/* Theme CSS Variables and Components */

/* CSS Variables - Dark-only */
:root {
  --bg-primary: #121212; /* Darker carbon grey */
  --bg-secondary: #171717;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.06);
  --bg-glass-thick: rgba(255, 255, 255, 0.1);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.9);
  --text-muted: rgba(255, 255, 255, 0.65);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.1);
  --accent-color: #1DB954; /* Spotify green */
  --accent-hover: #19a64b;
  --accent-secondary: #1ED760;
  --success-color: #34C759;
  --warning-color: #FF9500;
  --danger-color: #FF3B30;
  --purple-accent: #BF5AF2;
  --pink-accent: #FF375F;
  --indigo-accent: #5E5CE6;
  --teal-accent: #64D2FF;
  --green-accent: #00D68F;
  --orange-accent: #FF6B35;
  --gradient-primary: linear-gradient(135deg, #1DB954 0%, #1ED760 100%);
  --gradient-accent: linear-gradient(135deg, #1DB954 0%, #1ED760 100%);
  --gradient-vibrant: linear-gradient(135deg, #FF375F 0%, #FF9500 50%, #FFCC00 100%);
  --gradient-cool: linear-gradient(135deg, #5E5CE6 0%, #64D2FF 100%);
  --gradient-green-purple: linear-gradient(135deg, #00D68F 0%, #00B383 25%, #9B59B6 75%, #BF5AF2 100%);
  --gradient-blue-orange: linear-gradient(135deg, #007AFF 0%, #0066CC 25%, #FF8C42 75%, #FF6B35 100%);
  --gradient-mesh: radial-gradient(at 40% 20%, hsla(160,100%,45%,0.25) 0px, transparent 50%),
                   radial-gradient(at 80% 0%, hsla(200,100%,56%,0.25) 0px, transparent 50%),
                   radial-gradient(at 0% 50%, hsla(270,100%,60%,0.25) 0px, transparent 50%),
                   radial-gradient(at 80% 50%, hsla(20,100%,55%,0.25) 0px, transparent 50%),
                   radial-gradient(at 0% 100%, hsla(140,100%,50%,0.25) 0px, transparent 50%),
                   radial-gradient(at 80% 100%, hsla(260,100%,65%,0.25) 0px, transparent 50%);
  --shadow-color: rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(29, 185, 84, 0.35);
  --backdrop-blur: 20px;
  
  /* Subtle noise texture (SVG data URI) */
  --noise-size: 120px;
  --noise-pattern: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='-1 0 0 0 1  0 -1 0 0 1  0 0 -1 0 1  0 0 0 1 0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='table' tableValues='0 0.08'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Glass Morphism Base */
.glass {
  background: var(--bg-glass), var(--noise-pattern);
  background-repeat: no-repeat, repeat;
  background-size: auto, var(--noise-size) var(--noise-size);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--border-glass);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.glass-thick {
  background: var(--bg-glass-thick), var(--noise-pattern);
  background-repeat: no-repeat, repeat;
  background-size: auto, var(--noise-size) var(--noise-size);
  backdrop-filter: saturate(200%) blur(30px);
  -webkit-backdrop-filter: saturate(200%) blur(30px);
  border: 1px solid var(--border-glass);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* When inside a bento box, glass elements should be compact */
.bento-box .glass-thick {
  padding: 0.5rem 0.75rem;
}

/* Apple-style Card */
.apple-card {
  background: var(--bg-card), var(--noise-pattern);
  background-repeat: no-repeat, repeat;
  background-size: auto, var(--noise-size) var(--noise-size);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 0.75rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

/* When inside a bento box, use minimal padding */
.bento-box .apple-card {
  padding: 0.5rem;
}

@media (min-width: 640px) {
  .apple-card {
    border-radius: 0.75rem;
    padding: 1rem;
  }
  
  .bento-box .apple-card {
    padding: 0.75rem;
  }
}

@media (min-width: 768px) {
  .apple-card {
    border-radius: 1rem;
    padding: 1.25rem;
  }
  
  .bento-box .apple-card {
    padding: 1rem;
  }
}

.apple-card:hover {
  background: var(--bg-card-hover);
  transform: scale(1.02);
  box-shadow: 0 10px 40px var(--shadow-color);
}

/* Unified Button System */
.btn {
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  font-weight: 500;
  font-size: 0.625rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border: none;
  text-decoration: none;
}

@media (min-width: 640px) {
  .btn {
    padding: 0.375rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    gap: 0.25rem;
  }
}

@media (min-width: 768px) {
  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
}

/* Primary Button - Gradient */
.btn-primary,
.apple-button {
  background: var(--gradient-accent);
  color: white;
  box-shadow: 0 4px 15px rgba(0, 122, 255, 0.2);
}

.btn-primary:hover,
.apple-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-primary:active,
.apple-button:active {
  transform: translateY(0);
}

/* Secondary Button - Glass */
.btn-secondary,
.apple-button-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border: 1px solid var(--border-glass);
}

.btn-secondary:hover,
.apple-button-secondary:hover {
  background: var(--bg-glass-thick);
  transform: translateY(-2px);
  border-color: var(--accent-color);
  box-shadow: 0 8px 25px var(--shadow-color);
}

/* Gradient Button Variants */
.btn-gradient-vibrant {
  background: var(--gradient-vibrant);
  color: white;
  box-shadow: 0 4px 15px rgba(255, 149, 0, 0.3);
}

.btn-gradient-vibrant:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(255, 149, 0, 0.4);
}

.btn-gradient-cool {
  background: var(--gradient-cool);
  color: white;
  box-shadow: 0 4px 15px rgba(94, 92, 230, 0.3);
}

.btn-gradient-cool:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(94, 92, 230, 0.4);
}

.btn-gradient-green-purple {
  background: var(--gradient-green-purple);
  color: white;
  box-shadow: 0 4px 15px rgba(0, 214, 143, 0.3);
}

.btn-gradient-green-purple:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(191, 90, 242, 0.4);
}

.btn-gradient-blue-orange {
  background: var(--gradient-blue-orange);
  color: white;
  box-shadow: 0 4px 15px rgba(0, 122, 255, 0.3);
}

.btn-gradient-blue-orange:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
}

/* Gradient Accent Button */
.btn-gradient-accent {
  background: linear-gradient(135deg, var(--blue-accent) 0%, var(--teal-accent) 100%);
  color: white;
  box-shadow: 0 2px 10px rgba(0, 122, 255, 0.2);
}

.btn-gradient-accent:hover {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 4px 20px rgba(90, 200, 250, 0.3);
}

/* Button Ripple Effect */
.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

/* Link Styles */
.apple-link {
  color: var(--accent-color);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.apple-link:hover {
  color: var(--accent-hover);
}

.apple-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.apple-link:hover::after {
  width: 100%;
}

/* Typography System */
h1, .h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

h2, .h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h3, .h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

h4, .h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.4;
}

h5, .h5 {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 500;
  line-height: 1.5;
}

p, .body-text {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  font-weight: 400;
  line-height: 1.6;
}

.text-small {
  font-size: clamp(0.75rem, 1.2vw, 0.875rem);
  font-weight: 400;
  line-height: 1.5;
}

.text-tiny {
  font-size: clamp(0.6875rem, 1vw, 0.75rem);
  font-weight: 400;
  line-height: 1.4;
}

/* Background Gradient Overlay */
/* Disable global gradient mesh overlay for a cleaner look */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: var(--noise-pattern);
  background-size: var(--noise-size) var(--noise-size);
  background-repeat: repeat;
  pointer-events: none;
  z-index: 0;
}

/* Home hero animated gradient name */
@keyframes gradient-pan-slow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-name {
  /* White → Yellow → Green → Blue → Purple → White */
  background-image: linear-gradient(
    120deg,
    #ffffff 0%,
    #fff5cc 8%,
    #ffe680 14%,
    #c9ffb3 22%,
    #1ED760 38%,
    #64D2FF 62%,
    #8B80FF 74%,
    #ffffff 100%
  );
  background-size: 300% 300%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradient-pan-slow 10s ease-in-out infinite;
  line-height: 1.05;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.35),
    0 8px 22px rgba(0, 0, 0, 0.3),
    0 0 24px rgba(100, 210, 255, 0.18),
    0 0 36px rgba(191, 90, 242, 0.12);
}

@media (prefers-reduced-motion: reduce) {
  .hero-name { animation: none; background-size: 100% 100%; }
}

/* Engage buttons layout: keep two columns on tablets */
.engage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem 1rem;
}

@media (min-width: 640px) {
  .engage-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1280px) {
  .engage-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.engage-item { display: flex; width: 100%; align-items: center; justify-content: flex-start; }

/* Apply subtle noise to page background */
body {
  background-color: var(--bg-primary);
  background-image: var(--noise-pattern);
  background-size: var(--noise-size) var(--noise-size);
  background-repeat: repeat;
  background-attachment: fixed;
}

/* Legacy classes for backward compatibility */
.dark-card { 
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.dark-button {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
}

.dark-button:hover {
  background-color: var(--accent-color);
  color: #000000;
}

.dark-link {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

.dark-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}