/* ---------- верхняя строка ---------- */

body { background: var(--bg); }

.topbar {
  position: absolute; inset: 0 0 auto 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px var(--margin);
  color: var(--ink);
}
.topbar__mark, .topbar__link { color: inherit; text-decoration: none; }
.topbar__mark { font-family: "Unbounded", sans-serif; font-weight: 800; font-size: 1.25rem; letter-spacing: -.02em; }
.topbar__link { font-weight: 700; font-size: 1rem; text-decoration: underline; text-underline-offset: 5px; text-decoration-thickness: 2px; }

/* ---------- первый экран: письмо, которое можно открыть ---------- */

.hero {
  position: relative; isolation: isolate;
  min-height: 100svh;
  display: grid; justify-items: center; align-content: start; gap: 28px;
  padding: 96px var(--margin) 64px;
  background: var(--page); color: var(--ink);
  text-align: center;
  overflow: clip;
  transition: background-color .4s;
}
.hero__copy { display: grid; justify-items: center; gap: 18px; max-width: 760px; position: relative; z-index: 1; }
.hero__title {
  font-family: "Unbounded", var(--font-display); font-weight: 800; text-transform: none;
  font-size: clamp(2.1rem, 1.2rem + 3.6vw, 4.4rem); line-height: 1.02; letter-spacing: -.035em;
  color: var(--hero-ink, var(--ink));
}
.hero__lead { max-width: 46ch; font-size: var(--step-lead); line-height: 1.4; color: var(--hero-muted, var(--muted)); }
.hero__row { display: flex; align-items: center; justify-content: center; gap: 18px 24px; flex-wrap: wrap; font-weight: 700; color: var(--hero-muted, var(--muted)); }
.hero__row .btn { min-height: 58px; padding: 0 32px; font-size: 1.1rem; }
.hero__themes { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; font-weight: 700; font-size: .95rem; color: var(--hero-muted, var(--muted)); }
.hero__themes button {
  min-height: 38px; padding: 0 16px; border-radius: 999px; cursor: pointer;
  border: 2px solid color-mix(in oklab, var(--hero-ink, var(--ink)) 22%, transparent); background: transparent;
  color: var(--hero-ink, var(--ink)); font-weight: 700; font-size: .95rem;
  transition: background-color .2s, color .2s, border-color .2s;
}
.hero__themes button[aria-checked="true"] { background: var(--bg); border-color: var(--bg); color: var(--ink); }
.hero__object { position: relative; z-index: 1; width: min(420px, 100%); display: grid; gap: 14px; }
.hero__demo { min-height: 380px; }
.hero__hint { font-size: var(--step-small); font-weight: 700; color: var(--hero-muted, var(--muted)); }
.hero .floaties { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.hero .floaties span {
  position: absolute; bottom: -40px; width: var(--s); aspect-ratio: 1; opacity: .7; background: var(--page-deco);
  -webkit-mask: url("/assets/img/heart-mask.svg") center / contain no-repeat;
          mask: url("/assets/img/heart-mask.svg") center / contain no-repeat;
  animation: floaty var(--d) linear var(--delay) infinite;
}
@keyframes floaty {
  from { transform: translate(0, 0) rotate(-8deg); }
  50% { transform: translate(18px, -55vh) rotate(8deg); }
  to { transform: translate(-6px, -115vh) rotate(-6deg); }
}
/* тёмные темы демо: текст первого экрана светлый */
.hero[data-theme="evening"] { --hero-ink: #f6dcc0; --hero-muted: #d9b48f; --env-ink: #f6dcc0; --env-muted: #d9b48f; }
.hero[data-theme="ticket"] { --hero-ink: #f7f9f8; --hero-muted: #a9cbcd; --env-ink: #f7f9f8; --env-muted: #a9cbcd; }
.topbar[data-dark] { color: #fff; }

/* ---------- как это работает: аккордеон тонированных панелей ---------- */

.how {
  --how-1: #6e1a3a; --how-2: #a3204f; --how-3: #c42656; --how-4: #ffa3b8; --how-5: #ffd6e0;
  padding: clamp(72px, 10vw, 140px) var(--margin);
}
.how__intro {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; align-items: end;
  margin-bottom: 64px;
}
.how__intro h2 { grid-column: 1 / 6; font-family: "Unbounded", var(--font-display); font-weight: 800; font-size: clamp(2.1rem, 1.4rem + 2.6vw, 3.8rem); letter-spacing: -.03em; }
.how__intro p { grid-column: 7 / 12; font-size: 1.125rem; color: var(--muted); }

.how__row { display: flex; height: 520px; border-radius: 28px; overflow: hidden; }
.how__stage {
  position: relative; flex: 1 1 0; min-width: 0;
  background: var(--c); color: var(--ink-on, var(--bg));
  transition: flex-basis .45s var(--ease), flex-grow .45s var(--ease);
}
.how__stage.is-open { flex: 0 0 58%; }
.how__tab {
  position: absolute; inset: 0; width: 100%; border: 0; background: none; color: inherit; cursor: pointer;
  text-align: left;
}
.how__tab span {
  position: absolute; left: 24px; bottom: 24px;
  transform: rotate(-90deg); transform-origin: left bottom; translate: 1.2em 0;
  white-space: nowrap;
  font-family: "Unbounded", var(--font-display); font-weight: 700; font-size: 1.1rem;
}
.how__stage.is-open .how__tab { display: none; }
.how__body {
  position: absolute; inset: 0; padding: 36px;
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto 1fr auto; column-gap: 32px;
  opacity: 0; visibility: hidden; transition: opacity .3s;
}
.how__stage.is-open .how__body { opacity: 1; visibility: visible; transition-delay: .2s; }
.how__body h3 { grid-column: 1; font-family: "Unbounded", var(--font-display); font-size: 2rem; letter-spacing: -.02em; }
.how__body p { grid-column: 1; grid-row: 3; max-width: 36ch; font-size: 1.125rem; }
.how__ui { grid-column: 2; grid-row: 1 / 4; display: grid; place-items: center; }

/* фрагменты интерфейса внутри панелей */
.mini-ticket {
  width: min(260px, 100%); padding: 22px 20px 24px; border-radius: 16px;
  background: var(--bg); color: var(--ink); display: grid; justify-items: center; gap: 8px; text-align: center;
  transform: rotate(-3deg); border-radius: 24px;
}
.mini-ticket img { width: 110px; }
.mini-ticket b { font-family: "Unbounded", var(--font-display); font-size: 1.3rem; line-height: 1.05; }
.mini-ticket span { font-size: .95rem; color: var(--muted); }

.mini-link {
  display: grid; gap: 10px; justify-items: start;
  padding: 18px 20px; border-radius: 14px; background: var(--bg); color: var(--ink);
  font-weight: 600; font-size: 1.1rem;
}
.mini-link b { padding: 4px 12px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: .875rem; }

.mini-buttons { display: flex; gap: 14px; align-items: center; }
.mini-buttons .btn { --b-bg: var(--bg); --b-ink: var(--ink); --b-border: var(--bg); pointer-events: none; }
.mini-buttons .btn--ghost { --b-bg: transparent; --b-ink: var(--bg); --b-border: var(--bg); transform: translate(36px, -56px) rotate(9deg) scale(.8); }

.mini-stub {
  display: grid; grid-template-columns: repeat(3, auto); gap: 18px;
  padding: 20px 22px; border-radius: 14px; background: var(--bg); color: var(--ink);
  background-image: radial-gradient(circle, var(--line) 1.6px, transparent 2px);
  background-size: 12px 6px; background-repeat: repeat-x; border-radius: 20px;
}
.mini-stub small { display: block; font-weight: 700; color: var(--muted); font-size: .8125rem; }
.mini-stub b { font-family: "Unbounded", var(--font-display); font-size: 1rem; white-space: nowrap; }

.mini-msg {
  display: grid; gap: 4px; max-width: 300px;
  padding: 14px 16px; border-radius: 16px 16px 16px 4px; background: var(--bg); color: var(--ink);
  font-size: .95rem; line-height: 1.4;
}

/* ---------- вопросы: карточки картотеки ---------- */

.faq { padding: clamp(40px, 6vw, 80px) var(--margin) clamp(80px, 10vw, 140px); }
.faq h2, .faq__stack { width: min(100%, 860px); margin-inline: auto; }
.faq h2 { font-family: "Unbounded", var(--font-display); font-weight: 800; font-size: clamp(2.1rem, 1.4rem + 2.6vw, 3.8rem); letter-spacing: -.03em; margin-bottom: 48px; }
.faq__stack { display: grid; }
.faq__card {
  --tab-w: 200px;
  --bg-card: var(--surface);
  position: relative;
  margin-top: -14px;
  padding-top: 40px;
}
.faq__card:first-child { margin-top: 0; }
.faq__card:nth-child(3n+2) { --bg-card: var(--tint-5); }
.faq__card:nth-child(3n) { --bg-card: var(--ink); color: #fff1f4; }
.faq__card::before {
  /* корпус карточки и вкладка — одна фигура */
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--bg-card);
  --x: calc(var(--i) * 132px);
  clip-path: polygon(
    0 40px, var(--x) 40px, calc(var(--x) + 10px) 0, calc(var(--x) + var(--tab-w) - 10px) 0,
    calc(var(--x) + var(--tab-w)) 40px, 100% 40px, 100% 100%, 0 100%);
  border-radius: 0 0 var(--radius) var(--radius);
}
.faq__card { isolation: isolate; }
.faq__head {
  display: block; width: 100%; padding: 14px 28px 30px; border: 0; background: none; color: inherit; text-align: left; cursor: pointer;
}
.faq__tab {
  position: absolute; top: 0; left: calc(var(--i) * 132px); width: var(--tab-w); height: 40px;
  display: grid; place-items: center;
  font-family: "Unbounded", var(--font-display); font-weight: 700; font-size: .875rem;
}
.faq__q { font-weight: 800; font-size: 1.25rem; }
.faq__a {
  display: grid; grid-template-rows: 0fr; transition: grid-template-rows .4s var(--ease);
}
.faq__a > p { overflow: hidden; max-width: 50ch; padding: 0 28px; font-size: 1.0625rem; }
.faq__card.is-open .faq__a { grid-template-rows: 1fr; }
.faq__card.is-open .faq__a > p { padding-bottom: 34px; }

/* ---------- одно слово — кнопка ---------- */

.cta {
  position: relative; display: block; min-height: 60svh;
  padding: 28px var(--margin);
  background: var(--accent); color: var(--accent-ink); text-decoration: none;
  border-radius: 48px 48px 0 0;
  overflow: hidden;
}
.cta:hover, .cta:focus-visible { background: var(--accent-ink); color: var(--accent); outline-offset: -6px; }
.cta__note { display: block; max-width: 30ch; font-size: 1.25rem; font-weight: 600; }
.cta__arrow { position: absolute; top: 28px; right: var(--margin); width: 48px; height: 48px; }
.cta__word {
  position: absolute; left: var(--margin); right: var(--margin); bottom: 24px;
  font-family: "Unbounded", var(--font-display); font-weight: 800;
  font-size: 20vw; line-height: .9; letter-spacing: -.04em;
  white-space: nowrap; text-align: center;
}

/* ---------- подвал ---------- */

.footer {
  position: relative; min-height: 100svh; overflow: hidden;
  display: flex; flex-direction: column;
  padding: clamp(56px, 8vw, 100px) var(--margin) 0;
  background: var(--surface); color: var(--ink);
}
.footer__top { display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px; }
.footer__top > div { grid-column: 1 / 8; display: grid; justify-items: start; gap: 28px; }
.footer__invite {
  font-family: "Unbounded", var(--font-display); font-weight: 800; letter-spacing: -.035em;
  font-size: clamp(2.4rem, 1.4rem + 4vw, 5.5rem); line-height: 1; max-width: 12ch;
}
.footer__links { grid-column: 10 / 13; display: grid; align-content: start; gap: 10px; font-size: 1rem; font-weight: 600; }
.footer__links a { text-underline-offset: 4px; }
.footer__links [hidden] { display: none; }
.footer__legal {
  margin-top: auto; display: flex; justify-content: space-between; gap: 16px;
  font-size: var(--step-small); padding-bottom: 12px;
}
.footer__wordmark {
  font-family: "Unbounded", var(--font-display); font-weight: 800;
  font-size: 24vw; line-height: .9; white-space: nowrap; letter-spacing: -.05em; color: var(--accent);
  margin: 0 0 0 -.04em;
  transform: translateY(24%);
  margin-top: -2vw;
}

/* ---------- появление ---------- */

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- телефон ---------- */

@media (max-width: 760px) {
  .hero { padding-top: 76px; gap: 22px; }
  .hero__title { font-size: 2.15rem; }
  .hero__lead { font-size: 1.0625rem; }
  .hero__row { flex-direction: column; gap: 10px; width: 100%; }
  .hero__row .btn { width: 100%; }
  .hero__demo { min-height: 330px; }

  .how__intro { display: block; margin-bottom: 36px; }
  .how__intro h2 { margin-bottom: 16px; }
  .how__intro p { font-size: 1.0625rem; }
  .how__row { flex-direction: column; height: auto; }
  .how__stage, .how__stage.is-open { flex: none; }
  .how__tab { position: relative; height: 64px; }
  .how__tab span { transform: none; translate: 0; left: 20px; bottom: auto; top: 50%; translate: 0 -50%; font-size: 1.125rem; }
  .how__body { position: static; display: none; padding: 4px 20px 28px; grid-template-columns: 1fr; gap: 14px; opacity: 1; visibility: visible; }
  .how__stage.is-open .how__body { display: grid; }
  .how__body h3 { font-size: 1.5rem; }
  .how__body p, .how__ui { grid-column: 1; grid-row: auto; font-size: 1.0625rem; }
  .how__ui { justify-items: start; }
  .mini-buttons .btn--ghost { transform: translate(18px, -18px) rotate(9deg); }

  .faq h2 { font-size: 2.1rem; margin-bottom: 32px; }
  .faq__card { --tab-w: 120px; }
  .faq__card::before { --x: calc(var(--i) * 44px); }
  .faq__tab { left: calc(var(--i) * 44px); font-size: .875rem; }
  .faq__head { padding: 12px 20px 26px; }
  .faq__q { font-size: 1.125rem; }
  .faq__a > p { padding: 0 20px; font-size: 1rem; }

  .cta { min-height: 46svh; border-radius: 28px 28px 0 0; }
  .cta__note { font-size: 1.0625rem; max-width: 22ch; }
  .cta__arrow { width: 32px; height: 32px; }

  .footer { min-height: 88svh; }
  .footer__top { display: block; }
  .footer__invite { font-size: 9vw; }
  .footer__top .btn { width: 100%; }
  .footer__links { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 32px; font-size: .95rem; }
  .footer__wordmark { margin-top: 0; }
}