/* ============================================================================
   Roleblox — main.css
   Тёмная тема по умолчанию, светлая — по переключателю (html[data-theme="light"]).
   Никаких внешних шрифтов и картинок: системные шрифты, градиенты, inline-SVG.
   ========================================================================= */

/* ------------------------------------------------------------------ токены */

:root {
  color-scheme: dark;

  --accent: #00a2ff;
  --accent-strong: #0084d1;
  --accent-soft: rgba(0, 162, 255, 0.16);
  --accent-line: rgba(0, 162, 255, 0.42);

  --bg: #0b1220;
  --bg-soft: #0f1729;
  --card: #131c2e;
  --card-2: #182339;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text: #eaf1ff;
  --muted: #9db0cf;

  --good: #34d399;
  --warn: #fbbf24;
  --danger: #ff7a8f;

  --shadow-sm: 0 4px 14px rgba(3, 8, 20, 0.35);
  --shadow: 0 18px 44px rgba(3, 8, 20, 0.5);
  --shadow-glow: 0 18px 46px rgba(0, 162, 255, 0.28);

  --radius-sm: 12px;
  --radius: 16px;
  --radius-lg: 20px;

  --container: 1180px;
  --header-h: 72px;

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue',
    Arial, 'Noto Sans', 'Liberation Sans', sans-serif;

  /* Палитра изометрической сцены */
  --iso-ground-top: #1d3050;
  --iso-ground-left: #16243c;
  --iso-ground-right: #1a2a45;
  --iso-tile: rgba(122, 224, 255, 0.16);
  --iso-wall-left: #3a5178;
  --iso-wall-right: #26375a;
  --iso-chimney: #33486f;
  --iso-chimney-top: #46618e;
  --iso-roof-left: #4cc0ff;
  --iso-roof-right: #1f8fe0;
  --iso-door: #6b4520;
  --iso-window: #f5c96b;
  --iso-trunk: #4a3a26;
  --iso-leaf-left: #35c98a;
  --iso-leaf-right: #23a06c;
  --iso-char-left: #ffb02e;
  --iso-char-right: #e08e14;
  --iso-char-head: #ffd9a0;
  --iso-shadow: rgba(3, 8, 20, 0.34);
  --iso-cloud: rgba(255, 255, 255, 0.14);
  --iso-star: #ffe9a8;
}

html[data-theme='light'] {
  color-scheme: light;

  --accent: #0089e0;
  --accent-strong: #006fb8;
  --accent-soft: rgba(0, 137, 224, 0.12);
  --accent-line: rgba(0, 137, 224, 0.35);

  --bg: #f2f6fd;
  --bg-soft: #e7eefb;
  --card: #ffffff;
  --card-2: #f6f9ff;
  --border: rgba(11, 18, 32, 0.1);
  --border-strong: rgba(11, 18, 32, 0.18);

  --text: #0e1a2e;
  --muted: #566a8a;

  --good: #0f9d6b;
  --warn: #b7791f;
  --danger: #d63a55;

  --shadow-sm: 0 4px 14px rgba(20, 40, 80, 0.08);
  --shadow: 0 18px 44px rgba(20, 40, 80, 0.14);
  --shadow-glow: 0 18px 46px rgba(0, 137, 224, 0.22);

  --iso-ground-top: #d9e7ff;
  --iso-ground-left: #bcd2f2;
  --iso-ground-right: #cadcf7;
  --iso-tile: rgba(0, 120, 200, 0.16);
  --iso-wall-left: #ffffff;
  --iso-wall-right: #d3e0f5;
  --iso-chimney: #dfe9fa;
  --iso-chimney-top: #bfd1ef;
  --iso-roof-left: #63c6ff;
  --iso-roof-right: #2494dd;
  --iso-door: #b0763a;
  --iso-window: #cfe4ff;
  --iso-trunk: #9a7b53;
  --iso-leaf-left: #3fd096;
  --iso-leaf-right: #2aa878;
  --iso-char-left: #ffc258;
  --iso-char-right: #eb9a1c;
  --iso-char-head: #ffe0b2;
  --iso-shadow: rgba(30, 60, 110, 0.16);
  --iso-cloud: rgba(88, 122, 180, 0.2);
  --iso-star: #f0a91f;
}

/* -------------------------------------------------------------------- база */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1100px 560px at 12% -8%, var(--accent-soft), transparent 62%),
    radial-gradient(900px 520px at 92% 4%, rgba(122, 224, 255, 0.1), transparent 60%);
  background-repeat: no-repeat;
  overflow-x: hidden;
}

body.modal-open {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
}

h1 {
  font-size: clamp(2.1rem, 5.2vw, 3.6rem);
}

h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
}

h3 {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

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

::selection {
  background: var(--accent);
  color: #04121f;
}

/* ------------------------------------------------------------- утилиты */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.is-hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: -60px;
  z-index: 200;
  transform: translateX(-50%);
  padding: 10px 18px;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: var(--accent);
  color: #04121f;
  font-weight: 700;
  transition: top 0.18s ease;
}

.skip-link:focus {
  top: 0;
  text-decoration: none;
}

.grad {
  background-image: linear-gradient(96deg, #00a2ff, #7ae0ff 55%, #7dffc4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section {
  padding: clamp(52px, 8vw, 96px) 0;
}

.section-head {
  max-width: 720px;
  margin: 0 auto clamp(28px, 4vw, 48px);
  text-align: center;
}

.section-head--left {
  margin-left: 0;
  text-align: left;
}

.section-lead {
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  margin: 0;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 6px 14px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------- кнопки */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  --btn-border: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border: 1px solid var(--btn-border);
  border-radius: 14px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease,
    border-color 0.16s ease, opacity 0.16s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn[disabled],
.btn[aria-busy='true'] {
  opacity: 0.62;
  cursor: progress;
  transform: none;
}

.btn-primary {
  --btn-bg: linear-gradient(180deg, #2bb4ff, var(--accent) 55%, var(--accent-strong));
  --btn-fg: #04121f;
  --btn-border: transparent;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  --btn-bg: linear-gradient(180deg, #4ac0ff, #12a9ff 55%, #0089db);
}

.btn-outline {
  --btn-border: var(--border-strong);
  --btn-bg: rgba(255, 255, 255, 0.03);
}

.btn-outline:hover {
  --btn-border: var(--accent-line);
  background: var(--accent-soft);
}

.btn-ghost {
  --btn-fg: var(--text);
  --btn-bg: transparent;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.07);
}

html[data-theme='light'] .btn-ghost:hover {
  background: rgba(11, 18, 32, 0.06);
}

.btn-lg {
  padding: 15px 30px;
  font-size: 1.06rem;
  border-radius: var(--radius);
}

.btn-block {
  width: 100%;
}

.btn svg {
  width: 20px;
  height: 20px;
  flex: none;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  transition: background-color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}

.icon-btn:hover {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.icon-btn svg {
  width: 21px;
  height: 21px;
}

.linklike {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.linklike:hover {
  color: var(--accent-strong);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
}

.badge svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

/* --------------------------------------------------------------- шапка */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid transparent;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-size: 1.24rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
  flex: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(150deg, #2bb4ff, var(--accent-strong));
  box-shadow: inset 0 -3px 0 rgba(3, 8, 20, 0.28), var(--shadow-sm);
  transform: rotate(-8deg);
}

.brand-mark::before {
  content: '';
  position: absolute;
  inset: 29%;
  border-radius: 5px;
  background: #04121f;
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.22);
}

.brand-mark::after {
  content: '';
  position: absolute;
  top: 14%;
  left: 16%;
  width: 26%;
  height: 26%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.75);
}

.brand-text span {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: auto;
}

.main-nav a {
  padding: 9px 13px;
  border-radius: 11px;
  color: var(--muted);
  font-size: 0.97rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.16s ease, background-color 0.16s ease;
}

.main-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

html[data-theme='light'] .main-nav a:hover {
  background: rgba(11, 18, 32, 0.05);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.auth-guest,
.auth-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-chip {
  display: inline-flex;
  align-items: center;
  max-width: 170px;
  overflow: hidden;
  padding: 7px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-burger {
  display: none;
}

.nav-burger svg {
  width: 22px;
  height: 22px;
}

/* Дублирующие кнопки входа внутри мобильного меню. */
.nav-mobile-auth {
  display: none;
}

/* ---------------------------------------------------------------- hero */

.hero {
  position: relative;
  padding: clamp(38px, 6vw, 78px) 0 clamp(44px, 7vw, 92px);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 620px;
  background:
    radial-gradient(520px 320px at 22% 34%, var(--accent-soft), transparent 70%),
    radial-gradient(420px 300px at 82% 18%, rgba(125, 255, 196, 0.12), transparent 72%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(26px, 4vw, 56px);
}

.hero-copy h1 {
  margin-bottom: 18px;
}

.hero-lead {
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.7vw, 1.18rem);
  margin-bottom: 26px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-art {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.iso-scene {
  width: 100%;
  max-width: 560px;
  height: auto;
  overflow: visible;
  transform: perspective(1000px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg));
  transform-style: preserve-3d;
  transition: transform 0.35s ease-out;
  filter: drop-shadow(0 26px 34px rgba(3, 8, 20, 0.34));
  animation: rb-float 7s ease-in-out infinite;
}

.iso-ground-top { fill: var(--iso-ground-top); }
.iso-ground-left { fill: var(--iso-ground-left); }
.iso-ground-right { fill: var(--iso-ground-right); }
.iso-tile { stroke: var(--iso-tile); stroke-width: 1.5; fill: none; }
.iso-shadow { fill: var(--iso-shadow); }
.iso-wall-left { fill: var(--iso-wall-left); }
.iso-wall-right { fill: var(--iso-wall-right); }
.iso-chimney { fill: var(--iso-chimney); }
.iso-chimney-top { fill: var(--iso-chimney-top); }
.iso-roof-left { fill: var(--iso-roof-left); }
.iso-roof-right { fill: var(--iso-roof-right); }
.iso-door { fill: var(--iso-door); }
.iso-window { fill: var(--iso-window); }
.iso-trunk { fill: var(--iso-trunk); }
.iso-leaf-left { fill: var(--iso-leaf-left); }
.iso-leaf-right { fill: var(--iso-leaf-right); }
.iso-char-left { fill: var(--iso-char-left); }
.iso-char-right { fill: var(--iso-char-right); }
.iso-char-head { fill: var(--iso-char-head); }
.iso-star { fill: var(--iso-star); opacity: 0.85; }
.iso-cloud { fill: var(--iso-cloud); }
.iso-face { fill: #24304a; }
.iso-face-stroke {
  fill: none;
  stroke: #24304a;
  stroke-width: 2.4;
  stroke-linecap: round;
}

/* --------------------------------------------------------- ленточка цифр */

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(30px, 5vw, 54px);
}

.stat {
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card), var(--card-2));
  box-shadow: var(--shadow-sm);
}

.stat-value {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.stat-label {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* --------------------------------------------------------- возможности */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card {
  position: relative;
  padding: 26px 24px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--card), var(--card-2));
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature-card::after {
  content: '';
  position: absolute;
  inset: auto -30% -60% -30%;
  height: 150px;
  background: radial-gradient(closest-side, var(--accent-soft), transparent);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow);
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  border-radius: 15px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
}

.feature-icon svg {
  width: 27px;
  height: 27px;
}

.feature-title {
  margin-bottom: 8px;
  font-size: 1.18rem;
}

.feature-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

/* ------------------------------------------------------------ как начать */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 26px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--card), var(--card-2));
  box-shadow: var(--shadow-sm);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: linear-gradient(150deg, #2bb4ff, var(--accent-strong));
  color: #04121f;
  font-size: 1.2rem;
  font-weight: 800;
  box-shadow: var(--shadow-glow);
}

.step-title {
  margin-bottom: 6px;
  font-size: 1.14rem;
}

.step-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

/* -------------------------------------------------------------- родителям */

.parents {
  position: relative;
}

.parents-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(26px, 4vw, 46px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--card), var(--bg-soft));
  box-shadow: var(--shadow);
}

.parents-list {
  padding: 0;
  margin: 0 0 22px;
  list-style: none;
}

.parents-list li {
  position: relative;
  padding: 0 0 0 32px;
  margin-bottom: 12px;
  color: var(--muted);
}

.parents-list li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 9px;
  width: 10px;
  height: 6px;
  border-left: 3px solid var(--accent);
  border-bottom: 3px solid var(--accent);
  transform: rotate(-45deg);
}

.parents-aside {
  padding: 22px;
  border: 1px dashed var(--accent-line);
  border-radius: var(--radius);
  background: var(--accent-soft);
}

.parents-aside h3 {
  font-size: 1.05rem;
}

.parents-aside p {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
}

.parents-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ------------------------------------------------------------- CTA-полоса */

.cta-band {
  padding: clamp(30px, 5vw, 52px);
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 220px at 15% 10%, var(--accent-soft), transparent 70%),
    linear-gradient(140deg, var(--card), var(--card-2));
  box-shadow: var(--shadow);
  text-align: center;
}

.cta-band h2 {
  margin-bottom: 10px;
}

.cta-band p {
  max-width: 620px;
  margin: 0 auto 24px;
  color: var(--muted);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ---------------------------------------------------------------- футер */

.site-footer {
  margin-top: clamp(40px, 6vw, 80px);
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: clamp(30px, 4vw, 48px) 0 22px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 26px;
}

.footer-brand p {
  max-width: 320px;
  color: var(--muted);
  font-size: 0.94rem;
}

.footer-title {
  margin: 0 0 14px;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer-links {
  padding: 0;
  margin: 0;
  list-style: none;
}

.footer-links li {
  margin-bottom: 9px;
}

.footer-links a {
  color: var(--text);
  font-size: 0.96rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.footer-links .linklike {
  font-size: 0.96rem;
}

.footer-note {
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

/* ------------------------------------------------------- баннер родителя */

.parental-banner {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 18px 22px;
  border: 1px solid var(--warn);
  border-left-width: 6px;
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(251, 191, 36, 0.16), rgba(251, 191, 36, 0.04));
  box-shadow: var(--shadow-sm);
}

.parental-banner-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  flex: none;
  border-radius: 14px;
  background: rgba(251, 191, 36, 0.2);
  color: var(--warn);
}

.parental-banner-icon svg {
  width: 26px;
  height: 26px;
}

.parental-banner-body {
  flex: 1 1 auto;
  min-width: 0;
}

.parental-banner-body strong {
  display: block;
  font-size: 1.06rem;
}

.parental-banner-body p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.parental-banner-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex: none;
}

.banner-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  text-align: right;
}

/* ---------------------------------------------------------------- модалки */

.modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(4, 9, 20, 0.68);
  backdrop-filter: blur(6px);
  overflow-y: auto;
}

.modal.is-open {
  display: flex;
  animation: rb-fade 0.18s ease-out;
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 460px;
  margin: auto;
  padding: 26px 26px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow);
  animation: rb-pop 0.2s ease-out;
}

.modal-card--wide {
  max-width: 760px;
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.modal-title {
  margin: 0;
  font-size: 1.5rem;
}

.modal-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.modal-close {
  flex: none;
  width: 40px;
  height: 40px;
}

.modal-foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.93rem;
  text-align: center;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
}

.modal-terms-text {
  max-height: min(56vh, 460px);
  overflow-y: auto;
  padding: 4px 16px 4px 2px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.96rem;
}

.modal-terms-text h3 {
  margin-top: 18px;
  color: var(--text);
  font-size: 1.02rem;
}

.modal-terms-text h3:first-child {
  margin-top: 8px;
}

.modal-terms-text ul {
  padding-left: 20px;
  margin: 0 0 12px;
}

.modal-terms-text li {
  margin-bottom: 6px;
}

/* ---------------------------------------------------------------- формы */

.form {
  display: block;
}

.form-alert {
  display: block;
  margin-bottom: 16px;
  padding: 12px 16px;
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  background: rgba(255, 122, 143, 0.12);
  color: var(--danger);
  font-size: 0.94rem;
  font-weight: 600;
}

.form-alert.is-success {
  border-color: var(--good);
  background: rgba(52, 211, 153, 0.12);
  color: var(--good);
}

.field {
  margin-bottom: 16px;
}

.field-label {
  display: block;
  margin-bottom: 7px;
  font-size: 0.93rem;
  font-weight: 700;
}

.field-hint {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.field-input {
  display: block;
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text);
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}

.field-input::placeholder {
  color: var(--muted);
  opacity: 0.75;
}

.field-input:hover {
  border-color: var(--accent-line);
}

.field-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  background: var(--card);
}

.field.has-error .field-input {
  border-color: var(--danger);
  box-shadow: 0 0 0 4px rgba(255, 122, 143, 0.14);
}

.field-error {
  margin: 7px 0 0;
  color: var(--danger);
  font-size: 0.87rem;
  font-weight: 600;
}

.field-group {
  padding: 15px;
  margin-bottom: 16px;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
}

.field-group .field {
  margin-bottom: 0;
}

.field-group-title {
  margin: 0 0 4px;
  font-size: 0.98rem;
  font-weight: 800;
}

.field-group .field-hint {
  margin-bottom: 12px;
}

/* переключатель пола */

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 5px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
}

.seg {
  position: relative;
  display: block;
  cursor: pointer;
}

.seg input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}

.seg span {
  display: block;
  padding: 10px 8px;
  border-radius: 10px;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--muted);
  transition: background-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
}

.seg input:checked + span {
  background: var(--accent);
  color: #04121f;
  box-shadow: var(--shadow-sm);
}

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

/* чекбокс */

.check-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
  margin-bottom: 4px;
}

.check {
  position: relative;
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.93rem;
}

.check input {
  position: absolute;
  top: 3px;
  left: 0;
  width: 20px;
  height: 20px;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.check-box {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--bg-soft);
  transition: background-color 0.16s ease, border-color 0.16s ease;
}

.check-box::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2.5px solid #04121f;
  border-bottom: 2.5px solid #04121f;
  transform: rotate(42deg) scale(0);
  transition: transform 0.14s ease;
}

.check input:checked + .check-box {
  border-color: var(--accent);
  background: var(--accent);
}

.check input:checked + .check-box::after {
  transform: rotate(42deg) scale(1);
}

.check input:focus-visible + .check-box {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.field.has-error .check-box {
  border-color: var(--danger);
}

/* -------------------------------------------------------------- отзывчивость */

@media (max-width: 1040px) {
  .features-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-art {
    order: -1;
  }

  .iso-scene {
    max-width: 440px;
  }

  .parents-card {
    grid-template-columns: 1fr;
  }

  .stats-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .parental-banner {
    flex-wrap: wrap;
  }

  .parental-banner-actions {
    align-items: flex-start;
    width: 100%;
  }

  .banner-status {
    text-align: left;
  }
}

@media (max-width: 780px) {
  .nav-burger {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 12px 14px;
    font-size: 1rem;
  }

  .nav-mobile-auth {
    display: grid;
    gap: 8px;
    margin-top: 8px;
  }

  .header-inner {
    position: relative;
    flex-wrap: wrap;
    gap: 10px;
  }

  .header-actions {
    gap: 8px;
  }

  .auth-guest .btn-ghost {
    display: none;
  }

  .user-chip {
    display: none;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }
  .features-grid,
  .steps,
  .stats-strip,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions .btn,
  .cta-actions .btn,
  .parents-actions .btn {
    width: 100%;
  }

  .modal {
    padding: 10px;
    align-items: flex-start;
  }

  .modal-card {
    padding: 20px 18px;
    border-radius: var(--radius);
  }

  .modal-actions .btn {
    width: 100%;
  }

  .modal-terms-text {
    max-height: 52vh;
  }
}

@media (max-width: 480px) {
  .header-actions .btn {
    padding: 10px 14px;
    font-size: 0.9rem;
    border-radius: 12px;
  }

  .brand {
    font-size: 1.1rem;
    gap: 9px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 10px;
  }
}

/* ---------------------------------------------------- страница соглашения */
.legal-hero {
  padding: clamp(34px, 6vw, 64px) 0 clamp(18px, 3vw, 28px);
}

.legal-hero h1 {
  margin-bottom: 12px;
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.legal-layout {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
  padding-bottom: clamp(40px, 6vw, 80px);
}

.legal-toc {
  position: sticky;
  top: calc(var(--header-h) + 18px);
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card), var(--card-2));
  box-shadow: var(--shadow-sm);
}

.legal-toc h2 {
  margin-bottom: 12px;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.legal-toc ol {
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: toc;
}

.legal-toc li {
  counter-increment: toc;
  margin-bottom: 4px;
}

.legal-toc a {
  display: block;
  padding: 7px 10px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
  transition: background-color 0.16s ease, color 0.16s ease;
}

.legal-toc a::before {
  content: counter(toc) '. ';
  color: var(--accent);
  font-weight: 700;
}

.legal-toc a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.legal-toc a.is-active {
  color: var(--text);
  background: var(--accent-soft);
  font-weight: 700;
}

.legal-body {
  padding: clamp(24px, 3vw, 38px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.legal-section {
  padding-top: 8px;
  margin-bottom: 34px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.legal-section:last-child {
  margin-bottom: 0;
}

.legal-section h2 {
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border);
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
}

.legal-body p,
.legal-body li {
  color: var(--muted);
}

.legal-body strong {
  color: var(--text);
}

.legal-body ul,
.legal-body ol {
  padding-left: 22px;
  margin: 0 0 14px;
}

.legal-body li {
  margin-bottom: 8px;
}

.legal-note {
  padding: 16px 18px;
  margin: 0 0 20px;
  border: 1px solid var(--accent-line);
  border-left-width: 5px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
}

.legal-note p {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
}

.legal-back {
  margin-top: 26px;
}

@media (max-width: 900px) {
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .legal-toc {
    position: static;
  }

  .legal-toc ol {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2px 10px;
  }
}

@media (max-width: 520px) {
  .legal-toc ol {
    grid-template-columns: 1fr;
  }
}

/* ----------------------------------------------------------- анимации */

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  will-change: opacity, transform;
}

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

.d1 { transition-delay: 0.06s; }
.d2 { transition-delay: 0.12s; }
.d3 { transition-delay: 0.18s; }
.d4 { transition-delay: 0.24s; }
.d5 { transition-delay: 0.3s; }
.d6 { transition-delay: 0.36s; }

@keyframes rb-float {
  0%, 100% { transform: perspective(1000px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translateY(0); }
  50% { transform: perspective(1000px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translateY(-12px); }
}

@keyframes rb-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes rb-pop {
  from { opacity: 0; transform: translateY(14px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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