/* ═══════════════════════════════════════════════════
   Stone Craft Quote Builder — Shared Styles
   ═══════════════════════════════════════════════════ */

:root {
  /* Brand */
  --color-primary: #2D2B6B;
  --color-primary-light: #4A4799;
  --color-primary-dark: #1E1C4A;
  --color-secondary: #C5993A;
  --color-secondary-light: #D4B05A;
  --color-secondary-dark: #A67E2E;

  /* Neutrals */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F6F3;
  --color-bg-dark: #EDEDEA;
  --color-text: #2C2C2C;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-border: #E0DDD5;
  --color-border-light: #EEECEA;

  /* Feedback */
  --color-success: #2E7D32;
  --color-success-bg: #E8F5E9;
  --color-error: #C62828;
  --color-error-bg: #FFEBEE;

  /* Typography */
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Consolas', 'Monaco', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-secondary);
}

button {
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

/* ─── LAYOUT UTILITIES ─── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

/* ─── HEADER ─── */
.site-header {
  background: var(--color-primary);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-header__logo img {
  height: 40px;
  width: auto;
  border-radius: 4px;
}

.site-header__logo span {
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  letter-spacing: 0.02em;
}

.site-header__nav a {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.site-header__nav a:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-secondary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-secondary-dark);
  color: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--color-primary);
  color: #fff;
}

.btn--secondary:hover {
  background: var(--color-primary-light);
  color: #fff;
}

.btn--outline {
  border: 2px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-bg);
}

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

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: var(--border-radius-lg);
}

.btn--block {
  width: 100%;
}

/* ─── CARDS ─── */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card--selectable {
  cursor: pointer;
  border: 2px solid var(--color-border-light);
}

.card--selectable:hover {
  border-color: var(--color-secondary-light);
}

.card--selectable.selected {
  border-color: var(--color-secondary);
  background: linear-gradient(135deg, rgba(197,153,58,0.04), rgba(45,43,107,0.04));
  box-shadow: 0 0 0 3px rgba(197,153,58,0.15), var(--shadow-md);
}

.card--selectable.selected::after {
  content: "✓";
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  width: 24px;
  height: 24px;
  background: var(--color-secondary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: bold;
}

/* ─── FORM ELEMENTS ─── */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-primary-dark);
}

.form-input,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: 1rem;
  background: var(--color-bg);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(197,153,58,0.15);
}

.form-help {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ─── RADIO / OPTION GROUPS ─── */
.option-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.option-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border-light);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.option-item:hover {
  border-color: var(--color-secondary-light);
  background: var(--color-bg-alt);
}

.option-item.selected {
  border-color: var(--color-secondary);
  background: rgba(197,153,58,0.05);
}

.option-item__radio {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  margin-top: 2px;
  transition: all var(--transition-fast);
  position: relative;
}

.option-item.selected .option-item__radio {
  border-color: var(--color-secondary);
}

.option-item.selected .option-item__radio::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 10px;
  height: 10px;
  background: var(--color-secondary);
  border-radius: 50%;
}

.option-item__content {
  flex: 1;
}

.option-item__label {
  font-weight: 600;
  color: var(--color-primary-dark);
}

.option-item__desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 2px;
}

/* ─── PRICE DISPLAY ─── */
.price-display {
  text-align: center;
  padding: var(--space-2xl);
}

.price-range {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.price-range .separator {
  color: var(--color-text-muted);
  font-size: 1.5rem;
  margin: 0 var(--space-sm);
}

.price-breakdown {
  max-width: 500px;
  margin: var(--space-xl) auto 0;
  text-align: left;
}

.price-breakdown__row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 0.9rem;
}

.price-breakdown__row:last-child {
  border-bottom: none;
}

.price-breakdown__label {
  color: var(--color-text-light);
}

.price-breakdown__amount {
  font-weight: 600;
  color: var(--color-text);
}

.disclaimer {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-style: italic;
  max-width: 600px;
  margin: var(--space-xl) auto 0;
  line-height: 1.5;
}

/* ─── PROGRESS BAR ─── */
.progress-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-xl);
  overflow-x: auto;
}

.progress-step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--transition-fast);
  position: relative;
}

.progress-step::after {
  content: "→";
  color: var(--color-border);
  margin-left: var(--space-sm);
  font-size: 0.75rem;
}

.progress-step:last-child::after {
  display: none;
}

.progress-step__number {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-bg-dark);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.progress-step.active .progress-step__number {
  background: var(--color-secondary);
  color: #fff;
}

.progress-step.active {
  color: var(--color-secondary);
  font-weight: 600;
}

.progress-step.completed .progress-step__number {
  background: var(--color-primary);
  color: #fff;
}

.progress-step.completed {
  color: var(--color-primary);
}

/* ─── FOOTER ─── */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-xl) 0;
  margin-top: var(--space-3xl);
  text-align: center;
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--color-secondary-light);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.4rem; }

  .container {
    padding: 0 var(--space-md);
  }

  .progress-bar {
    justify-content: flex-start;
    padding: var(--space-md) 0;
  }

  .progress-step {
    font-size: 0;
    padding: var(--space-xs);
  }

  .progress-step__number {
    width: 32px;
    height: 32px;
  }

  .progress-step::after {
    content: "—";
    font-size: 0.7rem;
    margin-left: var(--space-xs);
  }

  .price-range {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.5rem; }

  .btn--lg {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
}

/* ─── ANIMATIONS ─── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-in {
  animation: fadeInUp 0.4s ease forwards;
}

.animate-scale {
  animation: scaleIn 0.3s ease forwards;
}

/* ─── BACK TO HUB LINK ─── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-light);
  font-size: 0.9rem;
  padding: var(--space-md) 0;
  transition: color var(--transition-fast);
}

.back-link:hover {
  color: var(--color-primary);
}

.back-link::before {
  content: "←";
}