/* ================================================================
   Portfolio Lucas Rasolofoniaina
   Les couleurs, espacements et rayons se modifient ici.
   ================================================================ */

:root {
  --bg: #08090a;
  --bg-secondary: #101214;
  --card: #15181b;
  --card-hover: #191d20;
  --text: #f5f7f8;
  --muted: #a7adb4;
  --subtle: #747c84;
  --border: #272c31;
  --accent: #4aa1a1;
  --accent-light: #72bbbb;
  --accent-soft: rgba(74, 161, 161, 0.12);
  --accent-glow: rgba(74, 161, 161, 0.2);
  --max-width: 1180px;
  --header-height: 76px;
  --space-section: clamp(5.5rem, 10vw, 9rem);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --transition: 220ms ease;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main, .site-footer { position: relative; z-index: 1; }

/* Fond spatial global : discret, décoratif et sans interaction. */
.cosmos {
  position: fixed;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  contain: strict;
  pointer-events: none;
}
.starfield { position: absolute; inset: 0; contain: strict; opacity: .55; will-change: transform; }
.star {
  position: absolute;
  top: var(--y);
  left: var(--x);
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background: var(--star-color, #dce9ea);
  box-shadow: 0 0 calc(var(--size) * 4) currentColor;
  opacity: var(--opacity);
}
.star.is-twinkling {
  animation: starPulse var(--duration) ease-in-out var(--delay) infinite;
}
.celestial {
  position: absolute;
  border: 1px solid rgba(74, 161, 161, .16);
  border-radius: 50%;
  opacity: .3;
  filter: blur(.2px);
  animation: celestialDrift 18s ease-in-out infinite alternate;
}
.celestial::before, .celestial::after { content: ""; position: absolute; border-radius: inherit; }
.celestial::before { inset: 12%; background: radial-gradient(circle at 35% 30%, rgba(114,187,187,.18), rgba(74,161,161,.04) 48%, transparent 70%); }
.celestial::after { inset: -18%; border: 1px dashed rgba(255,255,255,.06); }
.celestial-one { top: 13%; right: -90px; width: 240px; height: 240px; }
.celestial-two { top: 68%; left: -120px; width: 310px; height: 310px; animation-delay: -8s; }
.shooting-star {
  position: absolute;
  top: 24%;
  left: -20%;
  width: 100px;
  height: 1px;
  opacity: 0;
  background: linear-gradient(90deg, transparent, rgba(114,187,187,.7), transparent);
  transform: rotate(-18deg);
  animation: shootingStar 14s ease-in-out 4s infinite;
}

body.menu-open { overflow: hidden; }

::selection { color: var(--bg); background: var(--accent-light); }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
p, h1, h2, h3, ul, dl, dd { margin-top: 0; }

:focus-visible {
  outline: 3px solid var(--accent-light);
  outline-offset: 4px;
}

.container { width: min(calc(100% - 40px), var(--max-width)); margin-inline: auto; }
.section { position: relative; padding-block: var(--space-section); overflow: clip; }
.section-alt { background: var(--bg-secondary); }
.accent { color: var(--accent); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--bg);
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
  transition: transform var(--transition);
}
.skip-link:focus { transform: translateY(0); }

/* Navigation */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  background: rgba(8, 9, 10, 0.78);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: border-color var(--transition), background var(--transition);
}
.site-header.scrolled { background: rgba(8, 9, 10, 0.94); border-color: var(--border); }
.nav { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.nav-panel { display: flex; align-items: center; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 750; letter-spacing: -0.02em; }
.brand-mark { display: grid; place-items: center; width: 34px; aspect-ratio: 1; color: var(--accent-light); border: 1px solid var(--accent); border-radius: 50%; font-size: 0.69rem; letter-spacing: 0.05em; }
.brand-text { font-size: 1.08rem; }
.nav-links { display: flex; align-items: center; gap: clamp(.7rem, 1.6vw, 1.5rem); margin: 0; padding: 0; list-style: none; }
.nav-link { position: relative; color: var(--muted); text-decoration: none; font-size: 0.85rem; font-weight: 600; transition: color var(--transition); }
.nav-link::after { content: ""; position: absolute; right: 0; bottom: -10px; left: 0; height: 1px; background: var(--accent); transform: scaleX(0); transition: transform var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link.active::after { transform: scaleX(1); }
.nav-contact { padding: 9px 15px; border: 1px solid var(--border); border-radius: 99px; }
.nav-contact::after { display: none; }
.nav-contact:hover, .nav-contact.active { border-color: var(--accent); background: var(--accent-soft); }
.language-switcher { position: relative; flex: 0 0 auto; }
.language-switcher::after { content: "⌄"; position: absolute; top: 50%; right: 9px; color: var(--accent-light); font-size: .72rem; transform: translateY(-58%); pointer-events: none; }
.language-switcher select { min-width: 62px; height: 36px; padding: 0 25px 0 10px; color: var(--text); background: #101214; border: 1px solid var(--border); border-radius: 99px; appearance: none; cursor: pointer; font-size: .72rem; font-weight: 700; letter-spacing: .06em; transition: border-color var(--transition), background var(--transition); }
.language-switcher select:hover { border-color: var(--accent); background: var(--accent-soft); }
.language-switcher option { color: var(--text); background: var(--bg-secondary); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; background: transparent; border: 1px solid var(--border); border-radius: var(--radius-sm); cursor: pointer; }
.menu-toggle span { display: block; width: 100%; height: 1px; margin: 5px 0; background: var(--text); transition: transform var(--transition), opacity var(--transition); }

/* Titres et boutons */
.section-heading { max-width: 700px; margin-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.section-heading h2, .contact-intro h2 { margin-bottom: 1rem; font-size: clamp(2.3rem, 6vw, 4.7rem); line-height: 1.02; letter-spacing: -0.055em; }
.section-heading > p:last-child { max-width: 590px; color: var(--muted); font-size: 1.05rem; }
.section-index, .eyebrow { margin-bottom: 1.2rem; color: var(--accent-light); font-size: 0.75rem; font-weight: 750; letter-spacing: 0.15em; text-transform: uppercase; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 48px; padding: 11px 18px; border: 1px solid transparent; border-radius: var(--radius-sm); text-decoration: none; font-size: 0.9rem; font-weight: 700; transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition); }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #071010; background: var(--accent); box-shadow: 0 10px 30px rgba(74, 161, 161, 0.13); }
.button-primary:hover { background: var(--accent-light); box-shadow: 0 14px 36px rgba(74, 161, 161, 0.22); }
.button-secondary { color: var(--text); background: rgba(255, 255, 255, 0.02); border-color: var(--border); }
.button-secondary:hover { border-color: #4b545c; background: var(--card); }
.text-link { display: inline-flex; gap: 8px; align-items: center; color: var(--muted); text-underline-offset: 5px; transition: color var(--transition); }
.text-link:hover { color: var(--accent-light); }

/* Accueil */
.hero { min-height: 100svh; display: grid; align-items: center; padding-top: calc(var(--header-height) + 60px); padding-bottom: 80px; isolation: isolate; }
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; opacity: 0.16; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 70px 70px; mask-image: linear-gradient(to bottom, black, transparent 86%); }
.hero-glow { position: absolute; z-index: -1; width: 38vw; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(74,161,161,.2), rgba(74,161,161,.08) 42%, transparent 72%); opacity: .35; pointer-events: none; }
.hero-glow-one { top: 5%; left: -22%; }
.hero-glow-two { right: -28%; bottom: -15%; opacity: 0.18; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.14fr) minmax(360px, .86fr); gap: clamp(4rem, 7vw, 6.5rem); align-items: center; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
.hero h1 { margin-bottom: 0.8rem; font-size: clamp(2.7rem, 5.8vw, 5.45rem); line-height: 0.94; letter-spacing: -0.065em; text-wrap: balance; }
.hero h1 span { color: transparent; -webkit-text-stroke: 1px rgba(245, 247, 248, 0.52); font-size: 0.62em; letter-spacing: -0.04em; }
.hero-role { margin-bottom: 1.45rem; color: var(--accent-light); font-size: clamp(1.1rem, 2vw, 1.45rem); font-weight: 650; letter-spacing: -0.02em; }
.hero-intro { max-width: 720px; margin-bottom: 2rem; color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.12rem); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 20px; margin: 2.3rem 0 0; padding: 1.2rem 0 0; border-top: 1px solid var(--border); list-style: none; color: var(--subtle); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.hero-meta li:not(:last-child)::after { content: "/"; margin-left: 20px; color: var(--border); }
.portrait-wrap { position: relative; width: min(100%, 390px); margin-right: clamp(.75rem, 2vw, 1.8rem); justify-self: end; isolation: isolate; }
.solar-halo { position: absolute; z-index: 0; inset: -18px; border-radius: 50%; background: radial-gradient(circle, rgba(74,161,161,.2) 0 44%, rgba(74,161,161,.08) 58%, transparent 73%); opacity: .45; animation: solarPulse 5.8s ease-in-out infinite; }
.portrait-frame { position: relative; z-index: 2; overflow: hidden; aspect-ratio: 1; border: 1px solid #3b454a; border-radius: 50%; background: radial-gradient(circle at 50% 40%, #303539, #121416 72%); box-shadow: var(--shadow), 0 0 0 10px rgba(255,255,255,.012), 0 0 42px rgba(74,161,161,.08); }
.portrait-frame::before { content: ""; position: absolute; z-index: 1; inset: 0; background: radial-gradient(circle at 32% 24%, rgba(183,231,231,.2), transparent 32%); opacity: .18; animation: portraitLight 5.8s ease-in-out infinite; pointer-events: none; }
.portrait-frame::after { content: ""; position: absolute; z-index: 2; inset: 0; background: linear-gradient(135deg, transparent 55%, rgba(74,161,161,.13)); pointer-events: none; }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; }
.orbit { position: absolute; z-index: 1; inset: -24px; border: 1px solid rgba(74,161,161,.24); border-radius: 50%; animation: orbitSpin var(--orbit-duration) linear var(--orbit-delay) infinite; }
.orbit-one { --orbit-duration: 15s; --orbit-delay: -4s; }
.orbit-two { --orbit-duration: 24s; --orbit-delay: -13s; inset: -50px; border-style: dashed; border-color: rgba(255,255,255,.1); animation-direction: reverse; }
.orbit-three { --orbit-duration: 36s; --orbit-delay: -21s; inset: -76px; border-color: rgba(74,161,161,.13); }
.orbital-body { position: absolute; top: 50%; left: -4px; width: 8px; height: 8px; border: 1px solid rgba(184,231,231,.7); border-radius: 50%; background: var(--accent-light); box-shadow: 0 0 7px rgba(114,187,187,.9), 0 0 18px rgba(74,161,161,.45); transform: translateY(-50%); }
.orbit-two .orbital-body { left: -3px; width: 6px; height: 6px; background: #d2dddd; box-shadow: 0 0 8px rgba(210,221,221,.65); }
.orbit-three .orbital-body { left: -3px; width: 6px; height: 6px; background: var(--accent); box-shadow: 0 0 10px rgba(74,161,161,.7); }
.orbital-body-secondary { top: auto; right: 7%; bottom: 20%; left: auto !important; width: 4px !important; height: 4px !important; opacity: .7; }
.portrait-label { display: flex; align-items: center; gap: 9px; width: max-content; margin: 30px auto 0; color: var(--subtle); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.65rem; letter-spacing: 0.17em; }
.portrait-label i { width: 18px; height: 1px; background: var(--border); }
.scroll-cue { position: absolute; bottom: 28px; left: 50%; display: flex; align-items: center; gap: 10px; color: var(--subtle); font-size: 0.68rem; letter-spacing: 0.12em; text-decoration: none; text-transform: uppercase; transform: translateX(-50%); }
.scroll-cue span { position: relative; width: 1px; height: 28px; overflow: hidden; background: var(--border); }
.scroll-cue span::after { content: ""; position: absolute; width: 1px; height: 50%; background: var(--accent); animation: scrollLine 2.2s ease-in-out infinite; }

/* À propos */
.about-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); gap: clamp(3rem, 9vw, 7rem); align-items: start; }
.about-copy { max-width: 720px; color: var(--muted); }
.about-copy p { margin-bottom: 1.3rem; }
.lead { color: var(--text); font-size: clamp(1.15rem, 2.3vw, 1.45rem); line-height: 1.55; letter-spacing: -0.02em; }
.facts-card { padding: clamp(1.3rem, 3vw, 2rem); background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); }
.facts-list { margin-bottom: 2rem; }
.facts-list > div { display: grid; grid-template-columns: 1fr 1.4fr; gap: 1rem; padding-block: 1rem; border-bottom: 1px solid var(--border); }
.facts-list dt { color: var(--subtle); font-size: .78rem; }
.facts-list dd { margin: 0; color: var(--text); font-size: .88rem; font-weight: 600; }
.languages h3 { margin-bottom: 1rem; font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; }
.languages ul { margin: 0; padding: 0; list-style: none; }
.languages li { display: flex; justify-content: space-between; gap: 1rem; padding-block: .45rem; color: var(--muted); }
.languages small { color: var(--accent-light); }
.placeholder { color: #c3aa7a !important; }

/* Compétences */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.skill-card { position: relative; min-height: 270px; padding: clamp(1.5rem, 3vw, 2.2rem); overflow: hidden; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); transition: transform var(--transition), background var(--transition), border-color var(--transition); }
.skill-card:hover { transform: translateY(-4px); background: var(--card-hover); border-color: #3e474e; }
.skill-card h3 { max-width: 80%; margin-bottom: 1.5rem; font-size: clamp(1.25rem, 2vw, 1.6rem); }
.card-number { position: absolute; top: 1.6rem; right: 1.8rem; color: var(--subtle); font-family: ui-monospace, monospace; font-size: .72rem; }
.skill-list, .tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.skill-list li { padding: 6px 10px; color: var(--muted); background: rgba(255,255,255,.025); border: 1px solid var(--border); border-radius: 6px; font-size: .82rem; }
.skill-list small { margin-left: 4px; color: var(--accent-light); }
.skill-level { position: absolute; right: 2.2rem; bottom: 1.4rem; left: 2.2rem; margin: 0; padding-top: .9rem; color: var(--accent-light); border-top: 1px solid var(--border); font-family: ui-monospace, monospace; font-size: .68rem; letter-spacing: .09em; text-transform: uppercase; }
.skill-card-wide { grid-column: 1 / -1; min-height: 225px; }

/* Projets */
.projects-heading { max-width: none; display: grid; grid-template-columns: 1fr minmax(280px, .65fr); align-items: end; gap: 2rem; }
.projects-heading h2 { margin-bottom: 0; }
.projects-heading > p { justify-self: end; }
.project-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 2rem; }
.filter-button { padding: 8px 14px; color: var(--muted); background: transparent; border: 1px solid var(--border); border-radius: 99px; cursor: pointer; font-size: .78rem; transition: color var(--transition), border-color var(--transition), background var(--transition); }
.filter-button:hover, .filter-button.active { color: var(--text); border-color: var(--accent); background: var(--accent-soft); }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.project-card { display: flex; flex-direction: column; min-height: 420px; padding: clamp(1.35rem, 2.6vw, 2rem); background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); transition: transform var(--transition), border-color var(--transition), background var(--transition); }
.project-card:hover { transform: translateY(-5px); border-color: rgba(74,161,161,.52); background: var(--card-hover); }
.project-card[hidden] { display: none; }
.project-top { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 3.2rem; color: var(--subtle); font-family: ui-monospace, monospace; font-size: .69rem; }
.project-category { color: var(--accent-light); text-align: right; text-transform: uppercase; letter-spacing: .06em; }
.project-card h3 { margin-bottom: 1rem; font-size: 1.3rem; line-height: 1.25; letter-spacing: -.025em; }
.project-card > p { color: var(--muted); font-size: .9rem; }
.tags { margin-block: auto 1.8rem; }
.tags li { color: var(--subtle); font-family: ui-monospace, monospace; font-size: .68rem; }
.tags li:not(:last-child)::after { content: "·"; margin-left: 8px; color: var(--accent); }
.project-card details { border-top: 1px solid var(--border); }
.project-card summary { padding-top: 1rem; color: var(--text); cursor: pointer; font-size: .83rem; font-weight: 650; }
.project-card summary::marker { color: var(--accent); }
.project-details { padding-top: 1rem; color: var(--muted); font-size: .78rem; }
.project-details p { margin-bottom: .65rem; }
.project-details strong { display: block; color: var(--subtle); font-size: .68rem; text-transform: uppercase; }

/* Timeline */
.timeline { position: relative; max-width: 940px; margin-left: auto; }
.timeline::before { content: ""; position: absolute; top: 8px; bottom: 0; left: 198px; width: 1px; background: var(--border); }
.timeline-item { position: relative; display: grid; grid-template-columns: 170px 1fr; gap: 58px; padding-bottom: 4rem; }
.timeline-marker { position: absolute; z-index: 1; top: 7px; left: 193px; width: 11px; height: 11px; border: 2px solid var(--accent); border-radius: 50%; background: var(--bg); box-shadow: 0 0 0 6px var(--accent-soft); }
.timeline-date { padding-top: 1px; font-family: ui-monospace, monospace; font-size: .75rem; text-align: right; }
.timeline-content { padding: 0 0 2rem; border-bottom: 1px solid var(--border); }
.timeline-content h3 { margin-bottom: 1.2rem; font-size: clamp(1.35rem, 3vw, 2rem); }
.timeline-content p { margin-bottom: .65rem; color: var(--muted); font-size: .91rem; }
.timeline-content strong { color: var(--subtle); font-size: .78rem; }
.mission-list { margin: 0 0 1.2rem; padding-left: 1.1rem; color: var(--muted); font-size: .91rem; }
.mission-list li { margin-bottom: .55rem; padding-left: .35rem; }
.mission-list li::marker { color: var(--accent); }
.company { margin-bottom: .4rem !important; color: var(--accent-light) !important; font-family: ui-monospace, monospace; font-size: .75rem !important; text-transform: uppercase; letter-spacing: .08em; }

/* Laboratoire */
.lab-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr); gap: clamp(3rem, 8vw, 7rem); align-items: center; }
.lab-copy { color: var(--muted); }
.lab-diagram { position: relative; padding: clamp(1.4rem, 4vw, 3rem); background: linear-gradient(145deg, #171a1d, #101214); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.diagram-host { display: grid; grid-template-columns: 48px 1fr; column-gap: 12px; align-items: center; width: min(260px, 100%); margin-inline: auto; padding: 16px; background: var(--accent-soft); border: 1px solid rgba(74,161,161,.45); border-radius: var(--radius-sm); }
.diagram-host .node-icon { grid-row: 1 / 3; display: grid; place-items: center; width: 45px; height: 45px; color: var(--bg); background: var(--accent); border-radius: 7px; font-weight: 800; }
.diagram-host small, .diagram-vms small { color: var(--subtle); }
.diagram-line { width: 1px; height: 36px; margin-inline: auto; background: var(--accent); opacity: .6; }
.diagram-vms { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.diagram-vms > div { display: grid; grid-template-columns: 38px 1fr; column-gap: 10px; align-items: center; padding: 14px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.diagram-vms > div > span { grid-row: 1 / 3; color: var(--accent-light); font-family: ui-monospace, monospace; font-size: 1.2rem; }
.diagram-services { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.diagram-services span { padding: 8px 5px; color: var(--muted); border: 1px solid var(--border); border-radius: 5px; font-family: ui-monospace, monospace; font-size: .65rem; text-align: center; }

/* Formation */
.education-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.education-card { min-height: 225px; padding: clamp(1.4rem, 3vw, 2rem); border: 1px solid var(--border); border-radius: var(--radius-md); }
.education-card > span { display: inline-block; margin-bottom: 2.4rem; color: var(--accent-light); font-family: ui-monospace, monospace; font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; }
.education-card h3 { margin-bottom: .7rem; font-size: 1.25rem; }
.education-card p { margin-bottom: .4rem; color: var(--muted); font-size: .85rem; }
.education-target { background: linear-gradient(135deg, var(--accent-soft), transparent); border-color: rgba(74,161,161,.4); }

/* Passions */
.passions-section {
  background-color: var(--bg-secondary);
  background-image: radial-gradient(circle at 88% 18%, rgba(74,161,161,.09), transparent 28%), radial-gradient(circle at 8% 80%, rgba(74,161,161,.05), transparent 24%);
}
.passions-section::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .22;
  background-image: radial-gradient(circle, rgba(245,247,248,.75) 0 1px, transparent 1.5px);
  background-size: 94px 94px;
  background-position: 17px 31px;
  mask-image: linear-gradient(to bottom, transparent, black 16%, black 84%, transparent);
  pointer-events: none;
}
.motocross-feature { position: relative; overflow: hidden; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.motocross-visual { aspect-ratio: 3 / 2; overflow: hidden; }
.motocross-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 52%, rgba(8,9,10,.1)); pointer-events: none; }
.motocross-visual img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s cubic-bezier(.2,.7,.2,1); }
.motocross-feature:hover .motocross-visual img { transform: scale(1.018); }
.motocross-copy { position: absolute; right: clamp(1rem, 3vw, 2.5rem); bottom: clamp(1rem, 3vw, 2.5rem); width: min(39%, 420px); padding: clamp(1.2rem, 2.5vw, 2rem); background: rgba(8,9,10,.89); border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius-md); box-shadow: 0 18px 50px rgba(0,0,0,.36); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.passion-kicker { display: flex; gap: 10px; align-items: center; margin-bottom: .8rem; color: var(--accent-light); font-family: ui-monospace, monospace; font-size: .67rem; letter-spacing: .08em; text-transform: uppercase; }
.passion-kicker span { color: var(--subtle); }
.motocross-copy h3, .gaming-intro h3 { margin-bottom: .8rem; font-size: clamp(1.65rem, 3.5vw, 2.7rem); line-height: 1; letter-spacing: -.04em; }
.motocross-copy > p:not(.passion-kicker), .gaming-intro > p:not(.passion-kicker) { color: var(--muted); font-size: .9rem; }
.passion-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 1.2rem 0 0; padding: 0; list-style: none; }
.passion-tags li { padding: 5px 9px; color: var(--accent-light); background: var(--accent-soft); border: 1px solid rgba(74,161,161,.24); border-radius: 99px; font-size: .68rem; }
.gaming-strip { display: grid; grid-template-columns: minmax(260px,.72fr) minmax(0,1.28fr); gap: clamp(2rem,6vw,5rem); align-items: center; margin-top: 18px; padding: clamp(1.5rem,3vw,2.3rem); background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-md); }
.gaming-intro h3 { font-size: clamp(1.5rem,3vw,2.2rem); }
.gaming-intro p:last-child { margin-bottom: 0; }
.game-list { display: grid; grid-template-columns: repeat(4,1fr); gap: 9px; margin: 0; padding: 0; list-style: none; }
.game-list li { display: flex; gap: 10px; align-items: center; min-width: 0; padding: 12px; background: rgba(255,255,255,.02); border: 1px solid var(--border); border-radius: var(--radius-sm); transition: border-color var(--transition), transform var(--transition), background var(--transition); }
.game-list li:hover { transform: translateY(-2px); background: var(--accent-soft); border-color: rgba(74,161,161,.48); }
.game-list li > span:last-child { min-width: 0; }
.game-list strong, .game-list small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.game-list strong { color: var(--text); font-size: .75rem; }
.game-list small { color: var(--subtle); font-size: .62rem; }
.game-mark { flex: 0 0 auto; display: grid; place-items: center; width: 35px; height: 35px; color: var(--accent-light); background: #0d1011; border: 1px solid var(--border); border-radius: 7px; font-family: ui-monospace, monospace; font-size: .65rem; font-weight: 800; }
.game-pubg { border-radius: 50%; }
.game-mx { transform: skew(-5deg); }
.game-ac { border-top-color: var(--accent); border-bottom-color: var(--accent); }
.game-hk { color: var(--text); border-radius: 50% 50% 42% 42%; }

/* Contact et pied de page */
.contact-section { padding-bottom: clamp(5rem, 9vw, 8rem); background: radial-gradient(circle at 15% 75%, rgba(74,161,161,.12), transparent 35%); border-top: 1px solid var(--border); }
.contact-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(380px, 1.05fr); gap: clamp(3rem, 10vw, 8rem); align-items: center; }
.contact-intro h2 { max-width: 650px; }
.contact-intro > p:not(.section-index) { max-width: 540px; margin-bottom: 2rem; color: var(--muted); }
.contact-list { font-style: normal; border-top: 1px solid var(--border); }
.contact-row { display: grid; grid-template-columns: 110px 1fr; gap: 1rem; align-items: center; min-height: 72px; padding-block: .8rem; border-bottom: 1px solid var(--border); }
.contact-row > span { color: var(--subtle); font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; }
.contact-row a { color: var(--text); text-decoration: none; overflow-wrap: anywhere; transition: color var(--transition); }
.contact-row a:hover { color: var(--accent-light); }
.contact-row p { margin: 0; }
.contact-row > div { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.copy-button { padding: 6px 10px; color: var(--accent-light); background: transparent; border: 1px solid var(--border); border-radius: 5px; cursor: pointer; font-size: .7rem; transition: background var(--transition), border-color var(--transition); }
.copy-button:hover { background: var(--accent-soft); border-color: var(--accent); }
.site-footer { padding-block: 2rem; color: var(--subtle); background: #060708; border-top: 1px solid var(--border); font-size: .74rem; }
.footer-content { display: flex; justify-content: space-between; gap: 2rem; }
.footer-content p { margin: 0; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { text-underline-offset: 4px; }
/* Apparition au défilement : le contenu reste visible sans JavaScript. */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 650ms ease, transform 650ms ease; }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes rotate { to { transform: rotate(360deg); } }
@keyframes orbitSpin { to { transform: rotate(360deg); } }
@keyframes solarPulse { 0%, 100% { opacity: .3; transform: scale(.97); } 50% { opacity: .56; transform: scale(1.025); } }
@keyframes portraitLight { 0%, 100% { opacity: .1; } 50% { opacity: .28; } }
@keyframes scrollLine { 0% { top: -50%; } 55%, 100% { top: 100%; } }
@keyframes starPulse { 0%, 100% { opacity: .07; transform: scale(.7); } 50% { opacity: var(--opacity); transform: scale(1); } }
@keyframes celestialDrift { from { transform: translate3d(0,0,0) rotate(0); } to { transform: translate3d(18px,-20px,0) rotate(8deg); } }
@keyframes shootingStar { 0%, 72% { opacity: 0; transform: translate3d(0,0,0) rotate(-18deg); } 75% { opacity: .45; } 84%, 100% { opacity: 0; transform: translate3d(125vw,-36vh,0) rotate(-18deg); } }

@media (max-width: 980px) {
  :root { --header-height: 68px; }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .nav-panel { position: fixed; top: var(--header-height); right: 0; left: 0; display: block; max-height: 0; overflow: hidden; background: rgba(8,9,10,.98); border-bottom: 1px solid transparent; transition: max-height 350ms ease, border-color var(--transition); }
  .nav-panel.open { max-height: calc(100svh - var(--header-height)); border-color: var(--border); }
  .nav-links { display: block; width: min(calc(100% - 40px), var(--max-width)); margin-inline: auto; padding: 1rem 0 1.5rem; }
  .nav-links li { border-bottom: 1px solid var(--border); }
  .nav-link { display: block; padding: 13px 2px; font-size: .95rem; }
  .nav-link::after { display: none; }
  .nav-contact { border: 0; border-radius: 0; }
  .language-switcher { width: min(calc(100% - 40px), var(--max-width)); margin: .9rem auto 1.4rem; }
  .language-switcher select { width: 100%; height: 42px; border-radius: var(--radius-sm); }
  .hero { min-height: auto; padding-top: calc(var(--header-height) + 80px); }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-content { max-width: 800px; }
  .portrait-wrap { width: min(64vw, 370px); margin-right: 0; justify-self: center; }
  .scroll-cue { display: none; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .lab-grid { grid-template-columns: 1fr; }
  .lab-copy { max-width: 720px; }
  .motocross-copy { width: min(46%, 390px); }
  .gaming-strip { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .container { width: min(calc(100% - 30px), var(--max-width)); }
  .section-heading h2, .contact-intro h2 { letter-spacing: -.04em; }
  .hero-content { min-width: 0; }
  .hero h1 { font-size: clamp(2rem, 9vw, 3.3rem); overflow-wrap: anywhere; }
  .hero h1 span { -webkit-text-stroke-width: .7px; }
  .hero-actions { align-items: stretch; }
  .hero-actions .button { flex: 1 1 100%; }
  .hero-actions .text-link { padding: 10px 4px; }
  .hero-meta { gap: 8px 14px; }
  .hero-meta li:not(:last-child)::after { margin-left: 14px; }
  .portrait-wrap { width: min(68vw, 310px); margin-top: 1.5rem; }
  .orbit { inset: -16px; }
  .orbit-two { inset: -32px; }
  .orbit-three { inset: -48px; }
  .solar-halo { inset: -12px; }
  .about-grid, .projects-heading, .contact-grid { grid-template-columns: 1fr; }
  .projects-heading > p { justify-self: start; }
  .skills-grid, .projects-grid, .education-grid { grid-template-columns: 1fr; }
  .skill-card-wide { grid-column: auto; min-height: 270px; }
  .project-card { min-height: 390px; }
  .timeline { margin-left: 0; }
  .timeline::before { left: 5px; }
  .timeline-item { grid-template-columns: 1fr; gap: .6rem; padding-left: 34px; }
  .timeline-marker { left: 0; }
  .timeline-date { text-align: left; }
  .lab-grid { gap: 2.5rem; }
  .diagram-services { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { gap: 3rem; }
  .motocross-visual { aspect-ratio: 3 / 2; }
  .motocross-copy { position: relative; right: auto; bottom: auto; width: auto; margin: -1px; padding: 1.5rem; border-radius: 0 0 var(--radius-md) var(--radius-md); backdrop-filter: none; -webkit-backdrop-filter: none; }
  .game-list { grid-template-columns: repeat(2, 1fr); }
  .footer-content { flex-direction: column; gap: .7rem; }
}

@media (max-width: 430px) {
  .hero-meta li::after { display: none; }
  .facts-list > div { grid-template-columns: 1fr; gap: .2rem; }
  .project-filters { flex-wrap: nowrap; margin-right: -15px; padding-right: 15px; overflow-x: auto; scrollbar-width: none; }
  .filter-button { flex: 0 0 auto; }
  .diagram-vms { grid-template-columns: 1fr; }
  .contact-row { grid-template-columns: 1fr; gap: .2rem; }
  .contact-row > div { display: block; }
  .copy-button { display: block; margin-top: 8px; }
  .game-list { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ================================================================
   Redesign « floating glass » inspiré des interfaces Apple
   ================================================================ */

body {
  background:
    radial-gradient(circle at 16% 8%, rgba(74,161,161,.095), transparent 30rem),
    radial-gradient(circle at 88% 34%, rgba(87,109,137,.07), transparent 34rem),
    #050607;
}

body::before {
  content: "";
  position: fixed;
  z-index: 0;
  inset: 0;
  opacity: .48;
  background:
    radial-gradient(circle at 8% 54%, rgba(74,161,161,.08), transparent 22%),
    radial-gradient(circle at 92% 78%, rgba(105,128,154,.055), transparent 24%);
  pointer-events: none;
}

.section-alt,
.passions-section,
.contact-section {
  background-color: transparent;
  background-image: none;
  border: 0;
}

.section:not(.hero) {
  padding-block: clamp(.85rem, 2vw, 1.5rem);
  overflow: visible;
}

.site-header {
  padding-top: 10px;
  background: transparent;
  border: 0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-header.scrolled { background: transparent; border: 0; }

.nav {
  height: 58px;
  padding: 8px 10px 8px 12px;
  background: rgba(15,17,19,.7);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  box-shadow: 0 12px 38px rgba(0,0,0,.24), inset 0 1px 0 rgba(255,255,255,.055);
  backdrop-filter: blur(24px) saturate(145%);
  -webkit-backdrop-filter: blur(24px) saturate(145%);
  transition: background 400ms ease, border-color 400ms ease, box-shadow 400ms ease;
}

.site-header.scrolled .nav {
  background: rgba(10,12,13,.88);
  border-color: rgba(255,255,255,.13);
  box-shadow: 0 16px 44px rgba(0,0,0,.36), inset 0 1px 0 rgba(255,255,255,.06);
}

.brand-mark { background: linear-gradient(145deg, rgba(74,161,161,.18), rgba(74,161,161,.035)); }
.nav-link { font-size: .8rem; }
.nav-contact { background: rgba(255,255,255,.035); }
.language-switcher select { background: rgba(255,255,255,.04); }

.hero {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 64px;
}

.hero-grid,
.section:not(.hero) > .container {
  --card-rotate-x: 0deg;
  --card-rotate-y: 0deg;
  --card-lift: 0px;
  --glow-x: 50%;
  --glow-y: 50%;
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(145deg, rgba(255,255,255,.072), rgba(255,255,255,.022) 42%, rgba(74,161,161,.018)),
    rgba(13,15,17,.72);
  border: 1px solid rgba(255,255,255,.105);
  border-radius: clamp(28px, 3vw, 42px);
  box-shadow:
    0 34px 90px rgba(0,0,0,.3),
    0 8px 24px rgba(0,0,0,.18),
    inset 0 1px 0 rgba(255,255,255,.075);
  backdrop-filter: blur(28px) saturate(135%);
  -webkit-backdrop-filter: blur(28px) saturate(135%);
  transform: perspective(1600px) rotateX(var(--card-rotate-x)) rotateY(var(--card-rotate-y)) translate3d(0, var(--card-lift), 0);
  transform-style: preserve-3d;
  transition: transform 650ms cubic-bezier(.16,1,.3,1), border-color 500ms ease, box-shadow 650ms cubic-bezier(.16,1,.3,1);
}

.hero-grid {
  padding: clamp(2rem, 4.5vw, 4rem);
  background:
    linear-gradient(145deg, rgba(255,255,255,.07), rgba(255,255,255,.02) 42%, rgba(74,161,161,.018)),
    rgba(13,15,17,.86);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* Le contenu principal reste immédiatement lisible au chargement. */
.hero .reveal {
  opacity: 1;
  transform: none;
}

.section:not(.hero) > .container {
  padding: clamp(2rem, 5vw, 5rem);
}

.hero-grid::before,
.section:not(.hero) > .container::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  background: radial-gradient(520px circle at var(--glow-x) var(--glow-y), rgba(144,207,207,.1), transparent 45%);
  transition: opacity 500ms ease;
  pointer-events: none;
}

.hero-grid::after,
.section:not(.hero) > .container::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(115deg, rgba(255,255,255,.08), transparent 15%, transparent 82%, rgba(74,161,161,.025));
  mask-image: linear-gradient(black, transparent 28%);
  pointer-events: none;
}

.hero-grid > *,
.section:not(.hero) > .container > * { position: relative; z-index: 2; }

.hero-grid.interactive-card:hover,
.section:not(.hero) > .container.interactive-card:hover {
  --card-lift: -7px;
  border-color: rgba(255,255,255,.17);
  box-shadow:
    0 48px 120px rgba(0,0,0,.4),
    0 12px 32px rgba(0,0,0,.2),
    inset 0 1px 0 rgba(255,255,255,.11);
  transition-duration: 150ms, 400ms, 400ms;
}

.hero-grid.interactive-card:hover::before,
.section:not(.hero) > .container.interactive-card:hover::before { opacity: 1; }

.section-heading { margin-bottom: clamp(2.8rem, 5vw, 4.6rem); }
.section-heading h2, .contact-intro h2 { letter-spacing: -.06em; }

.button {
  min-height: 50px;
  padding-inline: 21px;
  border-radius: 999px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12);
  transition: transform 450ms cubic-bezier(.16,1,.3,1), box-shadow 450ms ease, background 350ms ease, border-color 350ms ease;
}

.button:hover { transform: translateY(-3px) scale(1.015); }
.button-primary { background: linear-gradient(180deg, var(--accent-light), var(--accent)); }
.button-secondary { background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.018)); }

.facts-card,
.skill-card,
.project-card,
.education-card,
.lab-diagram,
.gaming-strip,
.motocross-feature {
  background:
    linear-gradient(145deg, rgba(255,255,255,.065), rgba(255,255,255,.016)),
    rgba(10,12,13,.7);
  border-color: rgba(255,255,255,.095);
  border-radius: clamp(20px, 2.3vw, 30px);
  box-shadow: 0 18px 48px rgba(0,0,0,.2), inset 0 1px 0 rgba(255,255,255,.045);
}

.skill-card,
.project-card,
.education-card,
.game-list li {
  transition: transform 600ms cubic-bezier(.16,1,.3,1), border-color 450ms ease, background 450ms ease, box-shadow 500ms ease;
}

.skill-card:hover,
.project-card:hover,
.education-card:hover {
  transform: translateY(-9px) scale(1.012);
  background:
    linear-gradient(145deg, rgba(255,255,255,.09), rgba(255,255,255,.024)),
    rgba(13,16,17,.78);
  border-color: rgba(114,187,187,.3);
  box-shadow: 0 28px 70px rgba(0,0,0,.31), inset 0 1px 0 rgba(255,255,255,.08);
}

.skill-list li,
.tags li,
.diagram-services span {
  background: rgba(255,255,255,.035);
  border-color: rgba(255,255,255,.075);
  border-radius: 999px;
}

.project-filters {
  width: fit-content;
  padding: 6px;
  background: rgba(255,255,255,.025);
  border: 1px solid rgba(255,255,255,.075);
  border-radius: 999px;
}

.filter-button { border-color: transparent; }
.filter-button.active { box-shadow: inset 0 1px 0 rgba(255,255,255,.06); }

.timeline-content { padding: 0 0 2.4rem; }
.diagram-host, .diagram-vms > div { border-radius: 16px; }
.contact-section { padding-block: clamp(.85rem, 2vw, 1.5rem) clamp(2.5rem, 5vw, 5rem); }
.site-footer { background: transparent; border: 0; }

@media (max-width: 980px) {
  .site-header { padding-top: 7px; }
  .nav { height: 56px; border-radius: 18px; }
  .nav-panel {
    top: calc(var(--header-height) + 4px);
    right: 15px;
    left: 15px;
    width: auto;
    background: rgba(10,12,13,.94);
    border: 1px solid transparent;
    border-radius: 24px;
    box-shadow: 0 28px 70px rgba(0,0,0,.42);
    backdrop-filter: blur(28px) saturate(140%);
    -webkit-backdrop-filter: blur(28px) saturate(140%);
  }
  .nav-panel.open { border-color: rgba(255,255,255,.11); }
  .hero { padding-top: calc(var(--header-height) + 38px); }
  .hero-grid { padding: clamp(1.7rem, 5vw, 3rem); }
}

@media (max-width: 720px) {
  .section:not(.hero) { padding-block: .65rem; }
  .hero-grid,
  .section:not(.hero) > .container {
    border-radius: 26px;
    transform: none !important;
  }
  .hero-grid { padding: 1.25rem; }
  .section:not(.hero) > .container { padding: clamp(1.35rem, 6vw, 2rem); }
  .hero-grid::before,
  .section:not(.hero) > .container::before { display: none; }
  .skill-card:hover,
  .project-card:hover,
  .education-card:hover { transform: translateY(-4px); }
  .project-filters { width: auto; border-radius: 18px 0 0 18px; }
  .contact-section { padding-bottom: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-grid,
  .section:not(.hero) > .container,
  .skill-card,
  .project-card,
  .education-card { transform: none !important; }
}

/* ================================================================
   Navigation immersive et micro-interactions premium
   ================================================================ */

html {
  scroll-padding-top: 0;
  scroll-snap-type: y proximity;
}

body {
  --section-progress: 0%;
  overscroll-behavior-y: none;
}

main,
.site-footer {
  transition: opacity 180ms ease, filter 180ms ease;
}

body.language-leaving main,
body.language-leaving .site-footer {
  opacity: .62;
  filter: blur(2px);
}

.section {
  min-height: 100svh;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.section:not(.hero) {
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + clamp(1.4rem, 3vh, 2.5rem));
  padding-bottom: clamp(1.5rem, 3vh, 2.5rem);
}

.site-footer { scroll-snap-align: end; }

.site-header .nav {
  opacity: 1;
  transition:
    opacity 700ms cubic-bezier(.16,1,.3,1),
    transform 700ms cubic-bezier(.16,1,.3,1),
    background 400ms ease,
    border-color 400ms ease,
    box-shadow 400ms ease;
}

.site-header.is-idle:not(:hover):not(:focus-within) .nav {
  opacity: .76;
  transform: translateY(-2px) scale(.998);
}

.site-header.scrolled .nav,
.site-header.is-navigating .nav {
  opacity: 1;
  border-color: rgba(114,187,187,.2);
  box-shadow:
    0 18px 52px rgba(0,0,0,.38),
    0 0 28px rgba(74,161,161,.055),
    inset 0 1px 0 rgba(255,255,255,.075);
}

.nav-links { gap: clamp(1rem, 2.3vw, 2rem); }

.nav-link {
  transition: color 350ms ease, text-shadow 350ms ease, opacity 350ms ease;
}

.nav-link::after {
  height: 2px;
  border-radius: 99px;
  box-shadow: 0 0 12px rgba(114,187,187,.55);
  transform-origin: center;
  transition: transform 500ms cubic-bezier(.16,1,.3,1);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  text-shadow: 0 0 18px rgba(114,187,187,.22);
}

.language-switcher {
  transition: transform 450ms cubic-bezier(.16,1,.3,1), filter 350ms ease;
}

.language-switcher:hover,
.language-switcher:focus-within {
  transform: translateY(-2px);
  filter: drop-shadow(0 0 9px rgba(74,161,161,.18));
}

.language-switcher select {
  transition: border-color 350ms ease, background 350ms ease, box-shadow 350ms ease;
}

.language-switcher select:focus-visible {
  box-shadow: 0 0 0 3px rgba(74,161,161,.14), 0 0 22px rgba(74,161,161,.12);
}

.hero-grid,
.section:not(.hero) > .container {
  scroll-margin-top: 0;
}

.hero-grid::before,
.section:not(.hero) > .container::before {
  background:
    radial-gradient(520px circle at var(--glow-x) var(--glow-y), rgba(144,207,207,.11), transparent 45%),
    radial-gradient(circle at 12% 10%, rgba(74,161,161,.035), transparent 32%);
}

.section.is-active > .container,
.hero.is-active .hero-grid {
  border-color: rgba(114,187,187,.19);
  box-shadow:
    0 38px 100px rgba(0,0,0,.34),
    0 0 46px rgba(74,161,161,.035),
    inset 0 1px 0 rgba(255,255,255,.09);
}

.button,
.filter-button,
.section-nav-button {
  --magnetic-x: 0px;
  --magnetic-y: 0px;
  transform: translate3d(var(--magnetic-x), var(--magnetic-y), 0);
  will-change: transform;
}

.button:hover {
  transform: translate3d(var(--magnetic-x), calc(var(--magnetic-y) - 3px), 0) scale(1.015);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.14), 0 10px 28px rgba(0,0,0,.24), 0 0 24px rgba(74,161,161,.1);
}

.button:active,
.filter-button:active,
.section-nav-button:active {
  transform: translate3d(var(--magnetic-x), var(--magnetic-y), 0) scale(.96);
  transition-duration: 90ms;
}

.button-primary {
  background-image: linear-gradient(110deg, var(--accent-light), var(--accent) 48%, #63b4b4 72%, var(--accent-light));
  background-size: 220% 100%;
  animation: premiumGradientDrift 12s ease-in-out infinite alternate;
  box-shadow: 0 0 28px rgba(74,161,161,.09), inset 0 1px 0 rgba(255,255,255,.2);
}

.text-link,
.contact-row a,
.footer-links a {
  transition: color 350ms ease, opacity 350ms ease, text-shadow 350ms ease;
}

.text-link:hover,
.contact-row a:hover,
.footer-links a:hover {
  text-shadow: 0 0 16px rgba(114,187,187,.24);
}

/* Les délais sont injectés par JavaScript selon l'ordre du contenu. */
.js .section .reveal {
  opacity: 0;
  transform: translate3d(0, 24px, 0) scale(.992);
  transition:
    opacity 620ms cubic-bezier(.16,1,.3,1) var(--reveal-delay, 0ms),
    transform 720ms cubic-bezier(.16,1,.3,1) var(--reveal-delay, 0ms);
}

.js .section .reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

.js .hero .reveal { opacity: 0; transform: translate3d(0, 18px, 0) scale(.995); }
.js .hero .reveal.is-visible { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }

/* Cartes projet : profondeur contenue, voile lumineux et repère d'ouverture. */
.project-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0;
  background: radial-gradient(circle at 82% 12%, rgba(114,187,187,.14), transparent 35%);
  transform: scale(1.08);
  transition: opacity 550ms ease, transform 700ms cubic-bezier(.16,1,.3,1);
  pointer-events: none;
}

.project-card::after {
  content: "↗";
  position: absolute;
  top: 1.35rem;
  right: 1.35rem;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--accent-light);
  background: rgba(74,161,161,.08);
  border: 1px solid rgba(114,187,187,.18);
  border-radius: 50%;
  opacity: 0;
  transform: translate3d(-7px, 7px, 0) scale(.86);
  transition: opacity 400ms ease, transform 550ms cubic-bezier(.16,1,.3,1), box-shadow 400ms ease;
  pointer-events: none;
}

.project-card:hover::before { opacity: 1; transform: scale(1); }
.project-card:hover::after {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  box-shadow: 0 0 20px rgba(74,161,161,.12);
}

.project-card h3 { transition: color 350ms ease, transform 550ms cubic-bezier(.16,1,.3,1); }
.project-card:hover h3 { color: #fff; transform: translateY(-2px); }
.project-card summary { transition: color 350ms ease, letter-spacing 450ms ease; }
.project-card summary:hover { color: var(--accent-light); letter-spacing: .015em; }

/* Contrôles HUD verticaux, compacts et utilisables au clavier. */
.section-controls {
  position: fixed;
  z-index: 85;
  top: 50%;
  right: clamp(10px, 2vw, 30px);
  display: grid;
  justify-items: center;
  gap: 9px;
  width: 52px;
  padding: 11px 7px;
  background: rgba(12,14,16,.66);
  border: 1px solid rgba(255,255,255,.095);
  border-radius: 22px;
  box-shadow: 0 16px 45px rgba(0,0,0,.3), 0 0 24px rgba(74,161,161,.035), inset 0 1px 0 rgba(255,255,255,.06);
  opacity: .7;
  transform: translateY(-50%);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  transition: opacity 450ms ease, border-color 450ms ease, box-shadow 450ms ease;
}

.section-controls:hover,
.section-controls:focus-within {
  opacity: 1;
  border-color: rgba(114,187,187,.22);
  box-shadow: 0 18px 54px rgba(0,0,0,.38), 0 0 28px rgba(74,161,161,.08), inset 0 1px 0 rgba(255,255,255,.08);
}

.section-counter {
  display: grid;
  grid-template-columns: auto 10px auto;
  gap: 3px;
  align-items: center;
  margin: 0 0 2px;
  color: var(--subtle);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .55rem;
  line-height: 1;
  letter-spacing: .03em;
}

.section-counter span:first-child { color: var(--accent-light); }
.section-counter i { height: 1px; background: var(--border); }

.section-nav-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  color: var(--text);
  background: rgba(255,255,255,.025);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 13px;
  cursor: pointer;
  transition: color 350ms ease, background 350ms ease, border-color 350ms ease, box-shadow 400ms ease, transform 450ms cubic-bezier(.16,1,.3,1), opacity 350ms ease;
}

.section-nav-button span { transition: transform 450ms cubic-bezier(.16,1,.3,1); }
.section-prev:hover span { transform: translateY(-3px); }
.section-next:hover span { transform: translateY(3px); }

.section-nav-button:hover:not(:disabled) {
  color: var(--accent-light);
  background: rgba(74,161,161,.1);
  border-color: rgba(114,187,187,.32);
  box-shadow: 0 0 20px rgba(74,161,161,.12), inset 0 1px 0 rgba(255,255,255,.07);
}

.section-nav-button:disabled {
  opacity: .18;
  cursor: default;
}

.section-progress-track {
  position: relative;
  width: 2px;
  height: 46px;
  overflow: hidden;
  background: rgba(255,255,255,.08);
  border-radius: 99px;
}

.section-progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--section-progress);
  min-height: 4px;
  background: linear-gradient(var(--accent-light), var(--accent));
  border-radius: inherit;
  box-shadow: 0 0 8px rgba(114,187,187,.5);
  transition: height 600ms cubic-bezier(.16,1,.3,1);
}

@keyframes premiumGradientDrift {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}

@media (min-width: 981px) and (min-height: 700px) {
  html { scroll-snap-type: y mandatory; }
}

@media (max-width: 980px) {
  html { scroll-snap-type: y proximity; }
  .section { scroll-snap-stop: normal; }
  .site-header.is-idle:not(:hover):not(:focus-within) .nav { opacity: .88; transform: none; }
  .section-controls { right: 12px; }
}

@media (max-width: 720px) {
  body { overscroll-behavior-y: auto; }
  .section { min-height: 100svh; }
  .section:not(.hero) {
    display: block;
    padding-top: calc(var(--header-height) + 1rem);
    padding-bottom: 1rem;
  }
  .section-controls {
    top: auto;
    right: 10px;
    bottom: max(12px, env(safe-area-inset-bottom));
    grid-template-columns: auto 36px 30px 36px;
    gap: 6px;
    width: auto;
    padding: 6px 7px;
    border-radius: 18px;
    opacity: .62;
    transform: none;
  }
  .section-counter { grid-template-columns: auto 7px auto; margin: 0 2px 0 0; }
  .section-nav-button { width: 36px; height: 36px; }
  .section-progress-track { width: 30px; height: 2px; }
  .section-progress-fill {
    width: var(--section-progress);
    min-width: 3px;
    height: 100%;
    min-height: 0;
    transition: width 600ms cubic-bezier(.16,1,.3,1);
  }
  .project-card::after { opacity: .72; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; scroll-snap-type: none; }
  body { overscroll-behavior-y: auto; }
  main, .site-footer { transition: none; }
  .js .section .reveal,
  .js .hero .reveal { opacity: 1; transform: none; transition: none; }
  .button-primary { animation: none; }
  .site-header.is-idle:not(:hover):not(:focus-within) .nav { opacity: 1; transform: none; }
  .section-progress-fill { transition: none; }
}

/* ================================================================
   Navigation plein écran type Reels — comportement de scroll seul
   ================================================================ */

html {
  height: 100%;
  overflow-y: auto;
  overscroll-behavior-y: none;
  scroll-snap-type: y mandatory;
}

body {
  min-height: 100%;
  overscroll-behavior-y: none;
}

.section {
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100dvh;
  max-height: 100vh;
  max-height: 100dvh;
  overflow-x: hidden;
  overflow-x: clip;
  overflow-y: auto;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  scrollbar-width: none;
  touch-action: pan-y pinch-zoom;
  -webkit-overflow-scrolling: touch;
}

.section::-webkit-scrollbar { display: none; }
.js .section { overscroll-behavior-y: contain; }

@supports (align-items: safe center) {
  .hero,
  .section:not(.hero) { align-items: safe center; }
}

@media (max-width: 980px) {
  html { scroll-snap-type: y mandatory; }
  .section { scroll-snap-stop: always; }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
    scroll-snap-type: y mandatory;
  }
}

/* ================================================================
   Deck horizontal — les sections deviennent de grandes cartes/pages
   ================================================================ */

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  scroll-snap-type: none;
}

main#main-content {
  --deck-gutter: clamp(14px, 2vw, 28px);
  --deck-gap: clamp(10px, 1vw, 16px);
  --deck-peek: clamp(18px, 2vw, 32px);
  --deck-card-width: calc(100vw - var(--deck-gutter) - var(--deck-gutter) - var(--deck-peek));
  position: relative;
  z-index: 1;
  display: flex;
  gap: var(--deck-gap);
  width: 100%;
  height: 100vh;
  height: 100dvh;
  padding: 0 calc(var(--deck-gutter) + var(--deck-peek)) 0 var(--deck-gutter);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scroll-padding-inline-start: var(--deck-gutter);
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  touch-action: pan-x pinch-zoom;
  perspective: 1800px;
  -webkit-overflow-scrolling: touch;
}

main#main-content::-webkit-scrollbar { display: none; }
main#main-content.is-dragging { scroll-behavior: auto; scroll-snap-type: none; cursor: grabbing; }

main#main-content > .section {
  --deck-scale: .945;
  --deck-rotate-y: 0deg;
  --deck-opacity: .68;
  --deck-depth: -46px;
  flex: 0 0 var(--deck-card-width);
  width: var(--deck-card-width);
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100dvh;
  max-height: 100vh;
  max-height: 100dvh;
  overflow-x: hidden;
  overflow-x: clip;
  overflow-y: auto;
  background-color: rgba(8,9,10,.72);
  border: 1px solid rgba(255,255,255,.055);
  border-radius: clamp(24px, 2.5vw, 38px);
  box-shadow: 0 28px 74px rgba(0,0,0,.26);
  opacity: var(--deck-opacity);
  scroll-snap-align: start;
  scroll-snap-stop: always;
  scrollbar-width: none;
  touch-action: pan-y pinch-zoom;
  transform: perspective(1800px) translate3d(0, 0, var(--deck-depth)) rotateY(var(--deck-rotate-y)) scale(var(--deck-scale));
  transform-origin: center;
  transform-style: preserve-3d;
  contain: layout paint style;
  transition:
    transform 680ms cubic-bezier(.16,1,.3,1),
    opacity 480ms ease,
    border-color 480ms ease,
    box-shadow 680ms cubic-bezier(.16,1,.3,1);
  will-change: auto;
  -webkit-overflow-scrolling: touch;
}

main#main-content > .section::-webkit-scrollbar { display: none; }

main#main-content > .section.is-active {
  --deck-scale: 1;
  --deck-opacity: 1;
  --deck-depth: 0px;
  border-color: rgba(114,187,187,.14);
  box-shadow: 0 36px 96px rgba(0,0,0,.34), 0 0 38px rgba(74,161,161,.025);
}

main#main-content > .section.is-active,
main#main-content > .section.is-nearby { will-change: transform, opacity; }

/* Les animations propres à l'accueil ne tournent pas lorsqu'une autre carte est affichée. */
.hero:not(.is-active) .solar-halo,
.hero:not(.is-active) .portrait-frame::before,
.hero:not(.is-active) .orbit,
.hero:not(.is-active) .scroll-cue span::after { animation-play-state: paused; }

.animations-paused .star,
.animations-paused .celestial,
.animations-paused .shooting-star,
.animations-paused .solar-halo,
.animations-paused .portrait-frame::before,
.animations-paused .orbit,
.animations-paused .button-primary { animation-play-state: paused !important; }

main#main-content.is-dragging > .section { transition: none; }

.section-prev:hover span { transform: translateX(-3px); }
.section-next:hover span { transform: translateX(3px); }

/* Le footer reste rattaché visuellement à la dernière carte. */
.site-footer {
  position: fixed;
  z-index: 70;
  right: var(--deck-gutter, 20px);
  bottom: 0;
  left: var(--deck-gutter, 20px);
  opacity: 0;
  pointer-events: none;
  transform: translate3d(0, 110%, 0);
  transition: opacity 380ms ease, transform 520ms cubic-bezier(.16,1,.3,1);
}

body.contact-page-active .site-footer {
  opacity: 1;
  pointer-events: auto;
  transform: translate3d(0, 0, 0);
}

body.contact-page-active #contact { padding-bottom: clamp(7rem, 15vh, 10rem); }

/* Aide ponctuelle : explique la navigation à la molette sans masquer le contenu. */
.scroll-tutorial {
  position: fixed;
  z-index: 84;
  bottom: clamp(76px, 9vh, 96px);
  left: 50%;
  display: none;
  align-items: center;
  gap: 11px;
  max-width: min(340px, calc(100vw - 48px));
  padding: 10px 13px;
  border: 1px solid rgba(114,187,187,.18);
  border-radius: 16px;
  background: rgba(12,15,17,.78);
  box-shadow: 0 16px 44px rgba(0,0,0,.34), 0 0 24px rgba(74,161,161,.045);
  color: var(--text);
  opacity: 0;
  pointer-events: none;
  transform: translate3d(-50%, 12px, 0) scale(.98);
  transition:
    opacity 360ms ease,
    transform 480ms cubic-bezier(.16,1,.3,1),
    visibility 0s linear 480ms;
  visibility: hidden;
  -webkit-backdrop-filter: blur(14px) saturate(115%);
  backdrop-filter: blur(14px) saturate(115%);
}

.scroll-tutorial.is-visible {
  opacity: 1;
  transform: translate3d(-50%, 0, 0) scale(1);
  transition-delay: 0s;
  visibility: visible;
}

.scroll-tutorial-hand {
  display: grid;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(114,187,187,.2);
  border-radius: 11px;
  background: rgba(74,161,161,.09);
  color: #72bbbb;
  font-size: 1.25rem;
  line-height: 1;
  text-shadow: 0 0 12px rgba(74,161,161,.32);
  animation: tutorialHandScroll 1.8s cubic-bezier(.45,0,.2,1) infinite;
}

.scroll-tutorial p { display: grid; gap: 2px; margin: 0; line-height: 1.25; }
.scroll-tutorial strong { color: var(--text); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.scroll-tutorial p span { color: var(--muted); font-size: .72rem; }
.scroll-tutorial-direction { color: var(--accent); font-size: .9rem; opacity: .72; animation: tutorialArrowScroll 1.8s ease-in-out infinite; }

@keyframes tutorialHandScroll {
  0%, 100% { transform: translate3d(0, -3px, 0); }
  52% { transform: translate3d(0, 5px, 0); }
}

@keyframes tutorialArrowScroll {
  0%, 100% { opacity: .35; transform: translate3d(0, -2px, 0); }
  52% { opacity: 1; transform: translate3d(0, 3px, 0); }
}

@media (hover: hover) and (pointer: fine) and (min-width: 721px) {
  .scroll-tutorial { display: flex; }
}

@media (max-width: 980px) {
  main#main-content {
    --deck-gutter: 12px;
    --deck-gap: 12px;
    --deck-peek: 24px;
    --deck-card-width: calc(100vw - 48px);
    scroll-snap-type: x mandatory;
  }
}

@media (max-width: 720px) {
  main#main-content {
    --deck-gutter: 6px;
    --deck-gap: 8px;
    --deck-peek: 10px;
    --deck-card-width: calc(100vw - 22px);
  }

  main#main-content > .section {
    border-radius: 28px;
    box-shadow: 0 20px 56px rgba(0,0,0,.28);
  }

  .site-footer { right: 6px; left: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  main#main-content { scroll-behavior: auto; }
  main#main-content > .section {
    --deck-scale: 1 !important;
    --deck-rotate-y: 0deg !important;
    --deck-opacity: 1 !important;
    --deck-depth: 0px !important;
    transition: none;
  }

  .scroll-tutorial-hand,
  .scroll-tutorial-direction { animation: none; }
}