:root {
  --primary: #6750a4;
  --primary-container: #eaddff;
  --on-primary: #fff;
  --surface: #fff;
  --surface-container: #f6f2fb;
  --outline: #d0cce0;
  --on-surface: #1d1b20;
  --tag-bg: #ece6f0;
  --chip-bg: #ebe0f5;
  --transition: 0.3s ease;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --ripple: rgba(103, 80, 164, 0.3);
}

body.dark {
  --primary: #d0bcff;
  --primary-container: #4f378b;
  --on-primary: #1c1b1f;
  --surface: #1c1b1f;
  --surface-container: #2b2930;
  --outline: #3b3942;
  --on-surface: #fff;
  --tag-bg: #3a2f53;
  --chip-bg: #4b3b6b;
  --ripple: rgba(208, 188, 255, 0.2);
}

body {
  font-family: "Roboto", sans-serif;
  background: var(--surface-container);
  color: var(--on-surface);
  margin: 0;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

.app-bar {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--surface);
  box-shadow: var(--shadow);
  z-index: 100;
  transition: transform 0.4s ease;
}

.app-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* === Toggle === */
.toggle {
  width: 36px;
  height: 36px;
  position: relative;
  cursor: pointer;
}

.toggle input { display: none; }

.toggle:hover .slider {
  transform: scale(1.12);
  box-shadow: 0 4px 16px rgba(103,80,164,0.12);
}

.slider {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--outline);
  background: var(--surface-container);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  overflow: hidden;
  position: relative;
}

body.dark .slider { background: var(--surface); }

.icon {
  width: 20px;
  height: 20px;
  position: absolute;
  transition: all 0.3s ease;
  filter: brightness(0.3);
}

body.dark .icon { filter: brightness(1); }

.sun { opacity: 0; transform: translateY(20px); }
body.dark .sun { opacity: 1; transform: translateY(0); }
body.dark .moon { opacity: 0; transform: translateY(-20px); }

/* === Navigation === */
.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--on-surface);
  font-weight: 500;
  position: relative;
  padding: 0.3rem 0.5rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition);
}

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

/* === Buttons === */
.btn-filled, .btn-tonal {
  border: none;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-filled {
  background: var(--primary);
  color: var(--on-primary);
  padding: 0 1.2rem;
}

.btn-filled:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.2); transform: translateY(-2px); }

.btn-tonal {
  background: var(--primary-container);
  color: var(--primary);
  padding: 0 1.2rem;
}

.btn-tonal:hover { box-shadow: 0 4px 11px rgba(0,0,0,0.15); transform: translateY(-2px); }

/* === Hero === */
.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 8rem 0 4rem;
  gap: 2rem;
}

.hero-text { flex: 1 1 400px; }

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

.hero-text span { color: var(--primary); }

.subtext { margin: 1rem 0 2rem; opacity: 0.8; }

.hero-img {
  max-width: 320px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}

.hero-img:hover { transform: scale(1.05); }

/* === Projects === */
.projects { padding: 4rem 0; text-align: center; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover { transform: translateY(-6px) scale(1.02); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }

.card-image {
  height: 140px;
  background: var(--outline);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.tags span {
  background: var(--tag-bg);
  color: var(--on-surface);
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  font-size: 0.8rem;
  margin-right: 0.4rem;
}

/* === Skills === */
.skills { padding: 4rem 0; text-align: center; }

.chips span {
  background: var(--chip-bg);
  color: var(--on-surface);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  margin: 0.4rem;
  display: inline-block;
  transition: var(--transition);
}

.chips span:hover { background: var(--primary-container); transform: scale(1.05); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.skills-card {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.skills-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.skills-card h3 {
  color: var(--primary);
  margin-bottom: 1rem;
}

.skills-card .chips span {
  display: inline-block;
  background: var(--chip-bg);
  color: var(--on-surface);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  margin: 0.3rem 0.4rem;
  font-size: 0.85rem;
  transition: var(--transition);
}

.skills-card .chips span:hover {
  background: var(--primary-container);
  transform: scale(1.05);
}

/* === About === */
.about {
  text-align: center;
  padding: 4rem 0;
  background: var(--surface);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.about .btn-filled {
  margin-top: 2rem;
  align-self: center;
}

/* === Footer === */
.footer {
  background: var(--surface);
  padding: 2rem 1rem;
  text-align: center;
  box-shadow: var(--shadow);
}

/* === Responsive === */
@media (max-width: 768px) {
  .app-bar-inner { flex-direction: column; gap: 0.5rem; height: auto; }
  .nav-links { flex-wrap: wrap; }
}

/* === Fade-in & Ripple === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s, transform 0.6s;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}

/* === Bouton Télécharger CV === */
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--primary-container);
  color: var(--primary);
  font-weight: 500;
  border: none;
  border-radius: 999px;
  padding: 0.7rem 1.4rem;
  text-decoration: none;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.btn-download .icon-download {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  filter: brightness(0.3);
}

body.dark .btn-download .icon-download { filter: brightness(1); }

.btn-download:hover {
  background: color-mix(in srgb, var(--primary-container) 85%, var(--primary) 15%);
  box-shadow: 0 6px 20px rgba(103, 80, 164, 0.25);
  transform: translateY(-3px);
  color: var(--primary);
}

body.dark .btn-download:hover {
  background: color-mix(in srgb, var(--primary-container) 75%, var(--primary) 25%);
  color: var(--on-primary);
}

.btn-download:hover .icon-download {
  transform: translateY(-2px) rotate(-10deg);
}

.btn-download::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  width: 100px;
  height: 100px;
  background: var(--primary);
  opacity: 0;
  transform: scale(0);
  transition: transform 0.5s ease, opacity 0.6s ease;
  pointer-events: none;
}

.btn-download:active::after {
  transform: scale(3);
  opacity: 0.25;
  transition: 0s;
}

.btn-download:active { transform: scale(0.97); }

/* === Menu latéral === */
.side-menu {
  position: fixed;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 200;
  opacity: 1;
  transition: opacity 0.5s ease, transform 0.4s ease;
}

.side-menu.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(-20px);
}

/* === Gélules === */
.pill {
  background: var(--surface);
  box-shadow: var(--shadow);
  border-radius: 999px;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: background var(--transition), transform var(--transition);
}

.pill:hover { transform: translateY(-2px); }

.nav-pill { gap: 0.7rem; }

.pill a img {
  width: 24px;
  height: 24px;
  filter: brightness(0.3);
  transition: filter 0.3s, transform 0.2s;
}

body.dark .pill a img { filter: brightness(1); }

.pill a:hover img { transform: scale(1.1); }

/* === Labels (tooltips) === */
.tooltip {
  position: relative;
}

/* === Correction des labels du menu latéral === */
.tooltip::after {
  content: attr(data-label);
  position: absolute;
  left: 130%;
  top: 50%;
  transform: translateY(-50%);
  margin-left: 0.5rem; /* 👈 ajoute un léger espace (8px environ) */
  background: none;
  color: var(--on-surface, #222);
  font-weight: 500;
  padding: 0;
  border-radius: 0;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  box-shadow: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}



/* Quand les labels sont visibles */
.tooltip.show-label::after {
  opacity: 1;
  transform: translateY(-50%) translateX(6px);
}

/* Thème sombre */
body.dark .tooltip::after {
  background: none;
  color: #f0f0f0;
}



/* Responsive : cacher sur mobile */
@media (max-width: 768px) {
  .side-menu { display: none; }
}