/* ── Header ─────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -0.03em; font-size: 17px; }
.logo img { width: 26px; height: 26px; }
.site-nav { display: flex; gap: 4px; margin-left: 8px; }
.site-nav a { text-decoration: none; color: var(--muted); font-size: 14px; padding: 6px 10px; border-radius: 8px; transition: color .15s, background .15s; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--fg); background: var(--line); }
.site-header__end { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.pill { display: inline-flex; align-items: center; gap: 8px; height: 30px; padding: 0 12px; border-radius: 999px; font-size: 13px; white-space: nowrap; }
.pill--outline { border: 1px solid var(--line-strong); color: var(--fg); }
.pill__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.icon-btn { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--line-strong); background: transparent; color: var(--fg); cursor: pointer; }
.icon-btn:hover { background: var(--line); }
.icon-btn svg { width: 16px; height: 16px; }
.nav-toggle { display: none; }

@media (max-width: 899px) {
  .pill--outline { display: none; }
}
@media (max-width: 759px) {
  .nav-toggle { display: inline-grid; }
  .site-nav {
    position: fixed; inset: var(--header-h) 0 auto 0; margin: 0;
    flex-direction: column; gap: 0; padding: 8px 16px 20px;
    background: var(--bg); border-bottom: 1px solid var(--line);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { font-size: 18px; padding: 14px 4px; border-radius: 0; border-bottom: 1px solid var(--line); }
}

/* ── Buttons ────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 20px; border-radius: 999px;
  font: 500 15px/1 var(--font-sans); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background .15s, border-color .15s, color .15s;
}
.btn--primary { background: var(--fg); color: var(--on-fg); }
.btn--primary:hover { background: color-mix(in srgb, var(--fg) 85%, var(--bg)); }
.btn--ghost { background: transparent; color: var(--fg); border-color: var(--line-strong); }
.btn--ghost:hover { background: var(--line); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ── Cards ──────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); border-radius: var(--radius) 0 0 0; }
/* each card draws its own right + bottom hairline, so empty trailing cells stay blank */
.cards > * { box-shadow: inset -1px 0 0 var(--line), inset 0 -1px 0 var(--line); }
.card {
  position: relative; display: flex; flex-direction: column; gap: 12px;
  padding: 28px; background: var(--bg); text-decoration: none; color: inherit;
  transition: background .2s;
}
.card::before {
  content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .2s;
  background: radial-gradient(420px circle at var(--x, 50%) var(--y, 50%), color-mix(in srgb, var(--fg) 7%, transparent), transparent 60%);
}
.card:hover::before { opacity: 1; }
a.card:hover { background: var(--card); }
.card p { color: var(--muted); font-size: 15px; }
.card__icon { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 9px; }
.card__icon svg { width: 18px; height: 18px; }
.card__arrow { margin-top: auto; font-size: 14px; color: var(--fg); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font: 12px/1 var(--font-mono); color: var(--muted); border: 1px solid var(--line); border-radius: 6px; padding: 5px 7px; }

.work-card { padding: 0; }
.work-card__img { aspect-ratio: 16/9; width: 100%; object-fit: cover; border-bottom: 1px solid var(--line); filter: grayscale(.35); transition: filter .2s; }
.work-card:hover .work-card__img { filter: none; }
.work-card__body { display: flex; flex-direction: column; gap: 10px; padding: 24px; flex: 1; }
.work-card__ph { --tint: 96, 140, 255; aspect-ratio: 16/9; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; justify-content: flex-end; gap: 6px; padding: 22px 24px;
  font: 13px/1.4 var(--font-mono); color: var(--muted); overflow: hidden;
  background: radial-gradient(120% 90% at 85% 0%, rgba(var(--tint), .28), transparent 60%), linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 22px, var(--card); }
.work-card__ph--ai { --tint: 217, 119, 87; }
.work-card__ph--web { --tint: 60, 200, 180; }
.work-card__ph--it { --tint: 170, 120, 255; }
.work-card__cmd { color: var(--fg); }
.work-card__out { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.work-card__ok { color: rgb(var(--tint)); }

/* ── Section head ───────────────────────────────────── */
.section-head { display: grid; gap: 14px; margin-bottom: 48px; max-width: 760px; }

/* ── Steps ──────────────────────────────────────────── */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; counter-reset: step; }
.steps li { background: var(--bg); padding: 28px; counter-increment: step; display: grid; gap: 8px; }
.steps li::before { content: '0' counter(step); font: 500 12px var(--font-mono); color: var(--accent); }
.steps h3 { font-size: 18px; }
.steps p { color: var(--muted); font-size: 15px; }

/* ── Page hero (inner pages) ────────────────────────── */
.page-hero { padding-top: 96px; padding-bottom: 80px; display: grid; gap: 22px; }
.page-hero .h1 { max-width: 14ch; }
.page-hero--grid { background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 64px 64px; background-position: -1px -1px;
  -webkit-mask-image: linear-gradient(180deg, #000 30%, transparent); mask-image: linear-gradient(180deg, #000 30%, transparent); }
.page-hero__wrap { position: relative; }
.page-hero__wrap > .page-hero--grid { position: absolute; inset: 0; pointer-events: none; padding: 0; }

/* ── CTA band ───────────────────────────────────────── */
.cta-band { display: grid; gap: 24px; justify-items: start; }
@media (min-width: 900px) { .cta-band { grid-template-columns: 1fr auto; align-items: end; } }

/* ── Stack strip ────────────────────────────────────── */
.strip { display: flex; flex-wrap: wrap; gap: 8px; }
.strip .tag { font-size: 13px; padding: 8px 10px; }

/* ── Forms ──────────────────────────────────────────── */
.form { display: grid; gap: 18px; max-width: 640px; }
.form label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
.form input:not([type="checkbox"]), .form select, .form textarea {
  font: 15px/1.4 var(--font-sans); color: var(--fg); background: var(--card);
  border: 1px solid var(--line-strong); border-radius: 8px; padding: 11px 12px; width: 100%;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--fg); box-shadow: 0 0 0 3px color-mix(in srgb, var(--fg) 15%, transparent); }
.form fieldset { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px 16px; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.form legend { font-size: 14px; color: var(--muted); padding: 0 6px; }
.form fieldset label { display: flex; align-items: center; gap: 8px; color: var(--fg); font-size: 15px; }
.form input[type="checkbox"] { accent-color: var(--fg); width: 16px; height: 16px; }
.form .btn { justify-self: start; }

/* ── Footer ─────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; font-size: 14px; }
.site-footer__cols { display: grid; gap: 32px; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.site-footer h2 { font-size: 13px; font-weight: 500; letter-spacing: 0; margin-bottom: 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--fg); }
.site-footer__base { margin-top: 48px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; color: var(--faint); font-size: 13px; }

/* ── Prose (case studies) ───────────────────────────── */
.prose { display: grid; gap: 18px; max-width: 68ch; color: var(--muted); font-size: 17px; }
.meta { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.meta > div { background: var(--bg); padding: 18px 20px; display: grid; gap: 6px; }
.case-img { width: 100%; max-width: 760px; border: 1px solid var(--line); border-radius: var(--radius); }
.site-footer a.logo { color: var(--fg); }

/* ── AI flow diagram ────────────────────────────────── */
.flow { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; background: var(--bg); overflow-x: auto; }
.flow svg { min-width: 640px; width: 100%; height: auto; color: var(--fg); }
.flow__pulse { stroke-dasharray: 18 200; animation: flow-pulse 2.4s linear infinite; }
@keyframes flow-pulse { from { stroke-dashoffset: 218; } to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) { .flow__pulse { animation: none; stroke-dasharray: none; } }

/* ── Contact layout ─────────────────────────────────── */
.contact-grid { display: grid; gap: 48px; }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 1fr 320px; } }
.contact-aside { display: grid; gap: 24px; align-content: start; }
.contact-aside .card { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); }
.cards-2 .cards { grid-template-columns: repeat(auto-fill, minmax(min(100%, 440px), 1fr)); }