:root {
  --bg-primary: #0B0B0F;
  --bg-secondary: #13131A;
  --bg-card: #181822;
  --bg-card-hover: #1F1F2C;
  --accent: #D20A2E;
  --accent-hover: #F2133C;
  --accent-glow: rgba(210, 10, 46, 0.25);
  --text-primary: #F4F4F6;
  --text-secondary: #A1A1B5;
  --border-color: rgba(255, 255, 255, 0.08);
  --font-sans: 'Poppins', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 10%, rgba(210, 10, 46, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(210, 10, 46, 0.05) 0%, transparent 40%);
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 15, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -1px;
}

.logo .dot {
  color: var(--accent);
}

.nav-links {
  display: flex;
  list-style: none;
   justify-content: center;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

/* Main Container */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5.5rem 0;
}

/* Hero & Internship Banner */
.hero {
  padding-top: 6rem;
  padding-bottom: 5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.internship-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: rgba(210, 10, 46, 0.12);
  border: 1px solid rgba(210, 10, 46, 0.4);
  color: #FF5C77;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.75rem;
  box-shadow: 0 0 20px rgba(210, 10, 46, 0.15);
}

.pulse-dot {
  width: 9px;
  height: 9px;
  background-color: #22C55E;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero h1 .highlight {
  color: var(--accent);
  position: relative;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 2rem;
}

.about-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent);
  border-radius: 14px;
  padding: 1.75rem 2rem;
  max-width: 820px;
  margin-bottom: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.98rem;
}

.internship-callout {
  margin-top: 0.5rem;
  padding: 1.1rem 1.25rem;
  background: rgba(210, 10, 46, 0.08);
  border: 1px solid rgba(210, 10, 46, 0.28);
  border-radius: 10px;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.callout-icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.callout-text h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.callout-text p {
  font-size: 0.9rem;
  color: #D4D4E0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* Section Headers */
.section-header {
  margin-bottom: 3rem;
}

.section-tag {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.4rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Featured Projects Grid */
.featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.project-detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.project-detail-card:hover {
  border-color: rgba(210, 10, 46, 0.45);
}

/* Carousel & Media */
.carousel-container, .single-image-container {
  position: relative;
  background: #08080C;
  min-height: 320px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-wrapper {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.carousel-images {
  display: flex;
  height: 100%;
  transition: transform 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.carousel-images img, .single-image-container img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  max-height: 400px;
  object-fit: cover;
  flex-shrink: 0;
  display: block;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(11, 11, 15, 0.75);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  transition: all 0.2s ease;
}

.carousel-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.carousel-btn.prev { left: 12px; }
.carousel-btn.next { right: 12px; }

.carousel-indicators {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  z-index: 5;
  background: rgba(11, 11, 15, 0.6);
  padding: 5px 10px;
  border-radius: 999px;
}

.indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.indicator-dot.active {
  background: var(--accent);
  width: 20px;
  border-radius: 4px;
}

/* Project Content */
.project-detail-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.project-detail-header h3 {
  font-size: 1.55rem;
  font-weight: 700;
}

.project-year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  white-space: nowrap;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.25rem 0.7rem;
  border-radius: 6px;
  background: rgba(210, 10, 46, 0.14);
  color: #FF6B84;
  border: 1px solid rgba(210, 10, 46, 0.3);
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

.project-link:hover {
  color: var(--accent);
}

/* Complementary Projects Grid */
.other-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1.75rem;
}

.compact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.compact-card:hover {
  transform: translateY(-5px);
  border-color: rgba(210, 10, 46, 0.45);
}

.compact-img {
  height: 190px;
  background: #08080C;
  overflow: hidden;
}

.compact-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.compact-card:hover .compact-img img {
  transform: scale(1.04);
}

.compact-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.compact-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.65rem;
}

.compact-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.compact-body .project-description {
  font-size: 0.9rem;
  flex-grow: 1;
  margin-bottom: 1.25rem;
}

/* Style de la zone visuelle des projets complémentaires */
.compact-img {
  height: 200px;
  background: radial-gradient(circle at center, rgba(16, 185, 129, 0.15) 0%, #090B0E 70%);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Si l'image est absente ou ne charge pas, on affiche un design textuel élégant au centre */
.compact-img img:not([src]), 
.compact-img img[src=""] {
  display: none;
}

/* Effet graphique de secours thématique (similaire à ta capture) */
.compact-img::before {
  content: attr(data-project-title);
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  z-index: 1;
  padding: 0 1.5rem;
  text-align: center;
}

.compact-img::after {
  content: attr(data-project-sub);
  position: absolute;
  margin-top: 3.2rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--text-secondary);
  z-index: 1;
  letter-spacing: 0.5px;
}

.compact-img img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.compact-card:hover .compact-img img {
  transform: scale(1.04);
}

/* Skills Section with Internal Liquid Fill */
.skills-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.skill-category h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.skill-category h3::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 2px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  list-style: none;
}

.skill-item {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.05rem 1.2rem;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.skill-item:hover {
  border-color: rgba(210, 10, 46, 0.65);
  transform: translateY(-3px);
  box-shadow: 0 8px 22px rgba(210, 10, 46, 0.16);
}

/* Liquid Fill Layer (Left to Right) */
.liquid-fill {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--level, 0%);
  background: linear-gradient(
    90deg,
    rgba(210, 10, 46, 0.14) 0%,
    rgba(210, 10, 46, 0.28) 75%,
    rgba(242, 19, 60, 0.42) 100%
  );
  z-index: 1;
  pointer-events: none;
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.skills-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

.skill-category {
  background: rgba(24, 24, 34, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  padding: 1.5rem 1.75rem;
  backdrop-filter: blur(8px);
}

/* Couleurs d'accentuation subtiles par catégorie */
.skill-category[data-cat="languages"] {
  --cat-color: #F2133C;
  --cat-color-2: #FF6B4A;
  --cat-glow: rgba(242, 19, 60, 0.35);
}

.skill-category[data-cat="engines"] {
  --cat-color: #3B82F6;
  --cat-color-2: #06B6D4;
  --cat-glow: rgba(59, 130, 246, 0.35);
}

.skill-category[data-cat="tools"] {
  --cat-color: #A855F7;
  --cat-color-2: #EC4899;
  --cat-glow: rgba(168, 85, 247, 0.35);
}

.skill-category h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skill-category h3::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  background: linear-gradient(135deg, var(--cat-color, var(--accent)), var(--cat-color-2, #FF5C77));
  border-radius: 3px;
  box-shadow: 0 0 10px var(--cat-glow, var(--accent-glow));
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
  gap: 0.9rem;
  list-style: none;
}

.skill-item {
  position: relative;
  overflow: hidden;
  background: linear-gradient(145deg, #161620 0%, #101017 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 0.85rem 1.05rem;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.25s ease,
              box-shadow 0.25s ease;
}

/* Reflet vitré subtil en haut de la carte */
.skill-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 45%);
  z-index: 2;
  pointer-events: none;
}

.skill-item:hover {
  border-color: var(--cat-color, var(--accent));
  transform: translateY(-3px) scale(1.01);
  box-shadow: 0 10px 24px -6px var(--cat-glow, var(--accent-glow));
}

/* Jauge liquide améliorée */
.liquid-fill {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--level, 0%);
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--cat-color, var(--accent)) 16%, transparent) 0%,
    color-mix(in srgb, var(--cat-color, var(--accent)) 32%, transparent) 70%,
    color-mix(in srgb, var(--cat-color-2, #FF5C77) 48%, transparent) 100%
  );
  border-right: 2px solid var(--cat-color-2, #FF5C77);
  box-shadow: 4px 0 16px var(--cat-glow, var(--accent-glow));
  z-index: 1;
  pointer-events: none;
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1), filter 0.3s ease;
}

.skill-item:hover .liquid-fill {
  filter: brightness(1.22);
}

.skill-content {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Conteneur d'icône pour homogénéiser la taille et le contraste */
.skill-icon-box {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: rgba(11, 11, 15, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.skill-item:hover .skill-icon-box {
  transform: scale(1.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.skill-item img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

/* Correction pour Unity et GitHub (bien blancs sur fond sombre) */
img.invert-dark {
  filter: brightness(0) invert(1) !important;
}

.skill-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 0.5rem;
}

.skill-name {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-primary);
  letter-spacing: 0.2px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.75);
}

.skill-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-primary);
  background: rgba(11, 11, 15, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  opacity: 0.85;
  transition: opacity 0.2s ease, border-color 0.2s ease;
}

.skill-item:hover .skill-badge {
  opacity: 1;
  border-color: var(--cat-color-2, var(--accent));
}

/* Contact Section */
.contact-box {
  background: linear-gradient(145deg, var(--bg-card) 0%, #121218 100%);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3.5rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-box::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.contact-box h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 1rem;
}

.contact-desc {
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 2.25rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}

.contact-pill:hover {
  border-color: var(--accent);
  background: rgba(210, 10, 46, 0.12);
  transform: translateY(-2px);
}

.email-pill {
  background: var(--accent);
  border-color: var(--accent);
}

.email-pill:hover {
  background: var(--accent-hover);
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

/* Responsive */
@media (max-width: 900px) {
  .project-detail-card {
    grid-template-columns: 1fr;
  }

  .carousel-images img, .single-image-container img {
    max-height: 280px;
  }
}

@media (max-width: 640px) {
  nav {
    padding: 1rem;
  }

  .nav-links {
    display: none;
  }

  main {
    padding: 0 1.25rem;
  }

  section {
    padding: 3.5rem 0;
  }

  .contact-box {
    padding: 2.5rem 1.25rem;
  }
}