/* Pathway — сайт приложения. Токены из дизайн-системы приложения (палитра
   «Фирменная»): тёмная тема всегда, никаких box-shadow, глубина — границами
   и яркостью поверхностей. Градиент логотипа — только на тропе. */

@font-face { font-family: 'Manrope'; src: url('../fonts/Manrope_400Regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Manrope'; src: url('../fonts/Manrope_500Medium.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Manrope'; src: url('../fonts/Manrope_700Bold.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Unbounded'; src: url('../fonts/Unbounded_500Medium.woff2') format('woff2'); font-weight: 500; font-display: swap; }

:root {
  --bg: #0A0F1A;
  --surface: #111826;
  --surface-raised: #172134;
  --border: #233047;
  --text: #EEF3FA;
  --text-secondary: #9BA8BD;
  --text-tertiary: #7A879E;
  --accent: #2F86FF;
  --accent-fill: #1A6FF0;
  --accent-fill-pressed: #155CC8;
  --accent-muted: #10213D;
  --trail-dots: #2E3B53;
  --trail: linear-gradient(90deg, #1471FD, #30D6F4 55%, #4BE39D);

  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px;
  --s-5: 24px; --s-6: 32px; --s-7: 48px; --s-8: 64px; --s-9: 96px;
  --r-s: 12px; --r-m: 16px; --r-l: 20px; --r-xl: 28px;

  --display: 'Unbounded', system-ui, sans-serif;
  --body: 'Manrope', system-ui, sans-serif;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --t-fast: 80ms; --t-base: 200ms; --t-slow: 400ms;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  background: var(--bg);
  color: var(--text);
  font: 500 16px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
.num { font-variant-numeric: tabular-nums; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 var(--s-5); }

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  height: 56px; padding: 0 var(--s-5);
  border-radius: var(--r-l);
  font: 700 17px/1 var(--body);
  transition: background var(--t-base) var(--ease), transform var(--t-fast) var(--ease), color var(--t-base) var(--ease);
}
.btn svg { fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.btn:active { transform: scale(0.96); }
.btn--primary { background: var(--accent-fill); color: #FFFFFF; }
.btn--primary:hover { background: var(--accent-fill-pressed); }
.btn--ghost { border: 1px solid var(--border); color: var(--text-secondary); font-weight: 500; }
.btn--ghost:hover { background: var(--surface); color: var(--text); }
.btn--small { height: 40px; padding: 0 var(--s-4); border-radius: var(--r-s); font-size: 14px; }
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- Шапка ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 20;
  border-bottom: 1px solid transparent;
  transition: background var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.header.is-scrolled, .header.is-open {
  background: rgba(10, 15, 26, 0.9);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}
.header__inner {
  max-width: 1160px; margin: 0 auto;
  padding: var(--s-3) var(--s-5);
  display: flex; align-items: center; gap: var(--s-5);
}
.header__brand { display: flex; align-items: center; gap: var(--s-2); margin-right: auto; }
.header__name { font: 500 19px/1 var(--display); letter-spacing: -0.2px; }
.header__nav { display: flex; gap: var(--s-5); }
.header__nav a { color: var(--text-secondary); font-size: 14px; transition: color var(--t-base) var(--ease); }
.header__nav a:hover { color: var(--text); }
.header__burger {
  display: none; flex-direction: column; gap: 5px;
  width: 44px; height: 44px; align-items: center; justify-content: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: 50%;
  cursor: pointer;
}
.header__burger span { width: 18px; height: 2px; background: var(--text); border-radius: 1px; }

/* ---------- Hero ---------- */
.hero { padding: 132px 0 var(--s-8); overflow: hidden; }
.hero__inner {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--s-7); align-items: center;
  min-height: calc(100svh - 196px);
}
.eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--accent); margin-bottom: var(--s-4);
}
.hero__title {
  font: 500 clamp(38px, 6vw, 72px)/1.08 var(--display);
  letter-spacing: -0.03em;
  margin-bottom: var(--s-5);
}
.hero__lead { max-width: 560px; color: var(--text-secondary); font-size: 18px; margin-bottom: var(--s-6); }
.hero__actions { display: flex; gap: var(--s-3); flex-wrap: wrap; margin-bottom: var(--s-4); }
.hero__meta { color: var(--text-tertiary); font-size: 14px; }

.hero__visual { position: relative; display: flex; justify-content: center; }
.logo-anim { width: min(420px, 100%); height: auto; overflow: visible; position: relative; z-index: 1; }
.hero__trail {
  position: absolute; left: -10%; right: -10%; bottom: 4%; width: 120%; height: 40%;
  opacity: 0.6; z-index: 0;
}
.trail-dots { fill: none; stroke: var(--trail-dots); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 0.1 9; }

@media (prefers-reduced-motion: no-preference) {
  .cascade { opacity: 0; transform: translateY(16px); animation: cascade-in 600ms var(--ease) forwards; }
  .cascade:nth-child(2) { animation-delay: 100ms; }
  .cascade:nth-child(3) { animation-delay: 200ms; }
  .cascade:nth-child(4) { animation-delay: 300ms; }
  .cascade:nth-child(5) { animation-delay: 400ms; }
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease); }
  .reveal.is-visible { opacity: 1; transform: none; }
}
@keyframes cascade-in { to { opacity: 1; transform: none; } }

/* ---------- Секции ---------- */
.section { padding: var(--s-9) 0; }
.section--surface { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section__title {
  font: 500 clamp(28px, 4vw, 44px)/1.15 var(--display);
  letter-spacing: -0.02em;
  margin-bottom: var(--s-4);
}
.section__lead { color: var(--text-secondary); font-size: 18px; max-width: 620px; margin-bottom: var(--s-7); }

/* ---------- Шаги ---------- */
.steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); padding-top: var(--s-6); }
.steps__trail { position: absolute; top: 0; left: 0; width: 100%; height: 40px; overflow: visible; }
/* Без vector-effect: с ним браузер считает штрих в пикселях экрана, а не в
   pathLength, и анимация прорисовки съезжает. */
.steps__dots { fill: none; stroke: var(--trail-dots); stroke-width: 4; stroke-linecap: round; stroke-dasharray: 0.1 14; }
.steps__line {
  fill: none; stroke: url(#st-grad); stroke-width: 4; stroke-linecap: round;
  stroke-dasharray: 100 100; stroke-dashoffset: 100;
  transition: stroke-dashoffset 1400ms var(--ease);
}
.steps.is-drawn .steps__line { stroke-dashoffset: 0; }
.step {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-l);
  padding: var(--s-5);
}
.step__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent-muted); color: var(--accent);
  font: 500 18px/1 var(--display);
  margin-bottom: var(--s-4);
}
.step h3 { font-size: 20px; font-weight: 700; margin-bottom: var(--s-2); }
.step p { color: var(--text-secondary); }

/* ---------- Возможности ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-4); margin-top: var(--s-6); }
.feature {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-l);
  padding: var(--s-5);
}
.feature svg {
  width: 28px; height: 28px; margin-bottom: var(--s-4);
  fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.feature h3 { font-size: 18px; font-weight: 700; margin-bottom: var(--s-2); }
.feature p { color: var(--text-secondary); font-size: 15px; }

/* ---------- Экраны ---------- */
.screens {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--s-4);
  margin-top: var(--s-6);
}
.screen img {
  width: 100%; border-radius: var(--r-xl);
  border: 1px solid var(--border);
  background: var(--surface);
}
.screen figcaption { margin-top: var(--s-3); text-align: center; color: var(--text-secondary); font-size: 14px; }

/* ---------- Скачать ---------- */
.download { display: grid; grid-template-columns: auto 1fr; gap: var(--s-6); align-items: start; max-width: 860px; }
.download__logo { width: 112px; height: 112px; }
.download__meta { color: var(--text-tertiary); margin-bottom: var(--s-5); }
.install {
  margin: var(--s-6) 0 var(--s-5); padding-left: var(--s-5);
  color: var(--text-secondary);
  display: grid; gap: var(--s-2);
}
.install li::marker { color: var(--accent); font-weight: 700; }
.download__note { color: var(--text-tertiary); font-size: 14px; }
.download__note code {
  display: block; margin-top: var(--s-2);
  font: 500 12px/1.5 ui-monospace, Consolas, monospace;
  color: var(--text-secondary); word-break: break-all;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-s);
  padding: var(--s-2) var(--s-3);
}

/* ---------- Подвал ---------- */
.footer { padding: var(--s-6) 0; border-top: 1px solid var(--border); }
.footer__inner { display: flex; align-items: center; gap: var(--s-4); flex-wrap: wrap; color: var(--text-tertiary); font-size: 14px; }
.footer__inner a { color: var(--text-secondary); transition: color var(--t-base) var(--ease); }
.footer__inner a:hover { color: var(--text); }
.footer__inner span { margin-right: auto; }

/* ---------- Политика ---------- */
.doc { max-width: 720px; padding: 120px var(--s-5) var(--s-8); margin: 0 auto; }
.doc h1 { font: 500 clamp(28px, 4vw, 40px)/1.15 var(--display); letter-spacing: -0.02em; margin-bottom: var(--s-3); }
.doc h2 { font-size: 20px; font-weight: 700; margin: var(--s-6) 0 var(--s-2); }
.doc p, .doc li { color: var(--text-secondary); margin-bottom: var(--s-3); }
.doc ul { padding-left: var(--s-5); }
.doc .updated { color: var(--text-tertiary); font-size: 14px; }
.doc a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Адаптив ---------- */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; min-height: 0; gap: var(--s-6); }
  .hero__visual { order: -1; }
  .logo-anim { width: min(300px, 80%); }
  .steps, .features { grid-template-columns: 1fr 1fr; }
  .steps__trail { display: none; }
  .screens { grid-template-columns: repeat(5, 62%); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: var(--s-3); }
  .screen { scroll-snap-align: start; }
}
@media (max-width: 720px) {
  .header__nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: var(--s-2) var(--s-5) var(--s-4);
    display: none;
  }
  .header__nav.is-open { display: flex; }
  .header__nav a { padding: var(--s-3) 0; font-size: 16px; }
  .header__cta { display: none; }
  .header__burger { display: flex; }
  .hero { padding-top: 104px; }
  .steps, .features { grid-template-columns: 1fr; }
  .section { padding: var(--s-8) 0; }
  .download { grid-template-columns: 1fr; }
  .download__logo { width: 88px; height: 88px; }
  .footer__inner span { margin-right: 0; width: 100%; }
}