.audio-card h3 {
  font-size: 1.1rem;
  color: var(--text-primary);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --bg-color: #0a0a0a;
  --surface-primary: rgba(255, 255, 255, 0.05);
  --surface-secondary: rgba(255, 255, 255, 0.08);
  --surface-border: rgba(255, 255, 255, 0.12);
  --surface-border-soft: rgba(255, 255, 255, 0.1);
  --surface-border-strong: rgba(255, 255, 255, 0.4);
  --surface-elevated: rgba(30, 30, 45, 0.78);
  --surface-elevated-border: rgba(255, 255, 255, 0.12);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.72);
  --text-muted: rgba(255, 255, 255, 0.6);
  --text-subdued: #888888;
  --text-subtle: #666666;
  --accent: #82c2f7;
  --accent-strong: #b5dffe;
  --nav-bg: rgba(255, 255, 255, 0.05);
  --nav-border: rgba(255, 255, 255, 0.12);
  --nav-btn-bg: rgba(255, 255, 255, 0.08);
  --nav-btn-hover: rgba(255, 255, 255, 0.15);
  --nav-btn-active: rgba(255, 255, 255, 0.22);
  --nav-btn-border: rgba(255, 255, 255, 0.15);
  --nav-btn-border-hover: rgba(255, 255, 255, 0.3);
  --nav-btn-border-active: rgba(255, 255, 255, 0.4);
  --chip-bg: rgba(255, 255, 255, 0.1);
  --cursor-base: rgba(255, 255, 255, 0.5);
  --cursor-strong: rgba(255, 255, 255, 0.8);
  --shadow-strong: 0 24px 60px rgba(0, 0, 0, 0.45);
  --shadow-floating: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-chip: 0 14px 32px rgba(0, 0, 0, 0.35);
  --shadow-button-hover: 0 4px 12px rgba(255, 255, 255, 0.1);
  --shadow-button-active: 0 4px 16px rgba(255, 255, 255, 0.13);
  --auth-glow: rgba(130, 194, 247, 0.35);
  --toggle-bg: rgba(255, 255, 255, 0.12);
  --toggle-border: rgba(255, 255, 255, 0.2);
  --toggle-hover: rgba(255, 255, 255, 0.22);
  --placeholder-start: rgba(120, 60, 255, 0.28);
  --placeholder-end: rgba(55, 205, 255, 0.18);
  --placeholder-border: rgba(255, 255, 255, 0.16);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg-color: #f5f7ff;
  --surface-primary: rgba(16, 22, 40, 0.06);
  --surface-secondary: rgba(16, 22, 40, 0.12);
  --surface-border: rgba(15, 23, 42, 0.14);
  --surface-border-soft: rgba(15, 23, 42, 0.1);
  --surface-border-strong: rgba(15, 23, 42, 0.28);
  --surface-elevated: rgba(255, 255, 255, 0.92);
  --surface-elevated-border: rgba(15, 23, 42, 0.12);
  --text-primary: #13131a;
  --text-secondary: rgba(19, 19, 26, 0.74);
  --text-muted: rgba(19, 19, 26, 0.58);
  --text-subdued: rgba(19, 19, 26, 0.5);
  --text-subtle: rgba(19, 19, 26, 0.45);
  --accent: #3654d4;
  --accent-strong: #1f3ab0;
  --nav-bg: rgba(255, 255, 255, 0.88);
  --nav-border: rgba(15, 23, 42, 0.12);
  --nav-btn-bg: rgba(15, 23, 42, 0.08);
  --nav-btn-hover: rgba(15, 23, 42, 0.16);
  --nav-btn-active: rgba(15, 23, 42, 0.24);
  --nav-btn-border: rgba(15, 23, 42, 0.14);
  --nav-btn-border-hover: rgba(15, 23, 42, 0.24);
  --nav-btn-border-active: rgba(15, 23, 42, 0.32);
  --chip-bg: rgba(15, 23, 42, 0.12);
  --cursor-base: rgba(15, 23, 42, 0.42);
  --cursor-strong: rgba(15, 23, 42, 0.7);
  --shadow-strong: 0 24px 48px rgba(15, 19, 44, 0.18);
  --shadow-floating: 0 10px 36px rgba(15, 19, 44, 0.16);
  --shadow-chip: 0 18px 38px rgba(15, 19, 44, 0.18);
  --shadow-button-hover: 0 4px 12px rgba(15, 19, 44, 0.16);
  --shadow-button-active: 0 4px 16px rgba(15, 19, 44, 0.22);
  --auth-glow: rgba(100, 140, 220, 0.3);
  --toggle-bg: rgba(15, 23, 42, 0.08);
  --toggle-border: rgba(15, 23, 42, 0.16);
  --toggle-hover: rgba(15, 23, 42, 0.22);
  --placeholder-start: rgba(54, 84, 212, 0.24);
  --placeholder-end: rgba(111, 194, 253, 0.2);
  --placeholder-border: rgba(15, 23, 42, 0.16);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;
    --bg-color: #f5f7ff;
    --surface-primary: rgba(16, 22, 40, 0.06);
    --surface-secondary: rgba(16, 22, 40, 0.12);
    --surface-border: rgba(15, 23, 42, 0.14);
    --surface-border-soft: rgba(15, 23, 42, 0.1);
    --surface-border-strong: rgba(15, 23, 42, 0.28);
    --surface-elevated: rgba(255, 255, 255, 0.92);
    --surface-elevated-border: rgba(15, 23, 42, 0.12);
    --text-primary: #13131a;
    --text-secondary: rgba(19, 19, 26, 0.74);
    --text-muted: rgba(19, 19, 26, 0.58);
    --text-subdued: rgba(19, 19, 26, 0.5);
    --text-subtle: rgba(19, 19, 26, 0.45);
    --accent: #3654d4;
    --accent-strong: #1f3ab0;
    --nav-bg: rgba(255, 255, 255, 0.88);
    --nav-border: rgba(15, 23, 42, 0.12);
    --nav-btn-bg: rgba(15, 23, 42, 0.08);
    --nav-btn-hover: rgba(15, 23, 42, 0.16);
    --nav-btn-active: rgba(15, 23, 42, 0.24);
    --nav-btn-border: rgba(15, 23, 42, 0.14);
    --nav-btn-border-hover: rgba(15, 23, 42, 0.24);
    --nav-btn-border-active: rgba(15, 23, 42, 0.32);
    --chip-bg: rgba(15, 23, 42, 0.12);
    --cursor-base: rgba(15, 23, 42, 0.42);
    --cursor-strong: rgba(15, 23, 42, 0.7);
    --shadow-strong: 0 24px 48px rgba(15, 19, 44, 0.18);
    --shadow-floating: 0 10px 36px rgba(15, 19, 44, 0.16);
    --shadow-chip: 0 18px 38px rgba(15, 19, 44, 0.18);
    --shadow-button-hover: 0 4px 12px rgba(15, 19, 44, 0.16);
    --shadow-button-active: 0 4px 16px rgba(15, 19, 44, 0.22);
    --auth-glow: rgba(100, 140, 220, 0.3);
    --toggle-bg: rgba(15, 23, 42, 0.08);
    --toggle-border: rgba(15, 23, 42, 0.16);
    --toggle-hover: rgba(15, 23, 42, 0.22);
    --placeholder-start: rgba(54, 84, 212, 0.24);
    --placeholder-end: rgba(111, 194, 253, 0.2);
    --placeholder-border: rgba(15, 23, 42, 0.16);
  }
}

html {
  height: 100%;
}

body {
  font-family: 'Arial', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100%;
  cursor: none;
}

.portfolio-container {
  min-height: 100vh;
  overflow-x: hidden;
}

/* Page d'accueil / connexion */
.auth-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  opacity: 0;
  animation: authFadeIn 0.85s ease forwards 0.25s;
}

.auth-card {
  width: min(420px, 100%);
  background: var(--surface-elevated);
  border: 1px solid var(--surface-elevated-border);
  border-radius: 24px;
  padding: 2.75rem 2.25rem;
  box-shadow: var(--shadow-strong);
  backdrop-filter: blur(26px);
  position: relative;
  overflow: hidden;
  transform: translateY(28px);
  opacity: 0;
  animation: authCardIn 1s cubic-bezier(0.25, 0.9, 0.3, 1.2) forwards 0.35s;
}

.auth-card::after {
  content: '';
  position: absolute;
  inset: -40% 40% 50% -40%;
  background: radial-gradient(circle at top, var(--auth-glow), transparent 60%);
  opacity: 0.6;
  pointer-events: none;
}

.auth-card > * {
  position: relative;
  z-index: 1;
}

.auth-title {
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.auth-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.auth-actions {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.25rem;
  text-align: center;
}

.auth-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1rem 2.4rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.05em;
  font-size: 1rem;
  color: #fff;
  background: linear-gradient(130deg, #6a73ff, #272b7c 70%, #161947 100%);
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(42, 46, 120, 0.5);
  transition: transform 0.15s ease, box-shadow 0.2s ease, background-position 0.25s ease;
}

.auth-cta::after {
  content: '→';
  font-size: 1.2rem;
  transition: transform 0.2s ease;
}

.auth-cta:hover,
.auth-cta:focus {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(42, 46, 120, 0.55);
  outline: none;
}

.auth-cta:hover::after,
.auth-cta:focus::after {
  transform: translateX(3px);
}

.auth-note {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.auth-note strong {
  color: var(--accent-strong);
}

.auth-wrapper.leaving {
  animation: authFadeOut 0.5s ease forwards;
  pointer-events: none;
}

.auth-wrapper.leaving .auth-card {
  animation: authCardOut 0.55s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

body.auth-leaving #bg-particles {
  opacity: 0;
}

@media (max-width: 520px) {
  .auth-card {
    padding: 2.2rem 1.6rem;
    border-radius: 18px;
  }
  .auth-title {
    font-size: 1.9rem;
  }
}

@keyframes authFadeIn {
  from { opacity: 0; filter: blur(16px); }
  to { opacity: 1; filter: blur(0); }
}

@keyframes authCardIn {
  0% { opacity: 0; transform: translateY(40px) scale(0.96); }
  60% { opacity: 1; transform: translateY(-6px) scale(1.01); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes authFadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes authCardOut {
  0% { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-40px) scale(0.9); }
}

/* CAROUSEL ET CONTENU PRINCIPAL */
.carousel-wrapper {
  width: 100%;
  position: relative;
}

/* Site sections (vertical) */
.site-sections {
  scroll-behavior: smooth;
  width: min(1120px, 94%);
  margin: 0 auto;
  padding-top: calc(5rem + 48px);
  display: flex;
  flex-direction: column;
  gap: clamp(4rem, 12vh, 6.5rem);
}

.site-section {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: clamp(3.5rem, 10vh, 5.5rem) 0;
  scroll-margin-top: 120px;
}

.site-section::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--surface-border-soft), transparent);
  opacity: 0.65;
}

.site-section:last-of-type::after {
  display: none;
}

.site-section.hero::after {
  display: none;
}


.content {
  flex: 1;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.6rem 5rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s, transform 0.6s;
}

.carousel-item.active .content {
  opacity: 1;
  transform: translateY(0);
}

.content h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--text-primary);
  text-align: center;
}

/* global section styling */
.section-header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 760px;
}

.section-header h2 {
  font-size: clamp(2.1rem, 4vw, 2.9rem);
  text-align: left;
}

.section-intro {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 1.05rem;
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 700;
}

.site-section.hero {
  padding-top: clamp(6rem, 14vh, 8rem);
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
  align-items: start;
  grid-template-columns: minmax(0, 1fr);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-content h1 {
  font-size: clamp(2.8rem, 6vw, 3.9rem);
  line-height: 1.1;
  color: var(--text-primary);
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  text-decoration: none;
}

.hero-cta.primary {
  background: linear-gradient(130deg, rgba(130, 194, 247, 0.95), rgba(112, 150, 255, 0.85));
  color: #0b0b14;
  box-shadow: 0 12px 32px rgba(68, 112, 220, 0.35);
}

.hero-cta.secondary {
  border-color: var(--nav-btn-border-active);
  background: transparent;
  color: var(--text-primary);
}

.hero-cta:hover,
.hero-cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(68, 112, 220, 0.25);
}

.hero-cta.secondary:hover,
.hero-cta.secondary:focus-visible {
  background: var(--nav-btn-hover);
  border-color: var(--nav-btn-border-active);
}

.hero-highlights {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.highlight-card {
  background: var(--surface-primary);
  border: 1px solid var(--surface-border);
  padding: 1.2rem 1.4rem;
  border-radius: 16px;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-floating);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.highlight-card:hover {
  transform: translateY(-4px);
  border-color: var(--nav-btn-border-active);
}

.highlight-title {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  display: block;
  margin-bottom: 0.6rem;
}


/* axis / univers */
.axis-content {
  display: grid;
  gap: 2.4rem;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: start;
}

.axis-text {
  display: grid;
  gap: 1rem;
  color: var(--text-secondary);
}

.axis-text em {
  color: var(--text-primary);
  font-style: normal;
  font-weight: 600;
}

.stream-links {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  align-items: flex-start;
}

.stream-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  background: var(--surface-secondary);
  border: 1px solid var(--surface-border);
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.stream-link:hover,
.stream-link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--nav-btn-border-active);
}

.axis-grid {
  display: grid;
  gap: 1.4rem;
}

.axis-card {
  background: var(--surface-primary);
  border: 1px solid var(--surface-border);
  padding: 1.8rem;
  border-radius: 20px;
  display: grid;
  gap: 1rem;
  box-shadow: var(--shadow-floating);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.axis-card:hover {
  transform: translateY(-6px);
  border-color: var(--nav-btn-border-active);
}

.axis-card h3 {
  font-size: 1.4rem;
  color: var(--text-primary);
}

.axis-card ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.axis-card ul li {
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-left: 1.2rem;
  position: relative;
}

.axis-card ul li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.audio-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  align-items: flex-start;
  padding: 1.4rem 1.6rem;
  max-width: 360px;
}

.audio-card__body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.audio-player {
  width: 100%;
  min-width: 220px;
  height: 44px;
  display: block;
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.25));
}

.audio-disclaimer {
  margin-top: 1.6rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-subdued);
}

.beatstars-text,
.beatstars-highlight {
  margin-top: 1rem;
  color: var(--text-secondary);
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%; /* Ensure full width */
  color: var(--text-primary);
  font-style: normal;
  font-weight: 600;
}

.beatstars-block a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.beatstars-block a:hover,
.beatstars-block a:focus-visible {
  color: var(--accent-strong);
  text-decoration: underline;
}

/* projects */
.projects-grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.project-card {
  background: var(--surface-primary);
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  padding: 1.8rem;
  display: grid;
  gap: 0.9rem;
  box-shadow: var(--shadow-floating);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--nav-btn-border-active);
}

.project-card h3 {
  font-size: 1.3rem;
}

.project-year {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  color: var(--text-subdued);
}

.project-location {
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.project-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

.project-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--chip-bg);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  color: var(--text-secondary);
}

/* journey */
.journey-grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.journey-card {
  background: var(--surface-primary);
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  padding: 1.8rem;
  display: grid;
  gap: 1rem;
  box-shadow: var(--shadow-floating);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.journey-card:hover {
  transform: translateY(-6px);
  border-color: var(--nav-btn-border-active);
}

.journey-card h3 {
  font-size: 1.25rem;
}

.journey-period {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-subdued);
}

.journey-school {
  color: var(--text-secondary);
  font-weight: 600;
}

.journey-description {
  color: var(--text-muted);
  line-height: 1.6;
}

.journey-location {
  display: grid;
  gap: 0.8rem;
}

.journey-location iframe {
  width: 100%;
  min-height: 200px;
  border: none;
  border-radius: 14px;
  box-shadow: var(--shadow-chip);
}

.profile-card {
  background: var(--surface-secondary);
}

.profile-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  color: var(--text-secondary);
}

.profile-list strong {
  color: var(--text-primary);
}

/* certifications */
.certification-grid {
  display: grid;
  gap: 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.certification-item {
  background: var(--surface-primary);
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  padding: 1.8rem;
  box-shadow: var(--shadow-floating);
  display: grid;
  gap: 0.9rem;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.certification-item:hover {
  transform: translateY(-6px);
  border-color: var(--nav-btn-border-active);
}

.certification-item h3 {
  font-size: 1.25rem;
  color: var(--text-primary);
}

.certification-date {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-subdued);
}

/* contact */
.contact-grid {
  display: grid;
  gap: 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.contact-card {
  background: var(--surface-primary);
  border: 1px solid var(--surface-border);
  border-radius: 18px;
  padding: 1.6rem;
  display: grid;
  gap: 0.6rem;
  box-shadow: var(--shadow-floating);
}

.contact-card h3 {
  font-size: 1.1rem;
  color: var(--text-primary);
}

.contact-card a,
.contact-card p {
  color: var(--text-secondary);
  text-decoration: none;
}

.contact-card a:hover,
.contact-card a:focus-visible {
  color: var(--accent);
}

.site-footer {
  margin-top: 2.4rem;
  color: var(--text-subtle);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
}

/* Hero / Accueil */
.carousel-item[data-section="accueil"] {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 6vh;
  padding-bottom: 6vh;
}
.carousel-item[data-section="accueil"] .content {
  max-width: 920px;
  text-align: center;
  padding: 3rem 1.2rem;
}
.carousel-item[data-section="accueil"] h2 {
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  letter-spacing: 0.02em;
  margin-bottom: 0.6rem;
}
.carousel-item[data-section="accueil"] p {
  margin: 0 auto;
  max-width: 760px;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* subtle accent line under hero title */
.carousel-item[data-section="accueil"] .content::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  margin: 18px auto 0;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--accent-strong), var(--accent));
  opacity: 0.95;
}

.certification-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.2s ease, transform 0.2s ease;
}

.certification-link::after {
  content: '↗';
  font-size: 0.95rem;
  transition: transform 0.2s ease;
}

.certification-link:hover,
.certification-link:focus {
  color: var(--accent-strong);
  transform: translateY(-1px);
}

.certification-link:hover::after,
.certification-link:focus::after {
  transform: translate(2px, -2px);
}

.company, .school, .issuer { color: var(--text-subdued); font-style: italic; margin-bottom: 0.3rem;}
.period, .date { color: var(--text-subtle); font-size: 0.9rem; margin-bottom: 0.8rem;}
.description { line-height: 1.6; color: var(--text-muted); }
.locations { margin-top: 1rem;}
.location {
  display: inline-block;
  background: var(--chip-bg);
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  margin-right: 0.5rem;
  font-size: 0.8rem;
}

.formation-map {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.7rem;
}

.formation-map iframe {
  width: 100%;
  min-height: 220px;
  border: none;
  border-radius: 14px;
  box-shadow: var(--shadow-chip);
  filter: saturate(1.1) contrast(1.05);
}

.formation-address {
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.contact-method {
  background: var(--surface-primary);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--surface-border-soft);
}

.contact-method h3 {margin-bottom: 0.5rem; color: var(--text-primary); font-size: 1rem;}
.contact-method p, .contact-method a { color: var(--text-muted); text-decoration: none;}
.contact-method a:hover { color: var(--text-primary);}

/* Navigation menu principal */
/* La barre toujours ouverte ! */
.navigation {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  z-index: 100;
  opacity: 1;
  transition: all 0.6s ease;
  backdrop-filter: blur(10px);
  background: var(--nav-bg);
  padding: 0.8rem 1.2rem;
  border-radius: 30px;
  border: 1px solid var(--nav-border);
  box-shadow: var(--shadow-floating);
}

.navigation .nav-btn {
  display: inline-block;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.25s;
}

.nav-btn {
  padding: 0.6rem 1.2rem;
  background: var(--nav-btn-bg);
  border: 1px solid var(--nav-btn-border);
  color: var(--text-primary);
  border-radius: 20px;
  cursor: none;
  transition: all 0.3s;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  text-align: center;
  min-width: fit-content;
}

.nav-btn:hover {
  background: var(--nav-btn-hover);
  border-color: var(--nav-btn-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-button-hover);
}

.nav-btn.active {
  background: var(--nav-btn-active);
  border-color: var(--nav-btn-border-active);
  color: var(--text-primary);
  box-shadow: var(--shadow-button-active);
}

/* Flèches */
.nav-arrow {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: var(--toggle-bg);
  border: 1px solid var(--toggle-border);
  border-radius: 50%;
  cursor: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-primary);
  transition: all 0.25s;
  z-index: 200;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  user-select: none;
}

.nav-arrow:hover {
  background: var(--toggle-hover);
  color: var(--text-primary);
  transform: translateY(-50%) scale(1.12);
  border-color: var(--nav-btn-border-active);
}

.prev-arrow { left: 2rem; }
.next-arrow { right: 2rem; }

.theme-toggle {
  position: fixed;
  top: 4px;
  right: 1.5rem;
  z-index: 220;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 33px;
  height: 33px;
  border-radius: 50%;
  border: 1px solid var(--toggle-border);
  background: var(--toggle-bg);
  color: var(--text-primary);
  cursor: none;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

/* Top header */
.top-header {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  top: 1rem;
  width: min(1100px, 95%);
  z-index: 400;
  pointer-events: auto;
}
.top-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid var(--nav-border);
  padding: 0.45rem 0.75rem;
  border-radius: 14px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-floating);
}
.top-header--scrolled .top-header__inner {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.25), rgba(15, 23, 42, 0.08));
  border-color: var(--nav-btn-border-active);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.34);
}
.brand-link {
  color: var(--text-primary);
  font-weight: 700;
  text-decoration: none;
  font-size: 1rem;
  padding-left: 6px;
}
.top-nav {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}
.top-nav .nav-btn {
  background: transparent;
  border: none;
  padding: 0.4rem 0.7rem;
  border-radius: 10px;
  color: var(--text-secondary);
  font-weight: 600;
  cursor: none;
}
.top-nav .nav-btn:hover,
.top-nav .nav-btn:focus {
  color: var(--text-primary);
  background: var(--nav-btn-hover);
}
.top-nav .nav-btn.active {
  color: var(--text-primary);
  background: var(--nav-btn-active);
  box-shadow: var(--shadow-button-active);
}

/* give top header space so sections aren't hidden beneath it */
/* spacing handled in primary .site-sections rule */

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: var(--toggle-hover);
  border-color: var(--nav-btn-border-active);
  transform: translateY(-2px);
  outline: none;
}

.theme-toggle__icon {
  font-size: 1.2rem;
  line-height: 1;
}

.theme-toggle__icon--sun {
  display: none;
}

:root[data-theme="light"] .theme-toggle__icon--sun {
  display: inline;
}

:root[data-theme="light"] .theme-toggle__icon--moon {
  display: none;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme-toggle__icon--sun {
    display: inline;
  }
  :root:not([data-theme="dark"]) .theme-toggle__icon--moon {
    display: none;
  }
}

/* Curseur custom */
.custom-cursor {
  position: fixed;
  width: 20px;
  height: 20px;
  left: 0;
  top: 0;
  background: transparent;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: transform 0.1s, opacity 0.2s, background 0.2s;
  mix-blend-mode: difference;
}

.custom-cursor.active {
  background: var(--cursor-base);
  opacity: 1;
}


body.touch-enabled {
  cursor: auto;
}

body.touch-enabled .custom-cursor {
  display: none;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 600px) {
  .theme-toggle {
    top: 0.8rem;
    right: 0.8rem;
    width: 36px;
    height: 36px;
  }
  .content h2 {
    font-size: 2rem;
  }
  body:not(.auth-leaving) .custom-cursor {
    display: none;
  }
  .hero-highlights {
    grid-template-columns: 1fr;
  }
  .axis-grid,
  .projects-grid,
  .journey-grid,
  .certification-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .section-header h2 {
    font-size: 1.95rem;
  }
}
#bg-particles {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  /* Optionnel : transition douce au resize */
  transition: opacity 0.28s;
}
body {
  background: var(--bg-color);
  /* ou #1d1d21 #111 pour fond sombre, sinon adapte la couleur au besoin */
}
button, a, audio {
  cursor: none;
}
iframe {
  border-radius: 14px;
}