/* ===== Root & resets ===== */
:root {
  --paper: #f2ede2;
  --paper-dark: #e7dfcd;
  --ink-navy: #1c2b3a;
  --ink-navy-soft: #2f4257;
  --ink-red: #8c2f2f;
  --ink-blue: #1f4e79;
  --ink-black: #1a1a1a;
  --line: #c9bfa8;
  --text: #2a2620;
  --text-muted: #6b6355;
  --radius: 10px;
  --shadow-stamp: 0 1px 0 rgba(0,0,0,0.05);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(0,0,0,0.02) 0, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(0,0,0,0.02) 0, transparent 40%);
  color: var(--text);
  font-family: 'Space Mono', monospace;
  min-height: 100vh;
}

h1, h2, .brand-name {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ===== Header ===== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  border-bottom: 2px solid var(--ink-navy);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.brand-mark {
  color: var(--ink-red);
  font-size: 14px;
}

.brand-name {
  font-size: 20px;
  color: var(--ink-navy);
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-sub {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.crumb {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ===== Layout ===== */
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 32px 100px;
}

.screen { display: none; }
.screen.active { display: block; animation: fadeIn 0.25s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== HOME – category grid ===== */
.hero { max-width: 560px; margin-bottom: 40px; }
.hero h1 { font-size: 42px; margin: 0 0 12px; color: var(--ink-navy); }
.hero p { font-size: 15px; color: var(--text-muted); line-height: 1.6; margin: 0; }

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

.category-card {
  background: var(--paper-dark);
  border: 2px solid var(--ink-navy);
  border-radius: var(--radius);
  padding: 28px 22px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  position: relative;
  overflow: hidden;
}

.category-card:hover {
  transform: translateY(-3px);
  box-shadow: 4px 4px 0 var(--ink-navy);
}

.category-card .cat-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 16px;
}

.category-card h3 {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  margin: 0 0 6px;
  color: var(--ink-navy);
}

.category-card p {
  font-size: 12.5px;
  color: var(--text-muted);
  margin: 0 0 10px;
  line-height: 1.5;
}

.category-card .price-range {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-red);
  letter-spacing: 0.03em;
}

/* ===== SIZE PICKER ===== */
.back-btn {
  background: none;
  border: none;
  color: var(--ink-navy);
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  cursor: pointer;
  margin-bottom: 16px;
  text-decoration: underline;
}

.shape-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
}

.shape-tab {
  background: var(--paper-dark);
  border: 2px solid var(--ink-navy);
  padding: 8px 18px;
  border-radius: 20px;
  font-family: 'Space Mono', monospace;
  cursor: pointer;
  transition: background 0.2s;
}

.shape-tab.active,
.shape-tab:hover {
  background: var(--ink-navy);
  color: var(--paper);
}

.size-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.size-card {
  background: var(--paper-dark);
  border: 2px solid var(--ink-navy);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
}

.size-card:hover {
  transform: translateY(-2px);
  box-shadow: 2px 2px 0 var(--ink-navy);
}

.size-dims {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.size-price {
  font-size: 13px;
  color: var(--ink-red);
  font-weight: 700;
}

/* ===== DESIGNER ===== */
.designer {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
}

.designer-preview {
  flex: 1 1 320px;
  max-width: 400px;
}

.designer-controls {
  flex: 1 1 300px;
}

.stamp-stage {
  background: var(--paper-dark);
  border: 2px solid var(--ink-navy);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-stamp);
}

#preview-canvas {
  max-width: 100%;
  height: auto;
}

.stage-caption {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 10px;
}

.control-block {
  margin-bottom: 24px;
}

.control-block label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.hint {
  font-weight: 400;
  text-transform: none;
  color: var(--text-muted);
}

.line-input {
  display: block;
  width: 100%;
  padding: 8px 12px;
  margin-bottom: 4px;
  border: 2px solid var(--ink-navy);
  background: var(--paper);
  font-family: 'Space Mono', monospace;
  border-radius: var(--radius);
}

/* per‑line font size controls */
.line-group {
  margin-bottom: 10px;
}

.line-size-control {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.size-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.size-slider {
  flex: 1;
  height: 4px;
  accent-color: var(--ink-navy);
}

.auto-size-btn {
  background: var(--paper-dark);
  border: 1.5px solid var(--ink-navy);
  padding: 2px 10px;
  border-radius: 12px;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  cursor: pointer;
  transition: background 0.2s;
}

.auto-size-btn.active {
  background: var(--ink-navy);
  color: var(--paper);
}

.swatch-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.swatch {
  padding: 6px 14px;
  border: 2px solid var(--ink-navy);
  background: var(--paper-dark);
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.15s;
}

.swatch.active {
  background: var(--ink-navy);
  color: var(--paper);
}

.ink-swatch {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 8px;
  font-size: 13px !important;
  text-transform: none !important;
}

.two-col {
  display: flex;
  gap: 16px;
}

.two-col > div {
  flex: 1;
}

/* ===== SUMMARY CARD ===== */
.summary-card {
  background: var(--ink-navy);
  color: var(--paper);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 24px 0 16px;
}

.summary-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.7;
}

.summary-size {
  font-size: 16px;
  font-weight: 700;
  margin-top: 2px;
}

.summary-price {
  font-size: 22px;
  font-weight: 700;
  font-family: 'Fraunces', serif;
}

.buy-btn {
  background: var(--ink-red);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 16px;
  font-family: 'Space Mono', monospace;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: transform 0.1s ease;
  width: 100%;
}

.buy-btn:hover { transform: translateY(-1px); }
.buy-btn:active { transform: translateY(0); }

.buy-note {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 12px 0 0;
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink-navy);
  color: var(--paper);
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 999;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== CUSTOM CONFIRMATION MODAL ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--paper);
  border: 2px solid var(--ink-navy);
  border-radius: var(--radius);
  max-width: 360px;
  width: 90%;
  box-shadow: 6px 6px 0 var(--ink-navy);
  transform: translateY(10px);
  transition: transform 0.25s ease;
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-body {
  text-align: center;
  padding: 32px 24px 24px;
}

.modal-icon {
  font-size: 36px;
  color: var(--ink-red);
  margin-bottom: 8px;
}

.modal-title {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  color: var(--ink-navy);
  margin: 0 0 8px;
}

.modal-file {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
  background: var(--paper-dark);
  padding: 4px 10px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 12px;
  word-break: break-all;
}

.modal-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

.modal-text strong {
  color: var(--ink-navy);
  font-weight: 700;
}

.modal-actions {
  display: flex;
  border-top: 2px solid var(--ink-navy);
}

.modal-btn {
  flex: 1;
  padding: 14px;
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}

.modal-btn--ghost {
  background: var(--paper-dark);
  color: var(--ink-navy);
  border-right: 2px solid var(--ink-navy);
  border-radius: 0 0 0 var(--radius);
}

.modal-btn--ghost:hover {
  background: var(--paper);
}

.modal-btn--primary {
  background: var(--ink-red);
  color: #fff;
  border-radius: 0 0 var(--radius) 0;
}

.modal-btn--primary:hover {
  background: #a83838;
}