/* ============================================================
   styles.css — Хангыль (Тамара не помидор)
   «Тихая редакционная» система: контент на первом месте,
   крупная уверенная типографика (Golos Text), много воздуха,
   тонкие линии вместо теней на всём подряд. Один бренд-акцент
   (жёлтый), красный — только для смысла (чтение, ошибки, актив).
   Движение — только функциональное: одно появление при загрузке
   и обратная связь на действие. Никаких «всплытий» на ховере,
   градиентных пятен, зерна и появлений по скроллу.
   Цвета — только через переменные. Раскладка — обычный CSS.
   ============================================================ */

/* ============================================================
   1. ТОКЕНЫ
   ============================================================ */
:root{
  /* нейтральные — мягкий, не плоско-белый */
  --bg:#fbfbfd;
  --bg-soft:#f3f3f6;
  --surface:#ffffff;
  --surface-2:#f4f4f7;
  --surface-3:#ebebf0;
  --text:#16161a;
  --text-soft:#45454e;
  --muted:#86868b;
  --line:#e7e7ec;
  --line-strong:#d8d8df;

  /* бренд — солнечный жёлтый (≈ systemYellow), единственный акцент */
  --brand:#ffd60a;
  --brand-2:#f3c200;
  --brand-ink:#1c1c1f;

  /* смысловой акцент — красный 🍅 (чтение, ошибки, актив) */
  --accent:#e8392e;
  --accent-2:#c92c22;
  --accent-soft:#fdeceb;

  /* статусы */
  --good:#1f9d57; --good-soft:#e6f6ec;
  --bad:#e8392e;  --bad-soft:#fdeceb;

  /* типографика — один характерный гротеск на весь сайт */
  --font-display:'Golos Text',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --font-ui:'Golos Text',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --font-ko:'Noto Sans KR','Apple SD Gothic Neo',var(--font-ui);

  /* геометрия — умеренные радиусы, без «алюзий на алюзий» */
  --radius-xs:8px;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --radius-xl:28px;
  --radius-btn:12px;
  --radius-pill:999px;

  /* тени — редкие и честные: только для того, что реально парит */
  --shadow-sm:0 1px 2px rgba(20,20,43,.06);
  --shadow:0 6px 24px rgba(20,20,43,.08);
  --shadow-lg:0 20px 50px rgba(16,16,42,.18),0 6px 16px rgba(16,16,42,.08);

  /* стекло шапки */
  --glass:color-mix(in srgb,var(--bg) 72%,transparent);

  /* фокус */
  --focus:color-mix(in srgb,var(--accent) 70%,transparent);

  /* движение */
  --ease:cubic-bezier(.4,0,.2,1);
  --ease-out:cubic-bezier(.22,1,.36,1);
  --press:cubic-bezier(.3,0,.2,1);
  --dur:.18s;
  --dur-lg:.5s;

  --header-h:60px;
}

[data-theme="dark"]{
  --bg:#0a0a0c;
  --bg-soft:#121214;
  --surface:#19191d;
  --surface-2:#222227;
  --surface-3:#313138;
  --text:#f4f4f7;
  --text-soft:#c7c7cf;
  --muted:#8a8a93;
  --line:#28282e;
  --line-strong:#3a3a42;

  --brand:#ffd60a;
  --brand-2:#ffcf2e;
  --brand-ink:#1c1c1f;

  --accent:#ff6259;
  --accent-2:#ff847d;
  --accent-soft:#2a1513;

  --good:#37c873; --good-soft:#10261a;
  --bad:#ff6259;  --bad-soft:#2a1513;

  --shadow-sm:0 1px 2px rgba(0,0,0,.5);
  --shadow:0 6px 24px rgba(0,0,0,.5);
  --shadow-lg:0 24px 60px rgba(0,0,0,.7),0 8px 20px rgba(0,0,0,.5);

  --glass:color-mix(in srgb,var(--bg) 66%,transparent);
}

/* ============================================================
   2. БАЗА / СБРОС
   ============================================================ */
*{box-sizing:border-box;}
html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 12px);
  -webkit-text-size-adjust:100%;text-size-adjust:100%;
}
body{
  margin:0;
  overflow-x:clip;                 /* страховка от горизонтального скролла */
  font-family:var(--font-ui);
  font-size:17px;
  background:var(--bg);
  color:var(--text);
  line-height:1.5;
  letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  font-optical-sizing:auto;
  -webkit-tap-highlight-color:transparent;
  transition:background-color .4s var(--ease),color .4s var(--ease);
}
.ko{font-family:var(--font-ko);letter-spacing:0;}
a{color:inherit;text-decoration:none;}
img,svg{display:block;}
button{font-family:inherit;}
p{text-wrap:pretty;}
::selection{background:color-mix(in srgb,var(--brand) 60%,transparent);color:var(--brand-ink);}

/* ============================================================
   3. РАСКЛАДКА И ТИПОГРАФИКА
   ============================================================ */
.wrap{max-width:74rem;margin:0 auto;padding:0 1.25rem;}
.wrap.narrow{max-width:46rem;}
@media(min-width:640px){.wrap{padding:0 1.75rem;}}
.section{padding:4.5rem 0;}
.section.alt{background:var(--bg-soft);}
@media(min-width:768px){.section{padding:7rem 0;}}
section{scroll-margin-top:calc(var(--header-h) + 12px);}

.eyebrow{display:block;font-family:var(--font-ui);font-weight:600;
  font-size:.86rem;letter-spacing:0;color:var(--muted);margin-bottom:.7rem;}
.eyebrow .ko{color:var(--text-soft);}

.h1{font-family:var(--font-display);font-size:clamp(2.4rem,5.5vw + .6rem,5rem);font-weight:700;
  letter-spacing:-.035em;line-height:1.03;margin:0;text-wrap:balance;}
.h2{font-family:var(--font-display);font-size:clamp(1.85rem,3vw + .6rem,3rem);font-weight:700;
  letter-spacing:-.03em;line-height:1.08;margin:0;text-wrap:balance;}
.lead{color:var(--text-soft);font-size:clamp(1.1rem,.7vw + .95rem,1.32rem);line-height:1.55;
  letter-spacing:-.012em;text-wrap:pretty;}
.muted{color:var(--muted);}
.section-head{max-width:44rem;margin-bottom:2.6rem;}
.section-head .lead{margin-top:.9rem;}

/* ============================================================
   4. ШАПКА
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--glass);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid color-mix(in srgb,var(--line) 85%,transparent);
}
.header-in{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:1rem;}
.brand{display:flex;align-items:center;gap:.6rem;border-radius:var(--radius-sm);
  transition:opacity var(--dur) var(--ease);}
.brand:hover{opacity:.72;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:10px;background:var(--brand);color:var(--brand-ink);font-weight:800;font-size:1.12rem;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-name{font-weight:700;font-size:1.05rem;letter-spacing:-.02em;}
.brand-team{font-size:.7rem;color:var(--muted);font-weight:500;}

.nav{display:none;align-items:center;gap:.15rem;}
@media(min-width:900px){.nav{display:flex;}}
.nav-link{font-size:.95rem;font-weight:500;color:var(--text-soft);padding:.5rem .85rem;border-radius:var(--radius-sm);
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease);}
.nav-link:hover{color:var(--text);background:color-mix(in srgb,var(--text) 6%,transparent);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active{background:color-mix(in srgb,var(--text) 7%,transparent);}

.header-actions{display:flex;align-items:center;gap:.4rem;}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 70%,transparent);color:var(--text);
  cursor:pointer;font-size:1.05rem;
  transition:transform .12s var(--press),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.icon-btn:hover{background:var(--surface-2);border-color:var(--line-strong);}
.icon-btn:active{transform:scale(.9);}
.menu-btn{display:inline-flex;}
@media(min-width:900px){.menu-btn{display:none;}}

/* мобильное меню — сплошная панель-оверлей под шапкой */
.mobile-menu{
  display:none;position:absolute;top:100%;left:0;right:0;
  background:var(--surface);border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-lg);
}
.mobile-menu.open{display:block;animation:menuIn .22s var(--ease-out);}
.mobile-menu .wrap{padding-top:.4rem;padding-bottom:.6rem;}
.mob-link{display:flex;align-items:center;min-height:52px;padding:.4rem .25rem;
  border-bottom:1px solid var(--line);color:var(--text-soft);font-weight:500;font-size:1.06rem;
  transition:color var(--dur) var(--ease);}
.mob-link:last-child{border-bottom:none;}
.mob-link:hover{color:var(--text);}
.mob-link.active{color:var(--text);font-weight:700;}
.mob-link.active::before{content:'';width:4px;height:1.1em;border-radius:var(--radius-pill);
  background:var(--brand);margin-right:.6rem;}
.mob-link:not(.active){padding-left:calc(.25rem + 4px + .6rem);}

/* ============================================================
   5. КНОПКИ
   ============================================================ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font-ui);
  font-weight:600;font-size:1rem;line-height:1;padding:.8rem 1.3rem;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;letter-spacing:-.01em;min-height:44px;
  transition:transform .14s var(--press),background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),filter var(--dur) var(--ease),color var(--dur) var(--ease);}
.btn:active{transform:scale(.97);}
.btn-sm{padding:.55rem .95rem;font-size:.9rem;min-height:38px;}
.btn-lg{padding:.95rem 1.6rem;font-size:1.06rem;min-height:50px;}

.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{background:var(--brand-2);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-2);}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:var(--surface-2);border-color:var(--muted);}

.btn-mini{font-family:var(--font-ui);font-size:.82rem;font-weight:600;color:var(--accent);
  background:transparent;border:1px solid color-mix(in srgb,var(--accent) 22%,var(--line));
  padding:.4rem .8rem;border-radius:var(--radius-sm);cursor:pointer;min-height:36px;
  display:inline-flex;align-items:center;gap:.35rem;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform .12s var(--press);}
.btn-mini:hover{background:var(--accent-soft);}
.btn-mini:active{transform:scale(.94);}

.chip{display:inline-block;background:var(--surface-2);color:var(--text-soft);font-weight:600;font-size:.78rem;
  padding:.34rem .75rem;border-radius:var(--radius-sm);border:1px solid var(--line);}

/* ============================================================
   6. HERO — редакционный, крупная типографика, чистый фон
   ============================================================ */
.hero{position:relative;border-bottom:1px solid var(--line);background:var(--bg);}
.hero-inner{position:relative;max-width:74rem;margin:0 auto;text-align:left;padding:4rem 1.25rem 4.5rem;}
@media(min-width:640px){.hero-inner{padding:4.5rem 1.75rem 5rem;}}
@media(min-width:768px){.hero-inner{padding:6.5rem 1.75rem 6.5rem;}}
.hero .h1{max-width:16ch;}
.hero-lead{margin:1.5rem 0 0;max-width:42ch;}
.hero-cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2.2rem;}

.hero-stats{display:flex;flex-wrap:wrap;gap:1.6rem 2.4rem;margin-top:3.2rem;}
.hero-stats > div{display:flex;flex-direction:column;}
.stat-num{font-family:var(--font-display);font-size:1.7rem;font-weight:700;letter-spacing:-.03em;line-height:1;
  font-variant-numeric:tabular-nums;}
.stat-lbl{font-size:.86rem;color:var(--muted);margin-top:.4rem;}

@media (prefers-reduced-motion:no-preference){
  .hero-inner > *{animation:revealUp .7s var(--ease-out) both;}
  .hero-inner > *:nth-child(1){animation-delay:.02s;}
  .hero-inner > *:nth-child(2){animation-delay:.08s;}
  .hero-inner > *:nth-child(3){animation-delay:.14s;}
  .hero-inner > *:nth-child(4){animation-delay:.20s;}
}

/* ============================================================
   7. ШАГИ ПУТИ — редакционная нумерованная последовательность
   ============================================================ */
.steps{display:grid;gap:0;}
@media(min-width:768px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{position:relative;display:block;padding:1.6rem 1.4rem 1.6rem 0;
  border-top:2px solid var(--text);color:inherit;
  transition:border-color var(--dur) var(--ease);}
@media(max-width:767px){.step{border-top:1px solid var(--line);padding:1.3rem 0;}
  .step:first-child{border-top:2px solid var(--text);}}
@media(min-width:768px){.step + .step{padding-left:1.4rem;}
  .step:not(:first-child){border-left:1px solid var(--line);}}
.step:hover{border-top-color:var(--accent);}
.step-num{font-family:var(--font-display);font-size:.92rem;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;margin-bottom:.7rem;}
.step h3{font-size:1.12rem;margin:.1rem 0 .35rem;font-weight:600;letter-spacing:-.015em;}
.step p{font-size:.94rem;color:var(--text-soft);margin:0;line-height:1.55;}
.step .ko{position:absolute;top:1.4rem;right:0;font-size:1.7rem;font-weight:700;line-height:1;
  color:color-mix(in srgb,var(--text) 16%,transparent);}
@media(max-width:767px){.step .ko{top:1.2rem;}}

/* ============================================================
   8. КАРТОЧКИ ИНСТРУМЕНТОВ — спокойные, без иконок-плашек
   ============================================================ */
.feature-grid{display:grid;gap:1rem;grid-template-columns:1fr;}
@media(min-width:640px){.feature-grid{grid-template-columns:1fr 1fr;}}

.feature-card{display:flex;flex-direction:column;position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:1.7rem;color:inherit;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);}
.feature-card:hover{border-color:var(--line-strong);background:var(--surface-2);}
.feature-card .fc-glyph{font-family:var(--font-ko);font-size:2.1rem;font-weight:700;line-height:1;
  color:var(--text);margin-bottom:1rem;}
.feature-card h3{margin:0 0 .45rem;font-size:1.22rem;font-weight:600;letter-spacing:-.018em;}
.feature-card p{color:var(--text-soft);margin:0;line-height:1.6;font-size:.98rem;}
.feature-card .more{color:var(--accent);font-weight:600;font-size:.92rem;margin-top:1.1rem;
  display:inline-flex;align-items:center;gap:.35rem;}

/* универсальная карточка (about и пр.) */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.7rem;}
.card h3{margin:.2rem 0 .5rem;font-size:1.18rem;font-weight:600;letter-spacing:-.015em;}
.card p{color:var(--text-soft);margin:.3rem 0;line-height:1.6;}
.card-ico{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  font-size:1.4rem;background:var(--surface-2);border:1px solid var(--line);color:var(--text);margin-bottom:.9rem;}
.card-ico svg{width:22px;height:22px;}

/* ============================================================
   9. СЕТКА АЛФАВИТА
   ============================================================ */
.group-title{font-family:var(--font-display);font-size:1.18rem;font-weight:600;letter-spacing:-.015em;
  margin:2rem 0 .9rem;display:flex;align-items:baseline;gap:.6rem;flex-wrap:wrap;}
.group-title span{font-family:var(--font-ui);font-size:.82rem;font-weight:500;color:var(--muted);}
.jamo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.55rem;}
@media(min-width:480px){.jamo-grid{grid-template-columns:repeat(5,1fr);}}
@media(min-width:768px){.jamo-grid{grid-template-columns:repeat(7,1fr);gap:.7rem;}}
.jamo-card{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.2rem;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:.95rem .3rem;cursor:pointer;
  min-height:84px;
  transition:transform .14s var(--press),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);}
.jamo-card:hover{border-color:var(--line-strong);background:var(--surface-2);}
.jamo-card:active{transform:scale(.95);}
.jamo-glyph{font-size:2rem;font-weight:700;line-height:1.1;}
.jamo-cyr{font-size:.8rem;color:var(--muted);font-weight:500;}

/* ============================================================
   10. ТАБЫ (segmented control; на мобильном — прокрутка)
   ============================================================ */
.tabs{display:flex;gap:2px;background:var(--surface-2);padding:4px;border-radius:var(--radius);
  border:1px solid var(--line);max-width:100%;}
.tab{font-family:var(--font-ui);font-weight:600;font-size:.92rem;color:var(--text-soft);padding:.6rem 1rem;
  border-radius:calc(var(--radius) - 5px);cursor:pointer;border:none;background:transparent;letter-spacing:-.01em;
  white-space:nowrap;flex:1 1 auto;min-height:40px;
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),transform .12s var(--press);}
.tab:hover{color:var(--text);}
.tab:active{transform:scale(.97);}
.tab.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm);}
.tabpanel{display:none;}
.tabpanel.active{display:block;animation:fade .3s var(--ease-out);}
@media(max-width:640px){
  .tabs{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
  .tabs::-webkit-scrollbar{display:none;}
  .tab{flex:0 0 auto;}
}

/* ============================================================
   11. МОДАЛКА
   ============================================================ */
.modal{display:none;position:fixed;inset:0;background:color-mix(in srgb,#000 50%,transparent);
  -webkit-backdrop-filter:blur(6px) saturate(120%);backdrop-filter:blur(6px) saturate(120%);
  z-index:80;align-items:center;justify-content:center;padding:1rem;}
.modal.open{display:flex;animation:fade .2s var(--ease-out);}
.modal-card{position:relative;background:var(--surface);border-radius:var(--radius-xl);max-width:460px;width:100%;
  padding:1.9rem;max-height:calc(100dvh - 2rem);overflow:auto;box-shadow:var(--shadow-lg);border:1px solid var(--line);
  animation:modalIn .4s var(--ease-out);}
.modal-close{position:absolute;top:1rem;right:1rem;width:36px;height:36px;border-radius:50%;border:none;
  background:var(--surface-2);color:var(--text-soft);font-size:.95rem;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color var(--dur) var(--ease),transform .12s var(--press);}
.modal-close:hover{background:var(--surface-3);}
.modal-close:active{transform:scale(.9);}
.modal-head{display:flex;align-items:center;gap:1.2rem;}
.modal-glyph{font-size:4.4rem;line-height:1;font-weight:700;}
.modal-cyr{font-size:1.6rem;font-weight:700;color:var(--accent);letter-spacing:-.01em;}
.modal-name{color:var(--muted);margin-top:.2rem;font-size:.95rem;}
.modal-ipa{color:var(--muted);font-size:.85rem;margin-top:.15rem;}
.modal-desc{color:var(--text-soft);line-height:1.6;margin:1rem 0 0;}
.modal-section{margin-top:1.6rem;}
.modal-section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:.8rem;}
.modal-section-head h4,h4.modal-section-head{font-size:.76rem;font-weight:700;margin:0;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);}
.parts-row{display:flex;gap:1.2rem;justify-content:center;flex-wrap:wrap;}
.part-cell{text-align:center;}
.part-cyr{font-weight:700;color:var(--accent);margin-top:.35rem;}
.part-label{font-size:.85rem;color:var(--muted);}
.part-glyph{font-size:3rem;}
.audio-btn{display:inline-flex;align-items:center;gap:.4rem;}

/* ============================================================
   12. ДИАГРАММЫ ШТРИХОВ
   ============================================================ */
.diagram{aspect-ratio:1;background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:6px;}
.diagram.sm{width:104px;} .diagram.md{width:148px;} .diagram.lg{width:200px;max-width:62vw;}
.stroke-svg{width:100%;height:100%;display:block;}
.stroke-svg .grid line{stroke:var(--line-strong);stroke-width:1;stroke-dasharray:3 4;}
.stroke-svg path.stroke{fill:none;stroke:var(--text);stroke-width:7;stroke-linecap:round;stroke-linejoin:round;}
.stroke-svg .stroke-num{transition:opacity .2s;}
.stroke-svg .stroke-num circle{fill:var(--accent);}
.stroke-svg .stroke-num text{fill:#fff;font-size:10px;font-weight:700;font-family:var(--font-ui);}

/* ============================================================
   13. КОНСТРУКТОР СЛОГОВ
   ============================================================ */
.builder{display:grid;gap:1.4rem;margin-top:2rem;}
@media(min-width:820px){.builder{grid-template-columns:320px 1fr;align-items:start;}}
.builder-output{text-align:center;}
@media(min-width:820px){.builder-output{position:sticky;top:calc(var(--header-h) + 16px);}}
#syl-output{font-family:var(--font-ko);font-size:clamp(5rem,18vw,7rem);line-height:1;font-weight:700;}
.syl-cyr{font-size:1.6rem;font-weight:700;color:var(--accent);margin-top:.3rem;letter-spacing:-.01em;}
.syl-breakdown{display:flex;align-items:center;justify-content:center;gap:.4rem;flex-wrap:wrap;margin:1.1rem 0;color:var(--text-soft);}
.syl-breakdown .bd-jamo{font-size:1.5rem;font-weight:700;}
.syl-breakdown .bd-cyr{color:var(--muted);font-size:.78rem;}
.syl-breakdown .bd-plus{color:var(--muted);font-weight:700;}
.builder-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem;}
.builder-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:.75rem;min-width:0;}
.col-head{font-size:.78rem;font-weight:700;text-align:center;color:var(--text-soft);margin-bottom:.6rem;line-height:1.25;}
.col-head .ko{color:var(--muted);font-weight:500;}
.scroll-col{display:grid;grid-template-columns:repeat(2,1fr);gap:.4rem;max-height:330px;overflow:auto;padding-right:.2rem;min-width:0;}
.syl-btn{font-family:var(--font-ko);font-size:1.05rem;font-weight:600;padding:.5rem 0;min-width:0;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);cursor:pointer;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform .12s var(--press);}
.syl-btn:hover{border-color:var(--line-strong);background:var(--surface-2);}
.syl-btn:active{transform:scale(.93);}
.syl-btn.active{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);font-weight:700;}
.note{font-size:.88rem;color:var(--muted);margin-top:1.1rem;background:var(--bg-soft);border:1px solid var(--line);
  border-radius:var(--radius);padding:.85rem 1.05rem;line-height:1.55;}

.examples-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.7rem;}
@media(min-width:640px){.examples-grid{grid-template-columns:repeat(4,1fr);}}
.example-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.1rem;text-align:center;cursor:pointer;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease),transform .12s var(--press);}
.example-card:hover{border-color:var(--line-strong);background:var(--surface-2);}
.example-card:active{transform:scale(.97);}
.ex-ko{font-family:var(--font-ko);font-size:1.7rem;font-weight:700;}
.ex-cyr{color:var(--accent);font-weight:600;margin-top:.2rem;}
.ex-ru{color:var(--muted);font-size:.85rem;}

/* ============================================================
   14. ПРАКТИКА
   ============================================================ */
.practice-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.9rem;
  box-shadow:var(--shadow-sm);text-align:center;margin-top:1.5rem;}
.pc-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.1rem;gap:.6rem;}
.pc-q{font-size:.95rem;color:var(--text-soft);font-weight:500;text-align:left;}
.pc-score{font-weight:700;background:var(--surface-2);border:1px solid var(--line);padding:.32rem .8rem;border-radius:var(--radius-pill);font-size:.9rem;font-variant-numeric:tabular-nums;}
.pc-prompt{font-size:clamp(3.2rem,14vw,4.5rem);font-weight:700;line-height:1.1;min-height:4.5rem;display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap;}
.pc-prompt .ko{font-family:var(--font-ko);}
.opts{display:grid;grid-template-columns:repeat(2,1fr);gap:.65rem;margin:1.1rem 0;}
.opt{font-size:1.15rem;font-weight:600;padding:.95rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--text);
  cursor:pointer;min-height:52px;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform .12s var(--press),color var(--dur) var(--ease);}
.opt.ko{font-family:var(--font-ko);font-size:1.8rem;}
.opt:hover:not(:disabled){border-color:var(--line-strong);background:var(--surface-2);}
.opt:active:not(:disabled){transform:scale(.97);}
.opt:disabled{cursor:default;}
.opt.correct{background:var(--good-soft);border-color:var(--good);color:var(--good);animation:pop .35s var(--ease-out);}
.opt.wrong{background:var(--bad-soft);border-color:var(--bad);color:var(--bad);animation:shake .4s var(--ease);}
.feedback{min-height:1.5rem;font-weight:600;margin-bottom:.6rem;}
.feedback.ok{color:var(--good);} .feedback.no{color:var(--bad);}

/* флешкарты */
.flash{perspective:1200px;margin:1.5rem auto;max-width:340px;}
.flash-inner{position:relative;width:100%;aspect-ratio:4/3;transition:transform .55s var(--ease-out);transform-style:preserve-3d;cursor:pointer;}
.flash.flipped .flash-inner{transform:rotateY(180deg);}
.flash-face{position:absolute;inset:0;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);}
.flash-front .ko{font-size:6rem;font-weight:700;line-height:1;}
.flash-back{transform:rotateY(180deg);background:var(--surface-2);}
.flash-back .fb-cyr{font-size:2.6rem;font-weight:700;color:var(--accent);letter-spacing:-.01em;}
.flash-back .fb-name{color:var(--muted);margin-top:.4rem;}
.flash-hint{color:var(--muted);font-size:.86rem;text-align:center;margin-top:.7rem;}
.flash-nav{display:flex;justify-content:center;gap:.55rem;margin-top:1rem;flex-wrap:wrap;}

/* клавиатура — ряды всегда вмещаются по ширине */
.typing-target{font-family:var(--font-ko);font-size:clamp(2.2rem,9vw,3rem);font-weight:700;text-align:center;}
.typing-target .done{color:var(--good);}
.typing-target .rest{color:var(--muted);}
.typing-input{min-height:3.4rem;font-family:var(--font-ko);font-size:clamp(1.8rem,7vw,2.4rem);font-weight:700;
  border:2px dashed var(--line-strong);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin:1rem 0;padding:.4rem;
  background:var(--bg-soft);}
.typing-meta{color:var(--muted);font-size:.9rem;}
.kbd{display:flex;flex-direction:column;gap:6px;margin-top:1rem;max-width:520px;margin-left:auto;margin-right:auto;}
.kbd-row{display:flex;gap:6px;}
.key{flex:1 1 0;min-width:0;height:48px;padding:0 .2rem;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-ko);font-weight:600;font-size:clamp(.9rem,3.6vw,1.1rem);
  transition:background-color .1s var(--ease),border-color .1s var(--ease),transform .08s var(--ease);}
.key:hover{background:var(--surface-2);}
.key:active,.key.press{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);transform:scale(.92);}
.key.hint{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft);}
.key.wide{flex:1.7 1 0;font-size:.9rem;}

/* пропись */
.trace-letters{display:flex;flex-wrap:wrap;gap:.45rem;justify-content:center;margin-top:1.3rem;}
.trace-letter{font-family:var(--font-ko);font-size:1.15rem;font-weight:600;width:46px;height:46px;
  border:1px solid var(--line);border-radius:11px;background:var(--surface);color:var(--text);cursor:pointer;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform .12s var(--press);}
.trace-letter:hover{border-color:var(--line-strong);background:var(--surface-2);}
.trace-letter:active{transform:scale(.92);}
.trace-letter.active{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);font-weight:700;}
.trace-stage{position:relative;width:100%;max-width:340px;aspect-ratio:1;margin:1.3rem auto .6rem;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:50% 50%;background-position:center;}
.trace-target{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:clamp(7rem,42vw,13rem);color:color-mix(in srgb,var(--text) 9%,transparent);user-select:none;pointer-events:none;line-height:1;}
.trace-canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:crosshair;}

/* ============================================================
   15. УРОКИ
   ============================================================ */
.progress-wrap{display:flex;align-items:center;gap:1rem;margin-top:1.8rem;}
.progress{flex:1;height:10px;background:var(--surface-3);border-radius:var(--radius-pill);overflow:hidden;}
.progress > i{display:block;height:100%;border-radius:var(--radius-pill);background:var(--brand);transition:width .6s var(--ease-out);}
.progress-num{font-weight:700;font-size:.9rem;white-space:nowrap;font-variant-numeric:tabular-nums;}
.lesson-list{display:grid;gap:.85rem;margin-top:1.8rem;}
@media(min-width:640px){.lesson-list{grid-template-columns:repeat(2,1fr);}}
.lesson-card{display:flex;align-items:center;gap:1rem;text-align:left;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:1.15rem 1.25rem;cursor:pointer;width:100%;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease),transform .12s var(--press);}
.lesson-card:hover{border-color:var(--line-strong);background:var(--surface-2);}
.lesson-card:active{transform:scale(.995);}
.lesson-num{flex:none;width:46px;height:46px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;}
.lesson-card.done .lesson-num{background:var(--good-soft);border-color:transparent;color:var(--good);}
.lesson-info{flex:1;min-width:0;}
.lesson-info h3{margin:0;font-size:1.04rem;font-weight:600;letter-spacing:-.012em;}
.lesson-info p{margin:.15rem 0 0;font-size:.85rem;color:var(--muted);font-family:var(--font-ko);}
.lesson-check{flex:none;color:var(--good);font-weight:700;}
.lesson-detail{margin-top:1.5rem;}
.lesson-intro{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem 1.4rem;color:var(--text-soft);line-height:1.65;}
.lesson-intro .ko{color:var(--text);font-weight:700;}
.back-link{display:inline-flex;align-items:center;gap:.45rem;font-weight:600;color:var(--accent);cursor:pointer;margin-bottom:1rem;
  transition:color var(--dur) var(--ease);}
.back-link:hover{color:var(--accent-2);}
.lesson-tag{display:inline-block;background:var(--brand);color:var(--brand-ink);font-size:.6rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.04em;padding:.16rem .5rem;border-radius:var(--radius-pill);vertical-align:middle;margin-left:.5rem;}
.lesson-arrow{flex:none;color:var(--muted);font-weight:700;font-size:1.1rem;}
.lesson-card.next{border-color:color-mix(in srgb,var(--brand) 60%,var(--line));background:color-mix(in srgb,var(--brand) 7%,var(--surface));}
.lesson-card.next .lesson-arrow{color:var(--text);}
.lesson-card.done .lesson-arrow{color:var(--good);}

.lesson-section-title{font-family:var(--font-display);font-size:1.18rem;font-weight:700;letter-spacing:-.018em;margin:2.1rem 0 .2rem;}
.lesson-section-sub{font-size:.9rem;color:var(--muted);margin:0 0 .5rem;line-height:1.5;}

.lesson-goals{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--radius);padding:1.1rem 1.4rem;margin-top:1.2rem;}
.lesson-goals h4{margin:0 0 .65rem;font-size:.76rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);}
.lesson-goals ul{list-style:none;margin:0;padding:0;display:grid;gap:.5rem;}
.lesson-goals li{display:flex;gap:.55rem;align-items:flex-start;font-size:.96rem;color:var(--text-soft);line-height:1.5;}
.lesson-goals li::before{content:'✓';color:var(--good);font-weight:700;flex:none;}

.study-grid{display:grid;gap:.95rem;margin-top:.3rem;}
@media(min-width:560px){.study-grid{grid-template-columns:repeat(2,1fr);}}
.study-card{display:flex;gap:1rem;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:1rem;
  transition:border-color var(--dur) var(--ease);}
.study-card:hover{border-color:var(--line-strong);}
.study-visual{flex:none;cursor:pointer;}
.study-visual .diagram{width:92px;}
.study-glyph{flex:none;width:92px;height:92px;display:flex;align-items:center;justify-content:center;font-size:3.2rem;
  font-weight:700;line-height:1;background:var(--surface-2);border:1px solid var(--line);border-radius:14px;cursor:pointer;
  transition:border-color var(--dur) var(--ease),transform .12s var(--press);}
.study-glyph:hover{border-color:var(--line-strong);}
.study-glyph:active{transform:scale(.95);}
.study-body{flex:1;min-width:0;}
.study-head{display:flex;align-items:baseline;gap:.5rem;flex-wrap:wrap;}
.study-cyr{font-size:1.4rem;font-weight:700;color:var(--accent);letter-spacing:-.01em;}
.study-name{font-size:.84rem;color:var(--muted);}
.study-desc{font-size:.9rem;color:var(--text-soft);line-height:1.55;margin:.35rem 0 .55rem;}
.study-parts{font-size:.85rem;color:var(--muted);margin:.15rem 0 .55rem;}
.study-parts .ko{color:var(--text);font-weight:700;font-size:1rem;}
.study-actions{display:flex;gap:.4rem;flex-wrap:wrap;}

.tip{display:flex;gap:.6rem;align-items:flex-start;background:var(--bg-soft);
  border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:var(--radius);
  padding:.85rem 1.1rem;margin-top:.7rem;font-size:.92rem;color:var(--text-soft);line-height:1.55;}
.tip .tip-ico{flex:none;}
.tip .ko{color:var(--text);font-weight:700;}

/* ============================================================
   16. О КОМАНДЕ
   ============================================================ */
.team-hero{display:grid;gap:2rem;align-items:center;}
@media(min-width:768px){.team-hero{grid-template-columns:1.3fr 1fr;}}
.tomato{font-size:7rem;text-align:center;line-height:1;}
.about-list{display:grid;gap:1rem;margin-top:1.5rem;}
@media(min-width:768px){.about-list{grid-template-columns:repeat(3,1fr);}}

/* ============================================================
   17. ПОДВАЛ
   ============================================================ */
.footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:2.8rem 0;margin-top:1rem;}
.footer-in{display:flex;flex-wrap:wrap;gap:1.4rem;justify-content:space-between;align-items:center;}
.footer-cols{display:flex;gap:1.6rem;flex-wrap:wrap;}
.footer a{color:var(--text-soft);font-size:.92rem;font-weight:500;transition:color var(--dur) var(--ease);}
.footer a:hover{color:var(--text);}
.footer-muted{color:var(--muted);font-size:.88rem;}

/* ============================================================
   18. СКРОЛЛБАРЫ
   ============================================================ */
*{scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;}
.scroll-col::-webkit-scrollbar,body::-webkit-scrollbar{width:9px;height:9px;}
.scroll-col::-webkit-scrollbar-track,body::-webkit-scrollbar-track{background:transparent;}
.scroll-col::-webkit-scrollbar-thumb,body::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:var(--radius-pill);
  border:2px solid transparent;background-clip:content-box;}
.scroll-col::-webkit-scrollbar-thumb:hover,body::-webkit-scrollbar-thumb:hover{background:var(--muted);background-clip:content-box;}

/* ============================================================
   19. ФОКУС (доступность)
   ============================================================ */
:where(a,button,input,select,textarea,[tabindex]):focus-visible{
  outline:3px solid var(--focus);outline-offset:2px;
}
.jamo-card:focus-visible,.btn:focus-visible,.tab:focus-visible,.opt:focus-visible,.key:focus-visible,
.syl-btn:focus-visible,.icon-btn:focus-visible,.trace-letter:focus-visible,.feature-card:focus-visible,
.lesson-card:focus-visible,.step:focus-visible{outline-offset:3px;border-radius:var(--radius-sm);}

/* ============================================================
   20. KEYFRAMES — сдержанные
   ============================================================ */
@keyframes fade{from{opacity:0;}to{opacity:1;}}
@keyframes revealUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}
@keyframes menuIn{from{opacity:0;transform:translateY(-8px);}to{opacity:1;transform:none;}}
@keyframes modalIn{from{opacity:0;transform:translateY(14px) scale(.98);}to{opacity:1;transform:none;}}
@keyframes pop{0%{transform:scale(1);}45%{transform:scale(1.03);}100%{transform:scale(1);}}
@keyframes shake{10%,90%{transform:translateX(-2px);}20%,80%{transform:translateX(3px);}30%,50%,70%{transform:translateX(-5px);}40%,60%{transform:translateX(5px);}}

/* ============================================================
   21. PREFERS-REDUCED-MOTION
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important;
  }
}

/* ============================================================
   22. МОБИЛЬНЫЕ УПЛОТНЕНИЯ
   ============================================================ */
@media(max-width:560px){
  .practice-card{padding:1.4rem 1.05rem;}
  .builder-cols{gap:.5rem;}
  .builder-col{padding:.55rem .4rem;}
  .scroll-col{gap:.35rem;}
  .col-head{font-size:.72rem;}
  .syl-btn{font-size:.98rem;}
  .hero-stats{gap:1.2rem 1.8rem;margin-top:2.6rem;}
  .modal-card{padding:1.5rem 1.25rem;}
  .modal-glyph{font-size:3.6rem;}
}

/* ============================================================
   23. УТИЛИТЫ
   ============================================================ */
.center{text-align:center;}
.mt-1{margin-top:.6rem;}.mt-2{margin-top:1.2rem;}.mt-3{margin-top:2rem;}
.hidden{display:none !important;}