/* ═══════════════════════════════════════════════════════
   TURNUL DIN DUNĂRE — Tricule: three towers, one lake
   ═══════════════════════════════════════════════════════ */

/* ── Fonts ──────────────────────────────────────────── */
@font-face {
  font-family: 'Cormorant';
  src: url('/turnul-din-dunare/assets/fonts/Cormorant.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

/* ── Tokens: light ──────────────────────────────────── */
:root {
  --paper:    #f1eee6;
  --surface:  #e3ded0;
  --surface-2:#d4cdbb;
  --stone:    #b9ad96;

  --ink:      #1b1712;
  --ink-2:    #3b342a;
  --ink-3:    #5c5346;
  --ink-4:    #7d7466;

  --accent:   #0f5f6e;
  --accent-bg:#d4e6e9;

  --water:    #0f5f6e;
  --water-deep:#0a3f4a;
  --water-bg: #d4e6e9;

  --focus:    #0f5f6e;
  --border:   rgba(27,23,18,.12);

  --bar-h:    2.75rem;
  --measure:  38rem;
  --gap:      clamp(1.5rem, 3vw, 3rem);

  --font-display: 'Cormorant', 'Georgia', 'Times New Roman', serif;
  --font-body:    'Georgia', 'Times New Roman', serif;
  --font-mono:    'SFMono-Regular', 'Consolas', monospace;
}

/* ── Tokens: dark ───────────────────────────────────── */
[data-theme="dark"] {
  --paper:    #0e1110;
  --surface:  #161c1b;
  --surface-2:#212927;
  --stone:    #353f3c;

  --ink:      #e9e4d6;
  --ink-2:    #cbc4b2;
  --ink-3:    #aaa294;
  --ink-4:    #8a8378;

  --accent:   #7cc4d2;
  --accent-bg:#122a2e;

  --water:    #7cc4d2;
  --water-deep:#3d8fa0;
  --water-bg: #122a2e;

  --focus:    #7cc4d2;
  --border:   rgba(233,228,214,.1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:    #0e1110;
    --surface:  #161c1b;
    --surface-2:#212927;
    --stone:    #353f3c;
    --ink:      #e9e4d6;
    --ink-2:    #cbc4b2;
    --ink-3:    #aaa294;
    --ink-4:    #8a8378;
    --accent:   #7cc4d2;
    --accent-bg:#122a2e;
    --water:    #7cc4d2;
    --water-deep:#3d8fa0;
    --water-bg: #122a2e;
    --focus:    #7cc4d2;
    --border:   rgba(233,228,214,.1);
  }
}

/* ── Reset ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1rem + .22vw, 1.17rem);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .15em; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; height: auto; display: block; }

/* ── Focus ──────────────────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ── Layout ─────────────────────────────────────────── */
.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 clamp(1rem, 3vw, 2rem); }
.wide { max-width: 56rem; margin: 0 auto; padding: 0 clamp(1rem, 3vw, 2rem); }

/* ── Topbar ─────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: .5rem;
  height: var(--bar-h);
  padding: 0 clamp(.75rem, 2vw, 1.25rem);
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: .85rem;
  letter-spacing: .02em;
}
.topbar .home { color: var(--ink-3); text-decoration: none; white-space: nowrap; }
.topbar .home:hover { color: var(--ink); }
.topnav { display: flex; gap: .15rem; overflow-x: auto; scrollbar-width: none; }
.topnav::-webkit-scrollbar { display: none; }
.topnav a {
  color: var(--ink-3); text-decoration: none; white-space: nowrap;
  padding: .25rem .5rem; border-radius: 4px;
}
.topnav a:hover { color: var(--ink); background: var(--surface); }
.topnav a[aria-current="true"] { color: var(--ink); font-weight: 600; }
.spacer { flex: 1; }
.chip {
  color: var(--ink-3); text-decoration: none; white-space: nowrap;
  padding: .2rem .6rem; border-radius: 4px;
  font-size: .8rem;
}
.chip:hover { color: var(--ink); background: var(--surface); }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  border: none; background: none; color: var(--ink-3);
  cursor: pointer; padding: 0;
}
.icon-btn:hover { color: var(--ink); background: var(--surface); }
.icon-btn svg { display: block; }
.icon-btn svg[hidden] { display: none; }

/* ── Sections ───────────────────────────────────────── */
section { scroll-margin-top: calc(var(--bar-h) + 1rem); }
.block { padding: var(--gap) 0; }
.block + .block { border-top: 1px solid var(--border); }

/* ── Typography ─────────────────────────────────────── */
h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 1.4rem + 3.5vw, 4.2rem);
  line-height: 1.06;
  font-weight: 400;
  letter-spacing: -.01em;
  color: var(--ink);
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2.2rem);
  line-height: 1.15;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 1rem;
}
h2 .anchor { color: inherit; text-decoration: none; }
h2 .anchor:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.kicker {
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .5rem;
}
.deck {
  font-size: clamp(1.08rem, 1rem + .35vw, 1.28rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 34rem;
}
.lede {
  font-size: 1.08rem;
  color: var(--ink-2);
  margin-bottom: 1.5rem;
}
.prose { max-width: var(--measure); }
.prose p + p { margin-top: 1em; }

/* ── Hero ───────────────────────────────────────────── */
.hero {
  padding: clamp(3rem, 8vw, 7rem) 0 clamp(2rem, 5vw, 4rem);
  text-align: center;
}
.hero-text { margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.hero h1 { margin-bottom: 1rem; }
.hero .deck { margin: 0 auto; }
.hero-fig { max-width: 56rem; margin-left: auto; margin-right: auto; }

/* ── Split layout ───────────────────────────────────── */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}
@media (min-width: 50rem) {
  .split { grid-template-columns: 1fr 1fr; }
}
.split .side { display: flex; flex-direction: column; gap: 1.5rem; }

/* ── Figures ────────────────────────────────────────── */
.fig { margin: 1.5rem 0 0; }
.fig img { border-radius: 6px; }
.fig figcaption {
  font-size: .85rem;
  color: var(--ink-3);
  margin-top: .5rem;
  line-height: 1.45;
}
.fig .cr { font-size: .78rem; display: block; margin-top: .25rem; }
.fig .cr a { color: var(--ink-4); }

/* ── Facts DL ───────────────────────────────────────── */
.facts {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.facts dt {
  font-family: var(--font-display);
  font-size: .85rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: .75rem;
}
.facts dt:first-child { margin-top: 0; }
.facts dd { margin-left: 0; color: var(--ink-2); }

/* ── Lake interaction ───────────────────────────────── */
.lake-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin: 1.5rem auto 0;
  max-width: 56rem;
}
.lake-box svg { display: block; width: 100%; height: auto; }
.svg-hill { fill: var(--stone); }
.svg-rock { fill: var(--stone); }
.svg-tower { fill: var(--ink-2); }
.svg-slit { fill: var(--paper); }
.svg-water { fill: var(--water-deep); }
.lake-controls {
  padding: 1rem clamp(1rem, 3vw, 2rem) 1.25rem;
  border-top: 1px solid var(--border);
}
.lake-controls label {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink-2);
  margin-bottom: .5rem;
}
.lake-controls input[type="range"] {
  width: 100%;
  accent-color: var(--water);
  min-height: 2.75rem;
}
.lake-scale {
  display: flex;
  justify-content: space-between;
  font-size: .8rem;
  color: var(--ink-3);
  margin-top: -.25rem;
}
.lake-status {
  margin-top: .75rem;
  font-size: 1rem;
  color: var(--ink);
  border-left: 3px solid var(--water);
  padding-left: .75rem;
  min-height: 3.2rem;
}
.lake-cap {
  padding: 1rem clamp(1rem, 3vw, 2rem);
  font-size: .85rem;
  color: var(--ink-3);
  border-top: 1px solid var(--border);
}

/* ── Timeline ───────────────────────────────────────── */
.timeline {
  list-style: none;
  padding: 0;
  border-left: 2px solid var(--border);
  margin-left: .5rem;
  margin-top: 1.5rem;
}
.timeline li {
  padding: .75rem 0 .75rem 1.5rem;
  position: relative;
  font-size: .95rem;
  color: var(--ink-2);
}
.timeline li::before {
  content: '';
  position: absolute;
  left: -6px; top: 1rem;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--stone);
  border: 2px solid var(--paper);
}
.timeline .year {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  display: block;
  font-size: 1rem;
}
.timeline .water-event::before { background: var(--water); }
.timeline .water-event .year { color: var(--water); }

/* ── Sources ────────────────────────────────────────── */
.srcs {
  padding: 0;
  list-style: none;
}
.srcs li {
  padding: .5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
  color: var(--ink-2);
}
.srcs li:last-child { border-bottom: none; }
.srcs a { word-break: break-all; }

/* ── Footer ─────────────────────────────────────────── */
.foot {
  padding: 2rem 0;
  text-align: center;
  font-size: .85rem;
  color: var(--ink-4);
  border-top: 1px solid var(--border);
}
.foot a { color: var(--ink-3); }
.foot p + p { margin-top: .25rem; }
.missing { padding-top: 4rem; text-align: center; }

/* ── Rail (desktop reading rail) ────────────────────── */
.rail {
  display: none;
}
@media (min-width: 90rem) {
  .rail {
    display: flex;
    flex-direction: column;
    gap: .15rem;
    position: fixed;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 90;
    font-family: var(--font-display);
    font-size: .72rem;
    letter-spacing: .04em;
  }
  .rail a {
    display: flex; align-items: center; gap: .5rem;
    color: var(--ink-4); text-decoration: none;
    padding: .3rem .5rem;
    border-radius: 4px;
    flex-direction: row-reverse;
  }
  .rail a:hover { color: var(--ink-2); }
  .rail a[aria-current="true"] { color: var(--ink); }
  .rail a[aria-current="true"] i {
    background: var(--accent);
  }
  .rail i {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--stone);
    display: block;
    flex-shrink: 0;
  }
}

/* ── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; }
  html { scroll-behavior: auto; }
}

/* ── Print ──────────────────────────────────────────── */
@media print {
  .topbar, .rail, .icon-btn, .lake-controls { display: none; }
  body { font-size: 11pt; }
  section { break-inside: avoid; }
}