@font-face {
  font-family: "Noto Serif Old Uyghur";
  src: url("../fonts/NotoSerifOldUyghur-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  --ink: #1e2a44;
  --ink-soft: #3d4d6b;
  --jade: #2a5f8a;
  --jade-deep: #163552;
  --ember: #d4783c;
  --ember-soft: #e0a06a;
  --mist: #dfe6f0;
  --stone: #e8edf4;
  --line: rgba(30, 42, 68, 0.14);
  --glow: rgba(42, 95, 138, 0.18);
  --font-display: "Literata", "Georgia", serif;
  --font-body: "Sora", "Segoe UI", sans-serif;
  --font-script: "Noto Serif Old Uyghur", "Noto Serif", serif;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --tx-accent: var(--jade);
  --tx-accent-deep: var(--jade-deep);
  --tx-ink: var(--ink);
  --tx-ink-soft: var(--ink-soft);
  --tx-line: var(--line);
}

/* —— Old Uyghur orientation ——
 * Unicode/Noto: horizontal RTL upright (code chart).
 * vertical-lr+mixed (Phags-pa copy) rotates 90° CW → “ters”.
 * Singles: upright RTL. Vertical runs: sideways-lr (CCW).
 */
.oui-glyph {
  font-family: var(--font-script);
  writing-mode: horizontal-tb;
  direction: rtl;
  unicode-bidi: isolate;
  text-orientation: mixed;
  font-feature-settings: normal;
}

.oui-vert {
  font-family: var(--font-script);
  writing-mode: sideways-lr;
  direction: rtl;
  unicode-bidi: plaintext;
  text-orientation: mixed;
  font-feature-settings: normal;
  letter-spacing: 0;
}



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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.04rem;
  line-height: 1.55;
  background:
    radial-gradient(95% 70% at 8% -8%, #c9d6ea 0%, transparent 52%),
    radial-gradient(80% 55% at 100% 0%, #e8d4c0 0%, transparent 44%),
    radial-gradient(55% 40% at 55% 100%, #b8c8de 0%, transparent 48%),
    linear-gradient(168deg, #e4eaf2 0%, #d8e0ec 42%, #cfd6e4 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 17px,
      rgba(42, 95, 138, 0.03) 17px,
      rgba(42, 95, 138, 0.03) 18px
    );
  z-index: 0;
}

a {
  color: var(--jade-deep);
}

button,
input {
  font: inherit;
}

.wrap {
  width: min(1100px, calc(100% - 2rem));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: min(92vh, 760px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem 0 3.5rem;
  overflow: hidden;
}

.hero-plane {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(115deg, rgba(26, 67, 54, 0.88) 0%, rgba(26, 34, 28, 0.55) 48%, rgba(184, 90, 42, 0.25) 100%),
    radial-gradient(70% 60% at 70% 30%, rgba(213, 224, 218, 0.2), transparent 60%);
}

.silk-mist {
  position: absolute;
  inset: -10% 20% auto -5%;
  height: 70%;
  background: radial-gradient(ellipse, rgba(42, 95, 138, 0.45), transparent 68%);
  animation: mist-drift 14s var(--ease) infinite alternate;
}

.vertical-wash {
  position: absolute;
  right: clamp(4%, 8vw, 12%);
  top: 8%;
  bottom: 12%;
  writing-mode: sideways-lr;
  direction: rtl;
  unicode-bidi: plaintext;
  text-orientation: mixed;
  font-family: var(--font-script);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1.15;
  color: rgba(232, 238, 234, 0.22);
  letter-spacing: 0;
  pointer-events: none;
  animation: column-rise 18s linear infinite;
  white-space: nowrap;
}

@keyframes mist-drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(4%, 6%) scale(1.08); }
}

@keyframes column-rise {
  from { transform: translateY(6%); opacity: 0.55; }
  to { transform: translateY(-4%); opacity: 0.9; }
}

.hero-stack {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.hero-top {
  display: flex;
  justify-content: flex-start;
}

.nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.nav-pills a {
  text-decoration: none;
  color: rgba(232, 238, 234, 0.88);
  border: 1px solid rgba(232, 238, 234, 0.28);
  padding: 0.4rem 0.75rem;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}

.nav-pills a:hover {
  background: rgba(232, 238, 234, 0.12);
  border-color: rgba(232, 238, 234, 0.5);
  transform: translateY(-1px);
}

.hero-copy {
  max-width: 36rem;
  color: #f2f6f3;
  animation: hero-in 0.9s var(--ease) both;
}

@keyframes hero-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.brand {
  font-family: var(--font-display);
  font-weight: 750;
  font-size: clamp(3rem, 9vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin: 0 0 0.85rem;
}

.brand span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ember-soft);
  margin-bottom: 0.65rem;
}

.lede {
  margin: 0 0 1.4rem;
  font-size: 1.08rem;
  line-height: 1.55;
  color: rgba(242, 246, 243, 0.88);
  max-width: 32rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-decoration: none;
  border: 1px solid transparent;
  padding: 0.7rem 1.15rem;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.15s, background 0.2s, border-color 0.2s, color 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--ember);
  color: #fff8f2;
  border-color: var(--ember);
}

.btn-primary:hover {
  background: #a04d22;
}

.btn-ghost {
  background: transparent;
  color: #f2f6f3;
  border-color: rgba(242, 246, 243, 0.45);
}

.btn-quiet {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  padding: 0.45rem 0.8rem;
  font-size: 0.9rem;
}

/* —— Sections —— */
section {
  padding: 3.5rem 0 2.5rem;
  position: relative;
  z-index: 1;
}

.section-head {
  margin-bottom: 1.6rem;
  max-width: 42rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.45rem);
  margin: 0 0 0.45rem;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--ink-soft);
}

.path-rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.55rem;
  margin-bottom: 1.1rem;
}

.path-step {
  appearance: none;
  border: 1px solid var(--line);
  background: color-mix(in srgb, #fff 55%, transparent);
  text-align: left;
  padding: 0.75rem 0.9rem;
  display: flex;
  gap: 0.7rem;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.15s, box-shadow 0.2s;
}

.path-step:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--jade) 45%, var(--line));
}

.path-step[aria-current="step"] {
  border-color: var(--jade);
  box-shadow: inset 3px 0 0 var(--jade);
}

.path-num {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--jade);
  font-size: 1.25rem;
}

.path-body {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.path-body strong {
  font-size: 0.98rem;
}

.path-body small {
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.filters,
.practice-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.chip {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-soft);
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.chip[aria-pressed="true"] {
  background: var(--jade);
  color: #fff;
  border-color: var(--jade);
}

.path-hint {
  min-height: 1.3em;
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0 0 1rem;
}

.learn-layout {
  display: grid;
  grid-template-columns: minmax(0, 13rem) minmax(0, 1fr);
  gap: 1.1rem;
  align-items: start;
}

@media (max-width: 760px) {
  .learn-layout {
    grid-template-columns: 1fr;
  }
}

.letter-rail {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(3.6rem, 1fr));
  gap: 0.35rem;
  max-height: 28rem;
  overflow: auto;
  padding: 0.2rem;
}

.letter-cell {
  appearance: none;
  border: 1px solid var(--line);
  background: color-mix(in srgb, #fff 60%, transparent);
  padding: 0.4rem 0.25rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  transition: border-color 0.15s, transform 0.15s;
}

.letter-cell:hover {
  transform: translateY(-1px);
  border-color: var(--jade);
}

.letter-cell[aria-current="true"] {
  border-color: var(--jade-deep);
  background: color-mix(in srgb, var(--jade) 12%, #fff);
}

.letter-cell.is-learned {
  box-shadow: inset 0 -2px 0 var(--jade);
}

.letter-cell.is-weak .meta {
  color: var(--ember);
}

.letter-cell .glyph {
  font-family: var(--font-script);
  font-size: 1.7rem;
  line-height: 1;
  writing-mode: horizontal-tb;
  direction: rtl;
  unicode-bidi: isolate;
  height: auto;
  min-height: 1.7rem;
}

.letter-cell .meta {
  font-size: 0.68rem;
  color: var(--ink-soft);
}

.letter-stage {
  border: 1px solid var(--line);
  background: color-mix(in srgb, #fff 68%, transparent);
  padding: 1.35rem 1.4rem 1.5rem;
  min-height: 18rem;
  animation: stage-in 0.45s var(--ease) both;
}

@keyframes stage-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.stage-top {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.stage-glyph {
  font-family: var(--font-script);
  font-size: clamp(3.8rem, 10vw, 5.5rem);
  writing-mode: horizontal-tb;
  direction: rtl;
  unicode-bidi: isolate;
  text-orientation: mixed;
  line-height: 1;
  color: var(--jade-deep);
  min-height: 0;
  padding: 0.35rem 0.6rem;
  background: color-mix(in srgb, var(--jade) 8%, transparent);
}

.stage-meta h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.65rem;
}

.stage-meta dl {
  margin: 0;
  display: grid;
  gap: 0.35rem;
}

.stage-meta dt {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.stage-meta dd {
  margin: 0;
  font-weight: 600;
}

.stage-note,
.stage-forms {
  margin: 0.65rem 0 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.stage-alt {
  margin-top: 0.75rem;
  font-family: var(--font-script);
  font-size: 2rem;
  writing-mode: horizontal-tb;
  direction: rtl;
  unicode-bidi: isolate;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.stage-alt small {
  writing-mode: horizontal-tb;
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.stage-join {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}

.stage-join dt {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

.stage-join dd {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.join-glyphs {
  font-family: var(--font-script);
  writing-mode: sideways-lr;
  direction: rtl;
  unicode-bidi: plaintext;
  font-size: 2.2rem;
  letter-spacing: 0;
  font-feature-settings: normal;
  display: inline-block;
  min-height: 3.5rem;
}

.join-note {
  color: var(--ink-soft);
  font-size: 0.92rem;
  max-width: 18rem;
}

.stage-nav {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.1rem;
}

/* —— Transcription host tweaks —— */
#transkripsiyon .tx-module {
  --font-script: "Noto Serif Old Uyghur", sans-serif;
  --font-mani: "Noto Serif Old Uyghur", sans-serif;
}

#transkripsiyon .tx-output.is-vertical {
  background:
    linear-gradient(90deg, transparent 0%, color-mix(in srgb, var(--jade) 6%, transparent) 100%),
    color-mix(in srgb, var(--jade) 7%, transparent);
  border-color: color-mix(in srgb, var(--jade) 35%, var(--line));
}

/* —— Practice —— */
.progress-banner {
  margin-top: -1rem;
  margin-bottom: 0.5rem;
}

.progress-banner-inner {
  border: 1px solid var(--line);
  background: color-mix(in srgb, #fff 55%, transparent);
  padding: 0.85rem 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
}

.progress-banner-inner p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.mastery-strip {
  margin-bottom: 0.9rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.panel {
  display: none;
  border: 1px solid var(--line);
  background: color-mix(in srgb, #fff 62%, transparent);
  padding: 1.25rem;
  min-height: 14rem;
}

.panel.active {
  display: block;
  animation: stage-in 0.4s var(--ease) both;
}

.prompt-block {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.prompt-glyph {
  font-family: var(--font-script);
  font-size: 4rem;
  writing-mode: horizontal-tb;
  direction: rtl;
  unicode-bidi: isolate;
  color: var(--jade-deep);
  min-height: 0;
  line-height: 1;
}

.prompt-q {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.choice {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.choice:hover {
  border-color: var(--jade);
}

.choice.is-correct {
  background: color-mix(in srgb, var(--jade) 18%, #fff);
  border-color: var(--jade);
}

.choice.is-wrong {
  background: color-mix(in srgb, var(--ember) 16%, #fff);
  border-color: var(--ember);
}

.feedback {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
  min-height: 1.4em;
}

.match-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 640px) {
  .match-grid {
    grid-template-columns: 1fr;
  }
}

.match-col {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.match-item {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.55rem 0.7rem;
  text-align: left;
  cursor: pointer;
}

.match-item .g {
  font-family: var(--font-script);
  writing-mode: horizontal-tb;
  direction: rtl;
  unicode-bidi: isolate;
  font-size: 1.5rem;
  display: inline-block;
  height: auto;
  vertical-align: middle;
  margin-right: 0.4rem;
}

.match-item.is-selected {
  border-color: var(--jade);
  background: color-mix(in srgb, var(--jade) 10%, #fff);
}

.match-item.is-done {
  opacity: 0.45;
  pointer-events: none;
}

/* —— Bilgi —— */
.aside-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}

.aside-strip h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.aside-strip p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.vert-sample {
  font-family: var(--font-script);
  font-size: 3rem;
  writing-mode: sideways-lr;
  direction: rtl;
  unicode-bidi: plaintext;
  text-orientation: mixed;
  color: var(--jade-deep);
  margin: 0.4rem 0 !important;
  font-feature-settings: normal;
  min-height: 4.5rem;
  letter-spacing: 0;
}

.muted-note {
  font-size: 0.85rem !important;
}

.site-foot {
  padding: 2rem 0 3rem;
  position: relative;
  z-index: 1;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.site-foot a {
  color: var(--jade);
}

@media (max-width: 640px) {
  .hero {
    min-height: 88vh;
    padding-bottom: 2.5rem;
  }
  .vertical-wash {
    opacity: 0.55;
    right: 2%;
  }
}