/* www.sinep.dev: the app's own palette (webui/assets/styles.css), dark first, light on request. */
@font-face { font-family: "JB Mono"; src: url("/assets/jbmono-regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "JB Mono"; src: url("/assets/jbmono-800-latin.woff2") format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+0000-00FF, U+2010-205F; }
@font-face { font-family: "JB Mono"; src: url("/assets/jbmono-800-latin-ext.woff2") format("woff2"); font-weight: 800; font-display: swap; unicode-range: U+0100-024F, U+1E00-1EFF; }

:root {
  color-scheme: dark;
  --void: #0a0b0d;
  --ink: #111216;
  --graphite: #15161b;
  --raised: #1c1d23;
  --line: #26282f;
  --line-plus: #3a3c44;
  --ash: #8a8d96;
  --bone: #f2efe8;
  --signal: #ff6b2c;
  --signal-hover: #ff8a55;
  --ok: #3fd68a;
  --fail: #ff4f6e;
  --r-control: 10px;
  --r-card: 16px;
  --mono: "JB Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
html, body { overflow-x: clip; }
body { margin: 0; background: var(--void); color: var(--bone); font: 17px/1.6 var(--sans); overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--signal); text-decoration: none; }
a:hover { color: var(--signal-hover); text-decoration: underline; }
h1, h2, h3 { font-family: var(--mono); font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 16px; text-wrap: balance; overflow-wrap: break-word; hyphens: auto; }
h1 { font-size: clamp(34px, 5.6vw, 64px); }
h2 { font-size: clamp(26px, 3.4vw, 40px); }
h3 { font-size: 19px; letter-spacing: -0.01em; }
p { margin: 0 0 16px; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 100; background: var(--signal); color: var(--void); padding: 8px 14px; border-radius: 8px; }

.eyebrow { font: 600 13px/1 var(--mono); letter-spacing: 0.14em; color: var(--signal); margin-bottom: 18px; }
.lead { font-size: clamp(18px, 1.6vw, 21px); color: #c9c6bf; max-width: 640px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 24px; border-radius: 999px; font: 700 16px/1 var(--sans); border: 1px solid transparent; cursor: pointer; text-decoration: none; transition: background .15s, border-color .15s, color .15s; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--signal); color: #111216; }
.btn-primary:hover { background: var(--signal-hover); color: #111216; }
.btn-ghost { border-color: var(--line-plus); color: var(--bone); }
.btn-ghost:hover { border-color: var(--bone); color: var(--bone); }
.btn-sm { min-height: 38px; padding: 0 16px; font-size: 14px; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* header */
.top { position: sticky; top: 0; z-index: 50; background: rgba(10, 11, 13, .82); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid var(--line); }
.top-in { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); height: 68px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--bone); font: 800 20px/1 var(--mono); letter-spacing: -0.03em; }
.brand:hover { color: var(--bone); text-decoration: none; }
.brand img { border-radius: 8px; }
.brand b { color: var(--signal); font-weight: 800; }
.nav { display: flex; gap: 26px; margin-right: auto; }
.nav a { color: var(--ash); font-size: 15px; font-weight: 600; }
.nav a:hover { color: var(--bone); text-decoration: none; }
.top-end { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.lang { position: relative; }
.lang summary { list-style: none; cursor: pointer; font: 600 13px/1 var(--mono); color: var(--ash); padding: 10px; border-radius: 8px; border: 1px solid var(--line); min-width: 44px; text-align: center; }
.lang summary::-webkit-details-marker { display: none; }
.lang summary:hover, .lang[open] summary { color: var(--bone); border-color: var(--line-plus); }
.lang-menu { position: absolute; right: 0; top: calc(100% + 8px); background: var(--ink); border: 1px solid var(--line-plus); border-radius: 12px; padding: 6px; display: grid; min-width: 160px; box-shadow: 0 18px 40px rgba(0, 0, 0, .5); }
.lang-menu a { color: var(--bone); padding: 9px 12px; border-radius: 8px; font-size: 15px; }
.lang-menu a:hover { background: var(--raised); text-decoration: none; }
.lang-menu a[aria-current] { color: var(--signal); }
.menu { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px; background: none; cursor: pointer; padding: 0 12px; flex-direction: column; justify-content: center; gap: 6px; }
.menu span { display: block; height: 2px; background: var(--bone); border-radius: 2px; }

/* hero */
.hero { position: relative; max-width: var(--wrap); margin: 0 auto; padding: clamp(48px, 8vw, 104px) var(--gutter) 40px; display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; }
.hero::before { content: ""; position: absolute; inset: -120px 0 auto; height: 620px; background: radial-gradient(closest-side, rgba(255, 107, 44, .16), transparent 70%); pointer-events: none; z-index: -1; }
.hero h1 em { font-style: normal; color: var(--signal); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.platforms { margin-top: 28px; font: 13px/1.6 var(--mono); color: var(--ash); letter-spacing: .04em; }
.hero-shot img { width: 100%; max-width: 440px; margin-left: auto; border-radius: 28px; border: 1px solid var(--line-plus); box-shadow: 0 40px 80px rgba(0, 0, 0, .55), 0 0 0 10px #15161b; }

.strip { max-width: var(--wrap); margin: 24px auto 0; padding: 0 var(--gutter); display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; }
.strip > div { background: var(--ink); border: 1px solid var(--line); padding: 20px 22px; display: grid; gap: 4px; }
.strip > div:first-child { border-radius: var(--r-card) 0 0 var(--r-card); }
.strip > div:last-child { border-radius: 0 var(--r-card) var(--r-card) 0; }
.strip b { font: 800 22px/1.1 var(--mono); color: var(--bone); }
.strip span { color: var(--ash); font-size: 14px; line-height: 1.4; }

/* sections */
.section { max-width: var(--wrap); margin: 0 auto; padding: clamp(64px, 9vw, 112px) var(--gutter) 0; }
.section-lead { color: #c9c6bf; max-width: 720px; font-size: 18px; margin-bottom: 40px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--graphite); border: 1px solid var(--line); border-radius: var(--r-card); padding: 26px; display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.card:hover { border-color: var(--line-plus); }
.card p { color: #c2bfb8; font-size: 16px; }
.card-ico { width: 42px; height: 42px; border-radius: 11px; background: rgba(255, 107, 44, .12); color: var(--signal); display: grid; place-items: center; font: 800 17px/1 var(--mono); margin-bottom: 18px; }
.more { margin-top: auto; font-weight: 600; font-size: 15px; }
.more::after { content: " →"; }
.card-flat { background: transparent; }
.note { margin-top: 24px; color: var(--ash); }

.split { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: center; }
.split-text p { color: #c9c6bf; }
.split-shot img { max-width: 300px; margin: 0 auto; border-radius: 40px; border: 1px solid var(--line-plus); box-shadow: 0 30px 70px rgba(0, 0, 0, .55), 0 0 0 9px #15161b; }
.ticks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 10px; }
.ticks li { padding-left: 30px; position: relative; }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 800; }

.steps { list-style: none; counter-reset: s; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.steps li { counter-increment: s; border-top: 2px solid var(--line-plus); padding-top: 18px; display: grid; gap: 8px; }
.steps li::before { content: "0" counter(s); font: 800 14px/1 var(--mono); color: var(--signal); }
.steps b { font-size: 18px; }
.steps span { color: var(--ash); font-size: 15px; }

.cta-band { margin-top: clamp(64px, 9vw, 112px); padding: clamp(32px, 5vw, 56px); max-width: calc(var(--wrap) - 2 * var(--gutter)); border-radius: 24px; border: 1px solid var(--line-plus); background: linear-gradient(135deg, rgba(255, 107, 44, .14), rgba(255, 107, 44, .02) 60%), var(--ink); display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: center; }
.cta-band p { color: #c9c6bf; }
.cta-band .cta { justify-content: flex-end; margin: 0; }

/* docs */
.docs { max-width: var(--wrap); margin: 0 auto; padding: clamp(40px, 6vw, 72px) var(--gutter) 0; display: grid; grid-template-columns: 220px 1fr; gap: 56px; align-items: start; }
.docs-single { grid-template-columns: 1fr; max-width: 860px; }
.toc { position: sticky; top: 92px; display: grid; gap: 2px; max-height: calc(100vh - 110px); overflow: auto; }
.toc-title { font: 600 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ash); margin: 0 0 12px; }
.toc a { color: var(--ash); font-size: 15px; padding: 6px 10px; border-radius: 8px; border-left: 2px solid transparent; }
.toc a:hover, .toc a.on { color: var(--bone); background: var(--ink); text-decoration: none; }
.toc a.on { border-left-color: var(--signal); }
.doc { max-width: 760px; min-width: 0; }
.doc section { padding: 36px 0 8px; border-top: 1px solid var(--line); margin-top: 28px; }
.doc h2 { font-size: clamp(24px, 2.6vw, 30px); }
.doc p, .doc li { color: #d3d0c9; }
.doc ul, .doc ol { padding-left: 22px; margin: 0 0 16px; display: grid; gap: 8px; }
.doc li::marker { color: var(--signal); }

/* contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; padding-bottom: 0; }
.contact h1 { font-size: clamp(32px, 4.4vw, 52px); }
.plans { display: grid; gap: 12px; margin: 32px 0; }
.plan { border: 1px solid var(--line); border-radius: var(--r-card); padding: 18px 20px; background: var(--graphite); }
.plan h2 { font-size: 17px; margin-bottom: 6px; }
.plan p { margin: 0; color: #c2bfb8; font-size: 15px; }
.mails { display: grid; gap: 12px; }
.mails p { margin: 0; display: grid; }
.mails span { color: var(--ash); font-size: 14px; }
.mails a { font: 700 18px/1.4 var(--mono); }
.form { background: var(--ink); border: 1px solid var(--line-plus); border-radius: 22px; padding: clamp(22px, 3.5vw, 36px); display: grid; gap: 16px; position: sticky; top: 92px; }
.form h2 { font-size: 24px; margin-bottom: 4px; }
.form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: #d3d0c9; min-width: 0; }
.form input, .form select, .form textarea { width: 100%; font: 16px/1.4 var(--sans); color: var(--bone); background: var(--raised); border: 1px solid var(--line-plus); border-radius: var(--r-control); padding: 12px 14px; min-height: 48px; }
.form textarea { resize: vertical; min-height: 120px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px rgba(255, 107, 44, .2); }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.fine { font-size: 13px; color: var(--ash); margin: 0; }
.form-msg { margin: 0; min-height: 1.6em; font-weight: 600; }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: var(--fail); }
.form.done label, .form.done .row, .form.done .fine, .form.done button { display: none; }

/* footer */
.foot { margin-top: clamp(72px, 10vw, 128px); border-top: 1px solid var(--line); background: var(--ink); }
.foot-in { max-width: var(--wrap); margin: 0 auto; padding: 48px var(--gutter) 24px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.foot-brand p { color: var(--ash); margin-top: 14px; font-size: 15px; }
.foot-col { display: grid; gap: 6px; align-content: start; font-size: 15px; }
.foot-col h2 { font: 600 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--ash); margin: 0 0 8px; }
.foot-col span { color: var(--ash); }
.foot-col a { color: var(--bone); }
.foot-legal { max-width: var(--wrap); margin: 0 auto; padding: 16px var(--gutter) 32px; color: #5d6069; font-size: 13px; }

/* tablet */
@media (max-width: 980px) {
  .hero, .split, .contact, .cta-band { grid-template-columns: 1fr; }
  .hero-shot img { margin: 0 auto; max-width: 380px; }
  .grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .strip { grid-template-columns: 1fr 1fr; }
  .strip > div:first-child, .strip > div:last-child { border-radius: 0; }
  .cta-band .cta { justify-content: flex-start; }
  .docs { grid-template-columns: 1fr; gap: 0; }
  .toc { position: static; max-height: none; display: flex; flex-wrap: wrap; gap: 6px; }
  .toc-title { width: 100%; }
  .toc a { border: 1px solid var(--line); border-radius: 999px; font-size: 14px; padding: 6px 12px; }
  .form { position: static; }
  .foot-in { grid-template-columns: 1fr 1fr; }
}

/* phone */
@media (max-width: 720px) {
  body { font-size: 16px; }
  .menu { display: inline-flex; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 68px; background: var(--ink); border-bottom: 1px solid var(--line); flex-direction: column; gap: 0; padding: 8px var(--gutter) 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 14px 0; font-size: 17px; border-bottom: 1px solid var(--line); }
  .top-end .btn-sm { display: none; }
  .grid, .steps, .form .row { grid-template-columns: 1fr; }
  .strip { grid-template-columns: 1fr; }
  .cta .btn { width: 100%; }
  .foot-in { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}