/* PrintPi landing page: the dashboard's palette (zinc with an emerald accent), dark first, light
   through the system preference. Motion lives in main.js and a few keyframes here; both respect
   prefers-reduced-motion. No build step. */

:root {
  --bg: #09090b;
  --bg-raised: #131316;
  --bg-card: #18181b;
  --border: #27272a;
  --border-strong: #3f3f46;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --text-faint: #71717a;
  --accent: #34d399;
  --accent-strong: #10b981;
  --accent-ink: #052e21;
  --hot: #f87171;
  --warm: #fbbf24;
  --glow: rgb(52 211 153 / 0.22);
  --shadow: 0 40px 100px -30px rgb(0 0 0 / 0.85);
  --grid-line: rgb(255 255 255 / 0.05);
  --layer: #34d399;
  --grad-a: #34d399;
  --grad-b: #5eead4;
  --grad-c: #a7f3d0;
  --font: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-display: 'Inter Tight', 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-raised: #fafafa;
    --bg-card: #ffffff;
    --border: #e4e4e7;
    --border-strong: #d4d4d8;
    --text: #18181b;
    --text-muted: #52525b;
    --text-faint: #71717a;
    --accent: #059669;
    --accent-strong: #059669;
    --accent-ink: #ffffff;
    --hot: #dc2626;
    --warm: #d97706;
    --glow: rgb(16 185 129 / 0.16);
    --shadow: 0 40px 100px -40px rgb(24 24 27 / 0.35);
    --grid-line: rgb(24 24 27 / 0.06);
    --layer: #10b981;
    --grad-a: #047857;
    --grad-b: #059669;
    --grad-c: #0d9488;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

h1, h2, h3 { margin: 0; font-family: var(--font-display); line-height: 1.05; letter-spacing: -0.03em; }

h1 { font-size: clamp(3rem, 8.5vw, 6rem); font-weight: 800; }

h2 { font-size: clamp(2rem, 4.6vw, 3.25rem); font-weight: 800; }

h2.huge { font-size: clamp(4rem, 14vw, 9rem); }

h3 { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.01em; }

p { margin: 0; }

.wrap {
  position: relative;
  width: min(100% - 2rem, 1120px);
  margin-inline: auto;
}

.wrap.wide { width: min(100% - 2rem, 1240px); }

.grad {
  background: linear-gradient(100deg, var(--grad-a) 0%, var(--grad-b) 55%, var(--grad-c) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.kicker {
  margin-bottom: 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.intro {
  max-width: 42rem;
  margin: 1.25rem auto 0;
  color: var(--text-muted);
  font-size: 1.15rem;
}

.section-head { text-align: center; }

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  transition: background 0.25s, border-color 0.25s;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}

.header-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
}

.brand img { border-radius: 9px; }

.brand.small { font-size: 1rem; }

.nav {
  display: flex;
  gap: 1.5rem;
  margin-left: auto;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.nav a:hover { color: var(--text); }

@media (max-width: 700px) {
  .nav { display: none; }
  .header-row .button.small { margin-left: auto; }
}

/* Buttons */

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-card);
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.button:hover { transform: translateY(-1px); border-color: var(--text-faint); }

.button.small { padding: 0.5rem 1rem; font-size: 0.9rem; }

.button.big { padding: 1rem 2rem; font-size: 1.1rem; }

.button.primary {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: var(--accent-ink);
  box-shadow: 0 10px 40px -10px var(--glow);
}

.button.primary:hover { box-shadow: 0 14px 50px -10px var(--glow); }

.button.ghost { background: transparent; }

.button .arrow { transition: transform 0.15s; }

.button:hover .arrow { transform: translateX(3px); }

/* Hero */

.hero {
  position: relative;
  padding: 4rem 0 2rem;
  overflow: hidden;
}

.glow {
  position: absolute;
  left: 50%;
  top: -220px;
  width: 1100px;
  height: 700px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, var(--glow), transparent 62%);
  pointer-events: none;
}

.glow.bottom { top: auto; bottom: -350px; }

.bed-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black 20%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding-top: 2rem;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.9rem 0.35rem 0.7rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-card) 70%, transparent);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--glow);
  animation: pulse 2.4s ease-out infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); }
  70% { box-shadow: 0 0 0 10px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.lead {
  max-width: 34rem;
  margin-top: 1.5rem;
  font-size: 1.2rem;
  color: var(--text-muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.25rem;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.92rem;
  color: var(--text-faint);
}

.facts li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: 2px;
}

/* The animated printer */

.hero-visual { display: flex; justify-content: center; }

.stage {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 420 / 320;
}

.printer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 30px 60px rgb(0 0 0 / 0.5));
}

/* A segment of a layer grows out behind the nozzle while the head crosses it. */
.layer {
  fill: var(--layer);
  opacity: 0;
  transform-box: fill-box;
  transform-origin: left center;
  transform: scaleX(0);
}

.layer.on {
  opacity: 1;
  transform: scaleX(1);
  transition: transform var(--sweep, 0.4s) linear, opacity 0.1s;
}

.head {
  transition: transform var(--sweep, 0.4s) linear;
  will-change: transform;
}

.head.jump { transition-duration: var(--jump, 0.26s); transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

.float {
  position: absolute;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg-card) 88%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  animation: bob 6s ease-in-out infinite;
}

.card-progress {
  right: -6%;
  top: 4%;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 1.1rem 0.9rem 0.9rem;
  animation-delay: -1.5s;
}

.chip-temp {
  left: -8%;
  top: 22%;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  animation-delay: -3s;
}

.chip-dot { width: 8px; height: 8px; border-radius: 50%; }

.chip-dot.hot { background: var(--hot); }

.chip-dot.warm { background: var(--warm); }

.chip-sep { width: 1px; height: 14px; margin: 0 0.25rem; background: var(--border-strong); }

.toast {
  right: 0;
  bottom: -2%;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 1.1rem 0.8rem 0.9rem;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s, transform 0.4s;
  animation: none;
}

.toast.show { opacity: 1; transform: none; }

.toast-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  color: var(--accent);
  font-weight: 700;
}

.toast-title, .card-title { font-weight: 600; font-size: 0.95rem; }

.toast-sub, .card-sub { font-size: 0.82rem; color: var(--text-muted); }

.card-big {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.card-big .unit { margin-left: 2px; font-size: 1rem; font-weight: 600; color: var(--text-muted); }

.card-sub { font-variant-numeric: tabular-nums; }

.ring { transform: rotate(-90deg); }

.ring-track { fill: none; stroke: var(--border-strong); stroke-width: 6; }

.ring-value {
  fill: none;
  stroke: var(--accent);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 169.6;
  stroke-dashoffset: 169.6;
  transition: stroke-dashoffset 0.4s ease;
}

@keyframes bob {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -8px; }
}

@media (max-width: 900px) {
  .stage { max-width: 360px; margin-top: 1.5rem; }
  .card-progress { right: 0; top: 0; transform: scale(0.85); transform-origin: top right; }
  .chip-temp { left: 0; top: auto; bottom: 6%; transform: scale(0.85); transform-origin: bottom left; }
  .toast { right: 0; bottom: 0; transform: scale(0.85); transform-origin: bottom right; }
  .toast.show { transform: scale(0.85); }
}

/* The dashboard shot, tilted until it scrolls into view */

.hero-shot {
  margin: 3.5rem 0 0;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: var(--shadow), 0 0 0 1px rgb(255 255 255 / 0.03) inset;
  transform: perspective(1400px) rotateX(14deg) scale(0.96);
  transform-origin: 50% 0;
  transition: transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.hero-shot.flat { transform: perspective(1400px) rotateX(0) scale(1); }

.hero-shot img { width: 100%; }

/* Marquee */

.marquee {
  margin: 4rem 0 0;
  padding: 1.1rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: slide 45s linear infinite;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.track span::before {
  content: '·';
  margin-right: 3rem;
  color: var(--accent);
}

@keyframes slide {
  to { transform: translateX(-50%); }
}

/* Scenes */

.scenes { padding: 6rem 0 2rem; }

.scene {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 3.5rem;
  margin-bottom: 7rem;
}

.scene.flip .scene-copy { order: 2; }

.scene-copy p:not(.kicker) { margin-top: 1.25rem; color: var(--text-muted); font-size: 1.1rem; max-width: 30rem; }

@media (max-width: 900px) {
  .scene { grid-template-columns: 1fr; gap: 2rem; margin-bottom: 5rem; }
  .scene.flip .scene-copy { order: 0; }
}

.window {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: var(--shadow);
}

.window img { width: 100%; }

.window.tilt {
  transform: perspective(1200px) rotateY(-6deg);
  transition: transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.scene.flip .window.tilt { transform: perspective(1200px) rotateY(6deg); }

.scene.in .window.tilt { transform: perspective(1200px) rotateY(0); }

/* Reveal on scroll */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.in { opacity: 1; transform: none; }

/* Panel */

.panel-section {
  padding: 6rem 0;
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.devices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3.5rem;
}

.device {
  margin: 0;
  padding: 14px;
  border-radius: 22px;
  background: #111114;
  border: 1px solid #2a2a30;
  box-shadow: var(--shadow), 0 0 0 1px rgb(255 255 255 / 0.04) inset;
}

.device img { border-radius: 10px; }

@media (max-width: 800px) {
  .devices { grid-template-columns: 1fr; }
}

/* How it works */

.how { padding: 6rem 0; }

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 3.5rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 26px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong) 15%, var(--border-strong) 85%, transparent);
}

.timeline li { position: relative; padding-top: 0.5rem; }

.step-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 1.25rem;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  color: var(--accent);
  box-shadow: 0 0 0 8px var(--bg);
}

.timeline h3 { margin-bottom: 0.5rem; }

.timeline p { color: var(--text-muted); font-size: 1rem; max-width: 22rem; }

.code {
  display: inline-flex;
  align-items: center;
  margin-top: 1.25rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--bg-card);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.12em;
  color: var(--text);
}

.code .dash { margin: 0 0.15rem; color: var(--text-faint); }

.code .caret {
  width: 2px;
  height: 1.3em;
  margin-left: 0.3rem;
  background: var(--accent);
  animation: blink 1s steps(2, start) infinite;
}

@keyframes blink { to { visibility: hidden; } }

@media (max-width: 800px) {
  .timeline { grid-template-columns: 1fr; gap: 2.5rem; }
  .timeline::before { display: none; }
  .step-icon { box-shadow: none; }
}

/* Closing */

.closing {
  position: relative;
  padding: 8rem 0 9rem;
  text-align: center;
  overflow: hidden;
  border-top: 1px solid var(--border);
}

.closing .button { margin-top: 2.5rem; }

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
  font-size: 0.9rem;
  color: var(--text-faint);
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

/* Less motion */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .pill .dot, .float, .track, .code .caret { animation: none; }
  .reveal, .hero-shot, .window.tilt, .layer, .head, .toast { transition: none; }
  .reveal { opacity: 1; transform: none; }
  .hero-shot, .window.tilt, .scene.flip .window.tilt { transform: none; }
}