/* ==========================================================================
   Red Letter Painting & Remodeling — Secondary Demo 2 (web2)
   Bleeding-Edge CSS Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

:root {
  /* Brand Crimson & Gold Tokens */
  --color-crimson: #990000;
  --color-crimson-glow: #dc2626;
  --color-crimson-dark: #500000;
  --color-gold: #f59e0b;
  --color-gold-glow: #fbbf24;
  --color-amber-alpha: rgba(245, 158, 11, 0.12);

  /* Dark Theme Default */
  --bg-primary: #0b0f19;
  --bg-surface: rgba(18, 26, 43, 0.72);
  --bg-surface-solid: #121a2b;
  --bg-card: rgba(23, 33, 53, 0.65);
  --bg-card-hover: rgba(31, 45, 71, 0.85);
  --bg-input: rgba(15, 23, 42, 0.8);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0b0f19;

  --border-glass: rgba(255, 255, 255, 0.12);
  --border-glass-glow: rgba(220, 38, 38, 0.35);
  --border-gold-glow: rgba(245, 158, 11, 0.4);

  --shadow-glass: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px rgba(220, 38, 38, 0.25);
  --shadow-gold: 0 0 30px rgba(245, 158, 11, 0.2);

  --radius-sm: 0.5rem;
  --radius-md: 0.85rem;
  --radius-lg: 1.25rem;
  --radius-full: 9999px;

  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --backdrop-blur: blur(16px);
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light Theme Tokens */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-surface: rgba(255, 255, 255, 0.85);
  --bg-surface-solid: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --bg-input: #f1f5f9;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --border-glass: rgba(15, 23, 42, 0.08);
  --border-glass-glow: rgba(153, 0, 0, 0.25);
  --shadow-glass: 0 20px 40px -15px rgba(15, 23, 42, 0.08);
}

/* Base Reset & Smooth Scrolling */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Dynamic Mesh Background Grid */
.mesh-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  pointer-events: none;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 10% 10%, rgba(153, 0, 0, 0.18) 0px, transparent 50%),
    radial-gradient(at 90% 15%, rgba(245, 158, 11, 0.12) 0px, transparent 50%),
    radial-gradient(at 85% 85%, rgba(220, 38, 38, 0.15) 0px, transparent 50%),
    radial-gradient(at 15% 90%, rgba(30, 41, 59, 0.4) 0px, transparent 50%);
  transition: background-color var(--transition-smooth);
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 18s ease-in-out infinite alternate;
  pointer-events: none;
}

.orb-1 {
  top: -10%;
  left: -5%;
  width: 45vw;
  height: 45vw;
  background: var(--color-crimson);
}

.orb-2 {
  bottom: 10%;
  right: -5%;
  width: 40vw;
  height: 40vw;
  background: var(--color-gold);
  animation-delay: -9s;
}

@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
  100% { transform: translate(-20px, 50px) scale(0.95); }
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 20%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-crimson {
  background: linear-gradient(135deg, #f87171 0%, #dc2626 50%, #990000 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-gold {
  background: linear-gradient(135deg, #fef08a 0%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glassmorphism Containers */
.glass-panel {
  background: var(--bg-surface);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glass);
  transition: all var(--transition-smooth);
}

.glass-card {
  background: var(--bg-card);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glass);
  transition: all var(--transition-smooth);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glass-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Glass Navigation */
.header-glass {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 3rem);
  max-width: 1280px;
  z-index: 100;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  background: rgba(11, 15, 25, 0.75);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-glass);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.header-logo img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons & CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn-crimson {
  background: linear-gradient(135deg, #dc2626 0%, #990000 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(220, 38, 38, 0.35);
}

.btn-crimson:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(220, 38, 38, 0.5);
  background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
}

.btn-gold {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: #0f172a;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.45);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Theme Toggle Button */
.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: rotate(15deg);
}

/* Hero Section */
.hero-section {
  padding-top: 9rem;
  padding-bottom: 5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(220, 38, 38, 0.12);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: #f87171;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-glass);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.trust-rating {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: #ffffff;
}

.trust-stars {
  color: var(--color-gold);
  font-size: 0.9rem;
}

.hero-visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-glass);
}

.hero-visual-card img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

.hero-card-overlay {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  padding: 1.25rem;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Feature Grid Cards */
.section-title-wrap {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

/* Interactive Before / After Split Slider */
.before-after-container {
  position: relative;
  width: 100%;
  height: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  user-select: none;
  box-shadow: var(--shadow-glass);
  border: 1px solid var(--border-glass);
}

.ba-image-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
}

.ba-before {
  z-index: 1;
  width: 50%;
  border-right: 2px solid var(--color-gold);
}

.ba-after {
  z-index: 0;
}

.ba-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--color-gold);
  z-index: 10;
  transform: translateX(-50%);
  cursor: ew-resize;
}

.ba-handle-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-gold);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.6);
  font-size: 1.1rem;
}

.ba-badge {
  position: absolute;
  top: 1.25rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  color: #fff;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  z-index: 5;
}

.ba-badge-before { left: 1.25rem; border: 1px solid rgba(255, 255, 255, 0.2); }
.ba-badge-after { right: 1.25rem; border: 1px solid var(--color-gold); }

/* Paint Color Visualizer Component */
.visualizer-box {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2rem;
  padding: 2rem;
  border-radius: var(--radius-lg);
}

.visualizer-preview {
  position: relative;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: #1e293b;
  background-size: cover;
  background-position: center;
}

.visualizer-color-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  mix-blend-mode: multiply;
  opacity: 0.65;
  transition: background-color var(--transition-smooth);
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin-top: 1rem;
}

.color-swatch-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.color-swatch-btn:hover, .color-swatch-btn.active {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-gold);
}

.swatch-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

/* Instant Estimate Calculator Component */
.calc-card {
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  max-width: 860px;
  margin: 0 auto;
}

.calc-step {
  display: none;
}

.calc-step.active {
  display: block;
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.calc-option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.calc-option-card {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
}

.calc-option-card:hover, .calc-option-card.selected {
  background: rgba(220, 38, 38, 0.15);
  border-color: var(--color-crimson-glow);
  box-shadow: 0 0 20px rgba(220, 38, 38, 0.2);
}

.calc-option-icon {
  font-size: 2.2rem;
  margin-bottom: 0.75rem;
  color: var(--color-gold);
}

.calc-result-display {
  text-align: center;
  padding: 2rem;
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid var(--border-glass-glow);
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
}

.calc-price-range {
  font-size: 3rem;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-gold-glow);
}

/* Floating Action Dock for Mobile & Quick CTA */
.floating-action-bar {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Footer & Suburbs */
.footer-glass {
  margin-top: 6rem;
  padding: 4rem 0 2rem 0;
  background: rgba(7, 10, 18, 0.92);
  border-top: 1px solid var(--border-glass);
}

.suburb-badge {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0.25rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.75rem; }
  .visualizer-box { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-title { font-size: 2.25rem; }
  .before-after-container { height: 320px; }
  .header-glass { width: calc(100% - 1.5rem); }
}