/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Halloween Palette ── */
:root {
  --bg:          #0a0a0c;
  --bg2:         #111115;
  --bg3:         #18181e;
  --bg4:         #1f1f28;
  --border:      #2e2e3a;

  --orange:      #ff6b00;
  --orange-dim:  #c45200;
  --orange-glow: #ff6b0033;
  --amber:       #ffaa00;
  --red:         #cc2200;
  --red-glow:    #cc220033;
  --green:       #22c55e;

  --text:        #e8e0d5;
  --text-dim:    #6b6570;
  --text-mid:    #a09898;

  --radius:      12px;
  --radius-sm:   7px;

  --font-display: 'Cinzel', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;
}

html { font-size: 15px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image:
    radial-gradient(ellipse at 20% 0%, #1a0a0022 0%, transparent 60%),
    radial-gradient(ellipse at 80% 0%, #200a3022 0%, transparent 60%);
}

/* ── Header ── */
header {
  background: linear-gradient(180deg, #0d0508 0%, #120810 60%, #0a0a0c 100%);
  border-bottom: 1px solid #2a1a10;
  padding: 1.25rem 2rem;
  position: relative;
  overflow: hidden;
}
header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% -20%, #ff6b0018 0%, transparent 70%);
  pointer-events: none;
}
.header-inner { max-width: 1140px; margin: 0 auto; }
.header-logo { display: flex; align-items: center; gap: 1.25rem; }
.logo-img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  filter: drop-shadow(0 0 12px #ff6b0066);
}
header h1 {
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--orange);
  letter-spacing: 0.04em;
  text-shadow: 0 0 30px #ff6b0055;
}
.subtitle { color: var(--text-mid); font-size: 0.88rem; margin-top: 0.1rem; }

/* ── Gallery strip ── */
.gallery-section {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 1.1rem 2rem;
}
.gallery-inner { max-width: 1140px; margin: 0 auto; }
.gallery-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.8rem; }
.gallery-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.btn-random {
  padding: 0.35rem 0.9rem; border-radius: var(--radius-sm);
  font-size: 0.82rem; font-family: var(--font-body); font-weight: 600;
  cursor: pointer; border: 1.5px solid var(--orange-dim);
  background: var(--orange-glow); color: var(--orange);
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
}
.btn-random:hover { background: #ff6b0022; box-shadow: 0 0 16px var(--orange-glow); transform: translateY(-1px); }
.gallery { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.gallery-item { display: flex; flex-direction: column; align-items: center; gap: 0.35rem; }
.gallery-item { cursor: pointer; }
.gallery-item canvas {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: block;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.gallery-item:hover canvas {
  border-color: var(--orange);
  box-shadow: 0 0 14px var(--orange-glow);
  transform: scale(1.08);
}
.gallery-item span { font-size: 0.72rem; color: var(--text-dim); }

/* ── Main layout ── */
main { flex: 1; padding: 2rem; }
.layout {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1.5rem;
  align-items: start;
}
.controls-col { display: flex; flex-direction: column; gap: 1.25rem; }

/* ── Cards ── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
  position: relative;
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #ff6b0008 0%, transparent 60%);
  pointer-events: none;
}

/* Step headers */
.step-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.1rem; }
.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--orange-glow);
  border: 1.5px solid var(--orange-dim);
  color: var(--orange);
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
}
.step-header h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.label-tag {
  font-size: 0.7rem;
  font-weight: 500;
  background: var(--bg4);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.15em 0.5em;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.label-tag.optional { color: #6b6570; }

/* ── Inputs ── */
input[type="text"] {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0.55rem 0.85rem;
  font-size: 0.95rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input[type="text"]:focus {
  border-color: var(--orange-dim);
  box-shadow: 0 0 0 3px var(--orange-glow);
}

select {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M0 0l6 8 6-8z' fill='%236b6570'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}
select:focus { border-color: var(--orange-dim); }

.hint { color: var(--text-dim); font-size: 0.8rem; margin-top: 0.35rem; line-height: 1.5; }
.cp-hint { flex-basis: 100%; color: var(--text-dim); font-size: 0.72rem; font-style: italic; margin-top: 0.15rem; padding-left: 96px; }

/* ── Upload zones ── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 0.9rem;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--orange-dim);
  background: var(--orange-glow);
}
.upload-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 1.1rem;
  text-align: center;
  pointer-events: none;
}
.upload-prompt strong { color: var(--text-mid); font-size: 0.88rem; }
.upload-icon { font-size: 1.6rem; line-height: 1; }
.thumb { width: 100%; max-height: 130px; object-fit: cover; border-radius: calc(var(--radius) - 2px); display: block; }

/* ── Sliders ── */
.slider-row { display: flex; align-items: center; gap: 0.7rem; margin-top: 0.6rem; }
.slider-row label { min-width: 80px; font-size: 0.82rem; color: var(--text-mid); flex-shrink: 0; }
.slider-row input[type="range"] { flex: 1; accent-color: var(--orange); cursor: pointer; }
.val { min-width: 52px; max-width: 68px; text-align: right; font-size: 0.78rem; color: var(--orange); font-variant-numeric: tabular-nums; font-weight: 600; white-space: nowrap; overflow: hidden; flex-shrink: 0; }

/* ── Toggle ── */
.toggle-row { display: flex; flex-direction: column; gap: 0.3rem; margin-top: 0.6rem; }
.toggle-label { display: flex; align-items: center; gap: 0.6rem; cursor: pointer; font-size: 0.88rem; color: var(--text-mid); user-select: none; }
.toggle-label input[type="checkbox"] { display: none; }
.toggle-track {
  width: 36px; height: 20px;
  background: var(--bg4); border: 1px solid var(--border); border-radius: 10px;
  position: relative; flex-shrink: 0; transition: background 0.2s;
}
.toggle-track::after {
  content: '';
  position: absolute; top: 2px; left: 2px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--text-dim); transition: transform 0.2s, background 0.2s;
}
.toggle-label input:checked ~ .toggle-track { background: var(--orange-dim); border-color: var(--orange); }
.toggle-label input:checked ~ .toggle-track::after { transform: translateX(16px); background: #fff; }

/* ── Tip box ── */
.tip-box {
  display: flex; gap: 0.6rem; align-items: flex-start;
  border: 1px solid #2a1a0e; border-left: 3px solid var(--orange-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.6rem 0.75rem; margin-top: 0.8rem;
  font-size: 0.8rem; color: var(--text-dim); line-height: 1.5;
}
.tip-icon { font-size: 1rem; flex-shrink: 0; margin-top: 0.05rem; }
.tip-box strong { color: var(--text-mid); }

/* ── Prompt generator ── */
.prompt-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-bottom: 0.5rem; }
.select-group { display: flex; flex-direction: column; gap: 0.3rem; }
.select-label { font-size: 0.78rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }
.prompt-btn-row { display: flex; gap: 0.6rem; margin-top: 0.9rem; }
.btn-ghost {
  flex: 1; padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm); font-size: 0.85rem; font-family: var(--font-body); font-weight: 500;
  cursor: pointer; background: transparent; border: 1px solid var(--border); color: var(--text-mid);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.btn-ghost:hover { border-color: var(--orange-dim); color: var(--orange); background: var(--orange-glow); }
.prompt-output {
  margin-top: 0.9rem; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.8rem; position: relative;
}
.prompt-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 0.4rem; }
.prompt-text { font-size: 0.83rem; line-height: 1.6; color: var(--text); padding-right: 3.5rem; }
.btn-copy {
  position: absolute; top: 0.8rem; right: 0.8rem;
  background: var(--bg4); border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--orange); font-size: 0.75rem; padding: 0.25rem 0.6rem; cursor: pointer;
  transition: background 0.15s;
}
.btn-copy:hover { background: var(--border); }

/* ── Preview column ── */
.preview-col { position: sticky; top: 1.5rem; align-self: start; overflow: hidden; }
.preview-card { }
.preview-card .slider-row label { min-width: 52px; }
.preview-card .val { min-width: 36px; max-width: 50px; font-size: 0.75rem; }

.eye-frame {
  width: 280px; height: 280px; border-radius: 50%;
  margin: 0 auto 1.25rem; position: relative; overflow: hidden;
  background: #000; border: 3px solid var(--border);
  box-shadow: 0 0 40px #ff6b0022, inset 0 0 20px #00000088;
}
#previewCanvas { display: block; width: 280px; height: 280px; }
.preview-placeholder {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.6rem; color: var(--text-dim); font-size: 0.83rem; text-align: center; padding: 1.5rem;
}
.placeholder-icon { font-size: 2.4rem; opacity: 0.3; }

/* ── Budget meter ── */
.budget-wrap { margin-bottom: 1.1rem; }
.budget-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.35rem; }
.budget-title { font-size: 0.8rem; color: var(--text-dim); }
.budget-num { font-size: 0.8rem; color: var(--orange); font-variant-numeric: tabular-nums; font-weight: 600; }
.budget-track { height: 7px; background: var(--bg3); border-radius: 4px; overflow: hidden; border: 1px solid var(--border); }
.budget-fill { height: 100%; background: var(--green); border-radius: 4px; transition: width 0.25s, background 0.25s; }
.budget-fill.warn { background: var(--amber); }
.budget-fill.over { background: var(--red); box-shadow: 0 0 8px var(--red-glow); }

/* ── Action buttons ── */
.btn-preview, .btn-download {
  display: block; width: 100%; padding: 0.75rem 1rem;
  border-radius: var(--radius-sm); font-size: 0.95rem; font-family: var(--font-body); font-weight: 600;
  cursor: pointer; border: none;
  transition: opacity 0.15s, transform 0.1s, box-shadow 0.15s;
  margin-bottom: 0.6rem;
}
.btn-preview:disabled, .btn-download:disabled { opacity: 0.35; cursor: not-allowed; }
.btn-preview:not(:disabled):hover, .btn-download:not(:disabled):hover { opacity: 0.9; transform: translateY(-1px); }
.btn-preview {
  background: var(--bg3); border: 1.5px solid var(--orange-dim); color: var(--orange);
}
.btn-preview:not(:disabled):hover { background: var(--orange-glow); box-shadow: 0 0 16px var(--orange-glow); }
.btn-download {
  background: linear-gradient(135deg, var(--orange-dim) 0%, #a03800 100%);
  color: #fff; box-shadow: 0 2px 12px #ff6b0033;
}
.btn-download:not(:disabled):hover { box-shadow: 0 4px 20px #ff6b0066; }

/* ── Status message ── */
.status-msg { font-size: 0.82rem; padding: 0.55rem 0.8rem; border-radius: var(--radius-sm); margin-bottom: 0.6rem; line-height: 1.5; }
.status-info  { background: #0a1a22; border: 1px solid #1a3a55; color: #60a8d4; }
.status-ok    { background: #0a1e0f; border: 1px solid #1a4a2a; color: var(--green); }
.status-error { background: #1e0a0a; border: 1px solid #4a1a1a; color: #f87171; }

/* ── Install steps ── */
.install-steps { margin-top: 0.8rem; font-size: 0.82rem; border-top: 1px solid var(--border); padding-top: 0.8rem; }
.install-steps summary { cursor: pointer; color: var(--text-dim); user-select: none; list-style: none; }
.install-steps summary:hover { color: var(--text-mid); }
.install-steps ol { margin-top: 0.65rem; padding-left: 1.3rem; color: var(--text-dim); line-height: 2; }
.install-steps li strong { color: var(--text-mid); }
.install-steps code { background: var(--bg3); padding: 0.1em 0.4em; border-radius: 4px; font-size: 0.85em; color: var(--orange); }

/* ── Footer ── */
footer { text-align: center; padding: 1.25rem; font-size: 0.8rem; color: var(--text-dim); border-top: 1px solid var(--border); background: var(--bg2); }

/* ── Tab switcher ── */
.tab-row {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
}
.tab-btn {
  flex: 1;
  padding: 0.45rem 0.7rem;
  border-radius: calc(var(--radius-sm) - 2px);
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.82rem;
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tab-btn.active {
  background: var(--orange-dim);
  color: #fff;
}
.tab-btn:not(.active):hover { background: var(--bg4); color: var(--text-mid); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Generator preview canvas ── */
.gen-preview-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 0.9rem;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
}
/* Sclera: square preview, max 100% wide */
#scleraGenCanvas { display: block; width: 100%; max-width: 200px; height: auto; aspect-ratio: 1; }
/* Iris: wide strip, fixed height */
#irisGenCanvas   { display: block; width: 100%; height: 60px; object-fit: fill; }

/* ── Color picker row ── */
.cp-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.6rem;
}
.cp-row label { min-width: 90px; font-size: 0.82rem; color: var(--text-mid); flex-shrink: 0; }
.cp-row input[type="color"] {
  width: 36px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg3);
  cursor: pointer;
  padding: 2px;
  flex-shrink: 0;
}
.cp-swatch {
  display: none;  /* hidden — browser color input already shows the swatch */
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  flex-shrink: 0;
  transition: background 0.1s;
}

/* ── Select row ── */
.select-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.6rem;
}
.select-row label { min-width: 90px; font-size: 0.82rem; color: var(--text-mid); flex-shrink: 0; }
.select-row select { flex: 1; }

/* ── Pupil / Lid shape grid ── */
.shape-grid {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.shape-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.55rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--bg3);
  color: var(--text-dim);
  font-size: 0.9rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  min-width: 58px;
}
.shape-btn span { font-size: 0.68rem; color: inherit; }
.shape-btn:hover { border-color: var(--orange-dim); color: var(--orange); background: var(--orange-glow); }
.shape-btn.active { border-color: var(--orange); background: var(--orange-glow); color: var(--orange); }

/* ── Gen controls section ── */
.gen-controls { display: flex; flex-direction: column; }

/* ── Preview note ── */
.preview-note { text-align: center; font-size: 0.75rem; color: var(--text-dim); margin-bottom: 1rem; }

/* ── Advanced section ── */
.adv-section { margin-bottom: 0.8rem; font-size: 0.82rem; }
.adv-section summary {
  cursor: pointer; color: var(--text-dim); user-select: none;
  padding: 0.4rem 0; list-style: none;
}
.adv-section summary:hover { color: var(--text-mid); }
.adv-desc { color: var(--text-dim); font-size: 0.72rem; margin: 0.4rem 0 0; line-height: 1.5; }
.adv-inner { padding-top: 0.5rem; }
.btn-reset {
  margin-top: 0.6rem; padding: 0.3rem 0.8rem; font-size: 0.72rem;
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-dim); cursor: pointer; transition: color 0.15s, border-color 0.15s;
}
.btn-reset:hover { color: var(--orange); border-color: var(--orange-dim); }

/* ── Responsive ── */
@media (max-width: 820px) {
  main { padding: 1rem; }
  .layout { grid-template-columns: 1fr; }
  .preview-card { position: static; }
  .eye-frame { width: 220px; height: 220px; }
  #previewCanvas { width: 220px; height: 220px; }
  .gallery-section { padding: 1rem; }
  .gallery-item canvas { width: 64px; height: 64px; }
  .prompt-grid { grid-template-columns: 1fr; }
  header { padding: 1rem; }
  .logo-img { width: 48px; height: 48px; }
  header h1 { font-size: 1.4rem; }
}