/* PIXO — shared design system
   Darkroom / contact-sheet aesthetic.
   Colors:
     --bg        #1B1A17  warm dark charcoal (darkroom wall)
     --surface   #242220  card / panel surface
     --surface-2 #2C2A26  raised surface (inputs, hover)
     --line      #3A372F  hairline sprocket / divider color
     --amber     #E8A33D  safelight accent (primary)
     --amber-dim #B77E2C  amber pressed/hover
     --teal      #4FD1C5  editor accent (secondary, cool light-table)
     --text      #F3EFE7  primary text (paper white)
     --muted     #9C978C  secondary text
   Type:
     display: 'Space Grotesk' — headers, technical/geometric
     body:    'Inter' — paragraphs, UI labels
     mono:    'JetBrains Mono' — format codes, file data, dropdown values
*/

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #1B1A17;
  --surface: #242220;
  --surface-2: #2C2A26;
  --line: #3A372F;
  --amber: #E8A33D;
  --amber-dim: #B77E2C;
  --teal: #4FD1C5;
  --text: #F3EFE7;
  --muted: #9C978C;
  --radius: 6px;
  --sprocket: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

h1, h2, h3, .display {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

code, .mono, select, .mono-label { font-family: 'JetBrains Mono', monospace; }

a { color: inherit; }

button {
  font-family: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* ---------- Sprocket strip — the signature motif ---------- */
/* A repeating row of holes, like the edge of a film strip.
   Used as a structural divider between header/nav/sections. */
.sprocket-strip {
  height: var(--sprocket);
  background-image: radial-gradient(circle, var(--line) 2px, transparent 2.4px);
  background-size: 22px var(--sprocket);
  background-position: 10px center;
  background-repeat: repeat-x;
  opacity: 0.9;
}

/* ---------- Layout shell ---------- */
.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

header.top {
  padding-top: 22px;
  padding-bottom: 18px;
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
}

.brand .mark {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 22px;
  color: var(--amber);
}

.brand .tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

nav.primary {
  display: flex;
  gap: 4px;
}

nav.primary a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: var(--radius);
}

nav.primary a:hover { color: var(--text); background: var(--surface); }
nav.primary a.active { color: var(--bg); background: var(--amber); }

/* ---------- Hero ---------- */
.hero {
  padding: 56px 0 40px;
}

.hero .eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: block;
}

.hero h1 {
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.05;
  max-width: 15ch;
}

.hero p.lede {
  margin-top: 18px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
}

.hero .privacy-note {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--teal);
  border: 1px solid rgba(79, 209, 197, 0.3);
  background: rgba(79, 209, 197, 0.06);
  padding: 8px 12px;
  border-radius: var(--radius);
}

/* ---------- Tool cards on landing ---------- */
.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 36px 0 64px;
}

@media (min-width: 720px) {
  .tool-grid { grid-template-columns: 1fr 1fr; }
}

.tool-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.tool-card:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
}

.tool-card .index {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
}

.tool-card h2 { font-size: 22px; }

.tool-card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
}

.tool-card .go {
  margin-top: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--amber);
}

/* ---------- Generic panel / card ---------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.panel h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

/* ---------- Form elements ---------- */
label.field-label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
  font-family: 'JetBrains Mono', monospace;
}

select, input[type="text"], input[type="number"] {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 11px 12px;
  border-radius: var(--radius);
  font-size: 14px;
}

select:disabled { opacity: 0.4; }

input[type="range"] {
  width: 100%;
  accent-color: var(--amber);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  min-height: 44px;
}

.btn-primary { background: var(--amber); color: #1B1A17; }
.btn-primary:hover { background: var(--amber-dim); }
.btn-primary:disabled { background: var(--surface-2); color: var(--muted); cursor: not-allowed; }

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--amber); }

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  background: var(--surface-2);
  border-color: var(--line);
  color: var(--text);
  border-radius: var(--radius);
}
.btn-icon:hover { border-color: var(--teal); }
.btn-icon.active { border-color: var(--teal); color: var(--teal); }

/* ---------- Dropzone ---------- */
.dropzone {
  border: 1.5px dashed var(--line);
  border-radius: var(--radius);
  padding: 34px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone.drag { border-color: var(--amber); background: rgba(232, 163, 61, 0.05); }

.dropzone .big { font-size: 15px; font-weight: 500; }
.dropzone .small { font-size: 12px; color: var(--muted); margin-top: 6px; font-family: 'JetBrains Mono', monospace; }

/* ---------- Footer ---------- */
footer {
  padding: 30px 0 46px;
  color: var(--muted);
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.reduce-motion, * { transition-duration: 0.15s; }
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}