:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --ink: #111110;
  --ink-2: #4a4945;
  --ink-3: #8a8882;
  --line: #e3e1da;
  --accent: #1f6feb;
  --live: #14b85a;
  --frame: #1b1b1a;
  --radius: 14px;
  --max: 1120px;
  --sans: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0e0d; --surface: #171716; --ink: #f2f1ed; --ink-2: #b9b7b0; --ink-3: #7d7b75;
    --line: #2a2a28; --accent: #5b9dff; --frame: #2a2a28; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e0e0d; --surface: #171716; --ink: #f2f1ed; --ink-2: #b9b7b0; --ink-3: #7d7b75;
  --line: #2a2a28; --accent: #5b9dff; --frame: #2a2a28; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 var(--sans); }
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

/* nav */
.nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.02em; text-decoration: none; font-size: 18px; }
.logo-mark { width: 22px; height: 22px; border: 2.5px solid var(--ink); border-radius: 5px; position: relative; }
.logo-mark::after { content: ""; position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--live); right: -5px; top: -5px; box-shadow: 0 0 0 2.5px var(--bg); }
.nav-links { display: flex; gap: 22px; align-items: center; font-size: 15px; }
.nav-links a { text-decoration: none; color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }
@media (max-width: 640px) { .nav-links .hide-sm { display: none; } }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px; font-weight: 600; text-decoration: none; font-size: 16px; border: 1.5px solid var(--ink); transition: transform .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-sm { padding: 8px 14px; font-size: 14px; }
.nav-links .btn-primary { color: var(--bg); }

/* hero */
.hero { padding: 72px 0 56px; }
@media (min-width: 900px) { .hero { padding: 112px 0 80px; } }
.eyebrow { font: 500 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); display: inline-flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--live); box-shadow: 0 0 0 0 color-mix(in srgb, var(--live) 60%, transparent); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--live) 55%, transparent); } 70% { box-shadow: 0 0 0 9px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }
h1 { font-size: clamp(42px, 8vw, 88px); line-height: .98; letter-spacing: -0.045em; margin: 20px 0 24px; font-weight: 700; max-width: 14ch; }
h1 em { font-style: normal; color: var(--ink-3); }
.lead { font-size: clamp(18px, 2.2vw, 22px); color: var(--ink-2); max-width: 40ch; margin: 0 0 32px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 56px; }
@media (min-width: 720px) { .facts { grid-template-columns: repeat(4, 1fr); } }
.fact { background: var(--surface); padding: 20px; }
.fact b { display: block; font-size: 28px; letter-spacing: -0.03em; }
.fact span { color: var(--ink-3); font-size: 14px; }

/* sections */
section { padding: 64px 0; }
@media (min-width: 900px) { section { padding: 96px 0; } }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; flex-wrap: wrap; margin-bottom: 36px; }
h2 { font-size: clamp(30px, 4.6vw, 52px); letter-spacing: -0.035em; line-height: 1.02; margin: 12px 0 0; font-weight: 700; max-width: 18ch; }
.section-head p { color: var(--ink-2); max-width: 42ch; margin: 0; }

/* browser frame */
.frame { border-radius: 12px; background: var(--frame); padding: 0 0 0; overflow: hidden; border: 1px solid var(--line); }
.frame-bar { display: flex; align-items: center; gap: 6px; height: 30px; padding: 0 12px; background: var(--frame); }
.frame-bar i { width: 9px; height: 9px; border-radius: 50%; background: #4a4a47; display: block; }
.frame-url { margin-left: 10px; font: 12px/1 var(--mono); color: #a9a7a0; display: flex; align-items: center; gap: 6px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.frame-url .dot { width: 6px; height: 6px; animation: none; }
.frame img { aspect-ratio: 16/10; height: auto; object-fit: cover; object-position: top; width: 100%; background: #222; }

/* work grid */
.grid { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
.card { display: block; text-decoration: none; background: var(--surface); border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px); padding: 12px; transition: transform .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-3px); border-color: var(--ink-3); }
.card-body { padding: 18px 8px 8px; }
.card-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.tag { font: 500 12px/1 var(--mono); padding: 6px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-2); }
.tag-live { color: var(--live); border-color: color-mix(in srgb, var(--live) 40%, var(--line)); }
.card h3 { margin: 0 0 6px; font-size: 24px; letter-spacing: -0.025em; }
.card p { margin: 0; color: var(--ink-2); }
.card .more { display: inline-block; margin-top: 14px; font-weight: 600; font-size: 15px; }

/* steps */
.steps { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { background: var(--surface); padding: 28px; }
.step-n { font: 500 13px/1 var(--mono); color: var(--ink-3); }
.step h3 { margin: 14px 0 8px; font-size: 22px; letter-spacing: -0.02em; }
.step p { margin: 0; color: var(--ink-2); }

/* offer */
.offer { display: grid; gap: 28px; background: var(--ink); color: var(--bg); border-radius: 24px; padding: 32px 22px; }
@media (min-width: 900px) { .offer { grid-template-columns: 1.1fr 1fr; padding: 56px; gap: 56px; } }
.offer h2 { color: var(--bg); }
.price { font-size: clamp(44px, 7vw, 72px); font-weight: 700; letter-spacing: -0.04em; margin: 18px 0 4px; }
.price small { font-size: 18px; font-weight: 500; opacity: .6; letter-spacing: 0; }
.offer .muted { opacity: .65; }
.offer ul { list-style: none; padding: 0; margin: 0 0 22px; }
.offer li { padding: 10px 0; border-bottom: 1px solid color-mix(in srgb, var(--bg) 16%, transparent); display: flex; gap: 10px; }
.offer li::before { content: "+"; font-family: var(--mono); opacity: .6; }
.offer ul.no li::before { content: "–"; }
.offer h4 { margin: 0 0 6px; font: 500 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; opacity: .6; }
.offer .btn-primary { background: var(--bg); color: var(--ink); border-color: var(--bg); }

/* faq */
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; font-weight: 600; font-size: 19px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--mono); color: var(--ink-3); }
details[open] summary::after { content: "–"; }
details p { color: var(--ink-2); margin: 10px 0 0; max-width: 62ch; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 40px 0 56px; color: var(--ink-3); font-size: 15px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* case page */
.case-hero { padding: 56px 0 32px; }
.back { font-size: 15px; color: var(--ink-3); text-decoration: none; }
.case-hero h1 { font-size: clamp(40px, 7vw, 76px); max-width: none; }
.case-hero .lead { max-width: 52ch; }
.case-shot { margin: 8px 0 48px; }
.case-grid { display: grid; gap: 40px; }
@media (min-width: 900px) { .case-grid { grid-template-columns: 1fr 300px; gap: 64px; } }
.case-body h2 { font-size: 26px; margin: 40px 0 12px; max-width: none; letter-spacing: -0.02em; }
.case-body h2:first-child { margin-top: 0; }
.case-body p, .case-body li { color: var(--ink-2); }
.case-body ul { padding-left: 20px; }
.case-body li { margin: 6px 0; }
.aside { position: sticky; top: 84px; align-self: start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.aside dl { margin: 0; }
.aside dt { font: 500 12px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-top: 16px; }
.aside dt:first-child { margin-top: 0; }
.aside dd { margin: 6px 0 0; }
.aside .btn { margin-top: 20px; width: 100%; justify-content: center; }
.next-case { margin-top: 64px; border-top: 1px solid var(--line); padding-top: 28px; }

/* overflow guards */
.grid > *, .facts > *, .case-grid > * { min-width: 0; }
.frame-url { min-width: 0; }
.case-hero .eyebrow { display: flex; }
h1, h2 { overflow-wrap: break-word; }