/* ============================================================================
   Prompt Labs — dark & technical design system
   Hand-rolled. No framework. Motion gated behind prefers-reduced-motion.
   ============================================================================ */

:root {
  /* color */
  --bg:        #0a0a0f;
  --bg-elev:   #13131c;
  --bg-elev-2: #181826;
  --border:    rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text:      #e9e9f0;
  --muted:     #8a8a99;
  --muted-2:   #61616f;
  --accent:    #00e5ff;
  --accent-2:  #4f7cff;
  --accent-ink:#031416;
  --glow:      rgba(0, 229, 255, 0.45);
  --hl:        #d9480f;
  --hl-ink:    #0a0a0f;
  --hl-glow:   rgba(217, 72, 15, 0.45);

  /* type */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body:    "Space Grotesk", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* layout */
  --maxw: 1140px;
  --gutter: clamp(20px, 5vw, 48px);
  --radius: 14px;
  --radius-sm: 10px;

  /* motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.6s;
}

/* ── reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

.skip-link {
  position: fixed; top: -60px; left: 12px; z-index: 200;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: 8px; font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ── scroll progress ───────────────────────────────────────────────────── */
.scroll-progress {
  position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 120;
  background: transparent; pointer-events: none;
}
.scroll-progress span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 10px var(--glow);
}

/* ── buttons ───────────────────────────────────────────────────────────── */
.btn {
  --btn-bg: transparent;
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--font-display); font-weight: 600;
  padding: 0.7em 1.25em; border-radius: 10px;
  border: 1px solid transparent; white-space: nowrap;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
              border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.25s var(--ease);
  will-change: transform;
}
.btn--lg { padding: 0.85em 1.5em; font-size: 1.02rem; }
.btn__arrow { transition: transform 0.25s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(3px); }

.btn--primary {
  position: relative; color: var(--hl-ink);
  background: linear-gradient(135deg, var(--hl), #f0692e);
  box-shadow: 0 0 0 rgba(217,72,15,0), 0 8px 24px -10px var(--hl-glow);
  overflow: hidden;
}
.btn--primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.45) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform 0.6s var(--ease);
}
.btn--primary:hover { box-shadow: 0 0 22px -2px var(--hl-glow), 0 10px 30px -10px var(--hl-glow); }
.btn--primary:hover::after { transform: translateX(120%); }

.btn--ghost {
  color: var(--text);
  border-color: var(--border-strong);
  background: rgba(255,255,255,0.02);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); box-shadow: 0 0 18px -6px var(--glow); }

/* ── shared section bits ───────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--accent);
  display: inline-flex; align-items: center; gap: 0.6em; margin-bottom: 1rem;
}
.eyebrow__num { color: var(--muted-2); }

.section { padding: clamp(64px, 10vw, 120px) 0; position: relative; }
.section--alt { background: linear-gradient(180deg, var(--bg), #0c0c14 50%, var(--bg)); }
.section__head { max-width: 640px; margin-bottom: clamp(40px, 6vw, 64px); }
.section__title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.7rem, 4vw, 2.6rem); line-height: 1.1; letter-spacing: -0.02em;
}
.section__lede { color: var(--muted); margin-top: 1rem; font-size: 1.08rem; }
.section__lede-accent { color: var(--text); }

/* ── nav ───────────────────────────────────────────────────────────────── */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(10,10,15,0.6);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: transform 0.4s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.is-scrolled { border-bottom-color: var(--border); background: rgba(10,10,15,0.82); }
.nav.is-hidden { transform: translateY(-100%); }
.nav__inner { display: flex; align-items: center; gap: 1.5rem; height: 66px; }

.brand {
  display: inline-flex; align-items: baseline; font-family: var(--font-display); font-weight: 700;
  font-size: 1.15rem; letter-spacing: -0.02em; line-height: 1; white-space: nowrap;
}
/* logo lockup: "prompt labs" + chevron and cursor block, sized as in the brand files */
.brand__mark { flex: none; width: 0.978em; height: 0.77em; margin-left: 0.18em; color: var(--hl); }

.nav__links { margin-left: auto; display: flex; gap: 1.75rem; }
.nav__links a {
  font-size: 0.95rem; color: var(--muted); position: relative; padding: 4px 0;
  transition: color 0.2s var(--ease);
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 0;
  background: var(--accent); transition: width 0.25s var(--ease); box-shadow: 0 0 8px var(--glow);
}
.nav__links a:hover, .nav__links a.is-active { color: var(--text); }
.nav__links a:hover::after, .nav__links a.is-active::after { width: 100%; }

.nav__cta { font-size: 0.92rem; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; margin-left: auto; }
.nav__toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; flex-direction: column; gap: 0.25rem;
  padding: 1rem var(--gutter) 1.5rem;
  background: rgba(12,12,20,0.96); border-bottom: 1px solid var(--border);
}
.mobile-menu a { padding: 0.85rem 0; color: var(--muted); font-family: var(--font-display); font-weight: 500; border-bottom: 1px solid var(--border); }
.mobile-menu a:last-child { border-bottom: none; margin-top: 0.75rem; justify-content: center; }
.mobile-menu.is-open { display: flex; }

/* ── hero ──────────────────────────────────────────────────────────────── */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  padding-top: 66px; overflow: hidden;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.9; }
.hero__grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 40%, black, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, black, transparent 78%);
}
.hero__glow {
  position: absolute; z-index: 0; top: -10%; left: 50%; transform: translateX(-50%);
  width: min(900px, 90vw); aspect-ratio: 1; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(0,229,255,0.16), rgba(79,124,255,0.06) 40%, transparent 65%);
  filter: blur(20px);
}
.hero__inner { position: relative; z-index: 1; padding-block: 8vh; max-width: 760px; }
.hero__title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.6rem, 8vw, 5rem); line-height: 1.02; letter-spacing: -0.03em;
  margin: 0.25em 0 0.5em;
}
.hero__title-accent {
  background: linear-gradient(120deg, var(--hl), #f0692e);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__sub { font-size: clamp(1.05rem, 2.2vw, 1.3rem); color: var(--muted); max-width: 56ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2rem; }
.hero__hint {
  margin-top: 2.5rem; font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted-2);
  display: inline-flex; align-items: center; gap: 0.6em;
}
.pulse-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 var(--glow); animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0,229,255,0.5); }
  70% { box-shadow: 0 0 0 9px rgba(0,229,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,229,255,0); }
}

/* ── trust bar ─────────────────────────────────────────────────────────── */
.trust { padding: 2.5rem 0; border-block: 1px solid var(--border); background: var(--bg-elev); }
.trust__label {
  text-align: center; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--muted-2); margin-bottom: 1.4rem;
}
.trust__marquee {
  position: relative; overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
}
.trust__track {
  display: flex; gap: 3rem; width: max-content;
  animation: marquee 32s linear infinite;
}
.trust__track li { font-family: var(--font-mono); font-size: 1rem; color: var(--muted); white-space: nowrap; }
.trust__marquee:hover .trust__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ── cards (services) ──────────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.card {
  position: relative; padding: 1.6rem; border-radius: var(--radius);
  background: var(--bg-elev); border: 1px solid var(--border);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
  overflow: hidden;
}
.card::before {
  /* cursor spotlight */
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity 0.3s var(--ease);
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), rgba(0,229,255,0.10), transparent 60%);
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--bg-elev-2); }
.card:hover::before { opacity: 1; }
.card__icon {
  display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 1rem;
  border-radius: 10px; background: rgba(0,229,255,0.08); color: var(--accent);
  font-size: 1.2rem; border: 1px solid rgba(0,229,255,0.18);
}
.card h3 { font-family: var(--font-display); font-size: 1.18rem; font-weight: 600; margin-bottom: 0.5rem; letter-spacing: -0.01em; }
.card p { color: var(--muted); font-size: 0.97rem; position: relative; }

/* ── approach steps ────────────────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; counter-reset: step; }
.step {
  position: relative; padding: 1.5rem; border-radius: var(--radius);
  background: var(--bg-elev); border: 1px solid var(--border);
}
.step::after {
  content: ""; position: absolute; top: 50%; right: -0.6rem; width: 0.6rem; height: 1px; background: var(--border-strong);
}
.step:last-child::after { display: none; }
.step__num { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent); }
.step h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin: 0.7rem 0 0.4rem; }
.step p { color: var(--muted); font-size: 0.94rem; }

/* ── selected work (hold to reveal) ────────────────────────────────────── */
.work { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
.work__card {
  position: relative; padding: 1.5rem; border-radius: var(--radius);
  background: var(--bg-elev); border: 1px solid var(--border); cursor: default;
  transition: border-color 0.35s var(--ease), background 0.35s var(--ease), transform 0.35s var(--ease);
  overflow: hidden;
}
.work__card[data-open="true"], .work__card:focus-visible {
  border-color: rgba(0,229,255,0.4); background: var(--bg-elev-2);
}
.work__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 0.9rem; }
.work__domain { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-2); }
.work__title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; letter-spacing: -0.01em; cursor: pointer; }
.work__hint {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted-2); margin-top: 0.5rem;
  opacity: 0.7; transition: opacity 0.3s var(--ease);
}
.work__card[data-charging="true"] .work__hint { color: var(--accent); opacity: 1; }
.work__card[data-open="true"] .work__hint { display: none; }

/* charge ring */
.work__charge { width: 22px; height: 22px; opacity: 0; transition: opacity 0.2s var(--ease); }
.work__card[data-charging="true"] .work__charge { opacity: 1; }
.work__charge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.work__charge-track { fill: none; stroke: var(--border-strong); stroke-width: 3; }
.work__charge-fill {
  fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round;
  stroke-dasharray: 94.2; stroke-dashoffset: 94.2;
  filter: drop-shadow(0 0 4px var(--glow));
}
.work__card[data-open="true"] .work__charge { opacity: 1; }
.work__card[data-open="true"] .work__charge-fill { stroke-dashoffset: 0; }

/* detail reveal */
.work__detail {
  display: grid; grid-template-rows: 0fr; opacity: 0;
  transition: grid-template-rows 0.45s var(--ease), opacity 0.45s var(--ease), margin-top 0.45s var(--ease);
  margin-top: 0;
}
.work__detail > * { overflow: hidden; min-height: 0; }
.work__card[data-open="true"] .work__detail { grid-template-rows: 1fr; opacity: 1; margin-top: 0.9rem; }
.work__detail p { color: var(--muted); font-size: 0.95rem; }

.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.9rem; }
.tags li {
  font-family: var(--font-mono); font-size: 0.72rem; padding: 0.25em 0.7em; border-radius: 999px;
  background: rgba(0,229,255,0.07); border: 1px solid rgba(0,229,255,0.18); color: var(--accent);
}

/* ── why + stats ───────────────────────────────────────────────────────── */
.why { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.why__list { margin-top: 1.5rem; display: grid; gap: 1rem; }
.why__list li { position: relative; padding-left: 1.5rem; color: var(--muted); }
.why__list li::before { content: "▹"; position: absolute; left: 0; color: var(--accent); }
.why__list strong { color: var(--text); font-weight: 600; }
.stats { display: grid; gap: 1rem; }
.stat {
  padding: 1.5rem 1.6rem; border-radius: var(--radius); background: var(--bg-elev); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 0.3rem;
}
.stat__num { font-family: var(--font-display); font-weight: 700; font-size: clamp(2rem, 5vw, 2.8rem); color: var(--hl); line-height: 1; letter-spacing: -0.02em; }
.stat__label { color: var(--muted); font-size: 0.95rem; }

/* ── cta band ──────────────────────────────────────────────────────────── */
.cta-band { padding: clamp(56px, 8vw, 96px) 0; position: relative; overflow: hidden; }
.cta-band::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(0,229,255,0.14), transparent 60%);
}
.cta-band__inner { position: relative; z-index: 1; text-align: center; max-width: 620px; }
.cta-band h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.8rem, 5vw, 3rem); letter-spacing: -0.02em; }
.cta-band p { color: var(--muted); font-size: 1.2rem; margin: 0.6rem 0 1.8rem; }

/* ── contact form ──────────────────────────────────────────────────────── */
.contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem, 6vw, 4.5rem); align-items: start; }
.contact__alt { margin-top: 1.4rem; color: var(--muted); font-size: 0.95rem; }
.contact__alt a { color: var(--accent); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.contact__alt a:hover { border-bottom-color: var(--accent); }

.form { display: grid; gap: 1rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { display: grid; gap: 0.45rem; }
.field__label { font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.field__opt { color: var(--muted-2); }
.field input, .field textarea {
  font: inherit; color: var(--text); width: 100%;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 0.8rem 0.95rem; transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted-2); }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,229,255,0.12);
}
.field input:user-invalid, .field textarea:user-invalid { border-color: #ff5c7a; }
.form__actions { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; margin-top: 0.4rem; }
.form__status { font-size: 0.92rem; color: var(--muted); }
.form__status.is-ok { color: var(--accent); }
.form__status.is-err { color: #ff7a90; }
.form__hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form.is-sending .btn--primary { opacity: 0.7; pointer-events: none; }

/* ── footer ────────────────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border); padding: 3rem 0; background: var(--bg-elev); }
.footer__inner { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between; align-items: start; }
.footer__brand .brand { font-size: 1.1rem; }
.footer__brand p { color: var(--muted); font-size: 0.9rem; margin-top: 0.3rem; }
.footer__nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer__nav a { color: var(--muted); font-size: 0.92rem; transition: color 0.2s; }
.footer__nav a:hover { color: var(--accent); }
.footer__meta { text-align: right; }
.footer__meta a { color: var(--text); font-size: 0.92rem; }
.footer__meta a:hover { color: var(--accent); }
.footer__meta p { color: var(--muted-2); font-size: 0.82rem; margin-top: 0.4rem; }
.footer__legal { margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid var(--border); color: var(--muted-2); font-size: 0.78rem; line-height: 1.6; }
.footer__legal a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }
.footer__legal a:hover { color: var(--accent); }

/* form privacy line */
.form__note { color: var(--muted-2); font-size: 0.82rem; }
.form__note a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }

/* privacy notice page */
.legal { max-width: 760px; padding-top: calc(84px + clamp(32px, 6vw, 72px)); padding-bottom: clamp(56px, 8vw, 96px); }
.legal__title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2rem, 6vw, 3rem); letter-spacing: -0.02em; margin: 0.3em 0 0.2em; }
.legal__updated { color: var(--muted-2); font-family: var(--font-mono); font-size: 0.8rem; margin-bottom: 2rem; }
.legal h2 { font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; margin: 2.4rem 0 0.7rem; }
.legal h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; margin: 1.6rem 0 0.5rem; }
.legal p, .legal li { color: var(--muted); line-height: 1.7; }
.legal p + p { margin-top: 0.8rem; }
.legal ul { margin: 0.6rem 0 0.8rem; padding-left: 1.3rem; list-style: disc; }
.legal li + li { margin-top: 0.4rem; }
.legal li::marker { color: var(--muted-2); }
.legal strong { color: var(--text); font-weight: 600; }
.legal a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.nav__back { margin-left: auto; padding: 0.5em 1em; font-size: 0.9rem; }

/* ── floating instrument ───────────────────────────────────────────────── */
.instrument {
  position: fixed; z-index: 90; bottom: 22px; right: 22px; width: 320px; max-width: calc(100vw - 32px);
  background: rgba(16,16,24,0.82); backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid rgba(0,229,255,0.22); border-radius: var(--radius);
  box-shadow: 0 18px 50px -18px rgba(0,0,0,0.7), 0 0 30px -16px var(--glow);
  font-family: var(--font-mono); overflow: hidden;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.instrument[hidden] { display: none; }
.instrument.is-enter { opacity: 0; transform: translateY(16px) scale(0.98); }
.instrument__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.55rem 0.7rem 0.55rem 0.85rem; cursor: grab;
  border-bottom: 1px solid var(--border); background: rgba(0,229,255,0.04);
  user-select: none;
}
.instrument__bar:active { cursor: grabbing; }
.instrument__title { display: inline-flex; align-items: center; gap: 0.5em; font-size: 0.78rem; color: var(--muted); }
.instrument__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--glow); animation: blink 1.6s infinite; }
@keyframes blink { 50% { opacity: 0.35; } }
.instrument__controls { display: flex; gap: 0.15rem; }
.instrument__btn { width: 26px; height: 24px; border-radius: 6px; color: var(--muted); font-size: 1rem; line-height: 1; transition: background 0.2s, color 0.2s; }
.instrument__btn:hover { background: rgba(255,255,255,0.07); color: var(--text); }
.instrument__body { padding: 0.85rem 0.95rem 0.95rem; }
.instrument__meta { font-size: 0.72rem; color: var(--muted-2); min-height: 1.1em; }
.instrument__reading { font-size: 0.86rem; line-height: 1.55; color: var(--text); margin-top: 0.5rem; min-height: 3.5em; white-space: pre-wrap; }
.instrument__reading .caret { color: var(--accent); animation: blink 1s steps(1) infinite; }
.instrument__sigil { width: 100%; height: 64px; margin-top: 0.7rem; border-radius: 8px; background: rgba(0,0,0,0.25); }
.instrument__actions { display: flex; gap: 0.5rem; margin-top: 0.7rem; flex-wrap: wrap; }
.instrument__action {
  font-family: var(--font-mono); font-size: 0.74rem; padding: 0.4em 0.7em; border-radius: 7px;
  border: 1px solid var(--border-strong); color: var(--muted); transition: all 0.2s var(--ease);
}
.instrument__action:hover:not(:disabled) { color: var(--accent); border-color: var(--accent); }
.instrument__action:disabled { opacity: 0.4; cursor: default; }
.instrument__action--ghost { border-color: transparent; }
.instrument__payload {
  margin-top: 0.6rem; padding: 0.6rem; border-radius: 7px; background: rgba(0,0,0,0.4);
  border: 1px solid var(--border); font-size: 0.68rem; color: var(--muted);
  max-height: 180px; overflow: auto; white-space: pre-wrap; word-break: break-word;
}
.instrument__privacy { margin-top: 0.7rem; font-size: 0.66rem; color: var(--muted-2); line-height: 1.4; }

.instrument[data-state="minimized"] .instrument__body { display: none; }

.instrument-chip {
  position: fixed; z-index: 90; bottom: 22px; right: 22px;
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--text);
  padding: 0.55em 0.9em; border-radius: 999px;
  background: rgba(16,16,24,0.9); border: 1px solid rgba(0,229,255,0.3);
  box-shadow: 0 10px 30px -12px rgba(0,0,0,0.7), 0 0 18px -8px var(--glow);
  transition: transform 0.2s var(--ease);
}
.instrument-chip[hidden] { display: none; }
.instrument-chip:hover { transform: translateY(-2px); }

/* ── reveal animation ──────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.cards .reveal.is-visible, .steps .reveal.is-visible, .work .reveal.is-visible { transition-delay: var(--stagger, 0ms); }

/* ── responsive ────────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .work { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .why { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .cards, .work, .steps { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__meta { text-align: left; }
  .footer__inner { flex-direction: column; }

  /* instrument → bottom sheet */
  .instrument {
    left: 0; right: 0; bottom: 0; width: 100%; max-width: 100%;
    border-radius: 16px 16px 0 0; border-bottom: none;
  }
  .instrument__bar { cursor: default; }
  .instrument-chip { bottom: 16px; right: 16px; }
}

/* ── reduced motion ────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important; scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .trust__track { animation: none; }
  .work__detail { transition: none; }
}