/* ===================================================================
   DLG Labs - site.css
   Home layout + shared components (nav, footer, buttons, contact form,
   differentiator band, team band, CTA band). Built on tokens.css.
   Ported from the design prototype MINUS the old green system: every
   surface derives from the teal --accent token. No neon green.
   =================================================================== */

:root {
  --panel:      #0f151f;
  --panel-2:    #131b27;
  --bg-2:       #0b0f17;
  --line-soft:  rgba(255, 255, 255, .05);
  --accent-2:   #86bccd;              /* cool steel-blue, replaces old cyan */
  --crit:       #e0776a;              /* muted red for invalid state */
  --warn:       #e0a24c;
  --radius:     14px;
  --radius-sm:  10px;
  --maxw:       1200px;
  --nav-h:      76px;                 /* sticky nav height; brief-tabs sticks below this */
  --shadow:     0 24px 60px -20px rgba(0, 0, 0, .7);
  --mono:       var(--font-mono);
  --sans:       var(--font-body);
  --disp:       var(--font-heading);
}

/* accent-derived helpers (flat, no glow) */
:root {
  --accent-soft: color-mix(in oklab, var(--accent) 12%, transparent);
  --accent-line: color-mix(in oklab, var(--accent) 30%, transparent);
}

.skip-link {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--accent); color: var(--on-accent);
  padding: 10px 16px; border-radius: var(--radius-btn); font-weight: 700;
}
.skip-link:focus { left: 12px; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 6vw; }

.eyebrow, .kicker {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--accent);
}

/* ===================== Nav ===================== */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: var(--nav-h); padding: 16px 6vw;
  background: rgba(10, 13, 17, .82);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav .brand { font-family: var(--mono); font-weight: 800; letter-spacing: .03em; color: var(--text); }
.nav .brand span { font-weight: 400; color: var(--muted); }
.nav .links { display: flex; gap: 30px; }
.nav .links a { font-size: .86rem; color: var(--muted); transition: color .2s ease; }
.nav .links a:hover { color: var(--text); }
.nav .right { display: flex; align-items: center; gap: 20px; }
.nav .back { font-family: var(--mono); font-size: .82rem; color: var(--muted); }
.nav .back:hover { color: var(--accent); }

.lng { display: flex; align-items: center; gap: 7px; font-family: var(--mono); font-size: .78rem; }
.lng a { color: var(--dim); transition: color .2s ease; }
.lng a.on { color: var(--accent); font-weight: 700; }
.lng a:hover { color: var(--text); }
.lng i { color: var(--line); font-style: normal; }

.nav .cta {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--on-accent); background: var(--accent); border: 1px solid var(--accent);
  border-radius: var(--radius-btn); padding: 11px 20px; cursor: pointer; white-space: nowrap;
}
.nav .cta:hover { filter: brightness(1.08); }

/* ===================== Hero ===================== */
.hero { position: relative; min-height: calc(100svh - var(--nav-h, 76px)); display: flex; align-items: center; overflow: hidden; }
.hero .bg { position: absolute; inset: 0; opacity: .66; z-index: 1; }
.hero .bg canvas { width: 100%; height: 100%; display: block; }
.hero .scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(90deg, var(--bg) 26%, color-mix(in oklab, var(--bg) 38%, transparent) 56%, transparent 90%),
    linear-gradient(0deg, var(--bg), transparent 46%);
}
.hero-in { position: relative; z-index: 2; padding: 0 6vw; max-width: 660px; pointer-events: none; }
.hero-in a, .hero-in button { pointer-events: auto; }
.hero .kicker { margin-bottom: 22px; display: flex; align-items: center; gap: 12px; }
.hero .kicker::before { content: ""; width: 34px; height: 1px; background: var(--accent); }
.hero h1 {
  font-family: var(--disp); font-size: clamp(2.2rem, 5vw, 4.1rem); font-weight: 400;
  line-height: 1.02; letter-spacing: -.03em; margin: 0 0 20px;
}
.hero h1 b { font-weight: 700; }
.hero p { color: var(--muted); font-size: 1.06rem; line-height: 1.6; max-width: 44ch; margin: 0 0 28px; }
.cta-row { display: flex; gap: 13px; flex-wrap: wrap; }
.primary {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--on-accent); background: var(--accent); border: 1px solid var(--accent);
  border-radius: var(--radius-btn); padding: 15px 28px; cursor: pointer; transition: filter .2s ease;
}
.primary:hover { filter: brightness(1.1); }
.hint { margin-top: 20px; font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; color: var(--dim); display: flex; align-items: center; gap: 8px; }
.hint::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.trust { margin-top: 26px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }
.trust b { color: var(--muted); font-weight: 500; margin-right: 4px; }
.trust span { border: 1px solid var(--line); padding: 5px 10px; border-radius: var(--radius-chip); color: var(--muted); }

/* ===================== Services ===================== */
.services {
  position: relative; overflow: hidden; background: var(--bg2);
  border-top: 1px solid var(--line); min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center; padding: 9vh 6vw;
}
.sbg { position: absolute; inset: 0; opacity: .26; z-index: 0; transition: opacity .45s ease; }
.sbg canvas { width: 100%; height: 100%; display: block; }
.services.hot .sbg { opacity: .55; }
.sveil { position: absolute; inset: 0; z-index: 1; pointer-events: none; background: radial-gradient(120% 90% at 74% 50%, transparent 46%, rgba(12, 17, 25, .66)); }
.shead { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto 26px; width: 100%; }
.shead .kicker { margin-bottom: 14px; display: block; }
.shead h2 { font-family: var(--disp); font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 400; letter-spacing: -.025em; margin: 0; }
.shead h2 b { font-weight: 700; }
.shead p { color: var(--muted); font-size: .98rem; margin: 10px 0 0; max-width: 60ch; }
.slist { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; width: 100%; }
.srow {
  display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 18px;
  padding: 11px 14px; color: var(--muted); border-radius: var(--radius-row);
  transition: color .2s ease; text-decoration: none;
}
.srow .n { font-family: var(--mono); font-size: .78rem; color: var(--dim); }
.srow .tx h3 { font-family: var(--disp); font-size: clamp(1.05rem, 1.7vw, 1.42rem); font-weight: 500; letter-spacing: -.01em; line-height: 1.2; margin: 0; transition: font-weight .2s ease, color .2s ease; }
.srow .tx .d { font-family: var(--mono); font-size: .72rem; letter-spacing: .03em; color: var(--dim); margin-top: 3px; }
.srow:hover .tx h3, .srow:focus-visible .tx h3 { color: var(--text); }
.srow.on .tx h3 { font-weight: 700; }
.srow.on .n, .srow.on .tx h3 { color: var(--srow-accent, var(--accent)); }

/* ===================== Differentiator band ===================== */
.diff {
  position: relative; z-index: 2; text-align: center;
  padding: clamp(48px, 7vw, 84px) 6vw; border-top: 1px solid var(--line); background: var(--bg);
}
.diff .inner { max-width: var(--maxw); margin: 0 auto; }
.diff h2 { font-family: var(--disp); font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 400; letter-spacing: -.02em; margin: 12px auto 18px; max-width: 22ch; }
.diff h2 b { font-weight: 700; }
.diff__body { color: var(--muted); font-size: 1.08rem; max-width: 72ch; margin: 0 auto 20px; }
.vs { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: stretch; max-width: 760px; margin: 30px auto 40px; text-align: left; }
.vs__col { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 22px; background: var(--panel); }
.vs__col.bad { opacity: .8; }
.vs__col.good { border-color: var(--accent-line); }
.vs__col h4 { margin: 0 0 12px; font-size: .95rem; font-family: var(--mono); letter-spacing: .04em; }
.vs__col.bad h4 { color: var(--muted); }
.vs__col.good h4 { color: var(--accent); }
.vs__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.vs__col li { font-size: .9rem; color: var(--muted); padding-left: 20px; position: relative; }
.vs__col.bad li::before { content: "x"; position: absolute; left: 0; color: var(--dim); font-family: var(--mono); }
.vs__col.good li::before { content: "+"; position: absolute; left: 0; color: var(--accent); font-family: var(--mono); }
.vs__mid { display: grid; place-items: center; font-family: var(--mono); color: var(--dim); font-size: .8rem; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; text-align: left; max-width: 900px; margin: 0 auto; }
.pillar { background: var(--panel); border: 1px solid var(--line); border-top: 2px solid var(--accent); border-radius: var(--radius-sm); padding: 22px; }
.pillar h3 { margin: 0 0 8px; font-size: 1.06rem; }
.pillar p { margin: 0; color: var(--muted); font-size: .94rem; }

/* ===================== Team band ===================== */
.team { position: relative; z-index: 2; padding: clamp(48px, 6vw, 80px) 6vw; border-top: 1px solid var(--line); background: var(--bg2); }
.team .inner { max-width: var(--maxw); margin: 0 auto; }
.team__head { text-align: center; margin: 0 auto 26px; max-width: 70ch; }
.team__head h2 { font-family: var(--disp); font-weight: 400; font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 12px 0 0; }
.team__head p { color: var(--muted); margin: 10px auto 0; }
.team__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin: 30px 0; }
.stat { text-align: center; }
.stat b { display: block; font-family: var(--mono); font-size: clamp(1.6rem, 3.2vw, 2.2rem); font-weight: 700; color: var(--accent); }
.stat span { display: block; font-size: .88rem; color: var(--muted); margin-top: 6px; }
.markers { list-style: none; padding: 0; margin: 0 0 34px; display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; }
.markers li { font-size: .84rem; color: var(--text); background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: 999px; padding: 7px 14px; }
.certs__label { font-family: var(--mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); text-align: center; margin: 0 0 20px; }
.certs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.cbadge { font-family: var(--mono); font-size: .82rem; letter-spacing: .03em; color: var(--muted); border: 1px solid var(--line); border-radius: 8px; padding: 9px 15px; background: var(--panel-2); transition: color .2s ease, border-color .2s ease; }
.cbadge:hover { color: var(--accent); border-color: var(--accent-line); }

/* ===================== CTA band ===================== */
.band { position: relative; z-index: 2; padding: 92px 6vw; text-align: center; border-top: 1px solid var(--line); background: var(--bg); }
.band .inner { max-width: 60ch; margin: 0 auto; }
.band h2 { font-family: var(--disp); font-size: clamp(1.9rem, 3.6vw, 2.9rem); font-weight: 400; letter-spacing: -.03em; margin: 0 0 10px; }
.band h2 b { font-weight: 700; }
.band p { color: var(--muted); margin: 0 0 28px; }

/* ===================== Contact ===================== */
.contact { padding: clamp(56px, 8vw, 96px) 6vw; border-top: 1px solid var(--line); background: var(--bg2); }
.contact .inner { max-width: var(--maxw); margin: 0 auto; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 44px; align-items: start; }
.contact-intro h2 { font-family: var(--disp); font-weight: 400; font-size: clamp(1.5rem, 3vw, 2rem); margin: 10px 0 14px; }
.contact-intro .lead { color: var(--muted); margin: 0 0 24px; }
.contact-preset { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: .76rem; color: var(--accent); background: var(--accent-soft); border: 1px solid var(--accent-line); border-radius: 999px; padding: 6px 12px; margin: 0 0 16px; }
.contact-points { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 12px; }
.contact-points li { position: relative; padding-left: 26px; color: var(--muted); }
.contact-points li::before { content: ""; position: absolute; left: 2px; top: .45em; width: 9px; height: 9px; border: 2px solid var(--accent); border-radius: 2px; transform: rotate(45deg); }
.contact-direct { color: var(--muted); font-size: .95rem; margin: 0; }
.contact-direct a { color: var(--accent); font-family: var(--mono); }
.contact-direct a:hover { text-decoration: underline; }

.contact-form {
  display: grid; gap: 15px; padding: clamp(22px, 3vw, 30px);
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.field { display: grid; gap: 6px; }
.field .lbl { font-size: .84rem; color: var(--muted); font-weight: 500; }
.req { color: var(--accent); font-style: normal; }
.field input, .field textarea, .field select {
  width: 100%; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm);
  color: var(--text); font: inherit; padding: 12px 14px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.field select {
  appearance: none; -webkit-appearance: none; cursor: pointer; padding-right: 38px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238595a3' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; background-size: 12px;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 18%, transparent);
}
.field textarea { resize: vertical; min-height: 130px; }
.check { display: flex; align-items: flex-start; gap: 10px; font-size: .88rem; color: var(--muted); cursor: pointer; }
.check input { width: 18px; height: 18px; margin-top: 1px; accent-color: var(--accent); flex-shrink: 0; }
.contact-form .primary { justify-self: start; margin-top: 4px; }
.contact-form .primary:disabled { opacity: .6; cursor: not-allowed; filter: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { margin: 2px 0 0; font-size: .92rem; min-height: 1.2em; }
.form-status.is-ok { color: var(--accent); }
.form-status.is-error { color: var(--crit); }
.field.invalid input, .field.invalid textarea, .field.invalid select { border-color: var(--crit); box-shadow: 0 0 0 3px color-mix(in oklab, var(--crit) 14%, transparent); }
.field.invalid .lbl { color: var(--crit); }
.check.invalid { color: var(--crit); }
.check.invalid input { outline: 2px solid var(--crit); outline-offset: 2px; }

/* ===================== Footer ===================== */
footer.site {
  padding: 32px 6vw; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  color: var(--dim); font-family: var(--mono); font-size: .74rem; flex-wrap: wrap; gap: 12px; background: var(--bg);
}

/* ===================== Responsive ===================== */
@media (max-width: 900px) {
  .nav { padding: 14px 5vw; }
  .nav .links { display: none; }
  /* On phones/tablets the nexus is decorative only: the service list is the
     real nav, so the hero canvas must not capture taps or steal them from it. */
  .hero .bg { opacity: .34; pointer-events: none; }
  .hero-in { max-width: 100%; padding: 0 7vw; }
  .hint { display: none; }
  .services { padding: 8vh 7vw; }
  .sbg { opacity: .18; }
  .srow { grid-template-columns: 30px 1fr; gap: 12px; padding: 10px 8px; }
  .band { padding: 70px 7vw; }
  .pillars { grid-template-columns: 1fr; }
  .vs { grid-template-columns: 1fr; }
  .vs__mid { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 620px) {
  .form-row { grid-template-columns: 1fr; }
  .team__grid { grid-template-columns: 1fr 1fr; }
}
/* Phones: keep the nav on a single row without clipping the CTA. The room nav's
   redundant Back link is dropped (the brand also links home). */
@media (max-width: 520px) {
  :root { --nav-h: 56px; }
  .nav { padding: 10px 5vw; gap: 10px; }
  .nav .brand { font-size: .92rem; }
  .nav .right { gap: 10px; }
  .nav .lng { font-size: .72rem; }
  .nav .cta { padding: 9px 12px; font-size: .64rem; letter-spacing: .03em; }
  .nav .back { display: none; }
}