:root {
  --bg: #F1F5F9;
  --card: #FFFFFF;
  --border: #E2E8F0;
  --header-bg: #111827;
  --header-subtle: #9CA3AF;
  --accent: #16A34A;
  --accent-dark: #127A3D;
  --accent-tint: #ECFDF5;
  --text: #111827;
  --muted: #6B7280;
  --error: #DC2626;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 1px rgba(15, 23, 42, 0.04);
}

* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  display: flex;
  flex-direction: column;
}

.header {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--header-bg);
  padding: 9px 18px;
  border-bottom: 2px solid var(--accent);
}
.badge {
  width: 30px; height: 30px;
  border-radius: 7px;
  background: var(--accent);
  color: white;
  font-weight: bold;
  font-size: 12px;
  display: flex; align-items: center; justify-content: center;
}
.title-box { display: flex; align-items: baseline; gap: 8px; }
.title-box .title { color: white; font-weight: bold; font-size: 20px; }
.title-box .tagline { color: var(--header-subtle); font-size: 14px; }
.module-nav {
  margin-left: auto;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.module-nav a {
  font-size: 12px;
  font-weight: 700;
  color: var(--header-subtle);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  white-space: nowrap;
}
.module-nav a:hover { color: white; background: rgba(255, 255, 255, 0.08); }
.module-nav a.active { color: white; background: var(--accent); }

main {
  flex: 1;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: 18px 24px;
}

.hidden { display: none !important; }

.intro { margin-bottom: 20px; }
.intro h1 { margin: 0 0 4px 0; font-size: 20px; }
.intro p { margin: 0; color: var(--muted); }

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.pick-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 20px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}
.pick-card:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 6px 16px rgba(15, 23, 42, 0.10); }
.pick-card.disabled { cursor: default; opacity: 0.72; }
.pick-card.disabled:hover { transform: none; border-color: var(--border); box-shadow: var(--shadow); }

.pick-icon {
  width: 42px; height: 42px;
  border-radius: 9px;
  background: var(--accent);
  color: white;
  font-weight: 800;
  font-size: 15px;
  display: flex; align-items: center; justify-content: center;
}
.pick-card.disabled .pick-icon { background: #94A3B8; }
.pick-name { font-size: 15px; font-weight: 700; }
.pick-desc { font-size: 12px; color: var(--muted); line-height: 1.4; }
.pick-status {
  align-self: flex-start;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  padding: 3px 8px;
  border-radius: 999px;
}
.pick-status.live { background: var(--accent-tint); color: var(--accent-dark); }
.pick-status.soon { background: #F1F5F9; color: var(--muted); border: 1px solid var(--border); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 14px 18px;
  margin-bottom: 12px;
}
.card h2 {
  margin: 0 0 10px 0;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--accent-dark);
}
.design-hint {
  margin: -4px 0 10px 0;
  font-size: 13px;
  color: var(--muted);
}

.step-back {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-dark);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 0 10px 0;
  text-decoration: none;
}
.step-back:hover { text-decoration: underline; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 0;
}
.field-row-3 { grid-template-columns: repeat(3, 1fr); }
.field-row-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 700px) {
  .field-row-3, .field-row-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .field-row-3, .field-row-4 { grid-template-columns: 1fr; }
}
.field { margin-bottom: 0; }
.field label { display: block; font-size: 13px; color: var(--text); margin-bottom: 5px; font-weight: 700; }
.field input[type="number"],
.field input[type="text"],
.field input[type="tel"],
.field select {
  width: 100%;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  border: 1.5px solid var(--border);
  border-radius: 6px;
  padding: 9px 11px;
  font-family: inherit;
}
.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

#boxList { margin-bottom: 10px; }
.box-entry {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.box-entry:first-child { padding-top: 0; }
.box-entry:last-child { padding-bottom: 0; border-bottom: none; }
.box-entry-row {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
}
.box-entry-row .field { margin-bottom: 0; flex: 1 1 110px; min-width: 100px; }
.box-entry-row .field-narrow { flex: 0 1 72px; min-width: 64px; }
.box-entry-num {
  flex: 0 0 auto;
  align-self: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.border-different { display: none; gap: 12px; flex: 1 1 auto; flex-wrap: wrap; }
.border-different:not(.hidden) { display: flex; }
.remove-box-btn {
  flex: 0 0 auto;
  align-self: center;
  border: none;
  background: none;
  color: var(--error);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  padding: 8px 0;
}
.remove-box-btn:hover { text-decoration: underline; }

#shapeList { margin-bottom: 10px; }
.shape-entry {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.shape-entry:first-child { padding-top: 0; }
.shape-entry:last-child { padding-bottom: 0; border-bottom: none; }
.shape-entry-row {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
}
.shape-entry-row .field { margin-bottom: 0; flex: 1 1 110px; min-width: 100px; }
.shape-entry-row .field-narrow { flex: 0 1 90px; min-width: 80px; }

.shape-type-picker { display: flex; gap: 6px; flex: 0 0 auto; }
.shape-type-btn {
  width: 46px;
  height: 42px;
  padding: 6px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: white;
  cursor: pointer;
}
.shape-type-btn svg { width: 100%; height: 100%; display: block; }
.shape-type-btn polygon { fill: none; stroke: var(--muted); stroke-width: 3; stroke-linejoin: round; }
.shape-type-btn:hover { border-color: var(--accent); }
.shape-type-btn.active { border-color: var(--accent); background: var(--accent-tint); }
.shape-type-btn.active polygon { stroke: var(--accent-dark); fill: var(--accent-tint); }

.shape-sides { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 12px; flex: 1 1 auto; }
.side-different { display: none; gap: 12px; flex: 1 1 auto; flex-wrap: wrap; }
.side-different:not(.hidden) { display: flex; }

@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; }
}

.actions { display: flex; align-items: center; gap: 12px; margin-top: 2px; }
.accent-btn, .ghost-btn {
  border: none;
  border-radius: 6px;
  padding: 11px 26px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}
.accent-btn { background: var(--accent); color: white; }
.accent-btn:hover { background: var(--accent-dark); }
.accent-btn:disabled { background: #9CA3AF; cursor: default; }
.ghost-btn { background: white; color: var(--accent-dark); border: 1.5px solid var(--border); }
.ghost-btn:hover { background: var(--accent-tint); border-color: #A7F3D0; }

.error-msg {
  color: var(--error);
  font-size: 13px;
  font-weight: 700;
  margin-top: 10px;
}

.preview-wrap { margin-top: 16px; }
.preview-wrap h3 {
  margin: 0 0 8px 0;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--accent-dark);
}
.preview-svg {
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: auto;
  max-height: 420px;
}
.preview-svg svg { display: block; width: 100%; height: auto; }