/* ============================================
   VIVEN LANDING PAGE - PREMIUM STYLES
   Variables de thème basées sur theme.ts
   ============================================ */

:root {
  /* Colors from theme.ts */
  --color-background: #EAE4DC;
  --color-background-secondary: #F5F1EC;
  --color-primary: #4CAF50;
  --color-primary-light: #66BB6A;
  --color-primary-dark: #388E3C;
  --color-dark: #2C2C2C;
  --color-dark-secondary: #3A3A3A;
  --color-text: #2C2C2C;
  --color-text-secondary: #6B6B6B;
  --color-text-tertiary: #9E9E9E;
  --color-accent: #2196F3;
  --color-heart: #FF6B6B;
  --color-success: #4CAF50;
  --color-border: #D4CEC4;
  --color-divider: #E8E2D8;
  --color-white: #FFFFFF;
  
  /* Beige Sereno */
  --color-beige-sereno: #FAF7F2;
  --color-beige-sereno-text: #2C2416;
  --color-beige-sereno-text-secondary: #6B5E4F;
  --color-beige-sereno-accent: #8B7355;
  
  /* Warm palette */
  --color-warm-beige: #F5F1E8;
  --color-cream-white: #FAF8F3;
  --color-golden-accent: #D4AF37;
  --color-golden-light: #E8D4A0;
  --color-warm-brown: #8B6F47;
  --color-soft-brown: #A68A64;
  --color-dark-brown: #4A3F2E;
  
  /* Spacing (système 4px) */
  --spacing-xs: 4px;
  --spacing-s: 8px;
  --spacing-m: 16px;
  --spacing-l: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-xxxl: 64px;
  
  /* Border radius */
  --radius-small: 8px;
  --radius-medium: 12px;
  --radius-large: 16px;
  --radius-xl: 24px;
  --radius-round: 9999px;
  
  /* Shadows */
  --shadow-small: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-large: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 8px 32px rgba(76, 175, 80, 0.2);
  
  /* Animation */
  --anim-fast: 150ms;
  --anim-normal: 250ms;
  --anim-slow: 350ms;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4CAF50 0%, #66BB6A 100%);
  --gradient-golden: linear-gradient(135deg, #D4AF37 0%, #E8D4A0 100%);
  --gradient-hero: linear-gradient(135deg, #4CAF50 0%, #2196F3 100%);
  --gradient-background: linear-gradient(180deg, #FAF7F2 0%, #F5F1E8 100%);
}

/* ============================================
   RESET & BASE
   ============================================ */

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gradient-background);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  font-family: inherit;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 5vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

section {
  padding: 120px 0;
  position: relative;
}

@media (max-width: 768px) {
  section {
    padding: 80px 0;
  }
  
  .container {
    padding: 0 var(--spacing-l);
  }
}

/* ============================================
   HEADER
   ============================================ */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-l) 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(250, 247, 242, 0.8);
  border-bottom: 1px solid rgba(212, 206, 196, 0.3);
  transition: all var(--anim-normal) ease;
}

header.scrolled {
  padding: var(--spacing-m) 0;
  background: rgba(250, 247, 242, 0.95);
  box-shadow: var(--shadow-medium);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  transition: transform var(--anim-fast) ease;
  line-height: 0;
}

.logo-img {
  height: 28px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.logo:hover {
  transform: scale(1.05);
}

nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--anim-fast) ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--anim-normal) ease;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Language Selector */
.language-selector {
  position: relative;
}

.language-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-s);
  padding: var(--spacing-s) var(--spacing-m);
  background: var(--color-white);
  border-radius: var(--radius-medium);
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--anim-fast) ease;
  box-shadow: var(--shadow-small);
}

.language-btn:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-1px);
}

.language-dropdown {
  position: absolute;
  top: calc(100% + var(--spacing-s));
  right: 0;
  background: var(--color-white);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-large);
  padding: var(--spacing-s);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--anim-normal) ease;
}

.language-selector.active .language-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.language-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-m);
  padding: var(--spacing-m);
  border-radius: var(--radius-small);
  transition: background var(--anim-fast) ease;
  cursor: pointer;
  width: 100%;
  text-align: left;
  background: transparent;
  font-size: 0.9375rem;
}

.language-option:hover {
  background: var(--color-background);
}

.language-option.active {
  background: var(--color-background);
  font-weight: 600;
}

.flag {
  font-size: 1.25rem;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: transparent;
  font-size: 1.5rem;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  nav.mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(250, 247, 242, 0.98);
    padding: var(--spacing-l);
    backdrop-filter: blur(20px);
  }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('/assets/images/backgrounds/simple-water.jpg') no-repeat center center;
  background-size: cover;
  opacity: 0.05;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxxl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-text {
  animation: fadeInUp 0.8s ease-out;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-s);
  padding: var(--spacing-s) var(--spacing-m);
  background: rgba(76, 175, 80, 0.1);
  border: 1px solid rgba(76, 175, 80, 0.2);
  border-radius: var(--radius-round);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: var(--spacing-l);
  animation: float 3s ease-in-out infinite;
}

.hero-title {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-m);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-l);
  animation: fadeIn 0.8s ease-out 0.2s both;
}

.hero-tagline {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  animation: fadeIn 0.8s ease-out 0.4s both;
}

.hero-ctas {
  display: flex;
  gap: var(--spacing-m);
  flex-wrap: wrap;
  animation: fadeIn 0.8s ease-out 0.6s both;
}

.btn {
  padding: var(--spacing-m) var(--spacing-xl);
  border-radius: var(--radius-medium);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--anim-normal) ease;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-m);
}

.btn-primary {
  background: var(--color-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-large);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-small);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
  border-color: var(--color-primary);
}

.hero-visual {
  position: relative;
  animation: fadeInRight 0.8s ease-out;
  z-index: 3;
}

.phone-mockup {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
  position: relative;
  transition: transform var(--anim-slow) ease;
  z-index: 2;
}

.phone-mockup:hover {
  transform: translateY(-10px) rotate(2deg);
}

.phone-frame {
  width: 100%;
  aspect-ratio: 9 / 19;
  background: linear-gradient(135deg, var(--color-cream-white) 0%, var(--color-warm-beige) 100%);
  border-radius: 48px;
  padding: 12px;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(0, 0, 0, 0.1);
  position: relative;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--color-beige-sereno);
  border-radius: 38px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-screen-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--color-beige-sereno);
}

.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: var(--color-dark);
  border-radius: 0 0 20px 20px;
  z-index: 10;
}

.hero-dove {
  position: absolute;
  top: -60px;
  right: -60px;
  animation: float 6s ease-in-out infinite;
  opacity: 0.6;
  z-index: 1;
}

.dove-icon {
  width: 150px;
  height: 150px;
  filter: drop-shadow(0 4px 12px rgba(76, 175, 80, 0.2));
}

/* Background decoration */
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(76, 175, 80, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 8s ease-in-out infinite;
}

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .phone-mockup {
    max-width: 300px;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.3;
  }
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}