:root {
  --bg: #020617;
  --fg: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
  --accent-soft: #111827;
  --danger: #f97316;
  --max-width: 1040px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
}

body {
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #0b1120 0, #020617 45%, #000000 100%);
  color: var(--fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 16px 80px;
}

/* TOP BAR */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 40px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.brand {
  font-weight: 600;
}

.top-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.75rem;
}

.pill-link {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--accent-soft);
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
}

.pill-link:hover {
  border-color: var(--accent);
  text-decoration: none;
}

/* LANG SWITCH */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  opacity: 0.6;
}

.lang-btn.lang-active {
  opacity: 1;
  text-decoration: underline;
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr);
  gap: 32px;
  margin-bottom: 64px;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 2.4fr) minmax(0, 1.6fr);
    align-items: flex-start;
  }
}

.hero-main {
  max-width: 44rem;
}

.hero-eyebrow {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--muted);
  margin-bottom: 10px;
}

.hero-title {
  font-size: clamp(2.8rem, 5.4vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1.05;
  margin-bottom: 16px;
}

.hero-highlight {
  color: var(--accent);
}

.hero-lede {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 34rem;
  margin-bottom: 24px;
}

.hero-tags {
  margin: 16px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-tag-line {
  font-size: clamp(1.6rem, 3.2vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.hero-tag-line span {
  color: var(--danger);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.btn-main,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-main {
  background: #f9fafb;
  color: #020617;
  border-color: #f9fafb;
}

.btn-main:hover {
  background: #e5e7eb;
  border-color: #e5e7eb;
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  border-color: var(--accent-soft);
  color: var(--fg);
}

.btn-ghost:hover {
  border-color: var(--accent);
  background: rgba(15, 23, 42, 0.9);
  text-decoration: none;
}

.hero-note {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 4px;
}

.hero-note span {
  color: var(--accent);
}

/* HERO SIDE: photo + micro bio */
.hero-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 0.9rem;
}

.avatar-wrapper {
  display: flex;
  align-items: center;
  gap: 16px;
}

.avatar {
  width: 104px;
  height: 104px;
  border-radius: 30px;
  background: radial-gradient(circle at 20% 0, #38bdf8 0, #0f172a 55%, #020617 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.5);
  flex-shrink: 0;
}

.avatar-initials {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.08em;
  color: #e5e7eb;
}

.avatar-caption {
  font-size: 0.82rem;
  color: var(--muted);
  font-family: "IBM Plex Mono", ui-monospace;
}

.side-quote {
  border-left: 2px solid rgba(148, 163, 184, 0.6);
  padding-left: 14px;
  color: #e5e7eb;
}

.side-quote p {
  font-size: 0.96rem;
}

.side-quote small {
  display: block;
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--muted);
  font-family: "IBM Plex Mono", ui-monospace;
}

.side-meta {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.8rem;
  color: var(--muted);
}

/* SECTIONS */
section {
  margin-bottom: 60px;
}

.section-kicker {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 8px;
}

.section-heading {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 12px;
}

.section-heading span {
  color: var(--accent);
}

.section-description {
  max-width: 44rem;
  font-size: 0.98rem;
  color: var(--muted);
  margin-bottom: 26px;
}

/* PRINCIPLES */
.principles {
  display: grid;
  gap: 26px;
  max-width: 50rem;
}

.principle {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 4px;
}

.principle-number {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.85rem;
  color: var(--muted);
}

.principle-title {
  font-size: 1.05rem;
  font-weight: 600;
}

.principle-body {
  grid-column: 2;
  font-size: 0.95rem;
  color: #e5e7eb;
}

/* PROJECTS */
.projects {
  display: grid;
  gap: 28px;
  max-width: 52rem;
}

.project {
  border-top: 1px solid rgba(31, 41, 55, 0.9);
  padding-top: 18px;
}

.project-tag {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}

.project-title {
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.project-description {
  font-size: 0.96rem;
  color: #e5e7eb;
  margin-bottom: 8px;
}

.project-impact {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.project-link {
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.82rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
}

.project-link:hover {
  text-decoration: underline;
}

/* FOOTER */
footer {
  border-top: 1px solid rgba(31, 41, 55, 0.9);
  padding-top: 20px;
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: "IBM Plex Mono", ui-monospace;
  font-size: 0.8rem;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: none;
}
.avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;     
  border-radius: 30px;   
  display: block;
}

/* CODE BLOCKS */
.code-snippet {
  margin: 24px 0;
  padding: 16px 18px;
  border-radius: 16px;
  background: var(--accent-soft);
  border: 1px solid rgba(148, 163, 184, 0.5);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  overflow-x: auto;
}

.code-snippet code {
  white-space: pre;
  display: block;
}

/* IMAGES & FIGURES */
.figure-row{
  max-width: 70%;
}
figure {
  margin: 24px 0;
}

figure img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 16px;
}

/* Deux images côte à côte, responsive */
.figure-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin: 24px 0;
}

@media (min-width: 900px) {
  .figure-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}