/* ============================================
   RITONE BROTHERS - PREMIUM DESIGN SYSTEM
   The Gold Standard of Painting
   ============================================ */

/* === FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* === CSS CUSTOM PROPERTIES === */
:root {
  /* Brand Colors - Light Theme */

  /* Gold Accents */
  --brushed-gold: #d4af37;
  --brushed-gold-light: #e6c968;
  --brushed-gold-dark: #b8941f;

  /* Accent Colors */
  --white: #ffffff;
  --black: #1a1816;
  --success: #10b981;
  --error: #ef4444;

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, var(--brushed-gold-light) 0%, var(--brushed-gold) 50%, var(--brushed-gold-dark) 100%);
  --gradient-beige: linear-gradient(180deg, var(--warm-white) 0%, var(--primary-beige) 100%);
  --gradient-overlay-light: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(245, 241, 232, 0.9) 100%);
  --gradient-overlay-dark: linear-gradient(135deg, rgba(44, 40, 37, 0.85) 0%, rgba(44, 40, 37, 0.75) 100%);

  /* Typography */
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 8rem;

  /* Borders */
  --border-radius-sm: 0.5rem;
  --border-radius-md: 1rem;
  --border-radius-lg: 1.5rem;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  --shadow-gold: 0 4px 24px rgba(212, 175, 55, 0.3);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-3d: 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* === RESET & BASE === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--slate-gray);
  background-color: rgba(3, 147, 204, .5);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  color: var(--white);
  line-height: 1.2;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 600;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 600;
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 500;
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.8;
  color: var(--medium-text);
}

.text-gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
}

.text-large {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
}

/* === LAYOUT === */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--medium-text);
  max-width: 700px;
  margin: 0 auto;
}

/* === GLASSMORPHISM CARDS === */
.glass-card {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  transition: all var(--transition-3d);
  transform-style: preserve-3d;
  perspective: 1000px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.35);
  border-color: rgba(212, 175, 55, 0.8);
  transform: translateY(-8px) rotateX(2deg);
  box-shadow: var(--shadow-gold);
}

.glass-card-premium {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.35) 0%, rgba(255, 255, 255, 0.3) 100%);
  border: 2px solid var(--brushed-gold);
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.2);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 1rem 2.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--navy-blue-dark);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.5);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--transition-slow);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--brushed-gold);
}

.btn-secondary:hover {
  background: var(--brushed-gold);
  color: var(--navy-blue-dark);
  transform: translateY(-2px);
}

/* === GRID SYSTEM === */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }

  100% {
    background-position: 1000px 0;
  }
}

.animate-fade-in {
  animation: fadeIn 0.8s var(--transition-base) forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s var(--transition-base) forwards;
}

/* Scroll-triggered animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* === UTILITY CLASSES === */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.pt-sm {
  padding-top: var(--spacing-sm);
}

.pt-md {
  padding-top: var(--spacing-md);
}

.pt-lg {
  padding-top: var(--spacing-lg);
}

.pt-xl {
  padding-top: var(--spacing-xl);
}

.pb-sm {
  padding-bottom: var(--spacing-sm);
}

.pb-md {
  padding-bottom: var(--spacing-md);
}

.pb-lg {
  padding-bottom: var(--spacing-lg);
}

.pb-xl {
  padding-bottom: var(--spacing-xl);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 5rem;
  }

  .section {
    padding: var(--spacing-lg) 0;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .btn {
    padding: 0.875rem 2rem;
    font-size: 0.9375rem;
  }
}

/* === ACCESSIBILITY === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus styles */
*:focus-visible {
  outline: 2px solid var(--brushed-gold);
  outline-offset: 4px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}