/* HexShift Color — Occam light desktop UI */
:root {
  --bg: #ffffff;
  --bg-soft: #F1F7FE;
  --bg-card: #f5f7fa;
  --surface: #ffffff;
  --text: #0B1D32;
  --text-strong: #000000;
  --muted: #4E4E4E;
  --faint: #8a8f98;
  --border: #e6e8ec;
  --accent: #000000;
  --accent-fg: #ffffff;
  --accent-hover: #222222;
  --focus: #1a5fb4;
  --ok: #0d7a4f;
  --radius: 14px;
  --shadow: 0 8px 28px rgba(11, 29, 50, 0.06);
  --max-w: 1280px;
  --pad-x: clamp(1.25rem, 4vw, 2.5rem);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-family: var(--font);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100%;
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--focus); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--text-strong); }

.promo {
  background: #0B1D32;
  color: #e8eef6;
  font-size: 0.9rem;
  font-weight: 550;
  text-align: center;
  padding: 0.55rem var(--pad-x);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  justify-content: center;
}
.promo button.promo-cta {
  appearance: none;
  border: 0;
  cursor: pointer;
  background: #fff;
  color: #0B1D32;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
}
.promo button.promo-cta:hover { background: #F1F7FE; }

.wrap {
  max-width: min(var(--max-w), 96vw);
  margin: 0 auto;
  padding: 12px var(--pad-x) 28px;
}

header.appbar {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  flex-wrap: wrap;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; gap: 14px; align-items: center; }
.logo {
  width: 14px; height: 14px; border-radius: 3px;
  background: var(--accent); flex-shrink: 0;
}
.brand h1 {
  font-size: 1.05rem; font-weight: 650; margin: 0;
  letter-spacing: -0.02em; color: var(--text-strong);
}
nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 1rem; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--text-strong); text-decoration: underline; }

.hero { margin: 0 0 14px; }
.hero .display {
  margin: 0 0 4px;
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-strong);
  max-width: 48ch;
}
.hero p { margin: 0; font-size: 0.95rem; color: var(--muted); max-width: 62em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 10px; }

button.primary, a.primary {
  appearance: none; border: 0; cursor: pointer;
  background: var(--accent); color: var(--accent-fg);
  font: inherit; font-weight: 650; font-size: 1rem;
  padding: 10px 16px; border-radius: 10px; text-decoration: none;
  display: inline-flex; align-items: center;
}
button.primary:hover, a.primary:hover { background: var(--accent-hover); }
button.secondary, a.secondary {
  appearance: none; border: 1px solid var(--border); cursor: pointer;
  background: var(--surface); color: var(--text);
  font: inherit; font-weight: 550; font-size: 0.95rem;
  padding: 10px 14px; border-radius: 10px; text-decoration: none;
  display: inline-flex; align-items: center;
}
button.secondary:hover, a.secondary:hover { background: var(--bg-soft); }
button.ghost {
  appearance: none; border: 1px dashed var(--border); cursor: pointer;
  background: transparent; color: var(--muted);
  font: inherit; font-size: 0.9rem; padding: 8px 12px; border-radius: 8px;
}
button.ghost:hover { border-color: var(--faint); color: var(--text); }
button.copy-btn {
  appearance: none; border: 1px solid var(--border); cursor: pointer;
  background: var(--bg-card); color: var(--text);
  font: inherit; font-size: 0.85rem; font-weight: 600;
  padding: 4px 10px; border-radius: 8px;
}
button.copy-btn:hover { background: var(--bg-soft); }

.grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 14px;
  align-items: start;
}
@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.section-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 10px;
}
.section-label + .section-label, .fields .section-label { margin-top: 16px; }

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin: 10px 0 4px;
}
input[type="text"], input[type="color"] {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-strong);
}
input[type="color"] {
  height: 48px;
  padding: 4px;
  cursor: pointer;
}
input:focus { outline: 2px solid var(--focus); outline-offset: 1px; }

.swatch-big {
  width: 100%;
  height: 120px;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
}

.conv-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.conv-row .key {
  flex: 0 0 64px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--faint);
  letter-spacing: 0.03em;
}
.conv-row input { flex: 1; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92rem; }

.harmony-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px;
}
.swatch-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
}
.swatch-card .chip {
  height: 64px;
  border-bottom: 1px solid var(--border);
}
.swatch-card .meta {
  padding: 8px 10px;
  font-size: 0.8rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
}
.swatch-card .meta span { color: var(--text-strong); word-break: break-all; }

.soft-wall {
  position: relative;
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
}
.soft-wall .preview-blur {
  filter: blur(5px);
  opacity: 0.55;
  pointer-events: none;
  user-select: none;
  padding: 14px;
}
.soft-wall.unlocked .preview-blur {
  filter: none;
  opacity: 1;
  pointer-events: auto;
  user-select: text;
}
.soft-wall .gate {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(2px);
  padding: 20px;
  text-align: center;
}
.soft-wall.unlocked .gate { display: none; }
.soft-wall .gate p { margin: 0; color: var(--muted); max-width: 36ch; font-size: 0.95rem; }
.soft-wall .gate strong { color: var(--text-strong); }

.ramp-row {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}
.ramp-row .step {
  flex: 1;
  height: 48px;
  border-radius: 6px;
  border: 1px solid rgba(0,0,0,0.06);
}
pre.css-pack {
  margin: 0;
  padding: 12px;
  background: #0B1D32;
  color: #e8eef6;
  border-radius: 10px;
  font-size: 0.82rem;
  overflow: auto;
  max-height: 220px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #0B1D32;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 50;
}
.toast.show { opacity: 1; }

.faq {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.faq h2 {
  font-size: 1.25rem;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.faq details {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 8px;
  background: var(--surface);
}
.faq summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--text-strong);
}
.faq details p { margin: 8px 0 0; color: var(--muted); font-size: 0.95rem; }

footer.site-foot {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  justify-content: space-between;
}
footer.site-foot .credit { max-width: 52ch; }
.legal { max-width: 42rem; }
.legal h1 { font-size: 1.5rem; letter-spacing: -0.02em; }

.msg-banner {
  display: none;
  margin: 10px 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff8e6;
  border: 1px solid #f0d78c;
  color: #5c4a12;
  font-size: 0.92rem;
}
.msg-banner.show { display: block; }

/* PassCrop photo-tool extras */
.photo-grid {
  grid-template-columns: minmax(280px, 340px) 1fr;
}
.size-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 4px;
}
button.size-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 10px;
  padding: 10px 12px;
  text-align: left;
  cursor: pointer;
  font: inherit;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
button.size-btn strong {
  font-size: 0.95rem;
  color: var(--text-strong);
}
button.size-btn span {
  font-size: 0.8rem;
  color: var(--muted);
}
button.size-btn:hover { background: var(--bg-soft); }
button.size-btn.active {
  border-color: var(--text-strong);
  box-shadow: inset 0 0 0 1px var(--text-strong);
}
.hint {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: var(--faint);
}
.bg-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip-opt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 550;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
  margin: 0;
}
input[type="file"] {
  width: 100%;
  font: inherit;
  font-size: 0.9rem;
  padding: 8px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--surface);
}
input[type="range"] {
  width: 100%;
  margin: 4px 0 8px;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.preview-stage {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}
#preview {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  max-width: 100%;
  height: auto;
  box-shadow: var(--shadow);
}
#sheetPreview {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}