/* ============================================================
   KNOTLESS — styles.css
   Palette: graphite black, warm-white ink, brushed-chrome accent
   Type:    Archivo (display, wide) · Instrument Sans (body) · IBM Plex Mono (spec labels)
   ============================================================ */

:root {
  --bg: #08090b;
  --bg-2: #0d0f13;
  --surface: #111318;
  --line: rgba(235, 238, 243, 0.09);
  --line-strong: rgba(235, 238, 243, 0.18);
  --ink: #edeef0;
  --muted: #989ea8;
  --chrome-1: #f5f6f8;
  --chrome-2: #b9bec6;
  --chrome-3: #7e848e;
  --glow: rgba(190, 205, 225, 0.07);

  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --wrap: 1180px;
  --radius: 18px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: #d7dbe2; color: #0a0b0d; }

/* ---------- Utilities ---------- */
.wrap { width: min(var(--wrap), 100% - 48px); margin-inline: auto; }
.wrap.narrow { max-width: 820px; }
.mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}
.chrome {
  background: linear-gradient(105deg, var(--chrome-1) 0%, var(--chrome-2) 38%, var(--chrome-3) 55%, var(--chrome-1) 78%, var(--chrome-2) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: chromeShift 9s linear infinite;
}
@keyframes chromeShift { to { background-position: -220% 0; } }

.eyebrow { display: inline-block; margin-bottom: 20px; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 720;
  line-height: 1.02;
  letter-spacing: -0.015em;
}
h2 { font-size: clamp(2.1rem, 4.6vw, 3.6rem); font-stretch: 112%; text-transform: uppercase; }
h3 { font-size: 1.25rem; font-stretch: 105%; line-height: 1.2; letter-spacing: 0; }

.lede { color: var(--muted); font-size: clamp(1.02rem, 1.4vw, 1.18rem); max-width: 56ch; }

.section { padding: clamp(88px, 12vw, 150px) 0; position: relative; }
.section-head { margin-bottom: clamp(44px, 6vw, 72px); max-width: 760px; }
.section-head .lede { margin-top: 18px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-stretch: 105%;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  border: 1px solid var(--line-strong);
  transition: transform 0.35s var(--ease), background 0.3s, border-color 0.3s, box-shadow 0.3s;
  will-change: transform;
}
.btn-solid {
  background: linear-gradient(140deg, var(--chrome-1), var(--chrome-2));
  color: #0a0b0d;
  border-color: transparent;
  box-shadow: 0 0 0 0 rgba(230, 235, 242, 0);
}
.btn-solid:hover { box-shadow: 0 8px 34px -8px rgba(220, 228, 240, 0.45); }
.btn-ghost { background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(8px); }
.btn-ghost:hover { border-color: rgba(235, 238, 243, 0.4); background: rgba(255, 255, 255, 0.06); }
.btn .arrow { transition: transform 0.3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid #dfe3ea;
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 100;
  background: var(--bg);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 26px;
  transition: opacity 0.7s var(--ease), visibility 0.7s;
}
.loader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-mark { display: flex; gap: 0.08em; font-family: var(--font-display); font-stretch: 118%; font-weight: 780; font-size: clamp(1.6rem, 4vw, 2.6rem); letter-spacing: 0.14em; }
.loader-mark span { opacity: 0; transform: translateY(0.6em); animation: letterUp 0.7s var(--ease) forwards; }
.loader-mark span:nth-child(1) { animation-delay: 0.05s; }
.loader-mark span:nth-child(2) { animation-delay: 0.11s; }
.loader-mark span:nth-child(3) { animation-delay: 0.17s; }
.loader-mark span:nth-child(4) { animation-delay: 0.23s; }
.loader-mark span:nth-child(5) { animation-delay: 0.29s; }
.loader-mark span:nth-child(6) { animation-delay: 0.35s; }
.loader-mark span:nth-child(7) { animation-delay: 0.41s; }
.loader-mark span:nth-child(8) { animation-delay: 0.47s; }
@keyframes letterUp { to { opacity: 1; transform: none; } }
.loader-line { width: min(280px, 60vw); height: 1px; background: var(--line); overflow: hidden; }
.loader-line i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--chrome-2), var(--chrome-1)); transition: width 0.25s linear; }
.loader-tag { opacity: 0; animation: fadeIn 0.8s 0.6s forwards; }
@keyframes fadeIn { to { opacity: 1; } }

/* ---------- Progress + ambient glow ---------- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60; background: transparent; }
.progress i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--chrome-3), var(--chrome-1)); }
.glow {
  position: fixed; z-index: 0; pointer-events: none;
  width: 720px; height: 720px; border-radius: 50%;
  background: radial-gradient(circle, var(--glow) 0%, transparent 62%);
  transform: translate(-50%, -50%);
  left: 50vw; top: 30vh;
  transition: opacity 0.4s;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8, 9, 11, 0.72);
  backdrop-filter: blur(18px) saturate(1.3);
  border-bottom-color: var(--line);
}
.nav-inner {
  width: min(var(--wrap), 100% - 48px);
  margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-display); font-stretch: 118%; font-weight: 750; letter-spacing: 0.16em; font-size: 0.95rem; }
.nav-links { display: flex; gap: 34px; }
.nav-links a { font-size: 0.9rem; color: var(--muted); position: relative; transition: color 0.25s; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 100%; height: 1px; background: var(--ink); transform: scaleX(0); transform-origin: right; transition: transform 0.35s var(--ease); }
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-cta .btn { padding: 10px 20px; font-size: 0.82rem; }

.burger { display: none; width: 40px; height: 40px; position: relative; }
.burger span { position: absolute; left: 9px; right: 9px; height: 2px; background: var(--ink); transition: transform 0.35s var(--ease), top 0.35s var(--ease); }
.burger span:first-child { top: 15px; }
.burger span:last-child { top: 23px; }
.burger.open span:first-child { top: 19px; transform: rotate(45deg); }
.burger.open span:last-child { top: 19px; transform: rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 45;
  background: rgba(8, 9, 11, 0.92);
  backdrop-filter: blur(24px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 26px; text-align: center; }
.mobile-menu nav a { font-family: var(--font-display); font-stretch: 110%; font-weight: 650; font-size: 1.5rem; }
.mobile-menu nav .btn { font-size: 1rem; justify-content: center; }

/* ---------- Hero ---------- */
.hero { min-height: 100svh; display: flex; flex-direction: column; justify-content: center; position: relative; padding: 130px 0 60px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 60% 44% at 74% 24%, rgba(170, 185, 205, 0.09), transparent 70%),
    radial-gradient(ellipse 50% 40% at 12% 86%, rgba(140, 150, 165, 0.06), transparent 70%),
    linear-gradient(var(--bg), var(--bg-2));
}
.hero-bg::after {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 68% 60% at 50% 40%, black 30%, transparent 75%);
  opacity: 0.5;
}
.hero-inner {
  width: min(var(--wrap), 100% - 48px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.9rem, 7.4vw, 5.9rem);
  font-stretch: 118%;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin: 6px 0 26px;
}
.hero h1 .line { display: block; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }
.hero-stats { display: flex; gap: clamp(24px, 4vw, 56px); margin-top: 52px; padding-top: 26px; border-top: 1px solid var(--line); }
.hero-stats div { display: flex; flex-direction: column; gap: 4px; }
.hero-stats strong { font-family: var(--font-display); font-stretch: 112%; font-weight: 750; font-size: 2rem; line-height: 1; }

.hero-fig { position: relative; justify-self: center; width: min(400px, 100%); }
.tie-svg { width: 100%; height: auto; filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.55)); }
.hero-fig figcaption { margin-top: 18px; text-align: center; font-size: 0.64rem; }
.mono-svg text { font-family: var(--font-mono); font-size: 12px; fill: var(--muted); letter-spacing: 0.1em; stroke: none; }

.tie-svg .draw { stroke-dasharray: 400; stroke-dashoffset: 400; animation: drawIn 1.6s 0.5s var(--ease) forwards; }
@keyframes drawIn { to { stroke-dashoffset: 0; } }
.tie-svg .fill-in { opacity: 0; animation: fadeIn 1s 1.3s forwards; }
.tie-svg .clasp { opacity: 0; transform-origin: 210px 225px; animation: claspIn 0.9s 1.6s var(--ease) forwards; }
@keyframes claspIn { from { opacity: 0; transform: scale(0.7); } to { opacity: 1; transform: scale(1); } }
.tie-svg .dims { opacity: 0; animation: fadeIn 1.2s 2.2s forwards; }
.tie-svg .arc { opacity: 0; animation: arcPing 3.2s 2.6s ease-out infinite; }
.tie-svg .a2 { animation-delay: 2.85s; }
.tie-svg .a3 { animation-delay: 3.1s; }
@keyframes arcPing {
  0% { opacity: 0; }
  12% { opacity: 0.9; }
  38% { opacity: 0; }
  100% { opacity: 0; }
}

.scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-size: 0.62rem;
}
.scroll-hint i { width: 1px; height: 42px; background: linear-gradient(var(--muted), transparent); display: block; animation: hintDrop 2s var(--ease) infinite; transform-origin: top; }
@keyframes hintDrop { 0% { transform: scaleY(0); } 45% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- Marquee ---------- */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 18px 0; background: var(--bg-2); }
.marquee-track { display: flex; gap: 40px; width: max-content; animation: marquee 26s linear infinite; }
.marquee-track span { font-family: var(--font-display); font-stretch: 118%; font-weight: 700; letter-spacing: 0.22em; font-size: 0.82rem; color: var(--muted); white-space: nowrap; }
.marquee-track em { color: var(--chrome-3); font-style: normal; }
@keyframes marquee { to { transform: translateX(calc(-100% / 3)); } }

/* ---------- Manifesto ---------- */
.statement { font-size: clamp(1.9rem, 4.4vw, 3.3rem); text-transform: none; font-stretch: 106%; font-weight: 680; letter-spacing: -0.02em; line-height: 1.12; margin-bottom: 26px; }

/* ---------- Showcase ---------- */
.show-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.show-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.35s, transform 0.5s var(--ease), box-shadow 0.5s;
  transform-style: preserve-3d;
}
.show-card:hover { border-color: var(--line-strong); box-shadow: 0 30px 70px -30px rgba(0, 0, 0, 0.8); }
.show-img { aspect-ratio: 3 / 3.1; overflow: hidden; }
.show-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease); }
.show-card:hover .show-img img { transform: scale(1.045); }
.show-meta { padding: 26px 26px 30px; display: grid; gap: 10px; }
.show-meta p { color: var(--muted); font-size: 0.95rem; }

/* ---------- How ---------- */
.how { background: var(--bg-2); border-block: 1px solid var(--line); }
.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.step {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px 78px;
  background: rgba(255, 255, 255, 0.015);
  backdrop-filter: blur(6px);
  transition: border-color 0.3s, background 0.3s;
}
.step:hover { border-color: var(--line-strong); background: rgba(255, 255, 255, 0.03); }
.step h3 { margin: 14px 0 10px; }
.step p { color: var(--muted); font-size: 0.95rem; }
.step-time {
  position: absolute; left: 28px; bottom: 24px;
  font-size: 0.95rem; color: var(--ink); letter-spacing: 0.08em;
}
.step-time::before { content: ""; display: inline-block; width: 26px; height: 1px; background: var(--chrome-3); vertical-align: middle; margin-right: 10px; }

/* ---------- Technology ---------- */
.tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.tech-list { list-style: none; margin-top: 34px; display: grid; gap: 0; border-top: 1px solid var(--line); }
.tech-list li { display: grid; grid-template-columns: 130px 1fr; gap: 18px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 0.95rem; }
.tech-list .mono { color: var(--ink); }

.tech-demo { display: flex; justify-content: center; }
.demo-stage {
  width: min(420px, 100%);
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(180, 195, 215, 0.07), transparent 70%),
    var(--surface);
  padding: 56px 30px 34px;
  display: flex; flex-direction: column; align-items: center; gap: 26px;
  position: relative;
  overflow: hidden;
}
.demo-clasp { position: relative; width: 96px; height: 112px; display: grid; place-items: center; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.demo-clasp-face {
  width: 74px; height: 92px; border-radius: 14px;
  background: linear-gradient(135deg, #f2f3f5 0%, #b6bbc3 42%, #7d838d 58%, #c9ced5 100%);
  display: grid; place-items: center;
  color: #14161a;
  box-shadow: 0 18px 44px -12px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.7);
  transition: transform 0.3s var(--ease);
  position: relative; z-index: 2;
}
.demo-clasp:hover .demo-clasp-face, .demo-clasp:focus-visible .demo-clasp-face { transform: scale(1.04); }
.demo-clasp.tapped .demo-clasp-face { animation: tapSquish 0.5s var(--ease); }
@keyframes tapSquish { 30% { transform: scale(0.93); } }
.pulse {
  position: absolute; inset: 0; margin: auto;
  width: 74px; height: 92px; border-radius: 18px;
  border: 1.5px solid rgba(235, 240, 248, 0.75);
  opacity: 0; pointer-events: none;
}
.demo-clasp.tapped .pulse { animation: pulseOut 1.3s ease-out forwards; }
.demo-clasp.tapped .p2 { animation-delay: 0.18s; }
.demo-clasp.tapped .p3 { animation-delay: 0.36s; }
@keyframes pulseOut {
  0% { opacity: 0.9; transform: scale(1); }
  100% { opacity: 0; transform: scale(2.1); }
}
.demo-hint { font-size: 0.66rem; }
.demo-card {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(14px);
  padding: 20px;
  display: grid; gap: 16px;
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
.demo-card.show { opacity: 1; transform: none; }
.demo-card-top { display: flex; gap: 14px; align-items: center; }
.demo-card-top div { display: grid; gap: 2px; }
.demo-card-top .mono { font-size: 0.58rem; }
.avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, #dfe2e8, #8d939d);
  color: #14161a; font-family: var(--font-display); font-weight: 700;
  display: grid; place-items: center; font-size: 0.9rem;
}
.demo-tabs { display: flex; gap: 8px; }
.demo-tabs button {
  flex: 1; padding: 9px 0; border-radius: 10px;
  border: 1px solid var(--line);
  font-size: 0.8rem; color: var(--muted);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.demo-tabs button:hover { color: var(--ink); }
.demo-tabs button.is-active { background: var(--ink); color: #0a0b0d; border-color: transparent; font-weight: 600; }
.demo-share { font-size: 0.62rem; color: #b9c2ce; }

/* ---------- Materials ---------- */
.mat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 64px; }
.mat-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: var(--surface); display: grid; gap: 12px; transition: border-color 0.3s, transform 0.4s var(--ease); }
.mat-card:hover { border-color: var(--line-strong); transform: translateY(-4px); }
.mat-card > p:last-child { color: var(--muted); font-size: 0.95rem; }
.swatch { height: 120px; border-radius: 12px; margin-bottom: 8px; border: 1px solid var(--line); position: relative; overflow: hidden; }
.swatch-fabric {
  background:
    repeating-linear-gradient(45deg, #17191e 0 3px, #0e1013 3px 6px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,0.03) 0 3px, transparent 3px 6px);
}
.swatch-steel { background: linear-gradient(120deg, #eef0f3 0%, #a9aeb7 34%, #6f757f 52%, #cdd2d9 74%, #8c929b 100%); }
.swatch-steel::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(120deg, rgba(255,255,255,0.14) 0 1px, transparent 1px 4px); }
.swatch-leather {
  background:
    radial-gradient(ellipse at 30% 20%, rgba(255,255,255,0.07), transparent 50%),
    #241a14;
}
.swatch-leather::after { content: ""; position: absolute; inset: 0; background: repeating-radial-gradient(circle at 60% 60%, transparent 0 7px, rgba(0,0,0,0.25) 7px 8px); opacity: 0.5; }

.engrave {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 70px);
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(30px, 4vw, 56px);
  background:
    radial-gradient(ellipse 70% 90% at 85% 50%, rgba(180, 195, 215, 0.05), transparent 70%),
    var(--bg-2);
}
.engrave-copy h3 { font-size: 1.6rem; margin-bottom: 12px; }
.engrave-copy p { color: var(--muted); margin-bottom: 24px; }
.engrave-copy input {
  width: min(300px, 100%);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--ink);
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  font-size: 1rem;
  transition: border-color 0.25s;
}
.engrave-copy input::placeholder { color: var(--muted); }
.engrave-copy input:focus { border-color: #cfd4dc; outline: none; }
.engrave-preview { display: flex; justify-content: center; }
.engrave-clasp {
  width: 150px; height: 190px; border-radius: 20px;
  background: linear-gradient(135deg, #f2f3f5 0%, #b6bbc3 40%, #7d838d 58%, #c9ced5 100%);
  box-shadow: 0 30px 70px -20px rgba(0, 0, 0, 0.75), inset 0 1px 0 rgba(255,255,255,0.7);
  display: grid; place-items: center;
  position: relative;
  overflow: hidden;
}
.engrave-clasp::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(120deg, rgba(255,255,255,0.12) 0 1px, transparent 1px 5px); }
.engrave-clasp span {
  font-family: var(--font-display); font-stretch: 112%; font-weight: 700;
  font-size: 1.35rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: #3c4048;
  text-shadow: 0 1px 0 rgba(255,255,255,0.5);
  max-width: 90%; text-align: center; word-break: break-word; line-height: 1.15;
}

/* ---------- Specs ---------- */
.specs { background: var(--bg-2); border-block: 1px solid var(--line); }
.spec-table { border-top: 1px solid var(--line-strong); }
.spec-row {
  display: grid; grid-template-columns: 200px 170px 1fr;
  gap: 24px; align-items: baseline;
  padding: 22px 4px;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s, padding-left 0.35s var(--ease);
}
.spec-row:hover { background: rgba(255, 255, 255, 0.02); padding-left: 14px; }
.spec-row strong { font-family: var(--font-display); font-stretch: 110%; font-size: 1.35rem; font-weight: 720; }
.spec-row p { color: var(--muted); font-size: 0.92rem; }

/* ---------- Cases ---------- */
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.case { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: var(--surface); display: grid; gap: 14px; align-content: start; transition: border-color 0.3s, transform 0.4s var(--ease); }
.case:hover { border-color: var(--line-strong); transform: translateY(-4px); }
.case p { color: var(--muted); font-size: 0.93rem; }

/* ---------- Quotes ---------- */
.quotes { background: var(--bg-2); border-block: 1px solid var(--line); }
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.quote { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; background: rgba(255,255,255,0.015); display: grid; gap: 22px; align-content: space-between; }
.quote p { font-size: 1.02rem; line-height: 1.55; }
.quote footer { display: grid; gap: 3px; }
.quote footer .mono { font-size: 0.6rem; }

/* ---------- FAQ ---------- */
.faq-list { display: grid; border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: 24px 4px;
  font-family: var(--font-display); font-stretch: 106%; font-weight: 600; font-size: 1.05rem;
  transition: color 0.25s;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: #ffffff; }
.faq-list summary i { position: relative; width: 14px; height: 14px; flex: none; }
.faq-list summary i::before, .faq-list summary i::after {
  content: ""; position: absolute; background: var(--muted);
  transition: transform 0.35s var(--ease);
}
.faq-list summary i::before { left: 0; right: 0; top: 6px; height: 2px; }
.faq-list summary i::after { top: 0; bottom: 0; left: 6px; width: 2px; }
.faq-list details[open] summary i::after { transform: scaleY(0); }
.faq-list details p { color: var(--muted); padding: 0 4px 26px; max-width: 64ch; }

/* ---------- Reserve ---------- */
.tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 70px; }
.tier {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  background: var(--surface);
  display: grid; gap: 18px; align-content: start;
  transition: border-color 0.3s, transform 0.45s var(--ease), box-shadow 0.45s;
}
.tier:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.tier.featured {
  border-color: rgba(220, 226, 235, 0.35);
  background:
    radial-gradient(ellipse 90% 60% at 50% 0%, rgba(190, 205, 225, 0.08), transparent 70%),
    var(--surface);
  box-shadow: 0 30px 80px -40px rgba(150, 170, 200, 0.35);
}
.tier-tag { font-size: 0.6rem; }
.tier.featured .tier-tag { color: #dfe4eb; }
.price { display: flex; align-items: baseline; gap: 12px; }
.price s { color: var(--muted); font-size: 1rem; }
.price strong { font-family: var(--font-display); font-stretch: 112%; font-size: 2.4rem; font-weight: 780; }
.tier ul { list-style: none; display: grid; gap: 10px; color: var(--muted); font-size: 0.95rem; }
.tier ul li::before { content: "—"; color: var(--chrome-3); margin-right: 10px; }
.tier .btn { justify-content: center; }

.notify { max-width: 620px; display: grid; gap: 14px; }
.notify label { font-family: var(--font-display); font-stretch: 106%; font-weight: 600; }
.notify-row { display: flex; gap: 12px; }
.notify input {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 14px 22px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  min-width: 0;
}
.notify input::placeholder { color: var(--muted); }
.notify input:focus { border-color: #cfd4dc; outline: none; }
.notify-msg { min-height: 1.2em; font-size: 0.62rem; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 70px 0 34px; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 40px; margin-bottom: 60px; }
.footer-brand { display: grid; gap: 16px; align-content: start; }
.footer-brand > p:not(.mono) { color: var(--muted); font-size: 0.95rem; max-width: 34ch; }
.footer-brand .mono { font-size: 0.6rem; }
.footer-col { display: grid; gap: 14px; align-content: start; }
.footer-col a { color: var(--muted); font-size: 0.92rem; transition: color 0.25s; }
.footer-col a:hover { color: var(--ink); }
.footer-tag { font-family: var(--font-display); font-stretch: 118%; font-weight: 800; font-size: 1.7rem; line-height: 1.05; letter-spacing: 0.02em; }
.footer-base { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-top: 26px; border-top: 1px solid var(--line); }
.footer-base .mono { font-size: 0.58rem; }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-fig { width: min(340px, 80%); order: -1; margin-top: 10px; }
  .hero { padding-top: 110px; }
  .tech-grid { grid-template-columns: 1fr; }
  .show-grid, .steps, .mat-grid, .quote-grid, .tier-grid { grid-template-columns: 1fr 1fr; }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav-links { display: none; }
  .nav-cta .btn { display: none; }
  .burger { display: block; }
  .show-grid, .steps, .mat-grid, .quote-grid, .tier-grid, .case-grid { grid-template-columns: 1fr; }
  .engrave { grid-template-columns: 1fr; }
  .spec-row { grid-template-columns: 1fr; gap: 6px; padding: 18px 4px; }
  .tech-list li { grid-template-columns: 1fr; gap: 4px; }
  .notify-row { flex-direction: column; }
  .notify-row .btn { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 22px; }
  .scroll-hint { display: none; }
  .glow { display: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .tie-svg .draw { stroke-dashoffset: 0; }
  .tie-svg .fill-in, .tie-svg .clasp, .tie-svg .dims { opacity: 1; }
  .marquee-track { animation: none; }
  .loader { display: none; }
}