; display: none;
}
.panel.open { display: block; }
.panel-header { display: flex; justify-content: space-between; align-items: start; gap: 8px; }
.panel h2 { font-size: 30px; color: var(--cedar-dark); margin: 0; }
.panel-lineage { color: var(--ink-soft); margin: 4px 0 16px; font-size: 15px; }
.panel-meta { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.chip { background: var(--stone-100); border-radius: 999px; padding: 2px 10px; font-size: 13px; color: var(--ink-soft); }
.panel h3 { font-family: var(--font-body); font-size: 14px; color: var(--ink-soft); font-weight: 700; margin: 20px 0 8px; }
.facts { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 15px; }
.facts dt { color: var(--ink-soft); }
.facts dd { margin: 0; }
.person-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.person-link {
  background: var(--stone-50); border: 1px solid var(--stone-200); border-radius: 8px;
  padding: 3px 10px; font-size: 15px; color: var(--cedar-dark);
}
.person-link:hover { border-color: var(--gold); background: var(--gold-soft); }
.ancestry { list-style: none; margin: 0; padding: 0; border-inline-start: 2px solid var(--gold-soft); }
.ancestry li { padding-inline-start: 12px; position: relative; }
.ancestry li::before {
  content: ''; position: absolute; inset-inline-start: -6px; top: 0.75em;
  width: 10px; height: 10px; border-radius: 50%; background: var(--gold);
}
.ancestry button { background: none; border: none; padding: 2px 0; color: var(--cedar-dark); }
.ancestry button:hover { text-decoration: underline; }
.panel-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--stone-200); }
.muted { color: var(--ink-soft); font-size: 14px; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 100; background: rgba(30, 28, 24, 0.45);
  display: none; align-items: center; justify-content: center; padding: 16px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: #fff; border-radius: 16px; width: 100%; max-width: 460px; max-height: 90vh; overflow-y: auto;
  padding: 24px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}
.modal h2 { font-size: 26px; color: var(--cedar-dark); }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 14px; color: var(--ink-soft); margin-bottom: 4px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; border: 1px solid var(--stone-200); border-radius: 8px; padding: 9px 12px; font: inherit; background: var(--stone-50);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: 2px solid var(--gold); border-color: transparent; background: #fff; }
.form-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 8px; }
.form-error { color: var(--danger); font-size: 14px; min-height: 1.4em; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fff; padding: 10px 20px; border-radius: 10px; z-index: 200;
  opacity: 0; transition: opacity 0.2s, transform 0.2s; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .brand-text { font-size: 18px; }
  .nav a { padding: 6px 8px; }
  .panel {
    position: absolute; inset: auto 0 0 0; width: auto; max-height: 60%;
    border-inline-start: none; border-top: 1px solid var(--stone-200);
    border-radius: 16px 16px 0 0; box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.12); z-index: 20;
  }
  .search-hint { display: none; }
  .site-header .container { flex-wrap: wrap; gap: 4px 10px; padding-block: 6px; }
  .auth-area { flex-wrap: wrap; margin-inline-start: auto; }
  .nav { margin-inline-start: 0; }
}

@media (max-width: 560px) {
  .brand-text { display: none; }
  /* One-row header: the logo already links home, so drop the Home link and keep controls touch-sized. */
  .site-header .container { flex-wrap: nowrap; gap: 6px; }
  .brand-mark { width: 36px; height: 36px; font-size: 20px; }
  .nav a { padding: 0 8px; min-height: 44px; display: inline-flex; align-items: center; }
  .nav a.nav-home, .nav a.active { display: none; }
  .auth-area { flex-wrap: nowrap; min-width: 0; }
  .auth-area .btn-sm, .tree-select { min-height: 44px; }
  /* Pinch zooms on touch screens, so the toolbar keeps search plus three icon buttons on one row. */
  .toolbar { flex-wrap: nowrap; padding: 8px 12px; }
  .search-box input { padding-block: 10px; }
  .toolbar .btn-label, .zoom-btn { display: none; }
  .toolbar .btn { width: 44px; height: 44px; padding: 0; }
  .panel-header .btn-icon { width: 44px; height: 44px; flex-shrink: 0; }
  .panel { padding-top: 24px; }
  .panel::before {
    content: ''; position: absolute; top: 8px; left: 50%; width: 40px; height: 4px; margin-left: -20px;
    border-radius: 2px; background: var(--stone-200);
  }
  .person-link { padding: 8px 12px; }
  .ancestry button { padding: 6px 0; }
  .hero { min-height: 440px; }
  .section { padding: 48px 0; }
  .cta { padding: 28px; }
  .form-2col { grid-template-columns: 1fr; }
  .auth-user { display: none; }
  .auth-area { gap: 4px; }
  .btn-sm { padding: 5px 8px; }
  .search-box { min-width: 0; max-width: none; }
  .toolbar-group { margin-inline-start: 0; flex-shrink: 0; }
  .hero-search { flex-wrap: wrap; }
  .origin-step { font-size: 17px; padding: 6px 12px; }
}

@media (max-width: 380px) {
  .site-header .container { flex-wrap: wrap; }
}