/* Octopus AI landing page. Same language as the app: warm black, dots, numbered tiles. */

@font-face { font-family: "Doto"; font-weight: 100 900; font-display: swap; src: url("fonts/doto-latin-wght-normal.woff2") format("woff2-variations"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; }
@font-face { font-family: "Onest"; font-weight: 100 900; font-display: swap; src: url("fonts/onest-latin-wght-normal.woff2") format("woff2-variations"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; }
@font-face { font-family: "Onest"; font-weight: 100 900; font-display: swap; src: url("fonts/onest-cyrillic-wght-normal.woff2") format("woff2-variations"); unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "JetBrains Mono"; font-weight: 100 800; font-display: swap; src: url("fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2-variations"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; }
@font-face { font-family: "JetBrains Mono"; font-weight: 100 800; font-display: swap; src: url("fonts/jetbrains-mono-cyrillic-wght-normal.woff2") format("woff2-variations"); unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }

:root {
  color-scheme: dark;
  --bg: #12100e;
  --panel: #181614;
  --panel-2: #1e1b19;
  --line: #262320;
  --line-2: #34302b;
  --dot: #3a3632;
  --ink: #eee9e2;
  --ink-2: #c9c3ba;
  --ink-3: #a39d94;
  --accent: #ff3d2e;
  --accent-soft: rgba(255, 61, 46, 0.12);
  --sans: "Onest", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --dot-font: "Doto", var(--mono);
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(255, 61, 46, 0.16), transparent 70%),
    radial-gradient(circle, var(--dot) 1px, transparent 1.4px) 0 0 / 28px 28px;
  -webkit-mask-image: linear-gradient(#000 0, #000 560px, transparent 900px);
  mask-image: linear-gradient(#000 0, #000 560px, transparent 900px);
  opacity: 0.55;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.wrap { width: min(var(--wrap), calc(100% - 40px)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 8px; z-index: 20; }
.skip:focus { left: 12px; }

/* ---- header ---- */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(18, 16, 14, 0.78); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 12px; font: 700 20px/1 var(--dot-font); letter-spacing: 0.06em; }
.brand svg { width: 28px; height: 31px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-size: 15px; color: var(--ink-3); }
.nav-links a:hover { color: var(--ink); }
.lang { display: flex; font: 500 12px/1 var(--mono); letter-spacing: 0.08em; border: 1px solid var(--line-2); border-radius: 999px; padding: 3px; }
.lang a, .lang span { padding: 6px 10px; border-radius: 999px; color: var(--ink-3); }
.lang span { background: var(--ink); color: var(--bg); }
.lang a:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; gap: 10px; height: 46px; padding: 0 22px; border-radius: 999px; font: 600 15px/1 var(--sans); border: 1px solid var(--line-2); color: var(--ink); background: var(--panel); transition: transform 0.15s, border-color 0.15s, background 0.15s; cursor: pointer; }
.btn:hover { border-color: var(--ink-3); transform: translateY(-1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #12100e; }
.btn.primary:hover { background: #ff5546; border-color: #ff5546; }
.btn.small { height: 38px; padding: 0 16px; font-size: 14px; }
.btn[aria-disabled="true"] { background: transparent; border: 1px dashed var(--line-2); color: var(--ink-3); cursor: default; pointer-events: none; }
.btn svg { width: 18px; height: 18px; fill: currentColor; }

/* ---- hero ---- */
.hero { padding: 84px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }
.eyebrow { font: 500 13px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin: 0 0 22px; }
h1 { font: 700 clamp(38px, 5.4vw, 64px)/1.04 var(--sans); letter-spacing: -0.025em; margin: 0 0 22px; text-wrap: balance; }
h1 em { font-style: normal; color: var(--accent); }
.lede { font-size: 19px; color: var(--ink-2); max-width: 36em; margin: 0 0 32px; text-wrap: pretty; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-art { display: grid; place-items: center; }
.hero-art svg { width: min(360px, 78%); height: auto; filter: drop-shadow(0 0 60px rgba(255, 61, 46, 0.22)); }
.orbit { transform-origin: 100px 80px; animation: spin 36s linear infinite; }
.eye { animation: blink 5s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes blink { 0%, 92%, 100% { transform: scaleY(1); } 95% { transform: scaleY(0.1); } }

.shot { margin: 56px auto 0; position: relative; }
.shot::before { content: ""; position: absolute; inset: 8% 6% -6%; background: radial-gradient(60% 60% at 50% 40%, rgba(255, 61, 46, 0.22), transparent 70%); filter: blur(30px); z-index: -1; }
.shot img { width: 100%; height: auto; border-radius: 18px; border: 1px solid var(--line-2); box-shadow: 0 40px 90px rgba(0, 0, 0, 0.55); }

/* ---- sections ---- */
section { padding: 92px 0 0; }
.kicker { font: 500 13px/1 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 16px; }
.kicker b { color: var(--accent); font-weight: 500; margin-right: 10px; }
h2 { font: 700 clamp(28px, 3.6vw, 42px)/1.12 var(--sans); letter-spacing: -0.02em; margin: 0 0 16px; text-wrap: balance; }
.sub { color: var(--ink-2); max-width: 40em; margin: 0 0 44px; text-wrap: pretty; }

.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tile { background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line); border-radius: 20px; padding: 26px 26px 28px; box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3); transition: border-color 0.2s, transform 0.2s; }
.tile:hover { border-color: var(--line-2); transform: translateY(-2px); }
.tile .no { font: 500 13px/1 var(--mono); color: var(--ink-3); letter-spacing: 0.1em; margin-bottom: 38px; display: flex; justify-content: space-between; }
.tile .no i { font-style: normal; color: var(--accent); }
.tile h3 { font: 650 20px/1.25 var(--sans); margin: 0 0 10px; }
.tile p { margin: 0; color: var(--ink-3); font-size: 15.5px; line-height: 1.55; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.step { position: relative; padding: 4px 0 0 0; }
.step .n { font: 700 64px/1 var(--dot-font); color: var(--ink); margin-bottom: 18px; }
.step h3 { font: 650 20px/1.25 var(--sans); margin: 0 0 8px; }
.step p { margin: 0; color: var(--ink-3); font-size: 15.5px; max-width: 28em; }
.step::after { content: ""; position: absolute; left: 0; right: 24px; top: 78px; height: 0; }

.code { background: var(--panel); border: 1px solid var(--line-2); border-radius: 18px; padding: 22px 24px; font: 400 14.5px/1.8 var(--mono); position: relative; overflow-x: auto; }
.code .c { color: var(--ink-3); }
.code .p { color: var(--accent); user-select: none; }
.copy { position: absolute; top: 14px; right: 14px; font: 500 12px/1 var(--mono); letter-spacing: 0.06em; background: var(--panel-2); color: var(--ink-2); border: 1px solid var(--line-2); border-radius: 999px; padding: 8px 12px; cursor: pointer; }
.copy:hover { color: var(--ink); border-color: var(--ink-3); }
.note { color: var(--ink-3); font-size: 15px; margin-top: 18px; }
.note a, .sub a, .foot a.u { color: var(--ink); border-bottom: 1px solid var(--line-2); }
.note a:hover, .sub a:hover { border-color: var(--accent); }

.support { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 16px; }
.card { background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line); border-radius: 22px; padding: 34px; }
.card h3 { font: 650 22px/1.25 var(--sans); margin: 0 0 12px; }
.card p { margin: 0 0 22px; color: var(--ink-2); }
.card .cta { margin-top: 4px; }
.goal { display: flex; flex-direction: column; gap: 14px; margin: 0; padding: 0; list-style: none; }
.goal li { position: relative; padding-left: 24px; color: var(--ink-2); font-size: 15.5px; }
.goal li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }

footer { margin-top: 110px; border-top: 1px solid var(--line); padding: 34px 0 56px; color: var(--ink-3); font-size: 14.5px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; }
footer .brand { font-size: 16px; color: var(--ink); }
footer .brand svg { width: 20px; height: 22px; }
footer .links { display: flex; flex-wrap: wrap; gap: 6px 22px; margin-left: auto; }
footer a:hover { color: var(--ink); }

@media (max-width: 900px) {
  .hero { padding-top: 52px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; justify-items: start; }
  .hero-art svg { width: 170px; }
  .tiles, .steps { grid-template-columns: 1fr 1fr; }
  .support { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .lang { margin-left: auto; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .tiles, .steps { grid-template-columns: 1fr; }
  .nav .btn { display: none; }
  .step .n { font-size: 52px; }
  .card { padding: 26px; }
  .cta .btn { flex: 1 1 100%; justify-content: center; }
  footer .links { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .orbit, .eye { animation: none; }
  .tile, .btn { transition: none; }
}