/* Mitus Labs: machined steel. Light bead-blasted steel page that matches the studio renders,
   graphite type and bands, signal red (from the trackball / TrackPoint) used sparingly. */
:root {
  --bg: #e6e7e9;            /* = render studio sweep, so product shots sit seamlessly */
  --bg-2: #eff0f2;          /* raised panel */
  --bg-3: #d9dbde;
  --steel: linear-gradient(180deg, #f6f7f8 0%, #dcdee1 48%, #cfd2d6 52%, #e4e6e8 100%);
  --graphite: #17191c;
  --graphite-2: #23262b;
  --line: rgba(23, 25, 28, 0.12);
  --text: #17191c;
  --muted: #555c65;
  --accent: #c8162d;
  --accent-rgb: 200, 22, 45;
  --display: 'Chakra Petch', 'Inter', system-ui, sans-serif;
  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--sans);
  background-image: repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0 1px, transparent 1px 3px);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-family: var(--display); letter-spacing: 0.01em; line-height: 1.12; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.2rem; }
p { color: var(--muted); }
b { color: var(--text); font-weight: 600; }

.nav {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px clamp(16px, 4vw, 48px); background: rgba(23, 25, 28, 0.94);
  backdrop-filter: blur(12px); border-bottom: 1px solid #000;
}
.brand { font-family: var(--display); font-weight: 700; color: #f2f3f5; letter-spacing: 0.12em; white-space: nowrap; }
.brand:hover { text-decoration: none; }
.mark { color: var(--accent); }
.nav nav { display: flex; align-items: center; gap: 22px; font-size: 0.92rem; }
.nav nav a { color: #a9afb7; }
.nav nav a:hover { color: #fff; text-decoration: none; }
@media (max-width: 860px) { .nav nav a:not(.btn) { display: none; } }

.btn {
  display: inline-block; padding: 12px 22px; border-radius: 999px; background: var(--accent); color: #fff !important;
  font-weight: 600; border: 1px solid var(--accent); transition: box-shadow .2s, transform .2s;
}
.btn:hover { text-decoration: none; box-shadow: 0 0 32px rgba(var(--accent-rgb), .35); transform: translateY(-1px); }
.btn.ghost { background: var(--steel); color: var(--text) !important; border-color: rgba(23,25,28,.22); box-shadow: inset 0 1px 0 #fff; }
.btn.ghost:hover { box-shadow: inset 0 1px 0 #fff, 0 6px 18px rgba(0,0,0,.12); }
.btn.small { padding: 7px 14px; font-size: .85rem; }

main > section { padding: clamp(56px, 9vw, 120px) clamp(16px, 5vw, 64px); max-width: 1240px; margin: 0 auto; }
.eyebrow { font-family: var(--mono); font-size: .78rem; letter-spacing: .18em; color: var(--accent); margin: 0 0 12px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.note { font-size: .95rem; max-width: 680px; }
.meta { font-family: var(--mono); font-size: .82rem; color: var(--muted); margin: -4px 0 10px; }

.hero { display: grid; grid-template-columns: 1.05fr 1.2fr; align-items: center; gap: clamp(24px, 4vw, 56px); padding-top: clamp(40px, 6vw, 80px) !important; }
.lede { font-size: 1.12rem; max-width: 520px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-family: var(--mono); font-size: .75rem; color: var(--muted); background: var(--bg-2); border: 1px solid var(--line); padding: 5px 11px; border-radius: 999px; }
.hero-img img, .split figure img { border-radius: var(--radius); }
figure { margin: 0; }

.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(24px, 5vw, 64px); align-items: center; }
.split.reverse { grid-template-columns: 1fr 1.1fr; }
.steps { padding-left: 1.2em; color: var(--muted); }
.steps li { margin: 0 0 12px; }
.steps li::marker { color: var(--accent); font-family: var(--mono); }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; }
.card, .tier { background: var(--bg-2); box-shadow: inset 0 1px 0 #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .2s, transform .2s; }
.card:hover, .tier:hover { border-color: rgba(23,25,28,.35); box-shadow: inset 0 1px 0 #fff, 0 14px 30px rgba(0,0,0,.08); transform: translateY(-3px); }
.card img, .tier img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.card h3, .card p, .tier h3, .tier p, .tier ul { padding: 0 18px; }
.card h3, .tier h3 { margin-top: 16px; }
.card p { font-size: .93rem; padding-bottom: 8px; }

.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.tier ul { color: var(--muted); font-size: .93rem; padding-left: 36px; padding-bottom: 18px; margin: 0; }
.tier img { aspect-ratio: 12 / 7; }
.tier.featured { border-color: var(--graphite); box-shadow: 0 0 0 1px var(--graphite), 0 18px 40px rgba(0,0,0,.12); }

.repair { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: .93rem; }
.repair td { padding: 10px 8px; border-bottom: 1px solid var(--line); color: var(--muted); vertical-align: top; }
.repair td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
.repair td:last-child { font-family: var(--mono); color: var(--text); white-space: nowrap; text-align: right; }

.layout { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(12px, 3vw, 32px); margin: 36px auto 12px; color: #1d2329; }
.layout img { width: 100%; }

.specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 40px; max-width: 900px; margin: 36px auto 0; }
.specs div { display: grid; grid-template-columns: 130px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.specs dt { font-family: var(--mono); font-size: .8rem; color: var(--muted); padding-top: 2px; }
.specs dd { margin: 0; color: var(--text); font-size: .95rem; }

.launch { text-align: center; background: var(--graphite); color: #f2f3f5; max-width: none !important;
  background-image: radial-gradient(ellipse at 50% 0%, rgba(255,255,255,.08), transparent 60%); }
.launch p { max-width: 520px; margin: 0 auto 28px; color: #a9afb7; }

.viewer { position: relative; margin: 36px auto 0; border-radius: var(--radius); overflow: hidden;
  background: radial-gradient(ellipse at 50% 35%, #f4f5f6, var(--bg) 70%); border: 1px solid var(--line); }
.viewer model-viewer { width: 100%; height: clamp(340px, 58vw, 620px); --poster-color: transparent; background: transparent; }
.tier-switch { position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%); display: flex; gap: 4px; padding: 4px;
  background: rgba(23, 25, 28, .88); border-radius: 999px; }
.tier-switch button { font: 600 .82rem var(--sans); color: #a9afb7; background: transparent; border: 0; padding: 8px 14px;
  border-radius: 999px; cursor: pointer; white-space: nowrap; }
.tier-switch button[aria-pressed="true"] { background: var(--steel); color: var(--text); }
.tier-switch button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 520px) { .tier-switch button { padding: 7px 10px; font-size: .76rem; } }

footer { padding: 32px 16px 48px; text-align: center; background: var(--graphite-2); border-top: 1px solid #000; }
footer p { color: #a9afb7; }
footer a { color: #f2f3f5; }
footer p { margin: 4px 0; font-size: .9rem; }
footer .small { font-size: .78rem; opacity: .7; }

@media (max-width: 960px) {
  .hero, .split, .split.reverse { grid-template-columns: 1fr; }
  .split.reverse > div { order: 2; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .tiers { grid-template-columns: 1fr; max-width: 520px; margin-left: auto; margin-right: auto; }
  .specs { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
  .specs div { grid-template-columns: 100px 1fr; }
  .repair td:first-child { white-space: normal; }
}

/* Slider: one panel, tabs underneath (attachments + electronics) */
.slider { max-width: 1040px; margin: 40px auto 0; }
.slides { position: relative; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: inset 0 1px 0 #fff; overflow: hidden; }
.slide { display: grid; grid-template-columns: 1.6fr 1fr; align-items: center; animation: fade .35s ease; }
.slide[hidden] { display: none; }
.slide img { width: 100%; aspect-ratio: 7 / 5; object-fit: cover; }
.slide figcaption { padding: 28px 64px 28px 28px; }
.slide figcaption p { margin: 0; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid rgba(23,25,28,.22); background: rgba(239,240,242,.9); color: var(--text); font: 600 1.4rem/1 var(--sans);
  cursor: pointer; display: grid; place-items: center; padding: 0 0 3px; }
.arrow:hover { border-color: var(--graphite); }
.arrow.prev { left: 12px; } .arrow.next { right: 12px; }
.slider-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px; margin: 16px auto 0; padding: 4px;
  width: fit-content; max-width: 100%; background: var(--graphite); border-radius: 999px; }
.slider-tabs button { font: 600 .85rem var(--sans); color: #a9afb7; background: transparent; border: 0; padding: 8px 16px;
  border-radius: 999px; cursor: pointer; white-space: nowrap; }
.slider-tabs button[aria-selected="true"] { background: var(--steel); color: var(--text); }
.slider-tabs button:focus-visible, .arrow:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
/* Electronics: diagrams need the full width and must not be cropped */
.schem .slide { grid-template-columns: 1fr; background: #fff; }
.schem .slide img { aspect-ratio: auto; object-fit: contain; max-height: 640px; padding: clamp(8px, 2vw, 24px) clamp(8px, 4vw, 56px); }
.schem .slide a { display: block; cursor: zoom-in; }
.schem .slide figcaption { padding: 0 24px 20px; text-align: center; }
.schem .arrow { top: auto; bottom: 12px; transform: none; }
@media (max-width: 760px) {
  .slide { grid-template-columns: 1fr; }
  .slide figcaption { padding: 18px 20px 64px; }
  .arrow { top: auto; bottom: 12px; transform: none; }
  .slider-tabs { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  .slider-tabs button { padding: 7px 11px; font-size: .78rem; }
}

/* Launch-list sign-up */
.signup[hidden] { display: none; }
.signup { display: flex; gap: 10px; max-width: 480px; margin: 0 auto; }
.signup input[type=email] { flex: 1; min-width: 0; padding: 12px 18px; border-radius: 999px; border: 1px solid #3a3f46;
  background: #0f1113; color: #f2f3f5; font: 1rem var(--sans); }
.signup input[type=email]:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-color: transparent; }
.signup .btn { cursor: pointer; font: 600 1rem var(--sans); }
.signup .btn:disabled { opacity: .6; cursor: wait; }
.hp, .sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.launch .signup-msg { min-height: 1.6em; margin: 14px auto 0; font-size: .95rem; }
.launch .signup-msg.ok { color: #f2f3f5; font-weight: 600; }
.launch .signup-msg.err { color: #ff8a98; }
@media (max-width: 520px) { .signup { flex-direction: column; } }

/* Hero sign-up: email box right under the pitch */
.hero-signup { margin: 28px 0 0; max-width: 520px; }
.hero-signup input[type=email] { background: #fff; color: var(--text); border-color: rgba(23,25,28,.25); }
.hero-signup input[type=email]::placeholder { color: #8a9099; }
.hero .signup-msg { min-height: 1.4em; margin: 10px 0 0; font-size: .92rem; }
.hero .signup-msg.ok { color: var(--text); font-weight: 600; }
.hero .signup-msg.err { color: var(--accent); }
.cta-sub { font-size: .9rem; margin: 6px 0 24px; }
.cta-sub a { font-weight: 600; }