:root {
  --bg: #0e1014;
  --bg-2: #14171d;
  --panel: #181c23;
  --line: #2a303a;
  --text: #e6e9ee;
  --muted: #a9b1bd;
  --accent: #f5a524;
  --accent-ink: #1a1203;
  --ok: #4fd18b;
  --warn: #f5c451;
  --bad: #ff7a7a;
  --radius: 14px;
  --wrap: 1120px;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 1.0625rem/1.65 var(--sans); }
img, video, svg { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 0.5em; font-weight: 700; text-wrap: balance; }
h1 { font-size: clamp(2.3rem, 6.4vw, 4.4rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.skip { position: absolute; left: 16px; top: -60px; background: var(--accent); color: var(--accent-ink); padding: 10px 14px; border-radius: 8px; font-weight: 700; z-index: 50; }
.skip:focus { top: 12px; }
.eyebrow { font: 600 0.78rem/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin: 0 0 1.1rem; }
.lede { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--muted); max-width: 58ch; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }

/* Header */
.top { position: sticky; top: 0; z-index: 20; background: rgba(14, 16, 20, 0.88); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 700 1.05rem/1 var(--mono); letter-spacing: -0.01em; }
.brand b { color: var(--accent); font-weight: 700; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.nav a:hover { color: var(--text); }
.nav .hide-s { display: none; }
@media (min-width: 760px) { .nav .hide-s { display: inline; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 20px; border-radius: 10px; border: 1px solid transparent; background: var(--accent); color: var(--accent-ink); font: 700 1rem/1 var(--sans); text-decoration: none; cursor: pointer; }
.btn:hover { background: #ffb840; }
.btn.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--muted); background: var(--panel); }
.btn.sm { min-height: 40px; padding: 0 14px; font-size: 0.92rem; }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.6rem; }

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img, .hero-media video { width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }
.hero-media video { position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease; }
.hero-media video.on { opacity: 1; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(14, 16, 20, 0.96) 0%, rgba(14, 16, 20, 0.82) 45%, rgba(14, 16, 20, 0.35) 100%), linear-gradient(0deg, var(--bg) 0%, rgba(14, 16, 20, 0) 30%); }
.hero .wrap { position: relative; z-index: 1; padding: clamp(64px, 12vw, 132px) 0 clamp(56px, 9vw, 104px); }
.hero h1 { max-width: 15ch; }
.proof { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 2.2rem 0 0; padding: 0; list-style: none; font: 500 0.82rem/1.4 var(--mono); color: var(--muted); }
.proof li::before { content: "/ "; color: var(--accent); }

/* Sections */
section { padding: clamp(56px, 9vw, 104px) 0; }
section.alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.head { max-width: 64ch; margin-bottom: 2.4rem; }
.grid { display: grid; gap: 16px; }
@media (min-width: 760px) { .grid.c3 { grid-template-columns: repeat(3, 1fr); } .grid.c2 { grid-template-columns: repeat(2, 1fr); } }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card .n { font: 600 0.78rem/1 var(--mono); color: var(--accent); letter-spacing: 0.12em; display: block; margin-bottom: 14px; }
.card ul { margin: 0.8em 0 0; padding-left: 1.1em; color: var(--muted); }
.card li { margin-bottom: 0.35em; }
.tag { display: inline-block; font: 600 0.72rem/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; padding: 6px 8px; border-radius: 6px; border: 1px solid var(--line); color: var(--muted); margin-top: 14px; }

/* Journey stepper */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.steps li { counter-increment: s; padding: 22px 24px 22px 76px; position: relative; background: var(--panel); border-bottom: 1px solid var(--line); }
.steps li:last-child { border-bottom: 0; }
.steps li::before { content: counter(s, decimal-leading-zero); position: absolute; left: 24px; top: 24px; font: 700 1rem/1 var(--mono); color: var(--accent); }
.steps h3 { margin-bottom: 0.3em; }
.steps p { margin: 0; color: var(--muted); }

/* Honest box */
.plain { border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: var(--radius); padding: 24px; background: var(--panel); }
.plain ul { margin: 0; padding-left: 1.1em; }
.plain li { margin-bottom: 0.5em; }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: 4px 0; }
details:first-of-type { border-top: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; padding: 16px 36px 16px 0; font-weight: 600; position: relative; min-height: 48px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 6px; top: 12px; font: 400 1.5rem/1 var(--mono); color: var(--accent); }
details[open] summary::after { content: "\2212"; }
details p { color: var(--muted); max-width: 70ch; }

/* Forms */
form.lead { display: grid; gap: 14px; }
@media (min-width: 640px) { form.lead .two { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; } }
form.lead .two > div + div { margin-top: 14px; }
@media (min-width: 640px) { form.lead .two > div + div { margin-top: 0; } }
label { display: block; font-weight: 600; font-size: 0.92rem; margin-bottom: 6px; }
label .opt { font-weight: 400; color: var(--muted); }
input, textarea { width: 100%; min-height: 48px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text); font: inherit; }
textarea { min-height: 120px; resize: vertical; }
input:focus, textarea:focus { outline: 3px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
input[aria-invalid="true"] { border-color: var(--bad); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.status { min-height: 1.5em; margin: 0; font-weight: 600; }
.status.ok { color: var(--ok); }
.status.err { color: var(--bad); }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 40px 0 96px; color: var(--muted); font-size: 0.92rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* Prose pages */
.prose { max-width: 72ch; padding: 64px 0; }
.prose h1 { font-size: clamp(2rem, 5vw, 3rem); }
.prose h2 { font-size: 1.35rem; margin-top: 2em; }
.prose p, .prose li { color: var(--muted); }

/* Grader */
.grader { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 1.8rem; max-width: 640px; }
.grader .field { flex: 1 1 260px; }
.grader input { min-height: 54px; font-size: 1.05rem; background: rgba(14, 16, 20, 0.85); }
.grader .btn { min-height: 54px; }
.result { display: none; }
.result.on { display: block; }
.scorebox { display: grid; gap: 28px; align-items: center; }
@media (min-width: 760px) { .scorebox { grid-template-columns: 240px 1fr; } }
.dial { width: 220px; height: 220px; position: relative; margin-inline: auto; }
.dial svg { transform: rotate(-90deg); }
.dial .track { stroke: var(--line); }
.dial .arc { stroke: var(--accent); transition: stroke-dashoffset 1s ease; }
.dial .num { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; font: 700 3.6rem/1 var(--mono); }
.dial .num small { display: block; font: 500 0.8rem/1.4 var(--mono); color: var(--muted); letter-spacing: 0.1em; margin-top: 6px; }
.split { display: flex; flex-wrap: wrap; gap: 10px; margin: 0.6rem 0 0; }
.split span { font: 600 0.82rem/1 var(--mono); padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted); }
.split b { color: var(--text); }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.checks li { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; display: grid; grid-template-columns: auto 1fr auto; gap: 4px 14px; align-items: start; }
.checks .dot { width: 12px; height: 12px; border-radius: 50%; margin-top: 7px; background: var(--bad); }
.checks .pass .dot { background: var(--ok); }
.checks .partial .dot { background: var(--warn); }
.checks .lab { font-weight: 600; }
.checks .pts { font: 600 0.85rem/1.9 var(--mono); color: var(--muted); white-space: nowrap; }
.checks .det { grid-column: 2 / -1; color: var(--muted); font-size: 0.95rem; margin: 0; }
.checks .fix { grid-column: 2 / -1; font-size: 0.95rem; margin: 4px 0 0; }
.checks .fix b { color: var(--accent); font-weight: 600; }
.group-title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 12px; margin: 2.4rem 0 1rem; }
.group-title h3 { margin: 0; font-size: 1.3rem; }
.group-title span { color: var(--muted); font-size: 0.92rem; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* Chat */
.chat-toggle { position: fixed; right: 16px; bottom: 16px; z-index: 40; min-height: 52px; border-radius: 999px; box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5); }
.chat { position: fixed; right: 16px; bottom: 80px; z-index: 41; width: min(380px, calc(100vw - 32px)); height: min(540px, calc(100dvh - 110px)); background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); display: none; flex-direction: column; box-shadow: 0 18px 60px rgba(0, 0, 0, 0.6); }
.chat.on { display: flex; }
.chat header { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.chat header h2 { font-size: 1rem; margin: 0; letter-spacing: 0; }
.chat header p { margin: 2px 0 0; font-size: 0.78rem; color: var(--muted); }
.chat .x { background: transparent; border: 1px solid var(--line); color: var(--text); min-width: 40px; min-height: 40px; border-radius: 8px; cursor: pointer; font-size: 1.1rem; }
.chat .log { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.chat .m { max-width: 88%; padding: 10px 12px; border-radius: 12px; font-size: 0.95rem; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; }
.chat .m.a { background: var(--bg); border: 1px solid var(--line); align-self: flex-start; }
.chat .m.u { background: var(--accent); color: var(--accent-ink); align-self: flex-end; }
.chat form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--line); }
.chat form input { min-height: 44px; }
.chat form .btn { min-height: 44px; padding: 0 14px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-media video { display: none; }
  .dial .arc { transition: none; }
}

.mt-s { margin-top: 1.2rem; }
.mt-l { margin-top: 2.4rem; }

.nav a.btn { color: var(--accent-ink); }
.nav a.btn.ghost { color: var(--text); }

[id] { scroll-margin-top: 84px; }