/* Teavanui.Tech — thème sombre */
:root {
  --bg: #0b0d12;
  --bg-2: #10131a;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --fg: #eef0f4;
  --fg-muted: #9aa3b2;
  --fg-dim: #6b7280;
  --accent: #2bd4c6;
  --accent-2: #6d8bff;
  --accent-3: #c084fc;
  --font-head: "Outfit", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius: 18px;
  --max: 1140px;
  --gutter: 16px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: dark; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: rgba(43, 212, 198, 0.35); }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.1; margin: 0 0 0.5em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 6vw, 4.4rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
a { color: var(--accent); }
svg { display: block; }

.gradient-text {
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.accent { color: var(--accent); }
.brand-name .accent { font-size: 0.74em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(43, 212, 198, 0.6);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(43, 212, 198, 0.6); }
  70% { box-shadow: 0 0 0 12px rgba(43, 212, 198, 0); }
  100% { box-shadow: 0 0 0 0 rgba(43, 212, 198, 0); }
}

/* Fond animé */
.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 55% at 50% 0%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 55% at 50% 0%, #000 20%, transparent 100%);
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  will-change: transform;
}
.orb-a { width: 620px; height: 620px; left: -160px; top: -200px; background: #178783; animation: drift 22s ease-in-out infinite alternate; }
.orb-b { width: 520px; height: 520px; right: -180px; top: 120px; background: #3b4fd8; animation: drift 28s ease-in-out infinite alternate-reverse; }
.orb-c { width: 420px; height: 420px; left: 40%; top: 55vh; background: #7c3aed; opacity: 0.3; animation: drift 34s ease-in-out infinite alternate; }
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(90px, 60px, 0) scale(1.12); }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px var(--gutter);
  background: rgba(11, 13, 18, 0.65);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--fg);
  font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em;
}
.brand-mark { width: 36px; height: 36px; display: block; }
.site-nav { display: flex; gap: 26px; align-items: center; }
.site-nav a {
  white-space: nowrap;
  position: relative;
  text-decoration: none; color: var(--fg-muted);
  font-weight: 500; font-size: 0.93rem;
  transition: color 0.2s;
}
.site-nav a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.site-nav a:hover { color: var(--fg); }
.site-nav a:not(.nav-cta):hover::after { transform: scaleX(1); }
.nav-cta {
  color: var(--bg) !important;
  background: var(--fg);
  padding: 9px 16px;
  border-radius: 999px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover { background: var(--accent); transform: translateY(-1px); }
@media (max-width: 640px) {
  .site-nav { gap: 14px; }
  .site-nav a:not(.nav-cta) { display: none; }
}

/* Sections */
.section, .hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 88px var(--gutter);
}
.section-head { max-width: 760px; margin-bottom: 48px; }
.section-intro { color: var(--fg-muted); font-size: 1.08rem; }

/* Hero */
.hero { padding-top: 110px; padding-bottom: 60px; max-width: 980px; }
.hero h1 .line { display: block; }
.lead { font-size: 1.22rem; color: var(--fg-muted); max-width: 640px; margin-top: 1.4rem; }
.hero-actions, .contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-family: var(--font-head);
  font-weight: 600; font-size: 0.98rem; line-height: 1.2;
  min-height: 46px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s, background 0.2s, border-color 0.2s;
  overflow: hidden;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  color: var(--bg);
  background: linear-gradient(90deg, var(--accent), #5ee7d9);
  box-shadow: 0 0 0 1px rgba(43,212,198,0.3), 0 10px 30px -10px rgba(43, 212, 198, 0.55);
}
.btn-primary:hover { box-shadow: 0 0 0 1px rgba(43,212,198,0.5), 0 18px 40px -12px rgba(43, 212, 198, 0.75); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--fg); background: var(--surface); }
.btn-ghost:hover { border-color: var(--fg-muted); background: var(--surface-hover); }

/* Bandeau défilant */
.marquee {
  margin-top: 64px;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex; gap: 0; width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee-track span {
  padding: 14px 28px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-dim);
  white-space: nowrap;
}
.marquee-track span::before { content: "/ "; color: var(--accent); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Cartes services */
.grid { display: grid; gap: 18px; }
.services { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.3s, background 0.3s;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(43, 212, 198, 0.16), transparent 45%);
  opacity: 0; transition: opacity 0.4s;
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); background: var(--surface-hover); }
.card:hover::before { opacity: 1; }
.card p { color: var(--fg-muted); margin: 0; font-size: 0.97rem; }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(43,212,198,0.18), rgba(109,139,255,0.14));
  border: 1px solid rgba(43,212,198,0.25);
  display: grid; place-items: center; margin-bottom: 18px;
  transition: transform 0.35s var(--ease);
}
.card:hover .card-icon { transform: rotate(-6deg) scale(1.06); }
.card-icon svg {
  width: 24px; height: 24px; fill: none; stroke: var(--accent);
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.card-accent {
  background: linear-gradient(135deg, rgba(43,212,198,0.14), rgba(109,139,255,0.10) 60%, rgba(192,132,252,0.12));
  border-color: rgba(43,212,198,0.3);
}

/* Étapes */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.steps li {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform 0.35s var(--ease), border-color 0.3s;
}
.steps li::after {
  content: "";
  position: absolute; left: 26px; right: 26px; top: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 0 0 2px 2px;
  transform: scaleX(0.35); transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.steps li:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.steps li:hover::after { transform: scaleX(1); }
.steps p { color: var(--fg-muted); margin: 0; font-size: 0.97rem; }
.step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem; letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 14px;
}

/* Chiffres */
.stats {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-bottom: 48px;
}
.stat {
  padding: 22px 26px;
  border-left: 2px solid var(--accent);
  background: linear-gradient(90deg, rgba(43,212,198,0.08), transparent 70%);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 2.6rem; font-weight: 700; line-height: 1; letter-spacing: -0.03em;
  margin-bottom: 6px;
}
.stat-label { color: var(--fg-muted); font-size: 0.95rem; }

/* Références */
.refs { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 0 32px; }
.ref { padding: 24px 0; border-top: 1px solid var(--line); }
.ref h3 { position: relative; padding-left: 18px; }
.ref h3::before {
  content: ""; position: absolute; left: 0; top: 0.5em; width: 8px; height: 8px;
  border-radius: 2px; background: var(--accent); transform: rotate(45deg);
}
.ref p { color: var(--fg-muted); margin: 0; font-size: 0.97rem; }

/* Contact */
.contact-panel {
  position: relative;
  padding: clamp(36px, 6vw, 72px);
  border-radius: 28px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(600px circle at 0% 0%, rgba(43,212,198,0.22), transparent 55%),
    radial-gradient(500px circle at 100% 100%, rgba(109,139,255,0.22), transparent 55%),
    var(--bg-2);
  overflow: hidden;
}
.contact-panel .section-intro { max-width: 620px; }

/* Pied de page */
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px var(--gutter) 56px;
  color: var(--fg-dim);
  font-size: 0.88rem;
  border-top: 1px solid var(--line);
}
.site-footer p { margin: 0 0 4px; }
.site-footer strong { color: var(--fg-muted); }

/* Apparition au défilement */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--d, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }
.hero h1.reveal .line {
  display: block;
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.hero h1.reveal.is-in .line { opacity: 1; transform: none; }
.hero h1.reveal.is-in .line:nth-child(2) { transition-delay: 0.12s; }
.hero h1.reveal.is-in .line:nth-child(3) { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .hero h1.reveal .line { opacity: 1; transform: none; transition: none; }
  .orb, .marquee-track, .pulse { animation: none; }
  .card, .steps li, .btn { transition: none; }
}

/* ── Effets « tech » ─────────────────────────────────────────── */
.progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  transform: scaleX(0); transform-origin: left; z-index: 20;
}

.hero { position: relative; max-width: var(--max); padding-top: 72px; }
.net {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: -1; opacity: 0.9;
  mask-image: linear-gradient(180deg, #000 70%, transparent);
  -webkit-mask-image: linear-gradient(180deg, #000 70%, transparent);
}
.hero-inner {
  display: grid; gap: 48px; align-items: center;
  grid-template-columns: 1.15fr 0.85fr;
}
@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; } }

.typed-line {
  font-family: var(--font-head);
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  font-weight: 500;
  margin-top: 1.2rem;
  min-height: 1.6em;
}
.typed-prefix { color: var(--fg-muted); margin-right: 0.35em; }
.typed { color: var(--accent); }
.caret {
  display: inline-block; width: 2px; height: 1.1em; margin-left: 3px;
  background: var(--accent); vertical-align: -0.15em;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* Console */
.hero-visual { position: relative; perspective: 1200px; }
.console {
  border-radius: 16px;
  border: 1px solid var(--line-strong);
  background: rgba(10, 12, 18, 0.72);
  backdrop-filter: blur(10px);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,0.8), 0 0 0 1px rgba(43,212,198,0.08), 0 0 60px -20px rgba(43,212,198,0.35);
  overflow: hidden;
  transform: rotateY(-6deg) rotateX(4deg);
  transition: transform 0.6s var(--ease);
  animation: float 7s ease-in-out infinite;
}
.hero-visual:hover .console { transform: rotateY(0) rotateX(0); }
@keyframes float { 50% { translate: 0 -8px; } }
.console-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 12px 14px; border-bottom: 1px solid var(--line);
}
.console-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.14); }
.console-bar span:nth-child(1) { background: #ff5f57; }
.console-bar span:nth-child(2) { background: #febc2e; }
.console-bar span:nth-child(3) { background: #28c840; }
.console-bar em { margin-left: 10px; font-style: normal; font-family: var(--font-mono); font-size: 0.72rem; color: var(--fg-dim); }
.console-body {
  margin: 0; padding: 18px 18px 22px;
  font-family: var(--font-mono); font-size: 0.8rem; line-height: 1.75;
  color: var(--fg-muted); min-height: 230px; white-space: pre-wrap;
}
.console-body .ok { color: var(--accent); }
.console-body .cmd { color: var(--fg); }
.console-body .dim { color: var(--fg-dim); }
.console-body .warn { color: #febc2e; }

.chip {
  position: absolute;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 12px;
  background: rgba(16, 19, 26, 0.85);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
  font-size: 0.8rem; color: var(--fg-muted);
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.8);
}
.chip strong { color: var(--fg); font-weight: 600; }
.chip-dot { width: 8px; height: 8px; border-radius: 50%; background: #28c840; box-shadow: 0 0 10px #28c840; }
.chip-a { top: -18px; right: -10px; animation: float 6s ease-in-out infinite 0.8s; }
.chip-b { bottom: -18px; left: -14px; animation: float 8s ease-in-out infinite 1.6s; }
@media (max-width: 900px) { .chip-a { right: 4px; } .chip-b { left: 4px; } }

/* Cartes en 3D */
.card, .steps li { transform-style: preserve-3d; }
.card { transition: transform 0.15s linear, border-color 0.3s, background 0.3s; }
.card:hover { transform: perspective(900px) rotateX(var(--rx, 0)) rotateY(var(--ry, 0)) translateY(-4px); }

/* Reflet qui balaie le bouton principal */
.btn-primary::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 40%;
  left: -60%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.55), transparent);
  transform: skewX(-20deg);
  animation: sheen 3.8s ease-in-out infinite;
}
@keyframes sheen { 0%, 60% { left: -60%; } 100% { left: 130%; } }

/* Scan lumineux sur les titres de section */
.section-head h2 { position: relative; }

@media (prefers-reduced-motion: reduce) {
  .console, .chip, .btn-primary::after, .caret { animation: none; }
  .net { display: none; }
}

@media (max-width: 480px) {
  .eyebrow { font-size: 0.66rem; letter-spacing: 0.1em; }
  .hero { padding-top: 48px; }
}

/* ── Navigation en 3D ──────────────────────────────────────── */
/* Les sections arrivent du fond de la scène au défilement. */
.section.depth {
  transform-origin: 50% 0%;
  will-change: transform, opacity;
  backface-visibility: hidden;
}
.section.depth.is-near { will-change: auto; transform: none !important; opacity: 1 !important; }

/* Menu : chaque lien est un volume qui bascule au survol. */
.site-nav { perspective: 600px; }
.site-nav a.flip {
  display: inline-block;
  transform-style: preserve-3d;
  transition: transform 0.45s var(--ease);
  padding: 4px 0;
}
.site-nav a.flip span { display: block; backface-visibility: hidden; }
.site-nav a.flip::before {
  content: attr(data-label);
  position: absolute; left: 0; top: 4px;
  color: var(--accent);
  transform: rotateX(90deg) translateZ(0.6em);
  transform-origin: 50% 50%;
  backface-visibility: hidden;
}
.site-nav a.flip::after { display: none; }
.site-nav a.flip span { transform: translateZ(0.6em); }
.site-nav a.flip:hover { transform: rotateX(-90deg); color: var(--fg-muted); }

@media (prefers-reduced-motion: reduce) {
  .section.depth { transform: none !important; opacity: 1 !important; }
  .site-nav a.flip, .site-nav a.flip:hover { transform: none; transition: none; }
}

/* À propos */
.about .stats { margin-bottom: 28px; }
.skills {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.skills li {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.74rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--fg-muted);
  transition: border-color 0.2s, color 0.2s, transform 0.25s var(--ease);
}
.skills li:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }