/* Thibaut Fontaine — portfolio
   Hand-written CSS. No framework, no build step. */

:root {
  --bg: #080b10;
  --bg-soft: #0c121a;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.075);
  --text: #e9eef5;
  --muted: #97a6b6;
  --faint: #64748b;
  --accent: #ffb36b;
  --accent-soft: rgba(255, 179, 107, 0.14);
  --mint: #7ce7c4;
  --mint-soft: rgba(124, 231, 196, 0.12);
  --line: rgba(255, 255, 255, 0.10);
  --line-strong: rgba(255, 255, 255, 0.18);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --display: "Fraunces", Georgia, serif;
  --body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  --radius: 22px;
  --max: 1120px;
}

html[data-theme="light"] {
  --bg: #f6f2ea;
  --bg-soft: #fffdf7;
  --surface: rgba(16, 24, 32, 0.045);
  --surface-strong: rgba(16, 24, 32, 0.075);
  --text: #101820;
  --muted: #53616f;
  --faint: #7b8794;
  --accent: #b34a12;
  --accent-soft: rgba(179, 74, 18, 0.10);
  --mint: #0f766e;
  --mint-soft: rgba(15, 118, 110, 0.10);
  --line: rgba(16, 24, 32, 0.12);
  --line-strong: rgba(16, 24, 32, 0.22);
  --shadow: 0 30px 70px rgba(60, 45, 30, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 800px at 80% -10%, var(--bg-soft), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #140d07; }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  width: min(var(--max), 92vw);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #140d07;
  font-weight: 600;
}
.skip-link:focus { left: 12px; }

/* ---------- backdrop ---------- */

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.34;
  transform: translateZ(0);
}
.blob-amber {
  width: 58vw;
  height: 58vw;
  top: -24vw;
  right: -12vw;
  background: radial-gradient(circle at 40% 40%, var(--accent), transparent 62%);
  animation: drift-a 22s ease-in-out infinite alternate;
}
.blob-mint {
  width: 46vw;
  height: 46vw;
  left: -18vw;
  top: 48vh;
  background: radial-gradient(circle at 50% 50%, var(--mint), transparent 64%);
  animation: drift-b 26s ease-in-out infinite alternate;
}
.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 20%, #000 0%, transparent 72%);
  opacity: 0.35;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

@keyframes drift-a {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(-4vw, 5vh, 0) scale(1.08); }
}
@keyframes drift-b {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(5vw, -6vh, 0) scale(1.12); }
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  background: color-mix(in srgb, var(--bg) 68%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}
.brand {
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.brand i { color: var(--accent); font-style: normal; }
.nav-links {
  display: flex;
  gap: 26px;
  font-size: 0.86rem;
  color: var(--muted);
}
.nav-links a {
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-actions { display: flex; align-items: center; gap: 6px; }
[hidden] { display: none !important; }
.lang-btn {
  height: 38px;
  padding: 0 13px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.lang-btn:hover { border-color: var(--accent); background: var(--accent-soft); }
.lang-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  color: var(--muted);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.icon-btn:hover { color: var(--text); border-color: var(--line-strong); background: var(--surface); }
#menu-toggle { display: none; }
html[data-theme="dark"] .icon-sun { display: none; }
html[data-theme="light"] .icon-moon { display: none; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--accent);
  color: #1a0f06;
  box-shadow: 0 12px 30px color-mix(in srgb, var(--accent) 28%, transparent);
}
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 86%, white); }
.btn-ghost {
  border-color: var(--line-strong);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover { background: var(--surface); border-color: var(--accent); }
.btn:focus-visible, .icon-btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.35fr 0.75fr;
  gap: clamp(36px, 6vw, 90px);
  align-items: end;
  padding: clamp(70px, 11vh, 130px) 0 48px;
}
.eyebrow {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(4rem, 11vw, 8.2rem);
  line-height: 0.88;
  letter-spacing: -0.045em;
}
.hero h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}
.lede {
  max-width: 36em;
  margin: 30px 0 0;
  font-size: clamp(1.02rem, 1.4vw, 1.16rem);
  color: var(--muted);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
  color: var(--faint);
}
.hero-meta li { display: inline-flex; align-items: center; gap: 8px; }
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px var(--mint-soft);
}

.status-card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, var(--surface-strong), transparent 55%),
    color-mix(in srgb, var(--bg-soft) 70%, transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.status-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, var(--accent), transparent 35%, transparent 65%, var(--mint));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.35;
  pointer-events: none;
}
.status-head {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 var(--mint);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--mint) 55%, transparent); }
  70% { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.status-role {
  margin: 18px 0 0;
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.status-company { margin: 2px 0 0; color: var(--muted); font-size: 0.9rem; }
.status-rule { height: 1px; margin: 22px 0; background: var(--line); }
.status-list { display: grid; gap: 12px; margin: 0; }
.status-list div { display: flex; justify-content: space-between; gap: 14px; }
.status-list dt {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}
.status-list dd { margin: 0; font-size: 0.84rem; color: var(--text); text-align: right; }
.status-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  font-size: 0.84rem;
  color: var(--accent);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  padding-bottom: 2px;
}

/* ---------- stats ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 10px auto 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--line);
}
.stats div {
  padding: 22px 24px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
}
.stats strong {
  display: block;
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1;
}
.stats span { display: block; margin-top: 7px; font-size: 0.78rem; color: var(--muted); }

/* ---------- sections ---------- */

.section { padding: clamp(80px, 11vw, 140px) 0 0; }
.section-head { max-width: 760px; margin-bottom: 42px; }
.section-head h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(2rem, 4.4vw, 3.3rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}
.section-head h2 em { color: var(--accent); font-style: italic; }

/* ---------- about ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1.45fr 0.7fr;
  gap: clamp(30px, 6vw, 80px);
  align-items: start;
}
.about-copy p { margin: 0 0 18px; color: var(--muted); font-size: 1.02rem; }
.about-copy p:first-child { color: var(--text); font-size: 1.12rem; }
.about-aside {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
}
.aside-label {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.about-aside ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.about-aside li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  color: var(--muted);
}
.about-aside li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
}

/* ---------- timeline ---------- */

.timeline {
  position: relative;
  margin-left: 6px;
  padding-left: 30px;
  border-left: 1px solid var(--line);
}
.role { position: relative; padding-bottom: 48px; }
.role:last-child { padding-bottom: 0; }
.role::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft);
}
.role-top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
}
.role h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.3rem, 2.2vw, 1.65rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}
.company { margin: 3px 0 0; font-size: 0.9rem; color: var(--accent); }
.dates {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--faint);
  white-space: nowrap;
}
.role ul { margin: 16px 0 0; padding: 0; list-style: none; display: grid; gap: 7px; }
.role li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.94rem;
}
.role li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 5px;
  height: 1px;
  background: var(--line-strong);
}

/* ---------- skills ---------- */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px 34px;
}
.skill-group {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.skill-group h3 {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.chips li {
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text);
  background: var(--surface);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.chips li:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}
.chips.small li { font-size: 0.72rem; padding: 4px 9px; }

/* ---------- work ---------- */

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.work-card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    linear-gradient(170deg, var(--surface-strong), transparent 60%),
    color-mix(in srgb, var(--bg-soft) 55%, transparent);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.work-card:hover {
  transform: translateY(-5px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}
.work-tag {
  margin: 0 0 22px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.work-card h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.work-card p { margin: 0 0 18px; color: var(--muted); font-size: 0.9rem; }

/* ---------- education ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 6vw, 80px);
}
.edu-item { padding: 18px 0; border-bottom: 1px solid var(--line); }
.edu-item:last-child { border-bottom: 0; }
.edu-item h3 {
  margin: 0 0 4px;
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.015em;
}
.edu-item p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.edu-item span {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--faint);
}
.language-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.language-list li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.language-list span { font-size: 0.95rem; }
.language-list em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- contact ---------- */

.contact { padding-bottom: 120px; }
.contact h2 {
  max-width: 850px;
  margin: 0;
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(2.2rem, 5.4vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}
.contact-lede { max-width: 620px; margin: 24px 0 0; color: var(--muted); font-size: 1.02rem; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.socials { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 38px; }
.socials a {
  display: inline-flex;
  gap: 6px;
  font-size: 0.88rem;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.socials a:hover { color: var(--accent); border-color: var(--accent); }
.availability {
  margin: 42px 0 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.site-footer p { margin: 0; font-size: 0.76rem; color: var(--faint); }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 20px);
  z-index: 100;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  font-size: 0.82rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- reveal ---------- */

html.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1);
}
html.js .reveal.visible { opacity: 1; transform: none; }

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; align-items: start; }
  .status-card { max-width: 520px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .work-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 10px 4vw 18px;
    background: color-mix(in srgb, var(--bg) 94%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
  }
  .nav.open .nav-links { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
  #menu-toggle { display: inline-flex; }
  .section { padding-top: 86px; }
  .role-top { flex-direction: column; gap: 4px; }
  .dates { order: -1; }
  .skills-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
  .hero h1 { font-size: clamp(3.4rem, 18vw, 5rem); }
}

/* ---------- motion / print ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html.js .reveal { opacity: 1; transform: none; }
}

@media print {
  html.js .reveal { opacity: 1 !important; transform: none !important; }
  .site-header, .backdrop, .hero-actions, .socials, .toast, .site-footer { display: none !important; }
  body { background: #fff; color: #111; }
  .container { width: 100%; }
  .hero { padding: 0 0 20px; display: block; }
  .hero h1 { font-size: 3rem; }
  .status-card, .stats, .work-card, .about-aside { border-color: #ddd; box-shadow: none; }
  .section { padding-top: 32px; }
  a { color: inherit; }
}