/* ==========================================================================
   Design System & Variables - Rwanit’eau Premium
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Montserrat:wght@800&family=Playfair+Display:ital,wght@1,600&display=swap');

:root {
  /* Brand Colors Extracted from User Banner */
  --clr-navy: #1A365D;       /* Deep Navy for Trust */
  --clr-copper: #CD7F32;     /* Elegant Copper for Slogan & Accents */
  --clr-copper-light: #E68E35;
  --clr-white: #FFFFFF;
  --clr-off-white: #F8FAFC;
  --clr-text-main: #2D3748;
  --clr-text-muted: #718096;
  
  /* Typography */
  --ff-primary: 'Outfit', sans-serif;
  --ff-hero: 'Montserrat', sans-serif;
  --ff-script: 'Playfair Display', serif; 
  
  /* Effects */
  --glass: rgba(255, 255, 255, 0.9);
  --glass-blur: blur(12px);
  --shadow-premium: 0 10px 30px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { 
  font-family: var(--ff-primary); 
  color: var(--clr-text-main); 
  background-color: var(--clr-white); 
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
section { padding: 8rem 5%; }

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: transparent;
  padding: 1.5rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  transition: var(--transition);
}

header.scrolled {
  background: var(--glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 1rem 5%;
  box-shadow: var(--shadow-premium);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

@media (max-width: 768px) {
  .logo-img { height: 40px; }
}

nav ul { display: flex; gap: 2rem; align-items: center; }
nav ul a { font-weight: 600; font-size: 0.95rem; color: white; opacity: 0.9; }
nav ul a:hover, nav ul a.active { opacity: 1; color: var(--clr-copper); }

/* Scrolled header: liens redeviennent bleu navy */
header.scrolled nav ul a { color: var(--clr-navy); opacity: 0.8; }
header.scrolled nav ul a:hover, header.scrolled nav ul a.active { opacity: 1; color: var(--clr-copper); }

.cta-group { display: flex; gap: 1rem; align-items: center; }

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  height: 100vh;
  min-height: 700px;
  background-color: var(--clr-navy); /* Solid bg for transparency safety */
  background-image: 
    linear-gradient(rgba(10, 25, 47, 0.2), rgba(10, 25, 47, 0.55)),
    url('../assets/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: white;
  padding: 0 5%;
}

.hero h1 {
  font-family: var(--ff-hero);
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.9;
  margin-bottom: 0.5rem;
  letter-spacing: -3px;
  filter: drop-shadow(0 5px 15px rgba(0,0,0,0.3));
}

.hero .playfair {
  font-family: var(--ff-script);
  font-style: italic;
  font-size: clamp(1.5rem, 4vw, 3rem);
  color: var(--clr-copper);
  margin-bottom: 2rem;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  max-width: 800px;
  margin-bottom: 3rem;
  opacity: 0.9;
}

/* ==========================================================================
   Subpage Headers
   ========================================================================== */
.subpage-hero {
  padding: 12rem 5% 6rem;
  background-color: var(--clr-navy);
  background-size: cover;
  background-position: center;
  position: relative;
  text-align: center;
  color: white;
}

.subpage-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(rgba(26, 54, 93, 0.6), rgba(26, 54, 93, 0.8));
  z-index: 1;
}

.subpage-hero-content {
  position: relative;
  z-index: 2;
}

.subpage-hero h1 {
  font-family: var(--ff-hero);
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1rem;
}

.subpage-hero p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0.9;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
  border: 2px solid transparent;
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--clr-copper);
  color: white;
}

.btn-primary:hover {
  background: var(--clr-copper-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(205, 127, 50, 0.3);
}

.btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: white;
  color: var(--clr-navy);
  border-color: white;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.service-card {
  background: var(--clr-off-white);
  padding: 3rem 2rem;
  border-radius: 24px;
  transition: var(--transition);
  border: 1px solid transparent;
}

.service-card:hover {
  background: white;
  transform: translateY(-10px);
  box-shadow: var(--shadow-premium);
  border-color: rgba(205, 127, 50, 0.2);
}

.service-card i {
  font-size: 2.5rem;
  color: var(--clr-copper);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-family: var(--ff-hero);
  margin-bottom: 1rem;
}

/* ==========================================================================
   Pricing Table
   ========================================================================== */
.pricing-section {
  background-color: var(--clr-off-white);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.price-item {
  background: white;
  padding: 2rem;
  border-radius: 20px;
  box-shadow: var(--shadow-premium);
  position: relative;
}

.price-tag {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--clr-navy);
  margin: 1rem 0;
}

.price-item ul {
  margin: 2rem 0;
}

.price-item li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
/* ==========================================================================
   Responsive & Navigation Fixes
   ========================================================================== */
.burger-btn {
  display: none;
  font-size: 1.5rem;
  color: var(--clr-navy);
  cursor: pointer;
  z-index: 2001;
}

@media (max-width: 1024px) {
  nav { display: none; }
  .cta-group { display: none; }
  .burger-btn { display: block; }
  
  .logo-text { font-size: 1.6rem; }
  .logo-slogan { font-size: 0.8rem; }
  
  header { padding: 1rem 5%; background: var(--glass); backdrop-filter: var(--glass-blur); }
}

@media (max-width: 768px) {
  section { padding: 4rem 5%; }
  .hero h1 { font-size: 2.5rem; letter-spacing: -2px; }
  .hero .playfair { font-size: 1.5rem; }
  
  /* Hero Buttons Stacking */
  .hero-buttons {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
  }
  .hero-buttons .btn { width: 100%; max-width: 300px; }
}

/* Contact Page Responsiveness */
@media (max-width: 992px) {
  .contact-page-layout {
    grid-template-columns: 1fr !important;
    padding-top: 8rem !important;
    gap: 3rem !important;
  }
}

/* Link Styling for Contact Info */
.contact-info-link {
    color: var(--clr-navy);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

.contact-info-link:hover {
    color: var(--clr-copper);
    border-bottom-color: var(--clr-copper);
}

/* Mobile Side Menu */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100%;
  background: white;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: 0.4s cubic-bezier(0.77,0.2,0.05,1.0);
}

.mobile-menu-overlay.active {
  right: 0;
}

.mobile-menu-overlay ul {
  text-align: center;
}

.mobile-menu-overlay li {
  margin: 1.5rem 0;
}

.mobile-menu-overlay a {
  font-family: var(--ff-hero);
  font-size: 1.8rem;
  color: var(--clr-navy);
  font-weight: 800;
}

.mobile-menu-overlay .close-menu {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 2rem;
  color: var(--clr-navy);
  cursor: pointer;
}
/* ==========================================================================
   Lightbox / Modal
   ========================================================================== */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    cursor: pointer;
    backdrop-filter: blur(5px);
}

.lightbox-modal img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.lightbox-modal.active img {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    transform: rotate(90deg);
    color: var(--clr-copper);
}

/* ==========================================================================
   Background Music Button
   ========================================================================== */
#music-toggle-btn {
    position: fixed;
    bottom: 2rem;
    left: 2rem; /* En bas à gauche pour ne pas gêner WhatsApp s'il y en a un à droite */
    width: 50px;
    height: 50px;
    background: var(--clr-navy);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 9999;
    transition: var(--transition);
}

#music-toggle-btn:hover {
    transform: scale(1.1);
    background: var(--clr-copper);
}

#music-toggle-btn.playing {
    background: var(--clr-copper);
    animation: pulseAudio 2s infinite;
}

@keyframes pulseAudio {
    0% { box-shadow: 0 0 0 0 rgba(205, 127, 50, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(205, 127, 50, 0); }
    100% { box-shadow: 0 0 0 0 rgba(205, 127, 50, 0); }
}

@media (max-width: 768px) {
    #music-toggle-btn {
        bottom: 1.5rem;
        left: 1.5rem;
        width: 45px;
        height: 45px;
    }
}

/* ==========================================================================
   Music Invite Banner
   ========================================================================== */
#music-invite-banner {
    position: fixed;
    bottom: 5.5rem;
    left: 2rem;
    background: rgba(26, 54, 93, 0.92);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 9998;
    cursor: pointer;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: opacity 0.5s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: slideInLeft 0.5s ease 1s both;
}

@keyframes slideInLeft {
    from { transform: translateX(-130%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}