/* ========================================
   CSS VARIABLES & RESET
   ======================================== */

:root {
  /* Colors */
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #7ecfff;
  --dark-bg: #1f2638;
  --dark-surface: rgba(24,28,43,0.92);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --text-primary: #f5f6fa;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-light: rgba(255, 255, 255, 0.9);
  --text-muted: rgba(255, 255, 255, 0.8);

  /* Gradients */
  --primary-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  --hero-gradient: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  --hero-radial: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
                  radial-gradient(circle at 80% 20%, rgba(255,255,255,0.05) 0%, transparent 50%);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-4xl: 6rem;

  /* Typography */
  --font-size-xs: 0.8rem;
  --font-size-sm: 0.9rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.1rem;
  --font-size-xl: 1.2rem;
  --font-size-2xl: 1.8rem;
  --font-size-3xl: 2.5rem;

  /* Effects */
  --blur-sm: blur(10px);
  --blur-md: blur(16px);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.2);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.3);
  --transition: all 0.3s ease;
}

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

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  height: 100%;
  font-family: 'Roboto', 'Inter', system-ui, Arial, sans-serif;
  background: linear-gradient(to bottom, var(--dark-surface) 0%, var(--dark-bg) 90vh) no-repeat, var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
}

/* ========================================
   LAYOUT COMPONENTS
   ======================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  z-index: 100;
  background: var(--dark-surface);
  backdrop-filter: var(--blur-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 2.5rem;
}

.logo-link {
  position: absolute;
  left: 2.5rem;
  top: 0.7rem;
  display: flex;
  align-items: center;
}

.logo-header {
  height: 2.2em;
}

.header nav {
  display: flex;
  gap: 2.5rem;
  justify-content: center;
}

.header nav a {
  color: var(--text-primary);
  font-weight: 500;
  text-decoration: none;
  font-size: var(--font-size-lg);
  transition: var(--transition);
  padding: 0.2em 0.5em;
  border-radius: 0.5em;
  letter-spacing: 0.01em;
}

.header nav a:hover {
  background: #2e365a;
  color: #ffffff;
}

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

.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: 
    url('./assets/hero-background.svg') center/cover no-repeat,
    var(--hero-gradient);
  padding: 6rem var(--space-lg) var(--space-2xl) var(--space-lg);
  margin: var(--space-2xl) 0 0 0;
  overflow: hidden;
  gap: var(--space-2xl);
  width: 100%;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-radial);
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  flex: 1;
  max-width: 600px;
  margin: 0 auto;
}

.hero-visual {
  position: relative;
  z-index: 2;
  flex: 1;
  max-width: 550px;
  justify-content: center;
  align-items: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--space-sm);
  background: linear-gradient(45deg, #fff, #a8d8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subline {
  font-size: 1.3rem;
  color: var(--text-light);
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.hero-stats {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ========================================
   BADGES & HIGHLIGHTS
   ======================================== */

.hero-badge,
.badge,
.cta-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  color: #fff;
  padding: var(--space-xs) var(--space-sm);
  border-radius: 2rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-md);
  backdrop-filter: var(--blur-sm);
  border: 1px solid rgba(255,255,255,0.2);
}

.badge {
  background: var(--primary-gradient);
  margin-bottom: var(--space-sm);
  padding: 8px 16px;
}

.cta-badge {
  background: rgba(255,255,255,0.2);
  margin-bottom: var(--space-sm);
}

.highlight {
  color: var(--accent-color);
  font-weight: 600;
}

.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ========================================
   STATISTICS & METRICS
   ======================================== */

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-color);
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.hero-stats.modern,
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
  padding: var(--space-md);
  background: var(--glass-bg);
  border-radius: 12px;
  backdrop-filter: var(--blur-sm);
}

.success-metrics,
.success-metrics-inline {
  display: grid;
  gap: var(--space-md);
}

.success-metrics-inline {
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: var(--space-lg);
}

.metric {
  text-align: center;
  padding: var(--space-md);
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  backdrop-filter: var(--blur-sm);
}

.metric-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: white;
}

.metric-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ========================================
   BUTTONS & INTERACTIVE ELEMENTS
   ======================================== */

.btn-primary {
  display: inline-block;
  background: #ffffff;
  color: #162447;
  border: none;
  border-radius: 0.7em;
  padding: 1em 2em;
  font-weight: bold;
  font-size: var(--font-size-lg);
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  margin: auto;
}

.btn-primary:hover {
  background: #f8f9fa;
  color: #162447;
  transform: translateY(-2px) scale(1.04);
}

.btn-primary.large {
  font-size: var(--font-size-lg);
  padding: 16px 32px;
  margin-bottom: var(--space-sm);
}

.btn-secondary {
  display: inline-block;
  padding: 12px 24px;
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  margin-left: var(--space-sm);
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: white;
}

.hero-cta .btn-primary,
.hero-cta .btn-secondary {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 0.7rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: var(--space-sm);
  margin: 0 auto;
}

.hero-cta .btn-primary {
  background: #fff;
  color: #1e3c72;
  box-shadow: 0 4px 20px rgba(255,255,255,0.3);
}

.hero-cta .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255,255,255,0.4);
}

.hero-cta .btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}

.hero-cta .btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.5);
}

.btn-tech-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem var(--space-md);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  color: white;
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: var(--transition);
  backdrop-filter: var(--blur-sm);
  cursor: pointer;
}

.btn-tech-link:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.btn-tech-link::after {
  content: '→';
  margin-left: var(--space-xs);
  transition: transform 0.3s ease;
}

.btn-tech-link:hover::after {
  transform: translateX(3px);
}

/* ========================================
   CODE SNIPPET
   ======================================== */

.code-snippet {
  background: rgba(0,0,0,0.4);
  border-radius: var(--space-sm);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  backdrop-filter: var(--blur-sm);
  border: 1px solid var(--glass-border);
  width: 400px;
  max-width: 400px;
}

.code-header {
  background: rgba(255,255,255,0.1);
  padding: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.code-dots {
  display: flex;
  gap: var(--space-xs);
}

.code-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ff5f57;
}

.code-dots span:nth-child(2) { background: #ffbd2e; }
.code-dots span:nth-child(3) { background: #28ca42; }

.code-title {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.code-content {
  padding: var(--space-md);
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.6;
  color: #fff;
}

.keyword { color: #ff79c6; }
.class-name { color: #8be9fd; }
.method { color: #50fa7b; }
.variable { color: #f8f8f2; }
.string { color: #f1fa8c; }

/* ========================================
   SECTIONS & LAYOUTS
   ======================================== */

section h2 {
  color: #ffffff;
  font-size: 2em;
  margin-bottom: 1.2em;
  font-weight: 700;
}

section.hero {
  margin: 0;
  max-width: none;
  padding: 6rem var(--space-lg) var(--space-2xl) var(--space-lg);
}

.intro-section,
.benefits-grid-section,
.competences-section,
.final-cta-section {
  margin: 0;
  padding: var(--space-2xl) 0;
  width: 100%;
}

.intro-section {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

.competences-section {
  background: rgba(0, 0, 0, 0.2);
}

.final-cta-section {
  background: var(--primary-gradient);
}

.intro-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title.centered {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.intro-text {
  font-size: var(--font-size-xl);
  line-height: 1.6;
  color: var(--text-light);
  margin: 0;
}

/* ========================================
   CARDS & GRIDS
   ======================================== */

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

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

.card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,0.08);
  border-color: rgba(102, 126, 234, 0.4);
  box-shadow: 0 10px 40px rgba(102, 126, 234, 0.2);
}

.grid-section {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.grid-section.services-grid {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-section.tech-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Service Cards */
.card.service-card {
  padding: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  backdrop-filter: var(--blur-sm);
}

.card.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.card.service-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  font-size: 2.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.card-content {
  flex: 1;
}

.card-title {
  color: white;
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.card-description {
  color: var(--text-light);
  line-height: 1.6;
  margin: 0;
}

/* Tech Cards */
.card.tech-card {
  display: flex;
  flex-direction: column;
}

.card-tech-title {
  color: white;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tech-visual {
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: var(--space-md);
}

.tech-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(118, 75, 162, 0.4) 100%);
  backdrop-filter: blur(1px);
}

.tech-badge {
  position: relative;
  z-index: 2;
  background: rgba(255,255,255,0.2);
  backdrop-filter: var(--blur-sm);
  border-radius: 12px;
  padding: 0.8rem;
  color: white;
  transition: var(--transition);
}

.card.tech-card:hover .tech-badge {
  background: rgba(255,255,255,0.3);
  transform: scale(1.1);
}

.tech-content {
  padding: var(--space-lg);
}

.tech-cta {
  margin-top: var(--space-md);
  display: flex;
  justify-content: flex-start;
}

/* Benefits Grid */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.benefit-card {
  background: rgba(255,255,255,0.03);
  border-radius: var(--space-sm);
  padding: 2em 1.5em;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--glass-border);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(255,255,255,0.1);
}

.benefit-card.modern {
  background: var(--glass-bg);
  backdrop-filter: var(--blur-sm);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  transition: var(--transition);
}

.benefit-card.modern:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,0.08);
}

.benefit-card h3 {
  color: #ffffff;
  font-size: 1.3em;
  font-weight: 600;
  margin-bottom: 1em;
}

.benefit-card p {
  color: var(--text-primary);
  font-size: var(--space-sm);
  line-height: 1.6;
  margin: 0;
}

.benefit-icon,
.benefit-card.modern .benefit-icon {
  font-size: 2.5em;
  margin-bottom: 1em;
  display: block;
}

.benefit-card.modern .benefit-icon {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
}

/* ========================================
   COMPETENCES SECTION
   ======================================== */

.competences-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.competences-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.competence-group {
  background: var(--glass-bg);
  padding: var(--space-lg);
  border-radius: 12px;
  border: 1px solid var(--glass-border);
}

.competence-title {
  color: var(--primary-color);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-xl);
}

.competence-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tag {
  background: var(--primary-gradient);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ========================================
   CTA SECTIONS
   ======================================== */

.cta-section {
  background: linear-gradient(135deg, rgba(126, 207, 255, 0.1) 0%, rgba(255,255,255,0.05) 100%);
  border-radius: 1.2em;
  padding: 3em 2em;
  text-align: center;
  border: 1.5px solid rgba(126, 207, 255, 0.3);
}

.cta-content h2 {
  color: #ffffff;
  font-size: 2em;
  margin-bottom: 1.2em;
  font-weight: 700;
}

.cta-content p {
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  line-height: 1.6;
  margin-bottom: 2em;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-content .btn-primary {
  font-size: var(--font-size-lg);
  padding: 1.2em 2.5em;
  display: inline-block;
  margin-top: 0.5em;
}

.cta-modern {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: flex-start;
}

.cta-content-modern {
  max-width: none;
}

.cta-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-sm);
}

.cta-description {
  font-size: var(--font-size-lg);
  color: var(--text-light);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.cta-info {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.info-item {
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

/* ========================================
   EXPERIENCE ACCORDION
   ======================================== */

.xp-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 900px;
  margin: 0 auto;
}

.xp-card-accordion {
  background: var(--glass-bg);
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  overflow: hidden;
  transition: var(--transition);
}

.xp-card-accordion:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
}

.xp-card-accordion.active {
  background: rgba(255,255,255,0.08);
  border-color: rgba(102, 126, 234, 0.4);
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.1);
}

.xp-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: var(--transition);
}

.xp-header:hover {
  background: var(--glass-bg);
}

.xp-title-wrapper {
  flex: 1;
}

.xp-title {
  color: #ffffff;
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0 0 var(--space-xs) 0;
}

.xp-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.xp-company {
  color: var(--accent-color);
  font-weight: 600;
  font-size: var(--space-sm);
}

.xp-separator {
  color: rgba(255,255,255,0.4);
  font-weight: bold;
}

.xp-period {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
}

.xp-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs);
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: var(--transition);
}

.xp-toggle svg {
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.xp-header:hover .xp-toggle {
  background: rgba(255,255,255,0.2);
}

.xp-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.xp-description {
  padding: 0 var(--space-lg) var(--space-lg) var(--space-lg);
  color: var(--text-primary);
  line-height: 1.6;
}

.xp-description strong {
  color: #ffffff;
  font-weight: 600;
}

/* ========================================
   FORMS & CONTACT
   ======================================== */

.contact p {
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  margin-bottom: 2em;
}

.contact-card {
  background: var(--glass-bg);
  border-radius: var(--space-sm);
  padding: 1.5em 1.2em;
  box-shadow: var(--shadow-sm);
}

form {
  display: flex;
  flex-direction: column;
  gap: 1.2em;
  max-width: 600px;
  margin: 0 auto 1em auto;
  background: transparent;
  border-radius: var(--space-sm);
  box-shadow: none;
  padding: 2em 1.5em 0 1.5em;
}

form input,
form textarea {
  border-radius: 0.7em;
  border: 1px solid #2e365a;
  padding: 0.7em;
  font-size: var(--space-sm);
  background: #232a47;
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  outline: none;
}

form input:focus,
form textarea:focus {
  border-color: #ffffff;
  background: #232a47;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

.contact-form-wrapper {
  padding: 2rem var(--space-md);
}

.contact-form-wrapper input,
.contact-form-wrapper textarea {
  font-size: var(--space-sm);
  padding: 0.8rem;
}

.contact-form-wrapper input:focus,
.contact-form-wrapper textarea:focus {
  outline: none;
  border-color: white;
  box-shadow: 0 0 0 2px rgba(255,255,255,0.3);
}

.contact-form-wrapper .contact-infos a:hover,
.contact-form-wrapper button:hover,
.direct-contact a:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.contact-infos {
  color: var(--accent-color);
  font-size: var(--space-sm);
  margin-top: var(--space-md);
  text-align: center;
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.contact-infos a {
  color: var(--accent-color);
  text-decoration: underline;
  transition: var(--transition);
}

.contact-infos a:hover {
  color: #ffffff;
}

/* ========================================
   SERVICE PAGES
   ======================================== */

.service-intro {
  background: var(--glass-bg);
  border-radius: 1.2em;
  padding: 2.5em 2em;
  margin-bottom: 3em;
  border: 1.5px solid #2e365a;
}

.service-intro h2 {
  color: #ffffff;
  font-size: 2.2em;
  margin-bottom: 1.2em;
  font-weight: 700;
  text-align: center;
}

.service-intro p {
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.service-intro p:last-child {
  margin-bottom: 0;
}

.benefits {
  background: var(--glass-bg);
  border-radius: 1.2em;
  padding: 2.5em 2em;
  margin-bottom: 3em;
  border: 1.5px solid #2e365a;
}

.benefits h2 {
  color: #ffffff;
  font-size: 2em;
  margin-bottom: 2em;
  font-weight: 700;
  text-align: center;
}

.benefits .benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2em;
}

.benefits .benefit-icon {
  font-size: 2.5em;
  margin-bottom: 1em;
  display: block;
}

/* ========================================
   UTILITY COMPONENTS
   ======================================== */

.projets-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2em;
}

.projets-placeholder img {
  width: 100%;
  max-width: 500px;
  border-radius: var(--space-sm);
  box-shadow: var(--shadow-sm);
  opacity: 0.8;
}

.hero-visual-wrapper {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
}

.visual-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  padding: var(--space-md);
}

.tech-stack {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.tech-item {
  background: rgba(255,255,255,0.9);
  color: #333;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* ========================================
   FOOTER & BACK TO TOP
   ======================================== */

.footer {
  background: var(--dark-surface);
  backdrop-filter: var(--blur-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg, 
    transparent 0%, 
    var(--primary-color) 50%, 
    transparent 100%
  );
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-4xl) var(--space-lg) var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-section {
  color: var(--text-secondary);
}

.footer-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: white;
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.footer-logo {
  flex-shrink: 0;
}

.footer-section-title {
  color: var(--primary-color);
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-md);
  position: relative;
}

.footer-section-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 2rem;
  height: 2px;
  background: var(--primary-gradient);
  border-radius: 1px;
}

.footer-description {
  line-height: 1.6;
  margin-bottom: var(--space-md);
  color: var(--text-muted);
}

.footer-contact {
  margin-top: var(--space-md);
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
}

.footer-contact a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.footer-contact a:hover {
  color: white;
  text-decoration: underline;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: var(--transition);
}

.footer-nav a:hover {
  color: var(--primary-color);
  transform: translateX(4px);
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-list li {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
  position: relative;
  padding-left: var(--space-sm);
}

.footer-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-size: 0.8em;
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
}

.footer-bottom-content {
  text-align: center;
  color: var(--text-muted);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--text-secondary);
}

.footer-meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin: 0;
}

.footer-meta a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition);
}

.footer-meta a:hover {
  color: var(--primary-color);
}

/* Footer responsive design */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-xl);
  }
  
  .footer-section:first-child {
    grid-column: 1 / -1;
    text-align: center;
    margin-bottom: var(--space-lg);
  }
}

@media (max-width: 600px) {
  .footer-content {
    padding: var(--space-2xl) var(--space-md) var(--space-md);
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    text-align: center;
  }
  
  .footer-section:first-child {
    grid-column: 1;
    margin-bottom: 0;
  }
  
  .footer-title {
    justify-content: center;
  }
  
  .footer-section-title::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .footer-contact p {
    justify-content: center;
  }
  
  .footer-social {
    justify-content: center;
  }
  
  .footer-nav a:hover {
    transform: none;
  }
  
  .footer-bottom-content {
    font-size: var(--font-size-xs);
  }
}

@media (max-width: 480px) {
  .footer-content {
    padding: var(--space-xl) var(--space-sm) var(--space-sm);
  }
  
  .footer-grid {
    gap: var(--space-md);
  }
  
  .footer-social a {
    width: 36px;
    height: 36px;
  }
}

#back-to-top {
  position: fixed;
  left: var(--space-lg);
  bottom: var(--space-lg);
  z-index: 200;
  background: #ffffff;
  color: #162447;
  border: none;
  border-radius: 50%;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

#back-to-top:hover {
  background: #f8f9fa;
  color: #162447;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

/* Large screens optimizations */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    gap: var(--space-lg);
    margin: var(--space-2xl) 0 0 0;
    width: 100%;
  }

  section.hero {
    padding: var(--space-2xl) var(--space-lg);
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-stats {
    justify-content: center;
    gap: var(--space-md);
  }

  .hero-visual {
    order: -1;
    max-width: 350px;
  }

  .code-snippet {
    display: none;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
  }

  .hero-cta .btn-primary,
  .hero-cta .btn-secondary {
    width: 100%;
    max-width: 280px;
    text-align: center;
    padding: 1.2rem var(--space-md);
  }

  .cta-modern {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    text-align: center;
  }
}

/* Medium screens optimizations */
@media (max-width: 768px) {
  .hero {
    padding: var(--space-xl) var(--space-md);
    min-height: 70vh;
  }

  .hero h1 {
    font-size: 2.2rem;
    line-height: 1.2;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-subline {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
  }

  .hero-stats {
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
  }

  .stat-number {
    font-size: 1.6rem;
  }

  .stat-label {
    font-size: 0.85rem;
  }

  .intro-section,
  .benefits-grid-section,
  .competences-section,
  .final-cta-section {
    padding: var(--space-xl) 0;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-sm);
  }

  .intro-text {
    font-size: var(--space-sm);
    line-height: 1.6;
  }

  .grid-section.services-grid,
  .grid-section.tech-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .benefits-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .benefit-card.modern {
    padding: var(--space-md);
    text-align: center;
  }

  .benefit-card.modern .benefit-icon {
    font-size: 2rem;
    margin-bottom: 0.8rem;
  }

  .benefit-card.modern h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 0.8rem;
  }

  .competences-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .competence-group {
    text-align: center;
  }

  .competence-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
  }

  .competence-tags {
    justify-content: center;
    gap: var(--space-xs);
  }

  .tag {
    font-size: var(--font-size-xs);
    padding: 0.4rem 0.8rem;
  }

  .cta-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-sm);
  }

  .cta-description {
    font-size: var(--space-sm);
    line-height: 1.6;
    margin-bottom: var(--space-md);
  }

  .success-metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .success-metrics-inline {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .metric-value {
    font-size: var(--space-md);
  }

  .metric-label {
    font-size: var(--font-size-xs);
  }

  .card.service-card {
    padding: var(--space-md);
    text-align: center;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
  }

  .card-title {
    font-size: var(--font-size-xl);
    margin-bottom: 0.8rem;
  }

  .tech-visual {
    height: 200px;
  }

  .tech-content {
    padding: var(--space-md);
  }

  .card-tech-title {
    font-size: var(--font-size-xl);
    margin-bottom: 0.8rem;
  }

  .contact-form-wrapper {
    padding: var(--space-lg) var(--space-md);
  }

  .contact-form-wrapper input,
  .contact-form-wrapper textarea {
    font-size: var(--space-sm);
    padding: 0.8rem;
  }

  .xp-header {
    padding: 1.2rem var(--space-md);
  }

  .xp-title {
    font-size: var(--font-size-lg);
  }

  .xp-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }

  .xp-separator {
    display: none;
  }

  .xp-description {
    padding: 0 var(--space-md) var(--space-md) var(--space-md);
    font-size: 0.95rem;
  }

  .service-intro,
  .benefits,
  .cta-section {
    padding: 2em var(--space-md);
  }

  .service-intro h2,
  .benefits h2,
  .cta-content h2 {
    font-size: var(--font-size-2xl);
  }

  #back-to-top {
    left: var(--space-sm);
    bottom: var(--space-sm);
    width: 48px;
    height: 48px;
    font-size: 1.5em;
  }
}

/* Tablet navigation */
@media (max-width: 700px) {
  .header {
    padding: 0.7rem 1.2rem;
  }

  .logo-link {
    position: absolute;
    left: 1.2rem;
    top: 0.7rem;
    display: flex;
    align-items: center;
  }

  .header nav {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    width: 100%;
    font-size: var(--font-size-sm);
  }

  .header nav a {
    padding: 0.2em 0.4em;
    font-size: 0.95em;
    white-space: nowrap;
  }

  main {
    padding: 0 0.2rem;
  }
}

/* Small mobile screens */
@media (max-width: 480px) {
  .header {
    padding: var(--space-xs) var(--space-sm);
  }

  .logo-link {
    left: var(--space-sm);
    top: var(--space-xs);
  }

  .header nav {
    gap: var(--space-sm);
    font-size: 0.85rem;
  }

  .header nav a {
    padding: 0.2em 0.3em;
    font-size: var(--font-size-sm);
  }

  .hero {
    padding: 2.5rem var(--space-sm);
    margin-top: 3.5rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-title {
    font-size: var(--space-md);
  }

  .hero-subline {
    font-size: var(--space-sm);
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
  }

  .stat {
    min-width: 120px;
  }

  .hero-cta .btn-primary,
  .hero-cta .btn-secondary {
    max-width: 260px;
    padding: var(--space-sm) 1.2rem;
    font-size: 0.95rem;
  }

  .container {
    padding: 0 var(--space-sm);
  }

  .section-title {
    font-size: 1.6rem;
  }

  .benefit-card.modern,
  .card.service-card,
  .tech-content {
    padding: 1.2rem;
  }

  .success-metrics {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .cta-title {
    font-size: 1.6rem;
  }
}