/* ==========================================================
   Ветер Перемен — стили лендинга
   палитра, шрифты и общая ритмика взяты из дизайн-гайда
   ========================================================== */

@font-face {
  font-family: "Oks Free";
  src: url("/static/assets/Oks%20Free%200013.otf") format("opentype");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
}

:root {
  /* палитра */
  --bg: #F5EAD0;
  --bg-soft: #FBF3DF;
  --ink: #141414;
  --ink-soft: #2C2C2C;

  --red: #FD5A47;
  --red-deep: #C8412F;
  --blue: #1E5BA8;
  --blue-soft: #C4DDE8;
  --blue-deep: #0F3D7A;
  --yellow: #FCBF49;
  --magenta: #FF006E;
  --mint: #06D6A0;
  --purple: #6A4C93;
  --peach: #F4A578;
  --cream: #F4ECD8;

  /* типографика */
  --ff-display: "Oks Free", "Unbounded", system-ui, sans-serif;
  --ff-sub: "Russo One", "Unbounded", sans-serif;
  --ff-body: "Manrope", "Century Gothic", system-ui, sans-serif;
  --ff-accent: "Caveat", cursive;

  /* радиусы и тени */
  --radius-sm: 12px;
  --radius-md: 22px;
  --radius-lg: 36px;
  --shadow-card: 0 8px 0 var(--ink);
  --shadow-card-hover: 0 4px 0 var(--ink);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* ==========================================================
   Хедер
   ========================================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  background: rgba(245, 234, 208, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--ink);
}

.topbar__logo {
  display: inline-flex;
  align-items: center;
  height: 44px;
}

.topbar__logo img {
  height: 44px;
  width: auto;
  display: block;
  transition: transform .15s ease;
}

.topbar__logo:hover img {
  transform: rotate(-4deg);
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--ff-sub);
  text-transform: lowercase;
  font-size: 15px;
}

.topbar__cta {
  background: var(--ink);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 999px;
  transition: transform .15s ease;
}

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

@media (max-width: 540px) {
  .topbar__nav a:not(.topbar__cta) {
    display: none;
  }
}

/* ==========================================================
   Hero
   ========================================================== */

.hero {
  position: relative;
  padding: clamp(48px, 9vw, 130px) 24px clamp(60px, 8vw, 110px);
  text-align: center;
  isolation: isolate;
  overflow: hidden;
}

.hero__decor {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

/* ==========================================================
   Декоративные элементы — диско-шар и звёзды
   ========================================================== */

.decor {
  position: absolute;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  z-index: -1;
}

/* диско-шар: большой, в правой части hero */
.decor--disko {
  width: clamp(220px, 32vw, 420px);
  height: auto;
  right: -4%;
  bottom: -8%;
  transform: rotate(-8deg);
  opacity: 0.95;
  animation: float-disko 9s ease-in-out infinite;
}

/* красная звезда — слева сверху hero */
.decor--star-red {
  width: clamp(70px, 9vw, 130px);
  height: auto;
  top: 12%;
  left: 6%;
  transform: rotate(-14deg);
  animation: spin-slow 22s linear infinite;
}

/* оранжевая звезда — справа сверху hero */
.decor--star-orange {
  width: clamp(60px, 7vw, 110px);
  height: auto;
  top: 22%;
  right: 8%;
  transform: rotate(18deg);
  animation: spin-slow-rev 28s linear infinite;
}

/* About: оранжевая звезда — небольшой акцент в углу секции */
.about { position: relative; }
.decor--about {
  position: absolute;
  width: clamp(60px, 8vw, 110px);
  height: auto;
  top: -30px;
  right: 6%;
  transform: rotate(-22deg);
  z-index: 0;
}
.about__grid { position: relative; z-index: 1; }

/* Register: красная звезда — рядом с заголовком */
.register { position: relative; }
.decor--register {
  position: absolute;
  width: clamp(56px, 7vw, 90px);
  height: auto;
  top: 24px;
  left: 8%;
  transform: rotate(-12deg);
  z-index: 0;
}
.register__head, .form { position: relative; z-index: 1; }

@keyframes spin-slow {
  to { transform: rotate(346deg); }
}
@keyframes spin-slow-rev {
  to { transform: rotate(-342deg); }
}
@keyframes float-disko {
  0%, 100% { transform: rotate(-8deg) translateY(0); }
  50%      { transform: rotate(-6deg) translateY(-12px); }
}

.hero__title {
  font-family: var(--ff-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  font-size: clamp(56px, 14vw, 180px);
  line-height: 0.86;
  margin: 0 0 22px;
  color: var(--ink);
}

.hero__title span {
  display: block;
}

.hero__title span:nth-child(2) {
  transform: translateX(8%);
}

.hero__subtitle {
  font-family: var(--ff-sub);
  font-size: clamp(16px, 2.4vw, 22px);
  text-transform: lowercase;
  margin: 0 0 8px;
  color: var(--ink);
}

.hero__accent {
  font-family: var(--ff-accent);
  font-size: clamp(28px, 4.5vw, 44px);
  color: var(--red);
  margin: 0 0 32px;
  transform: rotate(-2deg);
  display: inline-block;
}

.hero__cta {
  margin-bottom: 64px;
}

.hero__meta {
  display: flex;
  justify-content: center;
  gap: clamp(14px, 4vw, 48px);
  flex-wrap: wrap;
  margin-top: 12px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  padding: 14px 22px;
  background: var(--bg-soft);
  border: 2px solid var(--ink);
  border-radius: var(--radius-md);
  min-width: 130px;
}

.meta-item__label {
  font-family: var(--ff-sub);
  font-size: 14px;
  text-transform: lowercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.meta-item__value {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: 22px;
  text-transform: lowercase;
}

/* ==========================================================
   Кнопки
   ========================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--ff-sub);
  text-transform: lowercase;
  font-size: 18px;
  padding: 16px 28px;
  border-radius: 999px;
  border: 2px solid var(--ink);
  background: var(--bg-soft);
  color: var(--ink);
  transition: transform .15s ease, box-shadow .15s ease;
  text-decoration: none;
  user-select: none;
}

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

.btn--primary {
  background: var(--red);
  color: #fff;
  box-shadow: 6px 6px 0 var(--ink);
}

.btn--primary:hover {
  box-shadow: 8px 8px 0 var(--ink);
}

.btn--submit {
  width: 100%;
  background: var(--ink);
  color: var(--bg);
  padding: 20px 28px;
  font-size: 20px;
  box-shadow: 6px 6px 0 var(--red);
  position: relative;
}

.btn--submit:hover {
  box-shadow: 8px 8px 0 var(--red);
}

.btn--submit[disabled] {
  opacity: 0.7;
  cursor: progress;
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
}

.btn__spinner {
  display: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: spin .7s linear infinite;
}

.btn[data-loading="1"] .btn__label { opacity: 0.4; }
.btn[data-loading="1"] .btn__spinner { display: inline-block; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================
   About
   ========================================================== */

.about {
  padding: clamp(40px, 6vw, 80px) 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.about__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.card {
  padding: 28px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform .15s ease, box-shadow .15s ease;
}

.card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 var(--ink);
}

.card h3 {
  font-family: var(--ff-display);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 22px;
  margin: 0 0 14px;
}

.card p {
  margin: 0;
  font-size: 16px;
  line-height: 1.55;
}

.card--cream  { background: var(--cream); }
.card--blue   { background: var(--blue-soft); }
.card--yellow { background: var(--yellow); }

/* ==========================================================
   Регистрация
   ========================================================== */

.register {
  padding: clamp(40px, 6vw, 80px) 24px clamp(80px, 9vw, 120px);
  max-width: 720px;
  margin: 0 auto;
}

.register__head {
  text-align: center;
  margin-bottom: 36px;
}

.section-title {
  font-family: var(--ff-display);
  font-weight: 900;
  text-transform: lowercase;
  font-size: clamp(40px, 7vw, 72px);
  margin: 0;
  letter-spacing: -0.01em;
  text-shadow: 3px 3px 0 var(--blue);
}

.section-sub {
  font-family: var(--ff-accent);
  color: var(--red);
  font-size: 28px;
  margin: 6px 0 0;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 22px;
  background: var(--bg-soft);
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 4vw, 36px);
  box-shadow: 8px 8px 0 var(--blue);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field--group {
  border: none;
  padding: 0;
  margin: 0;
}

.field--hidden {
  display: none;
}

.field label,
.field legend {
  font-family: var(--ff-sub);
  font-size: 14px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  padding: 0;
}

.field input[type="text"] {
  font-family: var(--ff-body);
  font-size: 17px;
  padding: 14px 16px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  width: 100%;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.field input[type="text"]:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.18);
}

.field input.invalid {
  border-color: var(--red);
}

.field__error {
  font-size: 13px;
  color: var(--red);
  min-height: 1em;
}

/* чипы (radio как кнопки) */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.chip span {
  display: inline-block;
  padding: 10px 18px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  font-family: var(--ff-sub);
  font-size: 15px;
  text-transform: lowercase;
  transition: transform .12s ease, background-color .12s ease, color .12s ease;
}

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

.chip input:checked + span {
  background: var(--ink);
  color: var(--bg);
}

.chip input:focus-visible + span {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
}

.form__status {
  margin: 0;
  text-align: center;
  font-family: var(--ff-sub);
  font-size: 14px;
  min-height: 1.2em;
  color: var(--red);
}

.form__status.success {
  color: var(--mint);
}

/* ==========================================================
   Success-экран
   ========================================================== */

.success {
  padding: 80px 24px;
  display: flex;
  justify-content: center;
}

.success__inner {
  text-align: center;
  max-width: 480px;
  background: var(--cream);
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  box-shadow: 10px 10px 0 var(--mint);
}

.success__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--mint);
  color: var(--ink);
  border: 2px solid var(--ink);
  border-radius: 50%;
  font-size: 32px;
  margin-bottom: 18px;
}

.success h2 {
  font-family: var(--ff-display);
  font-weight: 900;
  text-transform: lowercase;
  font-size: 40px;
  margin: 0 0 12px;
}

.success p {
  margin: 0 0 24px;
  font-size: 17px;
}

/* ==========================================================
   Футер
   ========================================================== */

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px;
  border-top: 2px solid var(--ink);
  font-family: var(--ff-sub);
  font-size: 13px;
  text-transform: lowercase;
  background: var(--bg-soft);
}

.footer__accent {
  font-family: var(--ff-accent);
  font-size: 22px;
  color: var(--red);
}

/* ==========================================================
   Утилиты — safe-area для iOS
   ========================================================== */

@supports (padding: max(0px)) {
  .topbar {
    padding-left: max(28px, env(safe-area-inset-left));
    padding-right: max(28px, env(safe-area-inset-right));
  }
  .hero,
  .about,
  .register,
  .footer {
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
  }
  .footer {
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }
}

/* ==========================================================
   Адаптив: планшет (≤ 900px)
   ========================================================== */

@media (max-width: 900px) {
  .decor--disko { width: clamp(180px, 38vw, 280px); right: -8%; bottom: -10%; }
  .decor--star-red { width: 80px; top: 14%; }
  .decor--star-orange { width: 70px; top: 24%; }
  .decor--about { width: 70px; }
  .decor--register { width: 60px; }

  .hero__title span:nth-child(2) { transform: translateX(4%); }

  .card { padding: 24px; box-shadow: 6px 6px 0 var(--ink); }
  .card:hover { box-shadow: 8px 8px 0 var(--ink); }

  .form { box-shadow: 6px 6px 0 var(--blue); }
  .btn--submit { box-shadow: 5px 5px 0 var(--red); }
  .btn--primary { box-shadow: 5px 5px 0 var(--ink); }
}

/* ==========================================================
   Адаптив: мобильный (≤ 600px)
   ========================================================== */

@media (max-width: 600px) {
  .topbar {
    padding: 14px 18px;
  }
  .topbar__logo { height: 36px; }
  .topbar__logo img { height: 36px; }
  .topbar__nav { gap: 10px; font-size: 14px; }
  .topbar__cta { padding: 9px 14px; }

  /* Hero */
  .hero {
    padding-top: clamp(36px, 12vw, 64px);
    padding-bottom: clamp(48px, 10vw, 80px);
  }
  .hero__title {
    line-height: 0.88;
    letter-spacing: -0.03em;
  }
  .hero__title span:nth-child(2) { transform: translateX(0); }

  .hero__subtitle { font-size: 15px; }
  .hero__accent { font-size: 26px; margin-bottom: 24px; }

  .hero__cta {
    margin-bottom: 40px;
    padding: 14px 22px;
    font-size: 16px;
  }

  /* Декор: на мобиле меньше и убираем со зон, где перекрывает текст */
  .decor--disko {
    width: clamp(140px, 50vw, 220px);
    right: -14%;
    bottom: -6%;
    opacity: 0.85;
  }
  .decor--star-red { width: 56px; top: 8%; left: 4%; }
  .decor--star-orange { width: 48px; top: 16%; right: 4%; }
  .decor--about { width: 54px; top: -22px; right: 4%; }
  .decor--register { width: 48px; top: 18px; left: 4%; }

  /* Meta */
  .hero__meta { gap: 10px; }
  .meta-item {
    min-width: 0;
    flex: 1 1 calc(33% - 10px);
    padding: 10px 12px;
  }
  .meta-item__label { font-size: 12px; }
  .meta-item__value { font-size: 17px; }

  /* About */
  .about { padding: 36px 20px; }
  .about__grid { gap: 16px; }
  .card { padding: 22px; border-radius: 24px; }
  .card h3 { font-size: 20px; margin-bottom: 10px; }
  .card p { font-size: 15px; }

  /* Section title */
  .section-title {
    text-shadow: 2px 2px 0 var(--blue);
  }
  .section-sub { font-size: 24px; }

  /* Register / Form */
  .register {
    padding: 36px 20px 64px;
  }
  .register__head { margin-bottom: 24px; }
  .form {
    border-radius: 28px;
    padding: 22px 18px;
    gap: 18px;
    box-shadow: 5px 5px 0 var(--blue);
  }
  .form .field input[type="text"] {
    font-size: 16px; /* >=16px чтобы iOS не зумил при фокусе */
    padding: 13px 14px;
  }
  .chip span {
    padding: 11px 16px;
    font-size: 14px;
  }
  .btn--submit {
    padding: 16px 22px;
    font-size: 17px;
    box-shadow: 4px 4px 0 var(--red);
  }

  /* Success */
  .success { padding: 48px 20px; }
  .success__inner { padding: 36px 22px; box-shadow: 6px 6px 0 var(--mint); }
  .success h2 { font-size: 32px; }
  .success p { font-size: 16px; }

  /* Footer */
  .footer {
    padding: 18px 20px;
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }
  .footer__accent { font-size: 20px; }
}

/* ==========================================================
   Адаптив: маленький мобильный (≤ 380px)
   ========================================================== */

@media (max-width: 380px) {
  .topbar__nav a:not(.topbar__cta) { display: none; }
  .topbar__logo img { height: 32px; }

  .hero__title { letter-spacing: -0.04em; }
  .hero__cta { width: 100%; }

  .hero__meta { flex-direction: column; }
  .meta-item { width: 100%; flex-direction: row; justify-content: space-between; }
  .meta-item__label { font-size: 12px; }

  .chips { gap: 8px; }
  .chip span { padding: 10px 14px; }

  .btn--submit { font-size: 16px; }
}

/* ==========================================================
   Доступность / уважение к настройкам пользователя
   ========================================================== */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .btn:hover { transform: none; }
  .card:hover { transform: none; }
  .chip:hover span { transform: none; }
}

/* Точные тапы — увеличиваем хит-зону на тач-устройствах */
@media (hover: none) and (pointer: coarse) {
  .btn { min-height: 48px; }
  .chip span { min-height: 44px; display: inline-flex; align-items: center; }
  .topbar__nav a { min-height: 44px; display: inline-flex; align-items: center; }
}