/**
 * Mathis Blanchard – site personnel
 * style.css
 *
 * Table of contents
 * ------------------
 *  0. Custom Properties (design tokens)
 *  1. Reset & base
 *  2. Skip-link
 *  3. Layout helpers
 *  4. Header & navigation
 *  5. Hero
 *  6. Prismes (section + cards + filter)
 *  7. Dossier
 *  8. Bibliothèque
 *  9. Atelier
 * 10. Parcours (timeline)
 * 11. Footer
 * 12. Article page
 * 13. Mobile bottom bar
 * 14. Prisme SVG animations
 * 15. Reduced motion
 * 16. Dark mode (non-variable overrides)
 * 17. Responsive (≤ 760 px)
 */


/* ═══════════════════════════════════════════════════════════
   0. Custom Properties
   ═══════════════════════════════════════════════════════════ */

:root {
  /* — Colours — */
  --color-bg:            #FFFFFF;
  --color-bg-alt:        #F8F9FA;
  --color-ink:           #0B132B;
  --color-text:          #2D3748;
  --color-muted:         #64748B;
  --color-border:        #E2E8F0;
  --color-border-light:  #EDF2F7;
  --color-accent:        #002FA7;
  --color-accent-hover:  #001F70;
  --color-green:         #1E7E34;
  --color-orange:        #D9692A;
  --color-orange-subtle: #B4541E;
  --color-card-bg:       #FFFFFF;
  --color-chip-border:   #CBD5E1;
  --color-photo-frame:   #F1F5F9;
  --color-shadow:        #002FA7;

  /* Palette that stays the same in dark mode */
  --color-eth-green:     #078930;
  --color-eth-yellow:    #FCDD09;
  --color-eth-red:       #DA121A;

  /* — Fonts — */
  --font-display: 'Young Serif', Georgia, 'Times New Roman', serif;
  --font-body:    'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-title:   'Inter Tight', 'Inter', system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;
  --font-logo:    'Pinyon Script', 'Snell Roundhand', cursive;

  /* — Spacing — */
  --wrap-max:     1200px;
  --wrap-pad:     40px;
  --section-pad:  88px;

  /* — Misc — */
  --radius:       0px;
  --transition:   0.25s ease;
}

/* Dark mode – auto-detect */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg:            #0F1623;
    --color-bg-alt:        #151D2E;
    --color-ink:           #E8E4DA;
    --color-text:          #B8BCC8;
    --color-muted:         #8890A0;
    --color-border:        #2A3448;
    --color-border-light:  #223040;
    --color-accent:        #4D7AFF;
    --color-accent-hover:  #7A9EFF;
    --color-green:         #5CB88A;
    --color-orange:        #E8884A;
    --color-orange-subtle: #D4813E;
    --color-card-bg:       #151D2E;
    --color-chip-border:   #3A4458;
    --color-photo-frame:   #1A2436;
    --color-shadow:        #4D7AFF;
  }
}

/* Dark mode – manual toggle */
[data-theme="dark"] {
  --color-bg:            #0F1623;
  --color-bg-alt:        #151D2E;
  --color-ink:           #E8E4DA;
  --color-text:          #B8BCC8;
  --color-muted:         #8890A0;
  --color-border:        #2A3448;
  --color-border-light:  #223040;
  --color-accent:        #4D7AFF;
  --color-accent-hover:  #7A9EFF;
  --color-green:         #5CB88A;
  --color-orange:        #E8884A;
  --color-orange-subtle: #D4813E;
  --color-card-bg:       #151D2E;
  --color-chip-border:   #3A4458;
  --color-photo-frame:   #1A2436;
  --color-shadow:        #4D7AFF;
}


/* ═══════════════════════════════════════════════════════════
   1. Reset & base
   ═══════════════════════════════════════════════════════════ */

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  transition: background var(--transition), color var(--transition);
}

html { scroll-behavior: smooth; }

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

img { max-width: 100%; height: auto; }

/* OpenType quality */
body {
  font-feature-settings: "liga" 1, "kern" 1, "calt" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}


/* ═══════════════════════════════════════════════════════════
   2. Skip-link
   ═══════════════════════════════════════════════════════════ */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 12px 20px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
}


/* ═══════════════════════════════════════════════════════════
   3. Layout helpers
   ═══════════════════════════════════════════════════════════ */

.wrap {
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding-left: var(--wrap-pad);
  padding-right: var(--wrap-pad);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.section {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

.span-2  { grid-column: span 2; }
.span-3  { grid-column: span 3; }
.span-4  { grid-column: span 4; }
.span-5  { grid-column: span 5; }
.span-7  { grid-column: span 7; }
.span-8  { grid-column: span 8; }
.span-9  { grid-column: span 9; }
.col-3-8 { grid-column: 3 / span 8; }
.col-3-7 { grid-column: 3 / span 7; }

.section-alt {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}


/* ═══════════════════════════════════════════════════════════
   4. Header & navigation
   ═══════════════════════════════════════════════════════════ */

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.header__inner {
  padding-top: 14px;
  padding-bottom: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-ink);
}

.header__monogram {
  font-family: var(--font-logo);
  font-size: 52px;
  line-height: 0.8;
  padding-top: 8px;
  color: var(--color-ink);
}

.header__name {
  font-family: var(--font-title);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.header__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  font-size: 15px;
}

.header__nav-link {
  padding: 10px 12px;
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 400;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.header__nav-link--active,
.header__nav-link[aria-current="true"] {
  color: var(--color-accent);
  font-weight: 600;
  border-bottom-color: var(--color-accent);
}

.header__divider {
  width: 1px;
  height: 20px;
  background: var(--color-border-light);
  margin: 0 6px;
}

.header__lang {
  padding: 10px 12px;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}
.header__lang strong { color: var(--color-ink); }

.header__theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1.5px solid var(--color-border);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}
.header__theme-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.header__theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Back-link on article page */
.header__back {
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* Article progress bar */
.header__progress-track {
  height: 3px;
  background: var(--color-border);
}
.header__progress-bar {
  height: 3px;
  background: linear-gradient(90deg, #FF4D4F, #FF8A3D, #FFD84D, #4ED38A, #3FA2FF, #5B4BE0, #A24BE8, #FF4D4F);
  background-size: 200% 100%;
  animation: rainbow-flow 4s linear infinite;
  transform-origin: left center;
  transform: scaleX(0.18);
}
@supports (animation-timeline: scroll()) {
  .header__progress-bar {
    transform: scaleX(0);
    animation: rainbow-flow 4s linear infinite, progress-grow linear both;
    animation-timeline: auto, scroll(root);
    animation-duration: 4s, auto;
  }
}
@keyframes rainbow-flow {
  from { background-position: 0% 0%; }
  to   { background-position: 200% 0%; }
}
@keyframes progress-grow { to { transform: scaleX(1); } }



/* ═══════════════════════════════════════════════════════════
   5. Hero
   ═══════════════════════════════════════════════════════════ */

.hero {
  padding: 80px 0 104px;
  align-items: start;
}

.hero__text {
  display: flex;
  flex-direction: column;
  gap: 30px;
  min-width: 0;
}

.hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400; /* Young Serif n'a que le Regular, sans gras ni italique */
  font-size: 96px;
  line-height: 1.0;
  letter-spacing: -0.025em; /* serifs need less negative tracking than sans */
  text-wrap: balance;
}
.hero__title .accent {
  color: var(--color-accent);
  font-style: normal; /* pas d'italique dessiné : on évite l'italique synthétique */
}

.hero__intro {
  margin: 0;
  max-width: 640px;
  font-size: 20px;
  line-height: 1.5;
  color: var(--color-text);
}

.hero__tagline {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.hero__now {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: baseline;
  padding-top: 14px;
  border-top: 1px solid var(--color-border-light);
  font-size: 15px;
  color: var(--color-text);
}

.hero__now-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero__now-sep { color: var(--color-border-light); }

.hero__photo {
  margin: 0;
  justify-self: end;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 220px;
}

.hero__photo-frame {
  background: var(--color-photo-frame);
  padding: 10px;
  border: 1px solid var(--color-border-light);
  box-shadow: 8px 8px 0 var(--color-shadow);
}

.hero__photo-frame img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 28%;
  display: block;
  mix-blend-mode: multiply;
  filter: sepia(0.18) saturate(0.92) contrast(1.02);
}

.hero__photo-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  padding-top: 6px;
}


/* ═══════════════════════════════════════════════════════════
   6. Prismes
   ═══════════════════════════════════════════════════════════ */

.pr-section {
  scroll-margin-top: 80px;
}

.pr-header {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-label--green { color: var(--color-green); }

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 58px;
  line-height: 1.05;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.section-title .accent { color: var(--color-accent); font-style: normal; }
.section-title .accent--green { color: var(--color-green); font-style: normal; }

/* Sub-titles stay Inter Tight — contrast with the serif titles */
.section-title--md {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 48px;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

/* Word-reveal on scroll (JS wraps each word in .word) */
.section-title .word {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
}
.section-title .word-inner {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.4em);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.section-title .word-inner.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.section-desc {
  margin: 0;
  font-size: 18px;
  color: var(--color-text);
}

.section-note {
  margin: 0;
  font-size: 14px;
  color: var(--color-muted);
  font-family: var(--font-mono);
}

/* Prisme SVG */
.pr-svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Prisme filter chips */
.pr-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.pr-filter-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  padding-right: 6px;
}

.pr-chip {
  min-height: 40px;
  padding: 0 14px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  border: 1.5px solid var(--color-chip-border);
  background: transparent;
  color: var(--color-ink);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.pr-chip[aria-pressed="true"] {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-bg);
}

.pr-chip:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Prisme cards */
.pr-card {
  --mx: 50%; --my: 50%;
  text-decoration: none;
  color: var(--color-ink);
  background: radial-gradient(
    600px circle at var(--mx) var(--my),
    rgba(0, 47, 167, 0.045),
    transparent 40%
  ), var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  transition: border-color var(--transition);
}

.pr-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.pr-card__status--active { color: var(--color-accent); }
.pr-card__status--pending { color: #8A8272; }

.pr-card__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.pr-card__desc {
  margin: 0;
  color: var(--color-text);
  font-size: 15px;
}

.pr-card__lights {
  margin-top: auto;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 3px;
}

.pr-card__light {
  height: 5px;
  background: var(--color-border);
}

.pr-card__light--done {
  background: var(--color-accent);
}

.pr-card__mini-svg {
  width: 100%;
  height: auto;
  display: block;
}

.pr-empty {
  margin: 0;
  padding: 24px;
  border: 1px dashed var(--color-chip-border);
  color: var(--color-muted);
}

.pr-caption {
  margin: 0;
  font-size: 13px;
  color: var(--color-muted);
  font-family: var(--font-mono);
}


/* ═══════════════════════════════════════════════════════════
   7. Dossier
   ═══════════════════════════════════════════════════════════ */

.dossier {
  scroll-margin-top: 80px;
  padding: 96px 0;
}

.dossier__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1.5px solid var(--color-ink);
  min-width: 0;
}

.dossier__item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border-light);
}

.dossier__num {
  font-family: var(--font-title);
  font-size: 28px;
  color: var(--color-green);
  line-height: 1;
}


/* ═══════════════════════════════════════════════════════════
   8. Bibliothèque
   ═══════════════════════════════════════════════════════════ */

.biblio {
  scroll-margin-top: 80px;
}

.biblio__list {
  display: flex;
  flex-direction: column;
  border-top: 1.5px solid var(--color-ink);
  min-width: 0;
}

.biblio__item {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: baseline;
}

.biblio__title {
  font-family: var(--font-title);
  font-size: 26px;
}
.biblio__author {
  font-size: 18px;
  color: var(--color-muted);
}
.biblio__prisme {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}


/* ═══════════════════════════════════════════════════════════
   9. Atelier
   ═══════════════════════════════════════════════════════════ */

.atelier {
  scroll-margin-top: 80px;
  padding: 96px 0 72px;
}

.atelier__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.atelier__tools {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.atelier__card {
  background: var(--color-ink);
  color: var(--color-bg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition), border-color var(--transition);
}
.atelier__card:hover {
  border-color: rgba(255, 255, 255, 0.22);
}

.atelier__card--1 {
  background: #0B1A3A;
}
.atelier__card--2 {
  background: #0D1F4A;
}
.atelier__card--3 {
  background: #0F1535;
}

.atelier__card-svg {
  width: 100%;
  height: 80px;
  display: block;
  margin-top: 2px;
  overflow: visible;
}

.atelier__card-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #9DB0EC;
}
[data-theme="dark"] .atelier__card-label,
:root:not([data-theme="light"]) .atelier__card-label {
  color: #9DB0EC;
}

.atelier__card-title {
  font-family: var(--font-title);
  font-size: 24px;
  line-height: 1.2;
}

.atelier__card-desc {
  font-size: 14px;
  color: #C9D2E8;
}


/* ═══════════════════════════════════════════════════════════
   10. Parcours (timeline)
   ═══════════════════════════════════════════════════════════ */

.parcours {
  scroll-margin-top: 80px;
  border-top: 1px solid var(--color-border);
}

.parcours__photos {
  padding-top: 72px;
}

.parcours__figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.parcours__duo {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 12px;
}

.parcours__duo img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  display: block;
}

.parcours__caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.parcours__content {
  padding: 88px 0 96px;
  align-items: start;
}

.parcours__about {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.parcours__desc {
  margin: 0;
  color: var(--color-text);
}

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

.parcours__school img {
  height: 64px;
  width: auto;
  display: block;
}

.parcours__school-text {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.4;
}

.parcours__school-since {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.parcours__highlights {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--color-border-light);
}

.parcours__highlight {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.parcours__highlight-num {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 22px;
  color: var(--color-orange);
  line-height: 1;
}

.parcours__highlight-arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  padding-top: 2px;
}

.parcours__highlight-text {
  font-size: 15px;
  color: var(--color-text);
}
.parcours__highlight-text strong {
  color: var(--color-ink);
  font-weight: 600;
}

.parcours__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
}

.parcours__availability {
  font-size: 14px;
  color: var(--color-text);
}

/* Timeline */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1.5px solid var(--color-ink);
  min-width: 0;
}

.timeline__item {
  position: relative;
  padding: 0 0 26px 28px;
}

.timeline__dot {
  position: absolute;
  left: -6px;
  top: 7px;
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--color-ink);
}
.timeline__dot--accent { background: var(--color-accent); }
.timeline__dot--ink    { background: var(--color-ink); }

.timeline__date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.timeline__title {
  font-family: var(--font-title);
  font-size: 22px;
  line-height: 1.25;
}

.timeline__place {
  font-size: 14px;
  color: var(--color-text);
}


/* ═══════════════════════════════════════════════════════════
   11. Footer
   ═══════════════════════════════════════════════════════════ */

.footer__stripe {
  display: flex;
  height: 3px;
}
.footer__stripe span:nth-child(1) { flex: 1; background: var(--color-eth-green); }
.footer__stripe span:nth-child(2) { flex: 1; background: var(--color-eth-yellow); }
.footer__stripe span:nth-child(3) { flex: 1; background: var(--color-eth-red); }
.footer__stripe span:nth-child(4) { flex: 9; background: var(--color-border-light); }

.footer__inner {
  padding: 36px 0 48px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: var(--color-muted);
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer__monogram {
  font-family: var(--font-logo);
  font-size: 30px;
  color: var(--color-ink);
  line-height: 1;
}

.footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}
.footer__links a {
  text-decoration: none;
}

.footer__ball {
  width: 26px;
  height: 26px;
  margin-left: 8px;
}
.footer__ball-body { fill: var(--color-orange); }
.footer__ball-lines {
  fill: none;
  stroke: #2A1608;
  stroke-width: 5;
  stroke-linecap: round;
}

/* Ball animation */
.mb-ball { animation: mb-spin 14s linear infinite; transform-box: fill-box; transform-origin: center; }
@keyframes mb-spin { to { transform: rotate(360deg); } }


/* ═══════════════════════════════════════════════════════════
   12. Article page
   ═══════════════════════════════════════════════════════════ */

.article-hero {
  padding: 72px 0 48px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.article-meta__prisme { color: var(--color-accent); }

.article-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 64px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.article-lead {
  margin: 0;
  font-size: 22px;
  line-height: 1.45;
  color: var(--color-text);
  text-wrap: pretty;
}

.article-lights {
  display: flex;
  gap: 6px;
  align-items: center;
  padding-top: 6px;
}
.article-lights__label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-muted);
  padding-right: 6px;
}
.article-lights__legend {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-muted);
  padding-left: 6px;
}
.article-lights__bar {
  width: 34px;
  height: 5px;
  background: var(--color-border);
}
.article-lights__bar--done { background: var(--color-accent); }

/* Table of contents sidebar */
.article-toc {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
  padding-top: 6px;
  min-width: 0;
}

.article-toc__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.article-toc__link {
  text-decoration: none;
  color: var(--color-text);
  border-left: 2px solid var(--color-border-light);
  padding-left: 10px;
}
.article-toc__link--active {
  color: var(--color-accent);
  font-weight: 600;
  border-left-color: var(--color-accent);
}

/* Article body */
.article-body {
  display: flex;
  flex-direction: column;
  gap: 22px;
  font-size: 18px;
  line-height: 1.72;
  color: var(--color-text);
  min-width: 0;
}

.article-body p { margin: 0; }

.article-body h2 {
  margin: 28px 0 0;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.025em;
  scroll-margin-top: 96px;
  color: var(--color-ink);
}

.article-body sup {
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 600;
}

.article-lettrine {
  float: left;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 74px;
  line-height: 0.82;
  padding: 6px 10px 0 0;
  color: var(--color-accent);
}

.article-blockquote {
  margin: 16px 0;
  padding: 6px 0 6px 24px;
  border-left: 3px solid var(--color-orange);
  font-family: var(--font-title);
  font-size: 28px;
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.article-figure {
  margin: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-figure figcaption {
  font-size: 14px;
  color: var(--color-muted);
}
.article-figure svg {
  width: 100%;
  height: auto;
  display: block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

/* Article table */
.article-table {
  overflow-x: auto;
  margin: 6px 0;
}
.article-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.45;
}
.article-table thead tr {
  border-bottom: 1.5px solid var(--color-ink);
  text-align: left;
}
.article-table th {
  padding: 10px 12px;
  font-weight: 600;
}
.article-table th:first-child { padding-left: 0; }
.article-table th:last-child  { padding-right: 0; }
.article-table td {
  padding: 10px 12px;
}
.article-table td:first-child { padding-left: 0; }
.article-table td:last-child  { padding-right: 0; }
.article-table tbody tr {
  border-bottom: 1px solid var(--color-border);
}
.article-table tbody tr:last-child { border-bottom: none; }

.article-table .col-bleu   { color: var(--color-accent); }
.article-table .col-orange { color: var(--color-orange-subtle); }

/* Concepts box */
.article-concepts {
  margin-top: 32px;
  padding: 28px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 14px;
  scroll-margin-top: 96px;
}

.article-concepts__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.article-concepts dl {
  margin: 0;
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 10px 20px;
  font-size: 15px;
  line-height: 1.5;
}
.article-concepts dt { font-weight: 600; }
.article-concepts dd { margin: 0; color: var(--color-text); }

/* Article aside / margin notes */
.article-aside {
  display: flex;
  flex-direction: column;
  gap: 22px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-muted);
  min-width: 0;
}

.article-note {
  display: flex;
  gap: 8px;
}
.article-note__num {
  color: var(--color-accent);
  font-weight: 600;
}

.article-aside-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--color-border-light);
}
.article-aside-box__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Prev / Next nav */
.article-nav {
  border-top: 1px solid var(--color-border);
  padding: 48px 0;
}

.article-nav__link {
  text-decoration: none;
  color: var(--color-ink);
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 0;
  border-top: 1.5px solid var(--color-ink);
}
.article-nav__link--next { text-align: right; }

.article-nav__direction {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
}

.article-nav__title {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.02em;
}


/* ═══════════════════════════════════════════════════════════
   13. Mobile bottom bar
   ═══════════════════════════════════════════════════════════ */

.mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 20;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 6px 0 env(safe-area-inset-bottom, 6px);
  transition: background var(--transition);
}

.mobile-bar__tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 4px;
  font-size: 11px;
  font-family: var(--font-body);
  text-decoration: none;
  color: var(--color-muted);
  transition: color var(--transition);
}

.mobile-bar__tab--active,
.mobile-bar__tab[aria-current="true"] {
  color: var(--color-accent);
}

.mobile-bar__icon {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}


/* ═══════════════════════════════════════════════════════════
   14. Prisme SVG animations
   ═══════════════════════════════════════════════════════════ */

.pr-beam {
  stroke-dasharray: 190;
  stroke-dashoffset: 190;
  animation: pr-draw 1.1s ease-out 0.2s forwards;
}
.pr-inner {
  opacity: 0;
  animation: pr-fade 0.5s ease-out 1.2s forwards;
}
.pr-fan {
  transform-box: fill-box;
  transform-origin: left center;
  transform: scaleX(0);
  animation: pr-open 1.4s cubic-bezier(0.2, 0.8, 0.2, 1) 1.4s forwards;
}
.pr-label {
  opacity: 0;
  animation: pr-fade 0.6s ease-out 2.6s forwards;
}
.pr-shine {
  animation: pr-shine 4.5s ease-in-out 3s infinite;
}
.pr-glow {
  animation: pr-breathe 6s ease-in-out 3s infinite;
}
.pr-word {
  opacity: 0;
  animation: pr-cycle 16s ease-in-out infinite;
}
.pr-glint {
  animation: pr-glint 7s ease-in-out 3.5s infinite;
}
.pr-w2 { animation-delay: 4s; }
.pr-w3 { animation-delay: 8s; }
.pr-w4 { animation-delay: 12s; }

@keyframes pr-draw   { to { stroke-dashoffset: 0; } }
@keyframes pr-fade   { to { opacity: 1; } }
@keyframes pr-open   { to { transform: scaleX(1); } }
@keyframes pr-shine  { 0% { transform: translateX(-220px); } 60%, 100% { transform: translateX(420px); } }
@keyframes pr-breathe { 0%, 100% { opacity: 0.95; } 50% { opacity: 0.78; } }
@keyframes pr-cycle  { 0% { opacity: 0; } 4%, 22% { opacity: 1; } 26%, 100% { opacity: 0; } }
@keyframes pr-glint  { 0% { transform: skewX(-18deg) translateX(0); } 35%, 100% { transform: skewX(-18deg) translateX(330px); } }


/* ═══════════════════════════════════════════════════════════
   15. Reduced motion
   ═══════════════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .mb-ball { animation: none; }
  .pr-beam { animation: none; stroke-dashoffset: 0; }
  .pr-inner, .pr-label { animation: none; opacity: 1; }
  .pr-fan  { animation: none; transform: none; }
  .pr-shine, .pr-glint { display: none; }
  .pr-glow { animation: none; }
  .pr-word { animation: none; opacity: 0; }
  .pr-word.pr-w1 { opacity: 1; }
  .header__progress-bar { animation: none; }
  /* Word-reveal: skip animation, show immediately */
  .section-title .word-inner {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ═══════════════════════════════════════════════════════════
   16. Dark mode – non-variable overrides
   ═══════════════════════════════════════════════════════════ */

/* Photo: disable multiply blend in dark mode (makes image invisible) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero__photo-frame img {
    mix-blend-mode: normal;
    filter: sepia(0.08) saturate(0.85) brightness(0.9);
  }
}
[data-theme="dark"] .hero__photo-frame img {
  mix-blend-mode: normal;
  filter: sepia(0.08) saturate(0.85) brightness(0.9);
}

/* Theme toggle icon swap */
.header__theme-toggle .icon-sun  { display: none; }
.header__theme-toggle .icon-moon { display: block; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .header__theme-toggle .icon-sun  { display: block; }
  :root:not([data-theme="light"]) .header__theme-toggle .icon-moon { display: none; }
}
[data-theme="dark"] .header__theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .header__theme-toggle .icon-moon { display: none; }

[data-theme="light"] .header__theme-toggle .icon-sun  { display: none; }
[data-theme="light"] .header__theme-toggle .icon-moon { display: block; }


/* ═══════════════════════════════════════════════════════════
   17. Responsive (≤ 760 px)
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 760px) {

  :root {
    --wrap-pad: 20px;
  }

  body { padding-bottom: 72px; }

  .grid-12, .grid-3 {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 28px !important;
  }
  .grid-12 > *, .grid-3 > * {
    grid-column: auto !important;
  }

  .hero__title   { font-size: 50px !important; }
  .section-title { font-size: 38px !important; }

  .section { padding-top: 56px !important; padding-bottom: 56px !important; }

  .header__nav { display: none !important; }

  .hero__photo {
    justify-self: start !important;
    max-width: 150px !important;
  }

  .parcours__duo {
    grid-template-columns: minmax(0, 1fr) !important;
  }

  .mobile-bar {
    display: flex;
    justify-content: space-around;
  }

  /* Article page */
  .article-title  { font-size: 40px !important; }
  .article-lead   { font-size: 19px !important; }
  .article-body   { font-size: 17px !important; }

  .hide-mobile { display: none !important; }

  .article-aside {
    padding-top: 0 !important;
    border-top: 1px solid var(--color-border-light);
    padding-top: 20px !important;
  }
  .article-aside > div { padding-top: 0 !important; }

  .article-concepts dl {
    grid-template-columns: minmax(0, 1fr) !important;
  }

  .grid-2 {
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 24px !important;
  }
  .grid-2 > * { grid-column: auto !important; }
}