/* VibeLock — Zen Mindfulness Design System & Custom CSS */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,600&display=swap');

:root {
  /* Mode Clair par défaut */
  --bg-body: #F8FAFC;
  --text-body: #0F172A;
  --text-muted: #475569;
  --color-glass-bg: rgba(255, 255, 255, 0.82);
  --color-glass-border: rgba(226, 232, 240, 0.85);
  --color-glass-hover-bg: rgba(255, 255, 255, 0.96);
  --color-glass-hover-border: rgba(16, 185, 129, 0.45);
  --color-glass-hover-shadow: 0 20px 35px -10px rgba(16, 185, 129, 0.12);
  --color-glow-bg: rgba(255, 255, 255, 0.9);
  --color-glow-border: rgba(56, 189, 248, 0.35);
  --color-glow-shadow: 0 0 35px -5px rgba(56, 189, 248, 0.12);
  --color-slider-track: #CBD5E1;
  --color-scrollbar-track: #F1F5F9;
  --color-scrollbar-thumb: #94A3B8;

  --color-slate-900: #0F172A;
  --color-slate-800: #1E293B;
  --color-slate-700: #334155;
  --color-slate-400: #94A3B8;
  --color-emerald-500: #10B981;
  --color-emerald-400: #34D399;
  --color-sky-400: #38BDF8;
  --color-indigo-500: #6366F1;
  --color-amber-500: #F59E0B;
}

html.dark {
  /* Mode Sombre */
  color-scheme: dark;
  --bg-body: #0B1120;
  --text-body: #F8FAFC;
  --text-muted: #94A3B8;
  --color-glass-bg: rgba(30, 41, 59, 0.65);
  --color-glass-border: rgba(51, 65, 85, 0.6);
  --color-glass-hover-bg: rgba(30, 41, 59, 0.85);
  --color-glass-hover-border: rgba(16, 185, 129, 0.4);
  --color-glass-hover-shadow: 0 20px 35px -10px rgba(16, 185, 129, 0.15);
  --color-glow-bg: rgba(30, 41, 59, 0.7);
  --color-glow-border: rgba(56, 189, 248, 0.3);
  --color-glow-shadow: 0 0 35px -5px rgba(56, 189, 248, 0.15);
  --color-slider-track: #334155;
  --color-scrollbar-track: #0F172A;
  --color-scrollbar-thumb: #334155;
}

html {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-body);
  color: var(--text-body);
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--color-scrollbar-thumb);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #10B981;
}

/* Glassmorphic Panels */
.glass-panel {
  background: var(--color-glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
}

.glass-panel-hover {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.glass-panel-hover:hover {
  background: var(--color-glass-hover-bg);
  border-color: var(--color-glass-hover-border);
  transform: translateY(-4px);
  box-shadow: var(--color-glass-hover-shadow);
}

.glass-card-glow {
  background: var(--color-glow-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-glow-border);
  box-shadow: var(--color-glow-shadow);
}

/* Keyframe Animations */
@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.35;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.08);
  }
}

@keyframes breathInhale {
  0% {
    transform: scale(1);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
  }
  100% {
    transform: scale(1.45);
    box-shadow: 0 0 60px rgba(16, 185, 129, 0.6);
  }
}

@keyframes breathExhale {
  0% {
    transform: scale(1.45);
    box-shadow: 0 0 60px rgba(16, 185, 129, 0.6);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
  }
}

@keyframes shimmerEffect {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.animate-float {
  animation: floatSlow 6s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulseGlow 8s ease-in-out infinite;
}

.shimmer-badge {
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0) 100%);
  background-size: 200% 100%;
  animation: shimmerEffect 4s infinite;
}

/* Smartphone Device Mockup Styling */
.phone-mockup {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border-radius: 46px;
  background: #111827;
  padding: 10px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.1), 0 0 40px -5px rgba(16, 185, 129, 0.25);
}

.phone-mockup-frame {
  position: relative;
  border-radius: 38px;
  overflow: hidden;
  background: #000000;
  border: 4px solid #1e293b;
  aspect-ratio: 9 / 19.5;
}

.phone-island {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background-color: #000000;
  border-radius: 12px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.phone-island::after {
  content: '';
  width: 10px;
  height: 10px;
  background: #1e293b;
  border-radius: 50%;
  display: inline-block;
}

.phone-screen-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Breathing Progress Circle */
.progress-ring-circle {
  transition: stroke-dashoffset 0.35s linear, stroke 0.5s ease;
}

/* Interactive Slider Custom Track & Thumb */
input[type=range].zen-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  background: transparent;
}

input[type=range].zen-slider:focus {
  outline: none;
}

input[type=range].zen-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 10px;
  cursor: pointer;
  background: var(--color-slider-track);
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

input[type=range].zen-slider::-webkit-slider-thumb {
  height: 26px;
  width: 26px;
  border-radius: 50%;
  background: #10B981;
  cursor: pointer;
  -webkit-appearance: none;
  margin-top: -8px;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.7);
  border: 2px solid #FFFFFF;
  transition: transform 0.15s ease, background-color 0.15s ease;
}

input[type=range].zen-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: #34D399;
}

input[type=range].zen-slider::-moz-range-track {
  width: 100%;
  height: 10px;
  cursor: pointer;
  background: var(--color-slider-track);
  border-radius: 9999px;
}

input[type=range].zen-slider::-moz-range-thumb {
  height: 26px;
  width: 26px;
  border-radius: 50%;
  background: #10B981;
  cursor: pointer;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.7);
  border: 2px solid #FFFFFF;
}

/* Accordion Transition */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  opacity: 0;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  opacity: 1;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: #10B981;
}

/* Focus Visible for Accessibility */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid #34D399;
  outline-offset: 2px;
}

/* Pure CSS Theme Icon Synchronization */
html.dark .theme-icon-sun { display: block !important; }
html.dark .theme-icon-moon { display: none !important; }
html:not(.dark) .theme-icon-sun { display: none !important; }
html:not(.dark) .theme-icon-moon { display: block !important; }