/* =========================
   VARIABLES & THEMES
========================= */
:root {
  --bg: #f4f6fb;
  --bg-alt: #260632;
  --text: #0f172a;
  --text-muted: #475569;
  --primary: #0a5cff;
  --primary-dark: #083ea3;
  --accent: #7c3aed;
  --card: #ffffff;
  --border: #2a0a45;
  --radius: 18px;
  --shadow: 0 20px 40px rgba(0,0,0,.08);
  --transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

body.dark {
  --bg: #0b1020;
  --bg-alt: #111827;
  --text: #e5e7eb;
  --text-muted: #9ca3af;
  --card: #1f2933;
  --border: #2d3748;
  --primary: #38bdf8;
  --primary-dark: #0ea5e9;
}

/* =========================
   BASE
========================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, var(--bg), var(--bg-alt));
  color: var(--text);
  line-height: 1.7;
}

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

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

/* =========================
   LAYOUT
========================= */
.container {
  max-width: 1200px;
  margin: auto;
  padding: 0 clamp(12px, 4vw, 40px);
}

/* =========================
   HEADER
========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  animation: slideInDown 0.6s ease;
}

body.dark .site-header {
  background: rgba(15,23,42,.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: clamp(50px, 8vw, 80px);
  padding: 0 clamp(12px, 4vw, 40px);
  flex-wrap: wrap;
  gap: 10px;
}

.brand-name {
  font-size: clamp(16px, 3.5vw, 24px);
  font-weight: 800;
  color: var(--primary);
  animation: fadeInLeft 0.6s ease;
  flex: 1;
  min-width: 120px;
}

/* NAV */
.nav-links {
  list-style: none;
  display: flex;
  gap: clamp(8px, 2.5vw, 28px);
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
  flex: 1;
}

.nav-links a {
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  transition: color 0.3s ease;
  animation: fadeInUp 0.6s ease backwards;
  font-size: clamp(12px, 2vw, 16px);
  padding: clamp(6px, 1.5vw, 10px) clamp(8px, 2vw, 12px);
}

.nav-links a::before {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 10px;
  transition: width 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 0 10px rgba(10, 92, 255, 0.5);
}

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

.nav-links a.active::before {
  width: 100%;
}

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

/* =========================
   HERO
========================= */
.hero {
  padding: clamp(60px, 10vw, 100px) 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(24px, 5vw, 56px);
  margin-bottom: clamp(15px, 2vw, 30px);
  font-weight: 900;
  line-height: 1.2;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInUp 0.8s ease;
}

.hero p {
  max-width: 800px;
  margin: auto;
  color: var(--text-muted);
  font-size: clamp(14px, 2.5vw, 18px);
  line-height: 1.6;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

/* =========================
   SERVICES GRID
========================= */
.services {
  padding: clamp(60px, 8vw, 100px) 0;
}

.services h2 {
  font-size: clamp(24px, 4.5vw, 42px);
  text-align: center;
  margin-bottom: clamp(30px, 4vw, 60px);
  font-weight: 900;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(30px, 4vw, 60px);
}

/* CARD */
.service-card {
  background: linear-gradient(180deg, var(--card), rgba(255,255,255,.85));
  border-radius: var(--radius);
  padding: clamp(20px, 4vw, 32px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s ease backwards;
  display: flex;
  flex-direction: column;
  min-height: 250px;
}

body.dark .service-card {
  background: linear-gradient(180deg, var(--card), rgba(31,41,55,.9));
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(56,189,248,.15), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.service-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(10, 92, 255, 0.1) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.6s ease;
}

.service-card:hover::before {
  opacity: 1;
}

.service-card:hover::after {
  opacity: 1;
}

.service-card:hover {
  transform: translateY(-15px) scale(1.03);
  box-shadow: 0 30px 60px rgba(10, 92, 255, 0.2);
  border-color: var(--primary);
}

.service-card h3 {
  margin-top: 0;
  font-size: clamp(16px, 2.5vw, 22px);
  color: var(--primary);
  margin-bottom: clamp(10px, 1.5vw, 15px);
  font-weight: 700;
}

.service-card p,
.service-card li {
  color: var(--text-muted);
  font-size: clamp(13px, 1.8vw, 16px);
  line-height: 1.6;
  flex-grow: 1;
}

.service-card ul {
  padding-left: clamp(14px, 2vw, 18px);
  margin-top: clamp(10px, 1.5vw, 15px);
}

.service-card img {
  margin-top: clamp(12px, 2vw, 18px);
  border-radius: 14px;
  max-width: 100%;
  height: auto;
  display: block;
}

/* =========================
   BUTTONS
========================= */
.btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: clamp(8px, 1.5vw, 12px) clamp(14px, 2.5vw, 24px);
  font-weight: 600;
  font-size: clamp(12px, 1.8vw, 15px);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 10px 20px rgba(10,92,255,.25);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(10,92,255,.4);
}

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

/* =========================
   FOOTER
========================= */
.site-footer {
  padding: clamp(30px, 5vw, 50px) clamp(12px, 4vw, 40px);
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: clamp(12px, 1.8vw, 16px);
}

/* =========================
   SCROLL TOP
========================= */
.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: none;
  z-index: 200;
}

/* =========================
   RESPONSIVE
========================= */
/* Tablets and small laptops */
@media (max-width: 1024px) {
  .container {
    padding: 0 clamp(12px, 3vw, 30px);
  }

  .header-inner {
    height: clamp(50px, 7vw, 72px);
    padding: 0 clamp(12px, 3vw, 30px);
  }

  .brand-name {
    font-size: clamp(14px, 3vw, 20px);
  }

  .nav-links {
    gap: clamp(12px, 2vw, 24px);
  }

  .nav-links a {
    font-size: clamp(11px, 1.8vw, 15px);
    padding: clamp(5px, 1vw, 10px) clamp(8px, 1.5vw, 12px);
  }

  .service-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: clamp(18px, 2.5vw, 28px);
  }

  .hero {
    padding: clamp(60px, 6vw, 90px) 0;
  }

  .hero h1 {
    font-size: clamp(26px, 4vw, 48px);
    margin-bottom: clamp(12px, 2vw, 24px);
  }

  .hero p {
    font-size: clamp(13px, 2vw, 17px);
  }

  .service-card {
    padding: clamp(18px, 3vw, 28px);
  }

  .service-card h3 {
    font-size: clamp(15px, 2.2vw, 20px);
    margin-bottom: clamp(8px, 1.5vw, 12px);
  }

  .service-card p,
  .service-card li {
    font-size: clamp(12px, 1.6vw, 15px);
  }

  .slideshow {
    height: clamp(250px, 40vw, 320px);
  }
}

/* Mobile landscapes and tablets */
@media (max-width: 768px) {
  .header-inner {
    height: clamp(48px, 6vw, 60px);
    padding: 0 clamp(10px, 2vw, 20px);
  }

  .brand-name {
    font-size: clamp(14px, 2.8vw, 18px);
  }

  .nav-links {
    gap: clamp(8px, 1.5vw, 16px);
  }

  .nav-links a {
    font-size: clamp(11px, 1.5vw, 13px);
    font-weight: 500;
    padding: clamp(4px, 0.8vw, 8px) clamp(6px, 1.2vw, 10px);
  }

  .hero {
    padding: clamp(40px, 4vw, 60px) 0;
  }

  .hero h1 {
    font-size: clamp(20px, 3.5vw, 36px);
    margin-bottom: clamp(10px, 1.5vw, 18px);
  }

  .hero p {
    font-size: clamp(12px, 1.8vw, 15px);
  }

  .services {
    padding: clamp(40px, 5vw, 60px) 0;
  }

  .services h2 {
    font-size: clamp(20px, 3.5vw, 32px);
    margin-bottom: clamp(20px, 3vw, 40px);
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: clamp(14px, 2vw, 20px);
    margin-top: clamp(24px, 3vw, 40px);
  }

  .service-card {
    padding: clamp(16px, 2.5vw, 24px);
    min-height: auto;
  }

  .service-card h3 {
    font-size: clamp(14px, 2vw, 18px);
    margin-bottom: clamp(8px, 1.2vw, 12px);
  }

  .service-card p,
  .service-card li {
    font-size: clamp(12px, 1.4vw, 14px);
  }

  .service-card ul {
    padding-left: clamp(12px, 1.8vw, 16px);
    margin-top: clamp(8px, 1.2vw, 12px);
  }

  .btn {
    padding: clamp(6px, 1.2vw, 10px) clamp(12px, 2vw, 18px);
    font-size: clamp(11px, 1.6vw, 13px);
  }

  .slideshow {
    height: clamp(200px, 35vw, 280px);
  }

  .slide-btn {
    font-size: clamp(14px, 3vw, 18px);
    padding: clamp(6px, 1.2vw, 10px);
  }

  .dots {
    bottom: clamp(8px, 1.5vw, 12px);
    gap: clamp(4px, 1vw, 6px);
  }

  .dot {
    width: clamp(6px, 1.5vw, 8px);
    height: clamp(6px, 1.5vw, 8px);
  }

  .site-footer {
    padding: clamp(20px, 3vw, 30px) clamp(10px, 2vw, 20px);
    font-size: clamp(11px, 1.5vw, 13px);
  }
}

/* Small phones */
@media (max-width: 480px) {
  .header-inner {
    height: clamp(44px, 5vw, 50px);
    padding: 0 clamp(8px, 1.5vw, 12px);
  }

  .brand-name {
    font-size: clamp(13px, 2.5vw, 16px);
  }

  .nav-links {
    gap: clamp(6px, 1.2vw, 10px);
  }

  .nav-links a {
    font-size: clamp(10px, 1.2vw, 12px);
    font-weight: 400;
    padding: clamp(3px, 0.6vw, 6px) clamp(5px, 1vw, 8px);
  }

  .hero {
    padding: clamp(30px, 3vw, 45px) 0;
  }

  .hero h1 {
    font-size: clamp(18px, 4vw, 28px);
    margin-bottom: clamp(8px, 1.2vw, 16px);
  }

  .hero p {
    font-size: clamp(11px, 1.6vw, 13px);
    margin-bottom: clamp(15px, 2vw, 24px);
  }

  .container {
    padding: 0 clamp(8px, 1.5vw, 12px);
  }

  .services {
    padding: clamp(30px, 4vw, 45px) 0;
  }

  .services h2 {
    font-size: clamp(16px, 3vw, 24px);
    margin-bottom: clamp(15px, 2.5vw, 30px);
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: clamp(12px, 1.8vw, 16px);
    margin-top: clamp(18px, 2.5vw, 30px);
  }

  .service-card {
    padding: clamp(14px, 2.2vw, 18px);
    margin-bottom: clamp(8px, 1.5vw, 12px);
  }

  .service-card h3 {
    font-size: clamp(13px, 1.8vw, 16px);
    margin-bottom: clamp(6px, 1vw, 10px);
  }

  .service-card p,
  .service-card li {
    font-size: clamp(11px, 1.2vw, 13px);
    line-height: 1.5;
  }

  .service-card ul {
    padding-left: clamp(12px, 1.5vw, 14px);
    margin-top: clamp(6px, 1vw, 10px);
  }

  .service-card img {
    margin-top: clamp(10px, 1.5vw, 14px);
    border-radius: 10px;
  }

  .btn {
    padding: clamp(6px, 1vw, 8px) clamp(10px, 1.8vw, 14px);
    font-size: clamp(10px, 1.4vw, 12px);
    border-radius: 999px;
  }

  .slideshow {
    height: clamp(160px, 30vw, 220px);
  }

  .slide-btn {
    font-size: clamp(12px, 2.5vw, 16px);
    padding: clamp(5px, 1vw, 8px);
  }

  .slide-btn.prev { left: clamp(6px, 1.2vw, 10px); }
  .slide-btn.next { right: clamp(6px, 1.2vw, 10px); }

  .dots {
    bottom: clamp(6px, 1.2vw, 10px);
    gap: clamp(3px, 0.8vw, 5px);
  }

  .dot {
    width: clamp(5px, 1.2vw, 7px);
    height: clamp(5px, 1.2vw, 7px);
  }

  .site-footer {
    padding: clamp(16px, 2.5vw, 24px) clamp(8px, 1.5vw, 12px);
    font-size: clamp(10px, 1.2vw, 12px);
  }

  .scroll-top {
    bottom: clamp(12px, 2vw, 16px);
    right: clamp(12px, 2vw, 16px);
  }
}

/* Ultra small phones */
@media (max-width: 360px) {
  .header-inner {
    height: 44px;
    padding: 0 8px;
  }

  .brand-name {
    font-size: 13px;
  }

  .nav-links {
    gap: 4px;
  }

  .nav-links a {
    font-size: 9px;
    padding: 3px 4px;
  }

  .hero h1 {
    font-size: 16px;
  }

  .hero p {
    font-size: 11px;
  }

  .container {
    padding: 0 8px;
  }

  .service-card {
    padding: 12px;
  }

  .service-card h3 {
    font-size: 12px;
  }

  .service-card p,
  .service-card li {
    font-size: 10px;
  }

  .btn {
    padding: 5px 10px;
    font-size: 10px;
  }

  .slideshow {
    height: 140px;
  }

  .site-footer {
    padding: 12px 8px;
    font-size: 9px;
  }
}

/* =========================
   SLIDESHOW
========================= */
/* Slideshow container */
.slideshow {
  position: relative;
  height: 350px;
  overflow: hidden;
  border-radius: 16px;
  background: #000; /* fallback while images load */
}

/* Images slides */
.slide {
  position: absolute;
  inset: 0; /* top:0; right:0; bottom:0; left:0; */
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
  z-index: 1;
  will-change: opacity, transform;
  pointer-events: none; /* avoid clicks on hidden slides */
}

/* Visible slide */
.slide[aria-hidden="false"] {
  opacity: 1;
  z-index: 2;
  pointer-events: auto;
}

/* Navigation buttons */
.slide-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  font-size: 24px;
  padding: 10px 14px;
  cursor: pointer;
  z-index: 10;
  border-radius: 50%;
  transition: var(--transition);
}

.slide-btn:hover {
  background: rgba(10, 92, 255, 0.8);
  transform: translateY(-50%) scale(1.15);
  box-shadow: 0 0 20px rgba(10, 92, 255, 0.6);
}

/* Position des boutons */
.slide-btn.prev { left: 12px; }
.slide-btn.next { right: 12px; }

/* Dots / points */
.dots {
  position: absolute;
  bottom: 12px;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 8px;
  z-index: 10;
  pointer-events: auto;
}

.dot {
  width: 10px;
  height: 10px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}

.dot:hover { 
  transform: scale(1.3);
  background: rgba(255, 255, 255, 0.8);
}

.dot.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 12px rgba(10, 92, 255, 0.8);
  transform: scale(1.3);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .slideshow { height: 250px; }
  .slide-btn { font-size: 20px; padding: 8px 12px; }
}

/* =========================
   ANIMATIONS PROFESSIONNELLES
========================= */
@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 15px rgba(10, 92, 255, 0.3); }
  50% { box-shadow: 0 0 30px rgba(10, 92, 255, 0.6); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

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

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes slideLeft {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
/* Animation du titre Bienvenue */
.welcome-animation {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    
    /* Effet de dégradé animé sur le texte */
    background: linear-gradient(270deg, #0a5cff, #7c3aed, #0a5cff);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 1.2s forwards, gradientMove 4s linear infinite;
}

/* Apparition vers le haut */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mouvement du dégradé */
@keyframes gradientMove {
    to {
        background-position: 200% center;
    }
}

/* Nouvelles animations de révélation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    visibility: hidden;
}

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

/* Délai progressif pour les cartes dans la grille */
.service-card:nth-child(1) { transition-delay: 0.1s; }
.service-card:nth-child(2) { transition-delay: 0.2s; }
.service-card:nth-child(3) { transition-delay: 0.3s; }
.service-card:nth-child(4) { transition-delay: 0.4s; }

/* Effet de flottement continu sur les icônes au survol */
.service-card:hover .icon-wrapper {
    animation: floating 2s ease-in-out infinite;
}

@keyframes floating {
    0% { transform: translateY(0px) rotate(-5deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
    100% { transform: translateY(0px) rotate(-5deg); }
}

/* Animation d'entrée pour le Hero */
.hero h1, .hero p {
    animation: fadeInDown 1s ease forwards;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}