/* =========================================================
   Jérémy Raffin — VARIANTE « Monographe · Sauge »
   Structure & typo éditoriale (Newsreader / Source Sans 3)
   Palette sauge : papier clair + ardoise + vert sauge
   ========================================================= */

:root {
  --bg:       #F4F5F1;   /* papier sauge */
  --bg-2:     #FFFFFF;
  --bg-3:     #E7EBE4;
  --fg:       #1E211E;   /* ardoise */
  --fg-soft:  #3A3E3A;
  --muted:    #646B62;
  --line:     rgba(30, 33, 30, 0.14);
  --line-str: rgba(30, 33, 30, 0.26);
  --accent:   #4C6A55;   /* vert sauge */
  --accent-dk:#3B5443;

  --maxw: 1180px;
  --gutter: 2.5rem;

  --f-serif: "Newsreader", Georgia, "Times New Roman", serif;
  --f-sans: "Source Sans 3", "Source Sans Pro", -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: var(--f-sans); font-size: 18px; line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
::selection { background: var(--accent); color: #fff; }

/* =========================================================
   ACCUEIL — SPLIT
   ========================================================= */
.shell { display: grid; grid-template-columns: 40% 60%; max-width: 1400px; margin: 0 auto; }

.side {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 4.5rem 3.5rem 3rem 3.5rem;
}
.idname { font-family: var(--f-serif); font-weight: 500; font-size: clamp(2.1rem, 3.1vw, 3.1rem); letter-spacing: -0.02em; text-decoration: none; color: var(--fg); line-height: 1.02; }
.idname span { color: var(--accent); }
.idrole { font-family: var(--f-sans); font-size: 0.76rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.16em; color: var(--accent); margin: 1.1rem 0 0; }
.idtag { font-family: var(--f-serif); font-style: italic; font-size: 1.25rem; color: var(--fg-soft); line-height: 1.45; margin: 1.3rem 0 0; max-width: 32ch; }

.idnav { margin-top: 3rem; display: flex; flex-direction: column; gap: 0.2rem; }
.idnav-link { display: flex; align-items: center; gap: 0.9rem; text-decoration: none; font-family: var(--f-sans); font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); padding: 0.5rem 0; transition: color .15s; }
.idnav-line { width: 28px; height: 1px; background: var(--line-str); transition: width .2s, background .2s; }
.idnav-link:hover { color: var(--fg); }
.idnav-link:hover .idnav-line { width: 44px; background: var(--fg); }
.idnav-link.is-active { color: var(--accent); }
.idnav-link.is-active .idnav-line { width: 52px; background: var(--accent); }

.id-meta { margin: 1.6rem 0 0; display: flex; align-items: center; gap: 0.65rem 1rem; flex-wrap: wrap; }
.avail { display: flex; align-items: center; font-family: var(--f-sans); font-size: 0.82rem; color: var(--muted); margin: 0; }
.avail .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #4E6454; margin-right: 0.55rem; box-shadow: 0 0 0 3px rgba(78,100,84,0.16); }
.id-linkedin { display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; font-family: var(--f-sans); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.01em; color: var(--fg-soft); border: 1px solid var(--line-str); border-radius: 999px; padding: 0.42rem 0.95rem; transition: color .15s, border-color .15s, background .15s; }
.id-linkedin .li-ico { width: 16px; height: 16px; fill: currentColor; flex: 0 0 auto; }
.id-linkedin:hover { color: #fff; background: var(--accent); border-color: var(--accent); }
.clinks .id-linkedin { font-family: var(--f-sans); font-size: 1rem; color: var(--fg-soft); padding: 0.6rem 1.25rem; }
.clinks .id-linkedin .li-ico { width: 18px; height: 18px; }
.clinks .id-linkedin:hover { color: #fff; font-style: normal; }

.content { padding: 4.5rem 4rem 5rem 2rem; min-width: 0; }
.sec { padding: 2rem 0 4rem; max-width: 640px; }
#intro { padding-top: 3rem; }

.intro-h { font-family: var(--f-serif); font-weight: 500; font-size: clamp(2rem, 3.4vw, 3rem); line-height: 1.1; letter-spacing: -0.015em; margin: 0 0 1.3rem; max-width: 21ch; }
.intro-h em { font-style: italic; color: inherit; }
#intro { padding-top: 3.5rem; }
#intro .lead { max-width: 58ch; }

.sec-title { font-family: var(--f-serif); font-weight: 500; font-size: 1.7rem; letter-spacing: -0.01em; margin: 0 0 2rem; display: flex; align-items: baseline; gap: 0.9rem; }
.sec-idx { font-family: var(--f-sans); font-size: 0.78rem; font-weight: 600; color: var(--accent); }

.pillars { display: grid; gap: 1.6rem; margin-bottom: 2.4rem; }
.pil { border-top: 1px solid var(--line); padding-top: 1rem; }
.pnum { font-family: var(--f-serif); font-size: 1.4rem; color: var(--line-str); }
.pil h3 { font-family: var(--f-serif); font-weight: 460; font-size: 1.25rem; margin: 0.2rem 0 0.4rem; }
.pil p { margin: 0; color: var(--fg-soft); font-size: 0.98rem; }

.case { display: grid; grid-template-columns: 1fr 200px; gap: 1.5rem; align-items: center; text-decoration: none; color: inherit; padding: 1.5rem; margin-bottom: 1rem; background: var(--bg-2); border: 1px solid var(--line); transition: border-color .15s, transform .15s; }
.case:hover { border-color: var(--accent); transform: translateY(-2px); }
.case-k { font-family: var(--f-sans); font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); }
.case-txt h3 { font-family: var(--f-serif); font-weight: 460; font-size: 1.3rem; margin: 0.35rem 0 0.4rem; letter-spacing: -0.01em; }
.case-txt p { margin: 0 0 0.7rem; color: var(--fg-soft); font-size: 0.94rem; }
.case-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.case-tags span { font-family: var(--f-sans); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); border: 1px solid var(--line); padding: 2px 6px; }
.case-img img { width: 100%; border: 1px solid var(--line); }

.more-cases { list-style: none; margin: 1.4rem 0 0; padding: 0; }
.more-cases li { border-top: 1px solid var(--line); }
.more-cases li:last-child { border-bottom: 1px solid var(--line); }
.more-cases a { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem 0.3rem; text-decoration: none; color: var(--fg-soft); transition: color .15s, padding .15s; }
.more-cases a:hover { color: var(--accent); padding-left: 0.7rem; }
.more-cases b { font-family: var(--f-serif); font-weight: 500; font-size: 1.05rem; color: var(--fg); }
.more-cases a:hover b { color: var(--accent); }
.more-cases span { color: var(--accent); }

.track { list-style: none; margin: 1.6rem 0 0; padding: 0; }
.track li { border-left: 1px solid var(--line-str); padding: 0 0 1rem 1rem; position: relative; }
.track li::before { content: ""; position: absolute; left: -4px; top: 7px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.track b { display: block; font-family: var(--f-serif); font-weight: 500; font-size: 1.05rem; }
.track span { font-family: var(--f-sans); font-size: 0.8rem; color: var(--muted); }

.clinks { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 1.5rem; }
.clinks a { font-family: var(--f-serif); font-size: 1.55rem; text-decoration: none; color: var(--fg); width: fit-content; transition: color .15s, font-style .15s; }
.clinks a:hover { color: var(--accent); font-style: italic; }

/* =========================================================
   PAGES DE CAS — même coquille, contenu à droite
   ========================================================= */
.content--case { padding: 4rem 4rem 5rem 2.5rem; }
.content--case .wrap { max-width: none; margin: 0; padding: 0; }
.content--case .case-head { padding: 2.5rem 0 2.2rem; }
.content--case .case-head h1 { max-width: 20ch; }
.content--case .section--tight { padding: 2.5rem 0 0; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 5rem 0; }
.section--tight { padding: 3.5rem 0; }
.border-top { border-top: 1px solid var(--line); }
.grid { display: grid; gap: 2.2rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

h1, h2, h3, h4 { font-family: var(--f-serif); font-weight: 400; line-height: 1.1; margin: 0 0 0.55em; letter-spacing: -0.02em; color: var(--fg); }
h1 { font-size: clamp(2.2rem, 4.4vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h3 { font-size: 1.25rem; font-weight: 460; }
h1 em, h2 em, h3 em, .italic { font-style: italic; color: inherit; }
p { margin: 0 0 1.1rem; max-width: 66ch; }
strong, b { font-weight: 600; }
.muted { color: var(--fg-soft); }
.small { font-size: 0.9rem; }

.eyebrow { font-family: var(--f-sans); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin: 0 0 1.3rem; }
.lead { font-size: clamp(1.1rem, 1.4vw, 1.3rem); color: var(--fg-soft); line-height: 1.55; max-width: 60ch; }
.section-head { max-width: 58ch; margin-bottom: 2.8rem; }

.btn { display: inline-flex; align-items: center; gap: 0.5rem; cursor: pointer; font-family: var(--f-sans); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.85rem 1.7rem; border: 1px solid var(--ink, var(--fg)); border-radius: 0; text-decoration: none; background: transparent; color: var(--fg); transition: background .15s, color .15s, border-color .15s; }
.btn--primary { background: var(--fg); color: var(--bg); }
.btn--primary:hover { background: var(--accent); border-color: var(--accent); }
.btn--ghost { border-color: var(--line-str); color: var(--fg); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero { padding: 5.5rem 0 4rem; }
.hero h1 { max-width: 18ch; }
.hero .lead { margin-top: 1.3rem; }
.hero .btn-row { margin-top: 2.2rem; }

.pillar, .axis { border-top: 1px solid var(--line); padding-top: 1.2rem; }
.pillar .num, .axis .num { font-family: var(--f-serif); font-size: 1.4rem; color: var(--line-str); display: block; margin-bottom: 0.5rem; }
.axis .num { font-family: var(--f-sans); font-size: 0.85rem; font-weight: 600; color: var(--accent); letter-spacing: 0.12em; }
.pillar h3, .axis h3 { margin-bottom: 0.5rem; }

.case-row { display: grid; grid-template-columns: 3.5rem 1fr auto; align-items: baseline; gap: 1.8rem; padding: 2rem 0.75rem; border-top: 1px solid var(--line); text-decoration: none; color: inherit; }
.case-row:last-of-type { border-bottom: 1px solid var(--line); }
.case-row .idx { font-family: var(--f-serif); font-size: 1.5rem; color: var(--accent); }
.case-row h3 { margin: 0 0 0.3rem; transition: color .18s ease; }
.case-row:hover h3 { color: var(--accent); }
.case-row p { margin: 0; color: var(--fg-soft); font-size: 0.96rem; max-width: 70ch; }
.case-row .arrow { font-size: 1.3rem; color: var(--muted); align-self: center; transition: transform .2s ease, color .18s ease; }
.case-row:hover .arrow { color: var(--accent); transform: translateX(7px); }

.case-head { padding: 4.5rem 0 2.5rem; }
.case-head h1 { max-width: 21ch; }
.case-meta { display: flex; flex-wrap: wrap; gap: 0.4rem 2.5rem; margin-top: 1.7rem; padding-top: 1.2rem; border-top: 1px solid var(--line); font-size: 0.86rem; color: var(--fg-soft); }
.case-meta b { display: block; font-family: var(--f-sans); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); font-weight: 600; margin-bottom: 2px; }
.tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 1.3rem; }
.tag { font-family: var(--f-sans); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; padding: 0.3rem 0.7rem; border: 1px solid var(--line); border-radius: 0; color: var(--fg-soft); background: transparent; }

.case-body { display: grid; grid-template-columns: 1fr; }
.block { padding: 2.6rem 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 220px 1fr; gap: 2.4rem; }
.block > h2 { font-family: var(--f-sans); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.16em; color: var(--accent); text-transform: uppercase; margin: 0.35rem 0 0; }
.block ul { margin: 0; padding-left: 0; list-style: none; }
.block li { margin-bottom: 0.7rem; padding-left: 1.3rem; position: relative; color: var(--fg-soft); }
.block li::before { content: "—"; position: absolute; left: 0; color: var(--accent); }
.block p { color: var(--fg-soft); }
.block p:last-child { margin-bottom: 0; }
.block--lesson p { font-family: var(--f-serif); font-size: 1.4rem; font-style: italic; line-height: 1.4; color: var(--fg); max-width: 30ch; }

.case-nav { display: flex; justify-content: space-between; gap: 1rem; padding: 2.8rem 0; border-top: 1px solid var(--line); flex-wrap: wrap; }
.case-nav a { text-decoration: none; font-family: var(--f-serif); font-style: italic; font-size: 1.05rem; color: var(--fg-soft); }
.case-nav a:hover { color: var(--accent); }

.case-figure { margin: 0 0 0.5rem; padding: 2.4rem 0 0.5rem; }
.case-figure picture { display: block; }
.case-figure img { width: 100%; height: auto; display: block; border: 1px solid var(--line); background: #16161a; }
.case-figure video { width: 100%; height: auto; display: block; border: 1px solid var(--line); background: #16161a; }
.video-wrap { position: relative; display: block; }
.vid-toggle { position: absolute; left: 10px; bottom: 10px; width: 34px; height: 34px; padding: 0; border: none; border-radius: 50%; background: rgba(20,22,20,0.55); color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity .15s, background .15s; }
.vid-toggle svg { width: 16px; height: 16px; fill: currentColor; }
.video-wrap:hover .vid-toggle, .vid-toggle:focus-visible { opacity: 1; }
.video-wrap.is-paused .vid-toggle { opacity: 1; }
.vid-toggle:hover { background: rgba(20,22,20,0.85); }
.vid-toggle .vp-play { display: none; }
.video-wrap.is-paused .vp-play { display: inline; }
.video-wrap.is-paused .vp-pause { display: none; }
.case-figure figcaption { margin-top: 0.7rem; font-family: var(--f-sans); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.case-figure figcaption b { color: var(--accent); font-weight: 600; }
.case-figure--diagram img { background: var(--bg); }

.stack { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 1.6rem; }
.stack span { font-family: var(--f-serif); font-style: italic; font-size: 1.02rem; color: var(--fg-soft); }
.stack span:not(:last-child)::after { content: " /"; color: var(--line-str); font-style: normal; margin-left: 6px; }

.checks { list-style: none; margin: 1.6rem 0 0; padding: 0; }
.checks li { padding-left: 1.7rem; position: relative; margin-bottom: 0.85rem; max-width: 66ch; color: var(--fg-soft); }
.checks li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }

.contact-links { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 1.7rem; }
.contact-links a { font-family: var(--f-serif); font-size: 1.6rem; text-decoration: none; color: var(--fg); width: fit-content; transition: color .15s, font-style .15s; }
.contact-links a:hover { color: var(--accent); font-style: italic; }
form.contact { margin-top: 2.5rem; max-width: 560px; display: grid; gap: 1.3rem; }
form.contact label { font-family: var(--f-sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 0.4rem; }
form.contact input, form.contact textarea { width: 100%; font-family: var(--f-sans); font-size: 1rem; padding: 0.6rem 0; border: none; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; color: var(--fg); }
form.contact input:focus, form.contact textarea:focus { outline: none; border-bottom-color: var(--accent); }
form.contact code { font-size: 0.85em; background: var(--bg-3); padding: 0.1em 0.35em; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1000px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; height: auto; padding: 3rem 2rem 1rem; }
  .idtag { max-width: none; }
  .idnav { flex-direction: row; flex-wrap: wrap; gap: 0.2rem 1.4rem; margin-top: 2rem; }
  .idnav-line { display: none; }
  .content { padding: 1rem 2rem 4rem; }
  .content--case { padding: 1rem 2rem 4rem; }
  .sec { max-width: none; }
  .id-meta { margin-top: 1.3rem; }
  body:not(.case-page) .idnav {
    margin: 1.7rem -2rem 0; padding: 1rem 2rem;
    background: var(--bg-3);
    border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
    gap: 0.35rem 1.5rem;
  }

  body.case-page .side { position: sticky; top: 0; z-index: 30; height: auto; background: var(--bg); border-bottom: 1px solid var(--line); padding: 1rem 2rem; }
  body.case-page .side-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
  body.case-page .idphoto,
  body.case-page .idrole,
  body.case-page .idtag,
  body.case-page .id-meta { display: none; }
  body.case-page .idname { font-size: 1.45rem; flex: 0 0 auto; }
  body.case-page .idnav { margin: 0; flex-wrap: nowrap; gap: 0.9rem; }
  body.case-page .idnav-link { display: none; padding: 0.35rem 0; font-size: 0.7rem; }
  body.case-page .idnav-link[href="index.html"],
  body.case-page .idnav-link[href="index.html#cas"] { display: flex; }
  body.case-page .content--case { padding-top: 0; }
  body.case-page .content--case .case-head { padding-top: 1.5rem; }
}
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .block { grid-template-columns: 1fr; gap: 0.8rem; }
  .block--lesson p { max-width: none; }
}
@media (max-width: 620px) {
  body { font-size: 17px; }
  .case { grid-template-columns: 1fr; }
  .case-img { order: -1; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .case-row { grid-template-columns: 2.4rem 1fr; }
  .case-row .arrow { display: none; }
  body.case-page .side { padding-inline: 1.25rem; }
  body.case-page .content--case { padding-inline: 1.25rem; }
  body.case-page .idname { font-size: 1.3rem; }
  body.case-page .idnav { gap: 0.7rem; }
  body.case-page .idnav-link { font-size: 0.64rem; letter-spacing: 0.09em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}

/* =========================================================
   Ajouts : familles de cas, témoignage, sources, placeholder
   ========================================================= */
.cas-family { font-family: var(--f-sans); font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em; color: var(--muted); margin: 2.6rem 0 0.2rem; }
.cas-family:first-of-type { margin-top: 0.4rem; }

.testimonial { border-left: 2px solid var(--accent); padding: 0.1rem 0 0.1rem 1.4rem; margin: 0; }
.testimonial p { font-family: var(--f-serif); font-style: italic; font-size: 1.2rem; line-height: 1.45; color: var(--fg); margin: 0 0 0.6rem; max-width: 46ch; }
.testimonial cite { font-style: normal; font-family: var(--f-sans); font-size: 0.82rem; color: var(--muted); }

.sources { margin: 0; font-family: var(--f-sans); font-size: 0.8rem; color: var(--muted); }
.sources a { color: var(--fg-soft); text-decoration: underline; text-underline-offset: 2px; }
.sources a:hover { color: var(--accent); }

.case-figure--ph .ph { border: 1px dashed var(--line-str); background: var(--bg-3); aspect-ratio: 16 / 9; display: flex; align-items: center; justify-content: center; text-align: center; padding: 1.5rem; }
.case-figure--ph .ph span { font-family: var(--f-sans); font-size: 0.82rem; color: var(--muted); max-width: 44ch; line-height: 1.5; }
.case-figure--ph img { border: none; }

.idphoto { width: 92px; height: 92px; border-radius: 50%; object-fit: cover; margin: 0 0 1.5rem; border: 1px solid var(--line); filter: grayscale(1); }
@media (max-width: 1000px){ .idphoto { width: 76px; height: 76px; } }