/* ============================================================
   W MUSIC LAB — Motion / Premium interactions
   Smooth scroll · masked reveal · parallax · spotlight ·
   reactive ticker · scroll-scrub · sticky CTA · blur-up ·
   intro · custom cursor
   ============================================================ */

/* ============================================================
   COOKIE NOTICE — уведомление об обработке данных (152-ФЗ)
   ============================================================ */
.cookie-note {
  position: fixed;
  left: clamp(16px, 3vw, 28px);
  bottom: clamp(16px, 3vw, 28px);
  z-index: 96;
  max-width: 460px;
  display: flex;
  flex-direction: row;          /* компактный бар: текст + кнопка в строку */
  align-items: center;
  gap: 1rem;
  padding: 0.7rem 0.7rem 0.7rem 1.1rem;
  background: rgba(18, 18, 20, 0.94);
  backdrop-filter: blur(14px) saturate(140%);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-lg);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.45s var(--ease-out), opacity 0.4s var(--ease-out);
}
.cookie-note.is-visible { transform: none; opacity: 1; }
.cookie-note p { margin: 0; flex: 1; }
.cookie-note a { color: var(--color-accent); text-decoration: underline; }
.cookie-note__ok { flex: none; padding: 0.55em 1.3em; font-size: 0.85rem; }
@media (max-width: 640px) {
  /* узкий бар у самого низа — не перекрывает CTA первого экрана */
  .cookie-note {
    left: 10px; right: 10px; bottom: 10px; max-width: none;
    border-radius: var(--radius);
    padding: 0.6rem 0.6rem 0.6rem 0.9rem;
    gap: 0.7rem;
  }
  .cookie-note p { font-size: 0.74rem; }
  .cookie-note__ok { padding: 0.5em 1em; font-size: 0.8rem; }
  /* пока баннер висит во всю ширину — приподнимаем FAB связи ровно над ним */
  body.has-cookie .connect { bottom: calc(10px + var(--cookie-h, 76px) + 12px); }
}
/* переход FAB плавный при появлении/уходе баннера */
.connect { transition: bottom 0.45s var(--ease-out); }

/* ---------- Skip to content (доступность) ---------- */
.skip-link {
  position: fixed;
  top: 10px; left: 10px;
  z-index: 500;
  padding: 0.7em 1.2em;
  border-radius: var(--radius-pill);
  background: var(--grad-gold);
  color: var(--color-text-on-accent);
  font-weight: 700;
  font-size: 0.9rem;
  transform: translateY(-150%);
  transition: transform 0.2s var(--ease-out);
}
.skip-link:focus-visible { transform: none; outline: 2px solid #fff; outline-offset: 2px; }

/* ============================================================
   EQUALIZER BACKGROUND — фоновый визуализатор (в тему музыки)
   ============================================================ */
.eq-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  display: flex;
  align-items: flex-end;
  gap: 0.7vw;
  padding: 0 1.2vw;
  opacity: 0.55;
  /* затухание к верху — бары не лезут в зону контента */
  -webkit-mask: linear-gradient(to top, #000 8%, rgba(0,0,0,0.5) 45%, transparent 78%);
  mask: linear-gradient(to top, #000 8%, rgba(0,0,0,0.5) 45%, transparent 78%);
}
.eq-bar {
  flex: 1 1 0;
  height: 100%;
  transform-origin: bottom;
  transform: scaleY(var(--h0, 0.2));
  border-radius: 4px 4px 0 0;
  background: linear-gradient(to top,
    rgba(232, 179, 65, 0.22),
    rgba(232, 179, 65, 0.05) 55%,
    transparent 100%);
  animation: eqPulse var(--d, 3s) var(--ease-in-out) var(--delay, 0s) infinite alternate;
}
@keyframes eqPulse {
  from { transform: scaleY(var(--h0, 0.2)); }
  to   { transform: scaleY(var(--h1, 0.6)); }
}
@media (prefers-reduced-motion: reduce) {
  .eq-bg { display: none; }
}

/* ---------- Lenis smooth scroll ---------- */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* ============================================================
   MASKED TEXT REVEAL — заголовки выезжают из-под маски по словам
   ============================================================ */
.split-line {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  padding-bottom: 0.08em;   /* запас под нижние выносные элементы (д, ц, щ) */
  margin-bottom: -0.08em;
}
.split-line__inner {
  display: inline-block;
  transform: translateY(115%);
  transition: transform 0.85s var(--ease-out);
  transition-delay: var(--wd, 0ms);
  will-change: transform;
}
.split-reveal.is-revealed .split-line__inner { transform: none; }

/* градиентный текст заголовка переносим на внутренние слова */
.section-title .split-line__inner {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@media (prefers-reduced-motion: reduce) {
  .split-line__inner { transform: none !important; transition: none !important; }
}

/* ============================================================
   HERO PARALLAX — слои на разных скоростях (задаётся из JS)
   ============================================================ */
.hero__inner { will-change: transform; }

/* ============================================================
   SPOTLIGHT — золотой блик следует за курсором на карточках
   ============================================================ */
.price-card, .value, .stat, .review { position: relative; }
.price-card > *:not(.price-card__badge), .value > *, .stat > *, .review > * { position: relative; z-index: 1; }
.price-card::before, .value::before, .stat::before, .review::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(
    220px circle at var(--mx, 50%) var(--my, 50%),
    rgba(232, 179, 65, 0.12),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.35s var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .price-card:hover::before,
  .value:hover::before,
  .stat:hover::before,
  .review:hover::before { opacity: 1; }
}

/* ============================================================
   REACTIVE TICKER — управляется из JS (скос + сдвиг от скорости)
   ============================================================ */
.ticker__track.js-driven {
  animation: none;
  transform: translateX(var(--tx, 0)) skewX(var(--skew, 0deg));
}

/* ============================================================
   GIFT SCROLL-SCRUB — сертификат вращается/всплывает при скролле
   ============================================================ */
.gift-3d {
  will-change: transform;
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* ============================================================
   РАЗВОРАЧИВАЮЩАЯСЯ ВИЗИТКА (mini-CTA в стиле communaclub)
   ============================================================ */
.cta-card {
  position: fixed;
  /* левый нижний угол: центр экрана свободен, контент не перекрыт; FAB связи — справа */
  left: clamp(16px, 3vw, 28px);
  bottom: clamp(16px, 3vw, 28px);
  transform: translateY(180%);
  z-index: 94;
  width: min(380px, calc(100vw - 2rem));
  background: rgba(18, 18, 20, 0.9);
  backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--color-line-strong);
  border-radius: 24px;
  box-shadow: 0 20px 60px -15px rgba(0, 0, 0, 0.65);
  overflow: hidden;
  opacity: 0;
  transition: transform 0.55s var(--ease-out), opacity 0.4s var(--ease-out);
}
.cta-card.is-visible { transform: translateY(0); opacity: 1; }

/* панель с формой — разворачивается по высоте (фирменный изинг communa) */
.cta-card__panel {
  height: 0;
  overflow: hidden;
  transition: height 0.6s cubic-bezier(0.7, 0, 0.2, 1);
}
.cta-card__inner { padding: 1.3rem 1.3rem 0.4rem; }
.cta-card__eyebrow {
  font-size: 0.76rem; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--color-accent); margin-bottom: 0.5rem;
}
.cta-card__title {
  font-family: var(--font-display); font-size: 1.1rem; font-weight: 700;
  line-height: 1.25; color: var(--color-text); margin-bottom: 1rem;
}
.cta-card__form { display: grid; gap: 0.7rem; }
.cta-card__submit { width: 100%; margin-top: 0.2rem; }

/* свёрнутая полоска-триггер */
.cta-card__bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  width: 100%;
  padding: 1rem 1rem 1rem 1.4rem;
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.cta-card__bar-text {
  font-family: var(--font-display); font-weight: 600; font-size: 1rem;
  color: var(--color-text);
}
.cta-card__plus {
  position: relative; flex: none;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--grad-gold);
  box-shadow: var(--shadow-gold);
  transition: transform 0.45s cubic-bezier(0.7, 0, 0.2, 1);
}
.cta-card__plus::before, .cta-card__plus::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  background: var(--color-text-on-accent); border-radius: 2px;
  transform: translate(-50%, -50%);
}
.cta-card__plus::before { width: 14px; height: 2px; }
.cta-card__plus::after { width: 2px; height: 14px; }
.cta-card.is-open .cta-card__plus { transform: rotate(135deg); }
.cta-card.is-open .cta-card__bar-text { color: var(--color-text-muted); }

@media (max-width: 720px) {
  /* слева, с запасом справа под FAB связи */
  .cta-card {
    left: 12px; right: 80px;
    width: auto;
    transform: translateY(180%);
  }
  .cta-card.is-visible { transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .cta-card { transition: opacity 0.3s linear; }
  .cta-card__panel { transition: none; }
}

/* ============================================================
   BLUR-UP — мягкая подгрузка фото педагогов
   ============================================================ */
.teacher__photo {
  background: linear-gradient(135deg, #1d1d22, #131316);
  position: relative;
}
.teacher__photo img {
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 0.7s var(--ease-out),
              transform var(--dur-slow) var(--ease-out),
              filter var(--dur-slow) var(--ease-out);
}
.teacher__photo img.is-loaded { opacity: 1; transform: scale(1); }
/* hover-зум сохраняем поверх загруженного состояния */
.teacher:hover .teacher__photo img.is-loaded { transform: scale(1.04); }
@media (prefers-reduced-motion: reduce) {
  .teacher__photo img { opacity: 1; transform: none; }
}

/* ============================================================
   INTRO — брендовая заставка при загрузке
   ============================================================ */
.intro {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background: var(--color-bg);
}
.intro__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}
.intro__mark {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: var(--color-text);
  -webkit-mask: url("../assets/mark.svg") center / contain no-repeat;
  mask: url("../assets/mark.svg") center / contain no-repeat;
  opacity: 0;
  transform: scale(0.6);
  animation: introMark 0.9s var(--ease-out) forwards;
}
.intro__name {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.2em;
  font-size: clamp(1.1rem, 0.9rem + 1vw, 1.6rem);
  color: var(--color-text);
  opacity: 0;
  transform: translateY(12px);
  animation: introName 0.7s var(--ease-out) 0.35s forwards;
}
.intro__track {
  width: 150px; height: 2px;
  background: var(--color-line-strong);
  border-radius: 2px;
  overflow: hidden;
}
.intro__bar {
  display: block;
  width: 100%; height: 100%;
  background: var(--grad-gold);
  transform: scaleX(0);
  transform-origin: left;
  animation: introBar 1.15s var(--ease-out) 0.3s forwards;
}
.intro.is-done {
  animation: introOut 0.7s var(--ease-out) forwards;
  pointer-events: none;
}
.intro[hidden] { display: none; }
@keyframes introMark { to { opacity: 1; transform: scale(1); } }
@keyframes introName { to { opacity: 1; transform: none; } }
@keyframes introBar { to { transform: scaleX(1); } }
@keyframes introOut { to { opacity: 0; transform: translateY(-100%); visibility: hidden; } }
@media (prefers-reduced-motion: reduce) {
  .intro { display: none; }
}

/* ============================================================
   BUTTON CONTOUR BEAM — свет плавно бежит по контуру кнопки
   ============================================================ */
@property --beam-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}
.btn, .price-card__cta { position: relative; isolation: isolate; }

/* световая дуга по периметру (маска оставляет только рамку) */
.btn::after, .price-card__cta::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  border-radius: inherit;
  padding: 1.6px;
  background: conic-gradient(
    from var(--beam-angle),
    transparent 0deg,
    transparent 230deg,
    rgba(255, 255, 255, 0.9) 300deg,
    transparent 350deg
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.45s var(--ease-out);
  pointer-events: none;
}
.btn:hover::after, .price-card__cta:hover::after {
  opacity: 1;
  animation: beamRun 2.6s linear infinite;
}
@keyframes beamRun { to { --beam-angle: 360deg; } }

@media (prefers-reduced-motion: reduce) {
  .btn::after, .price-card__cta::after { display: none; }
}

/* ============================================================
   CARD CONTOUR BEAM — золотой свет бежит по грани карточки при наведении
   (bento → ::before, т.к. ::after занят свечением; остальные → ::after)
   ============================================================ */
.bento__card::before,
.value::after, .stat::after, .review::after,
.price-card::after, .teacher::after, .step::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 4;
  border-radius: inherit;
  padding: 1.5px;
  background: conic-gradient(
    from var(--beam-angle),
    transparent 0deg,
    transparent 230deg,
    rgba(232, 179, 65, 0.95) 300deg,
    transparent 350deg
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
  pointer-events: none;
}
.bento__card:hover::before,
.value:hover::after, .stat:hover::after, .review:hover::after,
.price-card:hover::after, .teacher:hover::after, .step:hover::after {
  opacity: 1;
  animation: beamRun 2.6s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .bento__card::before,
  .value::after, .stat::after, .review::after,
  .price-card::after, .teacher::after, .step::after { display: none; }
}