/* ============================================
   DJ Contract Generator - Vanilla JS
   Design: Dark theme with warm gold accents
   ============================================ */

:root {
  --bg: #121218;
  --bg-card: #1a1a22;
  --bg-input: #1e1e28;
  --border: #2a2a36;
  --border-focus: #c8a84b;
  --text: #e8e4dc;
  --text-muted: #8a8690;
  --text-heading: #f5f2ed;
  --gold: #c8a84b;
  --gold-dim: rgba(200, 168, 75, 0.15);
  --gold-hover: #d4b85c;
  --danger: #e05555;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --font-sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Header */
.header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gold);
}

.logo h1 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.2;
}

.logo p {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  gap: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--gold);
  color: #1a1a22;
}

.btn-primary:hover {
  background: var(--gold-hover);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1rem;
}

/* Main */
.main {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Step Navigation */
.step-nav {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.step-btn {
  flex-shrink: 0;
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.step-btn:hover {
  color: var(--text);
  background: var(--gold-dim);
}

.step-btn.active {
  color: var(--gold);
  background: var(--gold-dim);
  font-weight: 700;
}

.step-btn.completed {
  color: var(--text);
}

.step-btn.completed::after {
  content: " ✓";
  color: var(--gold);
}

/* Form */
.form-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.form-step {
  display: none;
}

.form-step.active {
  display: block;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-step h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 0.25rem;
}

.step-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.subsection-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold);
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
}

.form-group small {
  font-size: 0.7rem;
  color: var(--text-muted);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  transition: border-color 0.15s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

select {
  cursor: pointer;
}

.input-prefix {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s ease;
}

.input-prefix:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.input-prefix span {
  padding: 0 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  background: rgba(255,255,255,0.03);
  border-right: 1px solid var(--border);
  line-height: 2.4;
}

.input-prefix input {
  border: none;
  background: transparent;
  flex: 1;
}

.input-prefix input:focus {
  box-shadow: none;
}

/* Checkbox Grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.checkbox-card {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s ease;
}

.checkbox-card:hover {
  border-color: var(--gold);
  background: var(--gold-dim);
}

.checkbox-card input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-card:has(input:checked) {
  border-color: var(--gold);
  background: var(--gold-dim);
}

.checkbox-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-heading);
}

.checkbox-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.checkbox-list label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.4rem 0;
}

.checkbox-list input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--gold);
  cursor: pointer;
}

/* Form Navigation */
.form-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.step-counter {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Review Summary */
.review-summary {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.review-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.review-card h4 {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.review-card p {
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.review-card .muted {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.review-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.review-badge {
  padding: 0.2rem 0.6rem;
  background: var(--gold-dim);
  border: 1px solid rgba(200, 168, 75, 0.3);
  border-radius: 4px;
  font-size: 0.72rem;
  color: var(--gold);
}

/* Generate Actions */
.generate-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.generate-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1rem;
  text-align: center;
}

/* Responsive */
@media (max-width: 640px) {
  .main {
    padding: 1rem;
  }

  .form-container {
    padding: 1.25rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .header-actions {
    display: none;
  }

  .step-nav {
    gap: 0.15rem;
  }

  .step-btn {
    font-size: 0.7rem;
    padding: 0.4rem 0.6rem;
  }

  .generate-actions {
    flex-direction: column;
  }

  .generate-actions .btn {
    width: 100%;
    justify-content: center;
  }
}