/* ============================================================
   KitchenCalc — Main Stylesheet
   Design: Refined Editorial / Warm Luxury
   ============================================================ */

:root {
  --bg:          #F7F4EF;
  --bg-card:     #FFFFFF;
  --bg-dark:     #1C1814;
  --accent:      #C4783A;
  --accent-dark: #9E5D28;
  --accent-light:#F0DCC8;
  --text:        #1C1814;
  --text-muted:  #7A6E65;
  --border:      #E2D9CE;
  --success:     #3A8C5C;
  --shadow:      0 4px 24px rgba(28,24,20,0.08);
  --shadow-lg:   0 12px 48px rgba(28,24,20,0.14);
  --radius:      16px;
  --radius-sm:   10px;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --transition:   0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

/* Grain texture overlay */
.grain-overlay {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.5;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== HEADER ===== */
.site-header {
  background: var(--bg-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-icon {
  font-size: 24px;
  color: var(--accent);
  line-height: 1;
}
.logo-title {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  color: #fff;
  line-height: 1.1;
}
.logo-sub {
  display: block;
  font-size: 10px;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.header-nav { display: flex; gap: 24px; }
.header-nav a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: color var(--transition);
}
.header-nav a:hover { color: var(--accent); }

/* ===== HERO ===== */
.hero {
  min-height: 85vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 24px;
  position: relative;
}
.hero-bg-shape {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(ellipse, var(--accent-light) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 20px;
}
.hero-title em {
  font-style: italic;
  color: var(--accent);
}
.hero-desc {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 32px;
  max-width: 380px;
}
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.3px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 16px rgba(196,120,58,0.3);
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196,120,58,0.4);
}
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.kitchen-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}
.kitchen-diagram svg { width: 100%; height: auto; }

/* ===== CALCULATOR SECTION ===== */
.calculator-section {
  padding: 80px 0;
}

/* ===== STEP CARDS ===== */
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  animation: fadeUp 0.4s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.step-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.step-title {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--text);
  margin-bottom: 28px;
}
.step-hint {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 20px;
  margin-top: -16px;
}

/* ===== SHAPE GRID ===== */
.shape-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.shape-card {
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
}
.shape-card:hover {
  border-color: var(--accent-light);
  background: #fdf8f3;
}
.shape-card.active {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent-dark);
}
.shape-icon {
  width: 64px;
  height: 40px;
}
.shape-icon svg { width: 100%; height: 100%; }
.shape-card span { font-size: 13px; font-weight: 600; }

/* ===== UNIT SELECTOR ===== */
.unit-selector {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.unit-label { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.unit-pills { display: flex; gap: 6px; }
.unit-pill {
  padding: 6px 16px;
  border: 1.5px solid var(--border);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-muted);
}
.unit-pill.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

/* ===== DIMS GRID ===== */
.dims-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.field-group { display: flex; flex-direction: column; gap: 6px; }
.field-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.req { color: var(--accent); }
.input-wrap {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition);
  background: var(--bg-card);
}
.input-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(196,120,58,0.12);
}
.input-wrap input {
  flex: 1;
  border: none;
  outline: none;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  background: transparent;
  color: var(--text);
}
.input-wrap input::placeholder { color: #ccc; }
.input-unit {
  padding: 0 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg);
  border-left: 1.5px solid var(--border);
  height: 100%;
  display: flex;
  align-items: center;
  min-width: 40px;
  justify-content: center;
  letter-spacing: 0.5px;
}

/* ===== WINDOWS ===== */
.window-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
  animation: fadeUp 0.2s ease both;
}
.window-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 6px;
}
.window-item select, .window-item input {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  background: var(--bg-card);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
}
.window-item select:focus, .window-item input:focus {
  border-color: var(--accent);
}
.btn-remove {
  background: #fee;
  border: 1.5px solid #f5c6c6;
  color: #c0392b;
  border-radius: 8px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 16px;
  transition: all var(--transition);
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-remove:hover { background: #fdd; }

.btn-add {
  background: transparent;
  border: 2px dashed var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
  margin-top: 8px;
}
.btn-add:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}
.optional-badge {
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 50px;
  vertical-align: middle;
  margin-left: 8px;
}

/* ===== MODULAR TOGGLE ===== */
.modular-toggle {
  display: flex;
  gap: 0;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  width: fit-content;
  margin-bottom: 32px;
}
.mod-btn {
  padding: 12px 28px;
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
}
.mod-btn + .mod-btn { border-left: 1.5px solid var(--border); }
.mod-btn.active {
  background: var(--accent);
  color: #fff;
}

/* ===== EXTRAS ===== */
.extras-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}
.extras-list { display: flex; flex-direction: column; gap: 10px; }
.extra-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.extra-item.selected {
  border-color: var(--accent);
  background: var(--accent-light);
}
.extra-item-left { display: flex; align-items: center; gap: 12px; }
.extra-item-left input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}
.extra-name { font-size: 14px; font-weight: 500; }
.extra-price {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}
.loading-text { color: var(--text-muted); font-size: 14px; }

/* ===== CALCULATE BUTTON ===== */
.calculate-row {
  text-align: center;
  padding: 16px 0 40px;
}
.btn-calculate {
  background: var(--bg-dark);
  color: #fff;
  border: none;
  padding: 18px 48px;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  transition: all var(--transition);
  box-shadow: 0 6px 24px rgba(28,24,20,0.2);
  letter-spacing: 0.3px;
}
.btn-calculate:hover {
  background: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(196,120,58,0.35);
}
.btn-arrow {
  font-size: 20px;
  transition: transform var(--transition);
}
.btn-calculate:hover .btn-arrow { transform: translateX(4px); }

/* ===== RESULTS ===== */
.results-section {
  background: var(--bg-dark);
  padding: 80px 0;
  color: #fff;
}
.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}
.results-header h2 {
  font-family: var(--font-display);
  font-size: 36px;
  color: #fff;
}
.btn-print {
  background: rgba(255,255,255,0.08);
  border: 1.5px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.8);
  padding: 10px 20px;
  border-radius: 50px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
}
.btn-print:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}
.result-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
}
.result-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-4px);
}
.highlight-card {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
}
.result-icon { font-size: 28px; margin-bottom: 12px; }
.result-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; opacity: 0.7; margin-bottom: 8px; }
.result-value { font-family: var(--font-display); font-size: 32px; color: #fff; line-height: 1; }
.result-sub { font-size: 11px; opacity: 0.6; margin-top: 4px; }

/* ===== BREAKDOWN TABLE ===== */
.pricing-breakdown { margin-bottom: 32px; }
.pricing-breakdown h3 {
  font-family: var(--font-display);
  font-size: 22px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 20px;
}
.breakdown-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.breakdown-table th {
  background: rgba(255,255,255,0.06);
  padding: 14px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.5);
}
.breakdown-table td {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 14px;
  color: rgba(255,255,255,0.85);
}
.breakdown-table tbody tr:hover td { background: rgba(255,255,255,0.04); }
.subtotal-row td, .extras-row td {
  background: rgba(255,255,255,0.04);
  font-weight: 600;
  color: rgba(255,255,255,0.7);
}
.total-row td {
  background: var(--accent) !important;
  font-size: 16px;
  color: #fff !important;
  padding: 18px 16px;
}
.quote-note {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}
.quote-note p { font-size: 12px; color: rgba(255,255,255,0.4); }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--bg-dark);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
}
.site-footer p { font-size: 12px; color: rgba(255,255,255,0.3); text-align: center; }
.site-footer a { color: var(--accent); text-decoration: none; }

/* ===== PRINT ===== */
@media print {
  body { background: #fff !important; }
  .grain-overlay, .site-header, .hero, .calculator-section,
  .btn-print, .site-footer, .calculate-row { display: none !important; }
  .results-section {
    background: #fff !important;
    color: #000 !important;
    padding: 20px !important;
    display: block !important;
  }
  .result-card { border: 1px solid #ddd !important; background: #f9f9f9 !important; color: #000 !important; }
  .result-value, .results-header h2, .pricing-breakdown h3 { color: #000 !important; }
  .breakdown-table th, .breakdown-table td { color: #000 !important; border-color: #ddd !important; }
  .total-row td { background: #333 !important; color: #fff !important; }
  .highlight-card { background: #c4783a !important; color: #fff !important; }
  .highlight-card .result-label, .highlight-card .result-value, .highlight-card .result-sub { color: #fff !important; }
  .results-header { margin-bottom: 20px; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 40px 24px;
    gap: 32px;
  }
  .hero-visual { display: none; }
  .shape-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .dims-grid { grid-template-columns: 1fr; }
  .results-grid { grid-template-columns: 1fr 1fr; }
  .step-card { padding: 24px 20px; }
  .window-item { grid-template-columns: 1fr 1fr; }
  .window-item > :last-child { grid-column: span 2; }
  .breakdown-table th:nth-child(2),
  .breakdown-table td:nth-child(2) { display: none; }
  .modular-toggle { width: 100%; }
  .mod-btn { flex: 1; }
}

@media (max-width: 480px) {
  .results-grid { grid-template-columns: 1fr; }
  .shape-card { padding: 16px 8px; }
  .hero-title { font-size: 30px; }
}