/* ============================================================
   CALIBRE — concept demo (Swenson Digital portfolio piece)
   Mechanical watchmaker. Warm graphite / bone / brass. Restrained,
   engineered, no neon, no glassmorphism, no rounded-everything.
   ============================================================ */

:root {
  --bg: #0e0d0c;
  --bg-alt: #171513;
  --surface: #1e1b18;
  --paper: #f6f2ec;
  --paper-alt: #efe9df;

  --ink: #f3efe8;
  --ink-soft: #a89f92;
  --ink-dark: #1c1a17;
  --ink-dark-soft: #6b6459;

  --brass: #b8865a;
  --brass-bright: #d9a56e;
  --line: rgba(243, 239, 232, 0.12);
  --line-on-paper: rgba(28, 26, 23, 0.12);

  --font-display: "Bodoni Moda", "Didot", "Georgia", serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;

  --radius: 3px;
  --wrap: 1240px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--brass-bright); color: var(--bg);
  padding: 0.75rem 1.25rem; font-weight: 700; z-index: 300;
}
.skip-link:focus { left: 1rem; top: 1rem; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.08;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h2 { font-size: clamp(2rem, 4.2vw, 3.1rem); font-weight: 450; }
h3 { font-size: 1.5rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }
section.on-paper p { color: var(--ink-dark-soft); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--font-body); font-weight: 700; font-size: 0.72rem;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--brass-bright);
  margin-bottom: 1.1em;
}
section.on-paper .eyebrow { color: var(--brass); }
.eyebrow::before { content: ""; width: 1.4em; height: 1px; background: currentColor; }

.section-sub { color: var(--ink-soft); max-width: 46ch; font-size: 1.08rem; }
section.on-paper .section-sub { color: var(--ink-dark-soft); }

section { position: relative; padding: clamp(4.5rem, 10vw, 8rem) 0; }
section.on-paper { background: var(--paper); color: var(--ink-dark); }

/* ============ GRAIN ============ */
.grain {
  position: fixed; inset: 0; z-index: 250; pointer-events: none;
  opacity: 0.035; mix-blend-mode: overlay;
}

.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0%;
  background: var(--brass-bright); z-index: 260; transition: width 0.08s linear;
}

/* ============ HEADER ============ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  padding: 1.4rem 0;
  transition: background 0.35s ease, padding 0.35s ease, border-color 0.35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(14, 13, 12, 0.88);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  border-bottom-color: var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.logo {
  display: flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-display); font-size: 1.3rem; letter-spacing: 0.04em;
  text-decoration: none; color: var(--ink);
}
.logo-mark { color: var(--brass-bright); }

.primary-nav { display: flex; align-items: center; gap: clamp(1.4rem, 2.6vw, 2.4rem); }
.primary-nav a {
  text-decoration: none; font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.04em; color: var(--ink-soft); transition: color 0.2s ease;
}
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--ink); }
.primary-nav .nav-cta {
  color: var(--bg); background: var(--brass-bright);
  padding: 0.6rem 1.2rem; border-radius: var(--radius); font-weight: 700;
}
.primary-nav .nav-cta:hover { background: var(--ink); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; gap: 0.55em;
  padding: 0.95rem 1.8rem; border-radius: var(--radius);
  font-weight: 700; font-size: 0.88rem; letter-spacing: 0.03em;
  text-decoration: none; border: 1px solid transparent;
  transition: transform 0.3s var(--ease-out), background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-primary { background: var(--brass-bright); color: var(--bg); }
.btn-primary:hover { background: var(--ink); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }
section.on-paper .btn-ghost { color: var(--ink-dark); border-color: var(--line-on-paper); }
section.on-paper .btn-ghost:hover { border-color: var(--ink-dark); }
.btn-magnetic { position: relative; }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-canvas-wrap {
  position: absolute; inset: 0; z-index: 0;
}
.hero-canvas-wrap canvas { width: 100%; height: 100%; display: block; }
.hero-fallback-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 60% 35%, rgba(217,165,110,0.16), transparent 65%),
    radial-gradient(ellipse 70% 60% at 30% 70%, rgba(184,134,90,0.10), transparent 70%),
    var(--bg);
  display: none;
}
.no-webgl .hero-fallback-bg, .reduced-motion-fallback .hero-fallback-bg { display: block; }
.no-webgl .hero-canvas-wrap { display: none; }

.hero-vignette {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse at 38% 45%, transparent 25%, var(--bg) 88%);
}
.hero-inner { position: relative; z-index: 2; padding-top: 5rem; }
.hero-copy { max-width: 640px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-size: 0.74rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-soft); border: 1px solid var(--line); border-radius: 999px;
  padding: 0.5em 1.15em; margin-bottom: 1.8rem;
}
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brass-bright); box-shadow: 0 0 8px var(--brass-bright); }
.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  margin-bottom: 0.5em;
}
.hero h1 em { font-style: italic; color: var(--brass-bright); }
.hero-sub { max-width: 46ch; font-size: clamp(1.05rem, 1.5vw, 1.2rem); margin-bottom: 2.4rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.hero-specs {
  display: flex; flex-wrap: wrap; gap: 2.2rem;
  margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--line);
}
.hero-spec strong { display: block; font-family: var(--font-display); font-size: 1.5rem; color: var(--ink); font-weight: 500; }
.hero-spec span { font-size: 0.78rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.05em; }

.hero-scroll-cue {
  position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%); z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  color: var(--ink-soft); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase;
}
.hero-scroll-cue .cue-line { width: 1px; height: 30px; background: linear-gradient(to bottom, var(--brass-bright), transparent); animation: cue-pulse 2s ease-in-out infinite; }
@keyframes cue-pulse { 0%,100% { opacity: 0.25; } 50% { opacity: 1; } }

/* ============ MANIFESTO ============ */
.manifesto { text-align: left; }
.manifesto blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  font-weight: 450;
  font-style: italic;
  line-height: 1.3;
  max-width: 20ch;
  margin: 0;
  color: var(--ink-dark);
}
.manifesto blockquote em { color: var(--brass); font-style: italic; }
.manifesto-grid {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
.manifesto-support { padding-top: 0.5rem; }
.manifesto-support p:last-child { margin-bottom: 0; }
@media (max-width: 820px) { .manifesto-grid { grid-template-columns: 1fr; } }

/* ============ MOVEMENT / EXPLODED DIAGRAM ============ */
.movement-layout {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.movement-diagram {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 520px;
}
.movement-diagram svg { width: 100%; height: 100%; overflow: visible; }
.diagram-part {
  opacity: 0;
  transform: scale(0.85);
  transform-origin: 250px 250px;
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.movement-diagram.is-visible .diagram-part { opacity: 1; transform: scale(1); }
.movement-diagram.is-visible .diagram-part.ring-1 { transition-delay: 0.05s; }
.movement-diagram.is-visible .diagram-part.ring-2 { transition-delay: 0.15s; }
.movement-diagram.is-visible .diagram-part.ring-3 { transition-delay: 0.25s; }
.movement-diagram.is-visible .diagram-part.jewels { transition-delay: 0.4s; }
.movement-diagram.is-visible .diagram-part.hands { transition-delay: 0.55s; }

.diagram-callout {
  opacity: 0; transform: translateY(10px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.movement-diagram.is-visible .diagram-callout { opacity: 1; transform: translateY(0); }
.movement-diagram.is-visible .diagram-callout:nth-of-type(1) { transition-delay: 0.7s; }
.movement-diagram.is-visible .diagram-callout:nth-of-type(2) { transition-delay: 0.82s; }
.movement-diagram.is-visible .diagram-callout:nth-of-type(3) { transition-delay: 0.94s; }
.movement-diagram.is-visible .diagram-callout:nth-of-type(4) { transition-delay: 1.06s; }

.callout-label {
  font-family: var(--font-body); font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase; fill: var(--ink);
}
.callout-desc { font-size: 0.62rem; fill: var(--ink-soft); }
.callout-line { stroke: var(--line); stroke-width: 1; }

.movement-copy ul {
  list-style: none; margin: 1.6rem 0 2rem; padding: 0; display: grid; gap: 1.1rem;
}
.movement-copy li { display: flex; gap: 0.9em; }
.movement-copy li strong { color: var(--ink); display: block; margin-bottom: 0.15em; }
.movement-copy li .num {
  font-family: var(--font-display); font-style: italic; color: var(--brass-bright);
  font-size: 1.1rem; flex-shrink: 0; width: 1.6em;
}
@media (max-width: 820px) { .movement-layout { grid-template-columns: 1fr; } }

/* ============ COLLECTION ============ */
.collection-list { display: grid; gap: clamp(3rem, 8vw, 5rem); margin-top: 3rem; }
.collection-item {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}
.collection-item:nth-child(even) { direction: rtl; }
.collection-item:nth-child(even) > * { direction: ltr; }
.watch-portrait {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, var(--bg-alt), var(--surface));
  border: 1px solid var(--line);
}
.watch-portrait svg { width: 62%; }
.collection-eyebrow { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dark-soft); margin-bottom: 0.6em; }
.collection-item h3 { color: var(--ink-dark); font-size: clamp(1.6rem, 3vw, 2.1rem); }
.collection-specs { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin: 1.4rem 0; padding: 1.2rem 0; border-top: 1px solid var(--line-on-paper); border-bottom: 1px solid var(--line-on-paper); }
.collection-specs div span { display: block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-dark-soft); }
.collection-specs div strong { font-family: var(--font-display); font-weight: 500; color: var(--ink-dark); font-size: 1.05rem; }
@media (max-width: 760px) {
  .collection-item, .collection-item:nth-child(even) { grid-template-columns: 1fr; direction: ltr; }
}

/* ============ CRAFT PROCESS ============ */
.craft-list { counter-reset: craft; margin-top: 3rem; border-top: 1px solid var(--line); }
.craft-row {
  display: grid; grid-template-columns: 90px 1fr; gap: 1.5rem;
  padding: 2rem 0; border-bottom: 1px solid var(--line);
}
.craft-num { font-family: var(--font-display); font-style: italic; font-size: 2.2rem; color: var(--brass-bright); line-height: 1; }
.craft-row h3 { margin-bottom: 0.4rem; font-size: 1.3rem; }
.craft-row p { margin-bottom: 0; max-width: 62ch; }
@media (max-width: 640px) { .craft-row { grid-template-columns: 56px 1fr; } .craft-num { font-size: 1.6rem; } }

/* ============ DIFFERENTIATORS ============ */
.diff-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem 3rem; margin-top: 3rem; }
.diff-item h3 { font-size: 1.15rem; margin-bottom: 0.4rem; color: var(--ink); display: flex; align-items: baseline; gap: 0.5em; }
.diff-item h3::before { content: "—"; color: var(--brass-bright); }
.diff-item p { margin-bottom: 0; }
@media (max-width: 700px) { .diff-grid { grid-template-columns: 1fr; } }

/* ============ STATS ============ */
.stats-band { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.stat-num { font-family: var(--font-display); font-size: clamp(2rem, 4.6vw, 2.9rem); color: var(--ink); display: block; font-weight: 500; }
.stat-label { font-size: 0.76rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; }
@media (max-width: 780px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2.2rem 1.5rem; } }

/* ============ ABOUT ============ */
.about-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.about-layout h2 { max-width: 12ch; }
@media (max-width: 820px) { .about-layout { grid-template-columns: 1fr; } }

/* ============ CTA ============ */
.cta-band { text-align: center; }
.cta-band h2 { font-size: clamp(2.2rem, 6vw, 3.6rem); max-width: 18ch; margin-left: auto; margin-right: auto; }
.cta-band .section-sub { margin: 0 auto 2.2rem; }

.reserve-form { display: flex; gap: 0.75rem; max-width: 480px; margin: 0 auto; flex-wrap: wrap; justify-content: center; }
.reserve-form input {
  flex: 1 1 240px; padding: 0.95rem 1.2rem; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); font-family: inherit; font-size: 0.95rem;
}
.reserve-form input:focus { outline: none; border-color: var(--brass-bright); }
.placeholder-tag {
  display: inline-block; font-size: 0.66rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; background: rgba(217,165,110,0.16); color: var(--brass-bright);
  padding: 0.2em 0.55em; border-radius: 4px; margin-left: 0.5em; vertical-align: middle;
}

/* ============ FOOTER ============ */
.site-footer { border-top: 1px solid var(--line); padding: 3.5rem 0 2rem; background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--line); }
.footer-tagline { max-width: 32ch; }
.footer-links { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { text-decoration: none; color: var(--ink-soft); font-size: 0.92rem; }
.footer-links a:hover { color: var(--brass-bright); }
.footer-heading { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink); margin-bottom: 1rem; }
.footer-bottom-row { padding-top: 1.5rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: 0.82rem; color: var(--ink-soft); }
.demo-disclosure { margin-top: 1.2rem; padding: 1rem 1.2rem; border: 1px dashed var(--line); border-radius: var(--radius); font-size: 0.84rem; color: var(--ink-soft); max-width: 62ch; }
.demo-disclosure strong { color: var(--ink); }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; } }

/* ============ SCROLL REVEAL ============ */
.js-motion .manifesto-support > *,
.js-motion .movement-copy > *,
.js-motion .collection-item,
.js-motion .craft-row,
.js-motion .diff-item,
.js-motion .stat-item,
.js-motion .about-layout > * {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.js-motion .manifesto-support > *.is-visible,
.js-motion .movement-copy > *.is-visible,
.js-motion .collection-item.is-visible,
.js-motion .craft-row.is-visible,
.js-motion .diff-item.is-visible,
.js-motion .stat-item.is-visible,
.js-motion .about-layout > *.is-visible {
  opacity: 1; transform: translateY(0);
}
.js-motion .manifesto blockquote {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.js-motion .manifesto blockquote.is-visible { opacity: 1; transform: translateY(0); }

.js-motion .hero-tag, .js-motion .hero h1, .js-motion .hero-sub, .js-motion .hero-actions, .js-motion .hero-specs, .js-motion .hero-scroll-cue {
  opacity: 0; transform: translateY(16px);
  animation: fade-up 0.8s var(--ease-out) forwards;
}
.js-motion .hero-tag { animation-delay: 0.1s; }
.js-motion .hero h1 { animation-delay: 0.22s; }
.js-motion .hero-sub { animation-delay: 0.42s; }
.js-motion .hero-actions { animation-delay: 0.56s; }
.js-motion .hero-specs { animation-delay: 0.7s; }
.js-motion .hero-scroll-cue { animation-delay: 1.1s; }
@keyframes fade-up { to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .js-motion .manifesto-support > *, .js-motion .movement-copy > *, .js-motion .collection-item,
  .js-motion .craft-row, .js-motion .diff-item, .js-motion .stat-item, .js-motion .about-layout > *,
  .js-motion .manifesto blockquote, .js-motion .hero-tag, .js-motion .hero h1, .js-motion .hero-sub,
  .js-motion .hero-actions, .js-motion .hero-specs, .js-motion .hero-scroll-cue,
  .diagram-part, .diagram-callout {
    opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important;
  }
  .scroll-progress, .hero-scroll-cue .cue-line { display: none; }
}

/* ============ MOBILE NAV ============ */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 38px; height: 38px; background: transparent; border: 1px solid var(--line);
  border-radius: var(--radius); cursor: pointer;
  /* The open .primary-nav panel is position:fixed and covers the header
     area too, so without this it paints over the toggle button (later in
     DOM order) and the button becomes unclickable to close the menu. */
  position: relative;
  z-index: 210;
}
.nav-toggle span { display: block; width: 16px; height: 1.5px; margin: 0 auto; background: var(--ink); transition: transform 0.25s ease, opacity 0.25s ease; }

@media (max-width: 780px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: fixed; top: 0; right: 0; height: 100vh; width: min(78vw, 320px);
    background: var(--bg-alt); border-left: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; justify-content: center; gap: 1.8rem;
    padding: 2rem; transform: translateX(100%); transition: transform 0.35s var(--ease-out);
  }
  .site-header.nav-open .primary-nav { transform: translateX(0); }
  .primary-nav a { font-size: 1.1rem; }
  .site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .site-header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .site-header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
}