/* ==========================================================================
   Gudupont - feuille de style du site
   Identité reprise de la charte Gudupont : papier crème, encre, un seul vert.
   Instrument Serif pour les titres, Space Grotesk pour le texte,
   JetBrains Mono pour les repères et les chiffres.
   ========================================================================== */

/* --- Jetons ------------------------------------------------------------- */

:root {
  color-scheme: light dark;

  /* Surfaces */
  --paper: #f5f3ee;
  --cream: #faf8f4;

  /* Encres, une seule famille de gris */
  --ink: #17181b;
  --ink-body: #2a2c30;
  --ink-2: #57554f;
  --ink-3: #8a867e;

  /* Accent unique */
  --accent: #1b4a45;
  --accent-strong: #123330;

  /* Filets */
  --rule: rgba(23, 24, 27, 0.14);
  --rule-soft: rgba(23, 24, 27, 0.08);

  /* Typographie */
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Space Grotesk", Arial, system-ui, sans-serif;
  --mono: "JetBrains Mono", Consolas, ui-monospace, monospace;

  /* Géométrie : multiples de 4, un seul rayon */
  --radius: 10px;
  --gutter: clamp(1.5rem, 5vw, 5.5rem);
  --section-y: clamp(4.5rem, 10vw, 9rem);
  --max: 76rem;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Empilement */
  --z-nav: 10;
  --z-skip: 50;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17181b;
    --cream: #1d1f22;
    --ink: #f2efe9;
    --ink-body: #ddd9d2;
    --ink-2: #a8a49c;
    --ink-3: #85817a;
    /* Le vert de la charte est illisible sur l'encre : variante prévue. */
    --accent: #8fbdb6;
    --accent-strong: #b0d3ce;
    --rule: rgba(242, 239, 233, 0.16);
    --rule-soft: rgba(242, 239, 233, 0.09);
  }
}

/* --- Base --------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-body);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--accent-strong);
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: var(--z-skip);
  transform: translateY(-200%);
  background: var(--accent);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font: 500 0.875rem var(--sans);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
  color: var(--paper);
}

/* --- Titres et texte ---------------------------------------------------- */

.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3rem, 8vw, 5.75rem);
  line-height: 0.92;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-wrap: balance;
}

.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.125rem, 4.5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-wrap: balance;
}

.prose {
  max-width: 62ch;
  text-wrap: pretty;
}

.prose + .prose {
  margin-top: 1.25rem;
}

.label {
  font: 500 0.75rem var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* --- Navigation --------------------------------------------------------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  height: 4.5rem;
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--paper) 84%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}

/* Le filet n'apparaît qu'une fois la page défilée : au repos, rien ne coupe. */
.site-nav.is-stuck {
  border-bottom-color: var(--rule-soft);
}

.site-nav .wrap {
  width: 100%;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
}

.nav-mark {
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  white-space: nowrap;
  font: 400 0.8125rem var(--sans);
}

.nav-links a {
  color: var(--ink-2);
}

.nav-links a:hover {
  color: var(--ink);
}

/* --- Boutons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.9375rem 1.5rem;
  border-radius: var(--radius);
  font: 500 0.9375rem var(--sans);
  white-space: nowrap;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), transform 0.15s var(--ease);
}

.btn-primary {
  background: var(--accent);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--accent-strong);
  color: var(--paper);
}

.btn-secondary {
  border: 1px solid var(--rule);
  color: var(--ink);
}

.btn-secondary:hover {
  border-color: var(--ink-3);
  color: var(--ink);
}

.btn:active {
  transform: translateY(1px);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* --- Section d'ouverture ------------------------------------------------ */

.intro {
  padding-top: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: var(--section-y);
}

/* L'ouverture tient dans l'écran : nom, phrase et boutons visibles sans défiler. */
.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.intro-name {
  margin-bottom: 1.75rem;
}

.intro-lede {
  font-size: clamp(1.125rem, 1.9vw, 1.375rem);
  line-height: 1.5;
  color: var(--ink-body);
  max-width: 28ch;
  margin-bottom: 2rem;
}

/* Le portrait descend sous la ligne du nom : la composition n'est pas centrée. */
.intro-portrait {
  max-width: 22rem;
  margin-left: auto;
}

.intro-portrait img {
  width: 100%;
  /* les attributs width/height du HTML imposeraient sinon la hauteur d'origine */
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: 50% 22%;
  border-radius: var(--radius);
  filter: grayscale(1) contrast(1.04);
}

.intro-portrait figcaption {
  margin-top: 0.75rem;
  font: 400 0.75rem/1.5 var(--mono);
  color: var(--ink-3);
}

/* --- Repères chiffrés --------------------------------------------------- */

.keyfacts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 3rem);
  padding-top: 2.5rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--rule);
}

.keyfact dt {
  font-family: var(--serif);
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.keyfact dd {
  margin-top: 0.5rem;
  font: 400 0.8125rem/1.45 var(--mono);
  color: var(--ink-3);
}

/* --- Section générique -------------------------------------------------- */

.section {
  padding-block: var(--section-y);
  border-top: 1px solid var(--rule-soft);
}

.section-head {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-head .prose {
  margin-top: 1.25rem;
  color: var(--ink-2);
}

/* --- En bref : texte à gauche, faits à droite --------------------------- */

.about {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.about-text {
  margin-top: 1.5rem;
}

.about-facts {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-top: 0.5rem;
}

.about-facts div {
  padding-top: 1rem;
  border-top: 1px solid var(--rule-soft);
}

.about-facts dt {
  font: 500 0.6875rem var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.about-facts dd {
  margin-top: 0.375rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ink-body);
}

/* --- Domaines : pas de cartes, juste un filet et de l'espace ------------ */

.domains {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 3.5rem) clamp(2rem, 6vw, 5rem);
}

.domain {
  padding-top: 1.25rem;
  border-top: 2px solid var(--ink);
}

.domain:nth-child(even) {
  border-top-color: var(--rule);
}

.domain h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 0.625rem;
}

.domain p {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 42ch;
  text-wrap: pretty;
}

/* --- Parcours : l'année reste collée pendant la lecture du poste -------- */

.job {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding-block: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--rule-soft);
}

.job:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.job-year {
  position: sticky;
  top: 6.5rem;
  align-self: start;
  font: 500 0.8125rem var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink-3);
}

.job:first-of-type .job-year {
  color: var(--accent);
}

.job h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  line-height: 1.1;
  color: var(--ink);
}

.job-org {
  margin-top: 0.375rem;
  font: 400 0.8125rem var(--mono);
  color: var(--ink-3);
}

.job-points {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  max-width: 60ch;
}

.job-points li {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--ink-2);
  text-wrap: pretty;
}

.job-points strong {
  font-weight: 500;
  color: var(--ink);
}

.education {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2.5rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.75rem;
  border-top: 1px solid var(--rule);
  font: 400 0.8125rem var(--mono);
  color: var(--ink-3);
}

.education strong {
  font-weight: 500;
  color: var(--ink-body);
}

/* --- Projets : blocs pleine largeur, titre puis deux colonnes ----------- */

.project {
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--rule-soft);
}

.project:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.project h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.875rem, 3.6vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 18ch;
  text-wrap: balance;
}

.project-body {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: clamp(1.5rem, 5vw, 4.5rem);
  align-items: start;
  margin-top: 1.75rem;
}

.project-body p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 58ch;
  text-wrap: pretty;
}

/* Autant de colonnes que de faits réels : jamais de case vide en bout de ligne. */
.project-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: 1.25rem 1.5rem;
}

.project-facts dt {
  font-family: var(--serif);
  font-size: 1.625rem;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.project-facts dd {
  margin-top: 0.3rem;
  font: 400 0.75rem/1.4 var(--mono);
  color: var(--ink-3);
}

/* --- Compétences : suites typographiques, pas de grille de boîtes ------- */

.skills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.75rem, 3.5vw, 3rem) clamp(2rem, 6vw, 5rem);
}

.skill-group h3 {
  font: 500 0.6875rem var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.75rem;
}

.skill-group ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 0.75rem;
  font-size: 1rem;
  color: var(--ink);
}

.skill-group li + li::before {
  content: "";
  display: inline-block;
  width: 1px;
  height: 0.8em;
  margin-right: 0.75rem;
  background: var(--rule);
  vertical-align: -0.05em;
}

/* --- Contact ------------------------------------------------------------ */

.contact .section-title {
  max-width: 16ch;
}

.contact .prose {
  margin: 1.5rem 0 2.5rem;
  color: var(--ink-2);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  margin-top: 2.5rem;
  font: 400 0.8125rem var(--mono);
  color: var(--ink-3);
}

.contact-links a {
  color: var(--ink-2);
}

.contact-links a:hover {
  color: var(--accent);
}

/* --- Pied de page ------------------------------------------------------- */

.site-footer {
  padding-block: 2rem 3rem;
  border-top: 1px solid var(--rule-soft);
  font: 400 0.75rem var(--mono);
  color: var(--ink-3);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  align-items: baseline;
}

.site-footer a {
  color: var(--ink-3);
}

.site-footer a:hover {
  color: var(--accent);
}

.site-footer .sig {
  margin-left: auto;
}

/* --- Pages secondaires -------------------------------------------------- */

.page {
  max-width: 46rem;
  margin-inline: auto;
  padding: clamp(3rem, 8vw, 5.5rem) var(--gutter) 5rem;
}

.page-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font: 500 0.8125rem var(--mono);
  color: var(--ink-3);
}

.page-back:hover {
  color: var(--accent);
}

.page h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 1.5rem 0 2.5rem;
}

.page h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 1.2;
  color: var(--ink);
  margin: 2.75rem 0 0.875rem;
}

.page p,
.page li {
  max-width: 65ch;
  text-wrap: pretty;
}

.page p + p {
  margin-top: 0.875rem;
}

.legal-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.legal-list li {
  padding-left: 1rem;
  border-left: 1px solid var(--rule);
}

.legal-list strong {
  font-weight: 500;
  color: var(--ink);
}

.legal-list + p {
  margin-top: 1.5rem;
}

.page-updated {
  margin-top: 3rem;
  font: 400 0.75rem var(--mono);
  color: var(--ink-3);
}

.error-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-top: 2.5rem;
  font-size: 1rem;
}

/* --- Apparitions au défilement ------------------------------------------ */

/* Piloté par le script : sans JavaScript, tout reste visible. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* --- Adaptations écran -------------------------------------------------- */

@media (max-width: 60rem) {
  .intro-grid,
  .about,
  .project-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .intro-portrait {
    order: -1;
    max-width: 18rem;
  }

  .intro-portrait img {
    aspect-ratio: 1 / 1;
  }

  .keyfacts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .domains,
  .skills {
    grid-template-columns: minmax(0, 1fr);
  }

  .job {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.75rem;
  }

  .job-year {
    position: static;
  }
}

@media (max-width: 40rem) {
  .nav-links {
    gap: 1.125rem;
    font-size: 0.78rem;
  }

  .nav-links .nav-hide {
    display: none;
  }

  .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .site-footer .sig {
    margin-left: 0;
  }
}

/* --- Accessibilité et impression ---------------------------------------- */

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-nav,
  .skip-link,
  .btn-row {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  .section,
  .job,
  .project {
    break-inside: avoid;
  }
}