:root {
  --bg: #FBFBF9;
  --panel: #ffffff;
  --ink: #1B1A17;
  --muted: #75736C;
  --faint: #A9A79F;
  --border: #ECEAE3;
  --border-strong: #DEDCD4;
  --field-bg: #FAFAF8;
  --field-border: #E2E0D8;
  --accent: #2E5BFF;
  --accent-soft: #EEF1FF;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

input[type=range] { accent-color: var(--accent); }
::placeholder { color: var(--faint); }

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
}
.wordmark {
  display: flex;
  align-items: baseline;
  gap: 3px;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -0.02em;
}
.wordmark .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  margin-left: 2px;
}

/* Layout */
.layout {
  flex: 1;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 28px 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: flex-start;
}
.preview-col {
  flex: 1 1 480px;
  min-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.controls-col {
  flex: 1 1 320px;
  min-width: 300px;
  max-width: 380px;
  width: 100%;
  position: sticky;
  top: 24px;
}

/* Intro */
.intro h1 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 38px;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 8px;
}
.intro p {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--muted);
  max-width: 52ch;
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-strong);
  background: var(--panel);
  border-radius: 16px;
  padding: 48px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  min-height: 300px;
  transition: all .15s ease;
}
.dropzone.is-drag {
  border-color: var(--accent);
  background: #F3F5FF;
}
.dz-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.dz-icon-inner {
  width: 18px; height: 14px;
  border: 2px solid var(--accent);
  border-radius: 4px;
  position: relative;
}
.dz-dot {
  position: absolute; right: 2px; top: 1px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.dz-fold {
  position: absolute; left: -2px; bottom: -2px;
  width: 14px; height: 8px;
  background: var(--accent-soft);
  border-bottom: 2px solid var(--accent);
  transform: skewX(-20deg);
  transform-origin: bottom left;
}
.dz-title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 600;
  font-size: 19px;
  margin-bottom: 5px;
}
.dz-sub { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.dz-formats {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--faint);
  letter-spacing: 0.04em;
}
.dz-sample {
  margin-top: 22px;
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 13px; font-weight: 600;
  color: var(--accent);
  background: transparent; border: none;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Image card */
.image-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}
.image-card-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.file-meta { display: flex; align-items: center; gap: 9px; min-width: 0; }
.file-pill {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: #4B4A45;
  background: #F4F3EF;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}
.file-dims { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--faint); }
.canvas-frame {
  background: repeating-conic-gradient(#F1F0EC 0% 25%, #FAFAF8 0% 50%) 50% / 22px 22px;
  border-radius: 10px;
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
}
#canvas {
  display: block;
  max-width: 100%;
  max-height: 56vh;
  width: auto;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 6px 24px rgba(20,20,24,0.14);
}

/* Panel */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.panel-body {
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.field { display: flex; flex-direction: column; gap: 9px; }
.field-head { display: flex; align-items: baseline; justify-content: space-between; }
.field-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.field-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--accent);
}

.text-input, .select {
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 15px;
  color: var(--ink);
  background: var(--field-bg);
  border: 1px solid var(--field-border);
  border-radius: 9px;
  padding: 11px 13px;
  outline: none;
}
.select { font-size: 14px; padding: 10px 12px; cursor: pointer; }
.text-input:focus, .select:focus { border-color: var(--accent); }

/* Swatches */
.swatches { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.swatch {
  width: 30px; height: 30px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 0;
}
.swatch.is-light { border: 1px solid var(--border-strong); }
.swatch.is-selected { box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--accent); }
.swatch-custom {
  width: 30px; height: 30px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: conic-gradient(from 90deg, #ff3b30, #ffd400, #1f9d55, #2E5BFF, #b14cff, #ff3b30);
}
.swatch-custom input[type=color] {
  position: absolute; inset: -6px;
  width: 200%; height: 200%;
  border: none; padding: 0;
  cursor: pointer;
  opacity: 0;
}

/* Segmented */
.segmented {
  display: flex;
  background: #F4F3EF;
  border: 1px solid var(--field-border);
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}
.seg {
  flex: 1;
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 0;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  background: transparent;
  color: #8A887F;
  transition: all .12s ease;
}
.seg.is-active {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(20,20,24,0.10);
}

/* Footer of panel */
.panel-footer {
  border-top: 1px solid var(--border);
  padding: 16px 20px;
  background: #FCFCFB;
}
.btn-primary {
  width: 100%;
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 600;
  padding: 13px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: opacity .12s ease;
}
.btn-primary:hover { opacity: 0.92; }
.btn-primary:disabled {
  background: #E8E6DF;
  color: var(--faint);
  cursor: not-allowed;
}
.btn-secondary {
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 7px 13px;
  cursor: pointer;
}

/* Site footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-note {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.03em;
}
.footer-note a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--border-strong);
}