/* Portfolio SISR : sobre, lisible, une seule couleur d'accent. */
:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #16202b;
  --muted: #5a6776;
  --line: #dde2e8;
  --accent: #1f4e8c;
  --accent-soft: #e8eff8;
  --ok: #1d6b45;
  --code-bg: #f0f2f5;
  --f-body: "IBM Plex Sans", "Segoe UI", Roboto, Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f151c; --surface: #151d26; --ink: #e6ebf1; --muted: #93a1b0; --line: #26313d;
    --accent: #7fa8de; --accent-soft: #19283a; --ok: #5ec58f; --code-bg: #0c1218;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.65 var(--f-body); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
h1, h2, h3 { margin: 0; line-height: 1.2; font-weight: 600; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.05rem; }
p { margin: 0; }
code, .mono { font-family: var(--f-mono); }
code { font-size: 0.88em; background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 3px; }
.muted { color: var(--muted); }
.lede { font-size: 1.1rem; color: var(--muted); max-width: 62ch; }
.label { font: 500 0.75rem/1 var(--f-mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }

.wrap { width: 100%; max-width: 1060px; margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }

/* En-tête */
.top { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; padding-block: 14px; }
.brand { font-weight: 600; text-decoration: none; color: var(--ink); }
.brand small { font: 400 0.82rem var(--f-mono); color: var(--muted); margin-left: 10px; }
.nav { display: flex; gap: 4px 22px; flex-wrap: wrap; }
.nav a { text-decoration: none; color: var(--muted); font-size: 0.95rem; }
.nav a:hover, .nav a[aria-current] { color: var(--ink); }

/* Boutons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border: 1px solid var(--line); border-radius: 4px;
  background: var(--surface); color: var(--ink); font: 500 0.95rem var(--f-body); text-decoration: none; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn-main { background: var(--accent); border-color: var(--accent); color: #fff; }
@media (prefers-color-scheme: dark) { .btn-main { color: #0b1119; } }
.btn-main:hover { filter: brightness(1.08); }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

/* Sections */
section.band { padding-block: 64px; border-top: 1px solid var(--line); }
section.band.alt { background: var(--surface); }
.sec-head { display: flex; justify-content: space-between; align-items: end; gap: 16px 32px; flex-wrap: wrap; margin-bottom: 28px; }
.sec-head p { margin-top: 6px; }

/* Accueil */
.hero { padding-block: 64px 56px; }
.hero-in { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px 56px; align-items: center; }
.hero h1 { margin: 10px 0 14px; }
.avail { margin-top: 18px; font-size: 0.95rem; padding-left: 12px; border-left: 3px solid var(--accent); }
.diagram { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 14px; }
.diagram svg { display: block; width: 100%; height: auto; }
.diagram figcaption { font-size: 0.8rem; color: var(--muted); margin-top: 8px; }
.diagram .n { fill: var(--surface); stroke: var(--accent); stroke-width: 1.4; }
.diagram .z { fill: none; stroke: var(--line); stroke-width: 1.2; stroke-dasharray: 5 4; }
.diagram .l { stroke: var(--muted); stroke-width: 1.2; fill: none; }
.diagram text { font: 500 11px var(--f-mono); fill: var(--ink); }
.diagram text.d { fill: var(--muted); font-weight: 400; font-size: 10px; }
@media (max-width: 820px) { .hero-in { grid-template-columns: 1fr; } .hero { padding-block: 40px; } }

.filters { display: flex; gap: 6px; flex-wrap: wrap; }
.filt { border: 1px solid var(--line); background: var(--surface); color: var(--muted); padding: 6px 13px; border-radius: 4px; font: 500 0.85rem var(--f-body); cursor: pointer; }
.filt.is-on { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card { display: flex; flex-direction: column; gap: 10px; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px;
  text-decoration: none; color: var(--ink); }
a.card:hover { border-color: var(--accent); }
.card[hidden] { display: none; }
.card p { color: var(--muted); font-size: 0.94rem; }
.card-ctx { margin-top: auto; padding-top: 8px; font: 400 0.78rem var(--f-mono); color: var(--muted); }
.card-top { display: flex; justify-content: space-between; gap: 8px; }
.chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.chips li { font: 400 0.78rem var(--f-mono); padding: 2px 8px; border-radius: 3px; background: var(--accent-soft); color: var(--accent); }
.wipcard { border-style: dashed; background: transparent; }
.wip + .wip { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.wip h3 { margin-bottom: 4px; }

/* Compétences */
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(185px, 1fr)); gap: 14px; }
.sk { padding: 20px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); }
.sk h3 { margin-bottom: 4px; }
.sk .label { display: block; margin-bottom: 12px; }
.sk ul { margin: 0; padding-left: 1.1em; color: var(--muted); font-size: 0.94rem; }
.sk li { margin-bottom: 3px; }

/* Parcours */
.cv { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; }
.timeline { list-style: none; margin: 24px 0 18px; padding: 0; }
.timeline li { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding-block: 14px; border-top: 1px solid var(--line); }
.timeline li:last-child { border-bottom: 1px solid var(--line); }
.when { font: 400 0.82rem/1.6 var(--f-mono); color: var(--muted); }
.timeline p { color: var(--muted); font-size: 0.94rem; }
.cv-card { align-self: start; padding: 24px; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; display: grid; gap: 12px; justify-items: start; }
@media (max-width: 820px) { .cv { grid-template-columns: 1fr; } .timeline li { grid-template-columns: 1fr; gap: 2px; } }

.contact { display: grid; gap: 14px; justify-items: start; }
.mail { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.mail .mono { padding: 9px 14px; border: 1px solid var(--line); border-radius: 4px; background: var(--bg); }

/* Pied de page */
.foot { border-top: 1px solid var(--line); padding-block: 22px; color: var(--muted); font-size: 0.85rem; }
.foot-in { display: flex; justify-content: space-between; gap: 8px 24px; flex-wrap: wrap; }

/* Statut */
.state { font: 500 0.75rem var(--f-mono); color: var(--ok); }
.state::before { content: "● "; }
.state.st-wip { color: #9a6200; }

/* Articles */
.article { padding-block: 36px 56px; }
.back { display: inline-block; margin-bottom: 22px; font-size: 0.9rem; text-decoration: none; }
.a-head { margin-bottom: 32px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.a-head h1 { margin: 10px 0 12px; }
.a-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 48px; }
.a-meta { align-self: start; position: sticky; top: 76px; font-size: 0.9rem; }
.a-meta dl { margin: 0 0 18px; }
.a-meta dl div { padding-block: 9px; border-bottom: 1px solid var(--line); }
.a-meta dt { font: 500 0.72rem var(--f-mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.a-meta dd { margin: 2px 0 0; }
.a-meta .label { display: block; margin-bottom: 8px; }
.a-sec { margin-bottom: 40px; }
.a-sec h2 { font-size: 1.3rem; margin-bottom: 14px; }
.a-sec > p, .a-sec > ul, .a-sec > ol { max-width: 70ch; }
.a-sec p + p, .a-sec p + ul, .a-sec ul + p, .a-sec p + ol, .a-sec figure + p, .a-sec pre + p, .a-sec p + figure, .a-sec p + pre { margin-top: 14px; }
.a-sec ul, .a-sec ol { padding-left: 1.2em; }
.a-sec li { margin-bottom: 6px; }
.a-sec li::marker { color: var(--muted); }
pre { margin: 14px 0; padding: 16px; background: var(--code-bg); border: 1px solid var(--line); border-radius: 5px; overflow-x: auto; font: 400 0.84rem/1.55 var(--f-mono); }
pre code { background: none; padding: 0; font-size: inherit; }
figure { margin: 18px 0; }
figure img { display: block; max-width: 100%; height: auto; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); }
figcaption { margin-top: 6px; font-size: 0.84rem; color: var(--muted); }
.tbl { overflow-x: auto; margin: 14px 0; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 500 0.75rem var(--f-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.limits { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 0 5px 5px 0; padding: 18px 22px; }
.limits h2 { margin-bottom: 10px; }
.bts { list-style: none; padding: 0 !important; display: flex; flex-wrap: wrap; gap: 8px; }
.bts li { margin: 0; padding: 4px 10px; border: 1px solid var(--line); border-radius: 3px; font-size: 0.88rem; }
.bts b { font: 500 0.75rem var(--f-mono); color: var(--accent); margin-right: 6px; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.pager a { padding: 14px 16px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); text-decoration: none; color: var(--ink); font-size: 0.93rem; }
.pager a:hover { border-color: var(--accent); }
.pager .nx { text-align: right; }
.pager .lbl { display: block; font: 400 0.75rem var(--f-mono); color: var(--muted); margin-bottom: 2px; }
@media (max-width: 820px) { .a-grid { grid-template-columns: 1fr; gap: 24px; } .a-meta { position: static; } .pager { grid-template-columns: 1fr; } .pager .nx { text-align: left; } }