/* SeedHammer II phone webapp — liquid-glass surfaces, system-theme-aware. */

:root {
  color-scheme: light dark;
  --bg-gradient-from: #ffd9a8;
  --bg-gradient-to:   #c9c1ff;
  --surface:          rgba(255, 255, 255, 0.55);
  --surface-strong:   rgba(255, 255, 255, 0.72);
  --hairline:         color-mix(in srgb, currentColor 14%, transparent);
  --text:             oklch(20% 0 0);
  --text-dim:         oklch(40% 0 0);
  --accent:           #ff8800;
  --accent-text:      #ffffff;
  --error:            #c92a2a;
  --radius:           16px;
  --pad:              16px;
  --gap:              12px;
  --shadow:           0 8px 24px rgb(0 0 0 / 0.08);
  --blur:             backdrop-filter: blur(24px) saturate(180%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-gradient-from: #20153a;
    --bg-gradient-to:   #2b1a08;
    --surface:          rgba(20, 20, 20, 0.55);
    --surface-strong:   rgba(20, 20, 20, 0.72);
    --hairline:         color-mix(in srgb, currentColor 22%, transparent);
    --text:             oklch(96% 0 0);
    --text-dim:         oklch(70% 0 0);
    --shadow:           0 8px 24px rgb(0 0 0 / 0.5);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(ellipse 100% 60% at 0% 0%, var(--bg-gradient-from), transparent 60%),
    radial-gradient(ellipse 100% 60% at 100% 100%, var(--bg-gradient-to), transparent 60%),
    var(--surface-strong);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  font-size: 15px;
  line-height: 1.4;
}

.glass {
  background: var(--surface);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.bar {
  position: sticky;
  top: env(safe-area-inset-top, 0);
  margin: var(--pad);
  padding: 12px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  z-index: 10;
}

.bar h1 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.status {
  font-size: 13px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

main {
  padding: 0 var(--pad) var(--pad);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  max-width: 1100px;
  margin: 0 auto;
}

@media (min-width: 720px) {
  main {
    grid-template-columns: minmax(280px, 1fr) minmax(320px, 1.2fr);
    grid-template-areas:
      "tabs    tabs"
      "preview editor"
      "preview actions"
      "footer  footer";
  }
  .card.tabs-card     { grid-area: tabs;    }
  .card.preview-card  { grid-area: preview; align-self: start; }
  .card.editor-card   { grid-area: editor;  }
  .card.actions-card  { grid-area: actions; }
  .card.footer-card   { grid-area: footer;  }
}

.card { padding: var(--pad); }

.tabs {
  display: flex;
  gap: 4px;
  background: var(--hairline);
  padding: 4px;
  border-radius: calc(var(--radius) - 8px);
}
.tab {
  flex: 1;
  font: inherit;
  font-weight: 500;
  background: transparent;
  border: none;
  border-radius: calc(var(--radius) - 10px);
  padding: 8px 12px;
  color: var(--text-dim);
  cursor: pointer;
}
.tab.active {
  background: var(--surface-strong);
  color: var(--text);
  box-shadow: 0 1px 4px rgb(0 0 0 / 0.1);
}

.preview-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* The preview card visually represents the physical 85 mm × 85 mm plate:
   solid grey, proportional 3/85 corner radius matching the actual
   outerMargin. The SVG inside renders the same plate rect; the two layers
   align pixel-perfectly. */
.preview {
  aspect-ratio: 1 / 1;
  width: 100%;
  border-radius: calc(100% * 3 / 85);
  background: var(--plate-fill, #e8e8e8);
  border: 1px solid var(--plate-stroke, #b0b0b0);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
@media (prefers-color-scheme: dark) {
  .preview {
    background: var(--plate-fill, oklch(28% 0 0));
    border-color: var(--plate-stroke, oklch(50% 0 0));
  }
}
.preview svg {
  max-width: 100%;
  max-height: 100%;
  display: block;
}
.preview:empty::before {
  content: "Plate preview";
  color: var(--text-dim);
  font-size: 13px;
}

.preview-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  padding: 0 4px;
}

.editor-head {
  margin-bottom: 12px;
}
.editor-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}
.editor-head small {
  color: var(--text-dim);
  font-size: 12px;
}

.lines {
  list-style: none;
  counter-reset: line;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.lines li {
  counter-increment: line;
  display: flex;
  align-items: center;
  gap: 8px;
}
.lines li::before {
  content: counter(line, decimal-leading-zero);
  font-size: 11px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  width: 1.8em;
  text-align: right;
}
.lines input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  background: var(--surface-strong);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 6px 8px;
  color: var(--text);
  letter-spacing: 0.02em;
}
.lines input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: transparent;
}

.file-pick {
  display: inline-block;
  cursor: pointer;
}
.file-pick input { display: none; }
.file-pick span {
  display: inline-block;
  padding: 10px 16px;
  background: var(--surface-strong);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  font-weight: 500;
}

.error {
  color: var(--error);
  font-family: ui-monospace, monospace;
  font-size: 12px;
  white-space: pre-wrap;
  margin: 12px 0 0;
}

.actions-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  background: var(--surface-strong);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 12px 16px;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.05s;
}
.btn:active:not(:disabled) { transform: scale(0.985); }
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.btn.primary {
  background: var(--accent);
  color: var(--accent-text);
  border-color: transparent;
  box-shadow: 0 4px 12px rgb(255 136 0 / 0.35);
}
.btn .btn-sub {
  font-size: 11px;
  font-weight: 400;
  opacity: 0.7;
}

.footer-card {
  font-size: 12px;
  color: var(--text-dim);
}
.footer-card p { margin: 0; }
.footer-card code { font-size: 11px; }