/* HintMeTalk — база для демо-вариантов лендинга.
   Токены, каркас (левое меню + контент), сетка, движение.
   Вариант задаётся data-variant, тема — data-theme. */

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

html, body { height: 100%; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- токены: база (тёмная) ---------- */
:root {
  --bg: #0b0d17;
  --bg-2: #12142a;
  --panel: rgba(255, 255, 255, 0.045);
  --panel-solid: #151830;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --ink: #eef0ff;
  --ink-2: #b9bde0;
  --ink-3: #7d83ab;
  --accent: #6c63ff;
  --accent-2: #3b82f6;
  --gold: #d4af37;
  --radius: 14px;
  --radius-lg: 18px;
  --rail-w: 288px;
  --maxw: 1120px;
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.06) inset, 0 18px 40px -28px rgba(0, 0, 0, 0.9);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-drawer: cubic-bezier(0.32, 0.72, 0, 1);
  --dur-fast: 160ms;
  --dur: 220ms;
  --dur-slow: 320ms;
}

/* ---------- каркас ---------- */
.app {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  min-height: 100vh;
}

.main {
  min-width: 0;
  padding: 0 clamp(20px, 4vw, 56px) 72px;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
}

/* ---------- левое меню (как в приложении) ---------- */
.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 22px 18px;
  border-right: 1px solid var(--line);
  background: var(--rail-bg, var(--bg-2));
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  z-index: 20;
}

.rail__brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 4px 6px 2px;
}

.rail__bulb {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 19px;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 22px -12px var(--accent);
}

.rail__name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.rail__tag {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-3);
}

.rail__block { display: grid; gap: 8px; }

.rail__label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 0 6px;
}

/* переключатели языка и темы */
.switch-row { display: flex; gap: 8px; }

.control {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  height: 38px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-2);
  transition: border-color var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out);
}

.control:hover { border-color: var(--line-strong); }
.control:active { transform: scale(0.985); }
.control__caret { font-size: 9px; color: var(--ink-3); }

/* дропдаун языка */
.lang { position: relative; }

.lang__menu {
  position: absolute;
  inset-inline: 0;
  top: calc(100% + 6px);
  padding: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--panel-solid);
  box-shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.8);
  display: grid;
  gap: 2px;
  z-index: 30;
  transform-origin: top center;
  opacity: 0;
  transform: scale(0.96) translateY(-4px);
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.lang[data-open="true"] .lang__menu {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.lang__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--ink-2);
  text-align: left;
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

.lang__item:hover { background: var(--panel); color: var(--ink); }
.lang__item[aria-selected="true"] { color: var(--ink); }
.lang__item[aria-selected="true"]::after {
  content: "\2713";
  color: var(--accent);
  font-size: 11px;
}


/* ---------- навигация ---------- */
.nav { display: grid; gap: 2px; }

.nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 550;
  color: var(--ink-2);
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

.nav__link .ico { width: 18px; text-align: center; font-size: 14px; }
.nav__link:hover { background: var(--panel); color: var(--ink); }
.nav__link[aria-current="true"] { color: var(--ink); background: var(--panel); }

.nav__link[aria-current="true"]::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 50%;
  width: 3px;
  height: 18px;
  margin-top: -9px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
}

/* сферы общения — аккордеон */
.spheres { display: grid; gap: 2px; }

.spheres__head {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 550;
  color: var(--ink-2);
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

.spheres__head:hover { background: var(--panel); color: var(--ink); }

.spheres__head .chev {
  margin-left: auto;
  font-size: 9px;
  color: var(--ink-3);
  transition: transform var(--dur) var(--ease-out);
}

.spheres[data-open="true"] > .spheres__head .chev { transform: rotate(180deg); }

.spheres__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur) var(--ease-out);
}

.spheres[data-open="true"] > .spheres__panel { grid-template-rows: 1fr; }

.spheres__inner { overflow: hidden; min-height: 0; }

.spheres__list {
  display: grid;
  gap: 1px;
  margin: 2px 0 6px 18px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.spheres__item {
  display: block;
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--ink-3);
  transition: color var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out);
}

.spheres__item b { display: block; font-weight: 600; }
.spheres__item small { font-size: 11px; color: var(--ink-3); }
.spheres__item:hover { color: var(--ink); background: var(--panel); }

/* кнопки */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 44px;
  padding: 0 18px;
  border-radius: 11px;
  font-size: 13.5px;
  font-weight: 650;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}

.btn:active { transform: scale(0.97); }

.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 28px -16px var(--accent);
}

.btn--ghost { color: var(--ink); border-color: var(--line-strong); background: var(--panel); }
.btn--ghost:hover { border-color: var(--accent); }
.btn--wide { width: 100%; }
.btn--sm { height: 36px; padding: 0 13px; font-size: 12.5px; border-radius: 9px; }

.rail__cta { display: grid; gap: 7px; margin-top: auto; }

/* мобильная шапка */
.topbar {
  display: none;
  align-items: center;
  gap: 12px;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.burger {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 15px;
}

.topbar__title { font-size: 14px; font-weight: 700; letter-spacing: -0.01em; }
.topbar__spacer { margin-left: auto; }

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(4, 4, 12, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease-out);
  z-index: 15;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: clamp(44px, 6vw, 88px) 0 clamp(32px, 4vw, 56px);
  isolation: isolate;
  overflow: hidden;
}

.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
  background: var(--panel);
}

.hero__kicker i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);
}

.hero__title {
  margin: 20px 0 0;
  font-size: clamp(34px, 5.4vw, 66px);
  line-height: 1.03;
  letter-spacing: -0.035em;
  font-weight: 750;
  max-width: 20ch;
  text-wrap: balance;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--accent), var(--accent-2) 55%, var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.3vw, 17.5px);
  line-height: 1.6;
  color: var(--ink-2);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.stat b {
  display: block;
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat span { font-size: 12px; color: var(--ink-3); }

/* ---------- секции ---------- */
.section {
  padding: clamp(38px, 4.6vw, 62px) 0;
  border-top: 1px solid var(--line);
}

.section__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.section__title {
  margin: 0;
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.section__note {
  margin: 0;
  max-width: 46ch;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-3);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 196px), 1fr));
  gap: 12px;
}

.card {
  position: relative;
  overflow: hidden;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-card);
  transition: border-color var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out);
}

.card__ico {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 11px;
  font-size: 18px;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}

.card__title { margin: 0 0 7px; font-size: 15.5px; font-weight: 680; letter-spacing: -0.01em; }
.card__text { margin: 0; font-size: 13px; line-height: 1.55; color: var(--ink-2); }

.card__meta {
  display: inline-block;
  margin-top: 14px;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
}

.card--accent {
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: linear-gradient(160deg,
    color-mix(in srgb, var(--accent) 16%, transparent),
    var(--panel) 62%);
}

/* чипы сфер */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-2);
  background: var(--panel);
  transition: border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.chip small { font-size: 11px; font-weight: 500; color: var(--ink-3); }
.chip:active { transform: scale(0.98); }

/* голоса */
.voices { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; }

.voice {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
}

.voice__ava {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
}

.voice__name { display: block; font-size: 13.5px; font-weight: 650; }
.voice__meta { display: block; font-size: 11.5px; color: var(--ink-3); }

/* блог */
.blog { display: grid; grid-template-columns: repeat(auto-fit, minmax(238px, 1fr)); gap: 12px; }

.post {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out);
}

.post__tag {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}

.post__title { font-size: 15px; font-weight: 650; letter-spacing: -0.01em; line-height: 1.3; }
.post__date { margin-top: auto; font-size: 11.5px; color: var(--ink-3); }

/* соцсети */
.socials { display: flex; flex-wrap: wrap; gap: 8px; }

.social {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-2);
  background: var(--panel);
  transition: border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.social:active { transform: scale(0.98); }

/* подвал */
.footer {
  padding: 34px 0 10px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px;
}

.footer__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  font-size: 12px;
  color: var(--ink-3);
}

.footer__row a:hover { color: var(--ink); }
.footer__note { font-size: 11.5px; color: var(--ink-3); }

/* ---------- движение ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
  transition-delay: calc(var(--i, 0) * 55ms);
}

[data-reveal].is-in { opacity: 1; transform: none; }

@media (hover: hover) and (pointer: fine) {
  .card:hover,
  .post:hover {
    transform: translateY(-2px);
    border-color: var(--line-strong);
  }

  .chip:hover,
  .social:hover {
    border-color: var(--accent);
    color: var(--ink);
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }

  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .card:hover,
  .post:hover { transform: none; }
}

/* ---------- блок Хинти (структура, цвета — из токенов) ---------- */
.hinty {
  display: grid;
  grid-template-columns: 148px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.hinty__bulb {
  position: relative;
  display: grid;
  place-items: center;
  width: 148px;
  height: 148px;
  border-radius: 50%;
  overflow: hidden;
}

.hinty__glow {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--gold) 60%, transparent), transparent 68%);
  filter: blur(10px);
  animation: hinty-breathe 3.6s var(--ease-in-out) infinite alternate;
}

.hinty__core {
  position: relative;
  font-size: 54px;
  filter: drop-shadow(0 10px 24px color-mix(in srgb, var(--gold) 50%, transparent));
}

.hinty__body .section__note { max-width: 52ch; margin-top: 10px; }
.hinty__body .hero__actions { margin-top: 18px; }

@keyframes hinty-breathe {
  from { transform: scale(0.92); opacity: 0.55; }
  to   { transform: scale(1.06); opacity: 0.95; }
}

@media (max-width: 720px) {
  .hinty { grid-template-columns: minmax(0, 1fr); }
  .hinty__bulb { width: 116px; height: 116px; }
  .hinty__core { font-size: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  .hinty__glow { animation: none; opacity: 0.8; }
}

/* ---------- адаптив ---------- */
@media (max-width: 1080px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .topbar { display: flex; }

  .rail {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(86vw, 320px);
    transform: translateX(-102%);
    transition: transform var(--dur-slow) var(--ease-drawer);
    box-shadow: 24px 0 60px -40px #000;
  }

  .app[data-rail="open"] .rail { transform: none; }
  .app[data-rail="open"] .scrim { opacity: 1; pointer-events: auto; }
  .main { padding-inline: 18px; }
}

@media (max-width: 620px) {
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__stats { gap: 12px 20px; }
  .stat b { font-size: 19px; }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .blog { grid-template-columns: minmax(0, 1fr); }
  .voices { grid-template-columns: minmax(0, 1fr); }
  .topbar .control { flex: 0 0 auto; padding: 0 12px; }
  .hero__decor { display: none; }
}