/* ExpertRisk Cybertech — feuille de style unique, sans dépendance externe */

:root {
  --navy: #0f2a4a;
  --navy-deep: #0a1f38;
  --navy-line: #2c4d75;
  --paper: #f3f7fa;
  --paper-2: #e3ecf3;
  --ink: #14253a;
  --ink-2: #465a70;
  --rule: #c3d2df;
  --turq: #2ec4b6;
  --turq-hover: #4bd6c9;
  --teal: #0b6e78;
  --on-navy: #f3f7fa;
  --on-navy-2: #b8cce0;

  /* échelle de la matrice de risques */
  --h1: #cdefea;
  --h2: #e4f0d4;
  --h3: #f6e19a;
  --h4: #f0a95a;
  --h5: #bf4a33;

  /* Polices système : aucune requête externe. Titres de type signalétique, texte courant à empattements. */
  --sans: Bahnschrift, "DIN Alternate", "Franklin Gothic Medium", "Arial Nova", system-ui, sans-serif;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;

  --wrap: 72rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
}

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

html {
  scroll-padding-top: 5.5rem;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.125rem/1.62 var(--serif);
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3 {
  margin: 0;
  font-family: var(--sans);
  font-weight: 700;
  color: inherit;
}

p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }

a:not(.btn) {
  color: var(--navy);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}
a:not(.btn):hover { text-decoration-thickness: 0.16em; }

.dark { color: var(--on-navy); }
.dark a:not(.btn) { color: var(--on-navy); }

:focus-visible {
  outline: 3px solid var(--navy);
  outline-offset: 3px;
}
.dark :focus-visible { outline-color: var(--turq); }

.wrap {
  width: min(100% - 2 * var(--gutter), var(--wrap));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 50;
  padding: 0.6rem 1rem;
  background: var(--turq);
  color: var(--navy);
  font: 700 1rem/1.2 var(--sans);
  text-decoration: none;
}
.skip:focus { top: 1rem; }

/* ───────── Boutons ───────── */

.btn {
  display: inline-block;
  padding: 0.8rem 1.3rem;
  border: 2px solid transparent;
  border-radius: 2px;
  font: 700 1rem/1.2 var(--sans);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s;
}
.btn-turq { background: var(--turq); border-color: var(--turq); color: var(--navy); }
.btn-turq:hover { background: var(--turq-hover); border-color: var(--turq-hover); }
.btn-ghost { border-color: var(--on-navy-2); color: var(--on-navy); }
.btn-ghost:hover { border-color: var(--on-navy); }
.btn-navy { background: var(--navy); border-color: var(--navy); color: var(--on-navy); }
.btn-navy:hover { background: var(--navy-deep); border-color: var(--navy-deep); }

/* ───────── Bandeau de disponibilité ───────── */

.avail {
  background: var(--turq);
  color: var(--navy);
  font: 600 0.95rem/1.4 var(--sans);
  padding: 0.55rem 0;
}
.avail .wrap { display: flex; flex-wrap: wrap; gap: 0.15rem 1rem; }
.avail p { margin: 0; }
.avail a:not(.btn) { color: var(--navy); }

/* ───────── En-tête ───────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--navy);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font: 400 1.2rem/1 var(--sans);
  text-decoration: none;
}
.site-header .brand,
.site-footer .brand { color: var(--on-navy); text-decoration: none; }
.brand b { font-weight: 700; }
.brand-mark { display: block; height: 3.25rem; width: auto; flex: none; }
.site-footer .brand-mark { height: 3rem; }

.nav { display: flex; align-items: center; gap: 0.2rem 1.4rem; flex-wrap: wrap; }
.site-header .nav a {
  padding: 0.35rem 0;
  font: 600 1rem/1.2 var(--sans);
  text-decoration: none;
}
.site-header .nav a:hover { text-decoration: underline; text-underline-offset: 0.3em; }
.site-header .nav a.nav-cta {
  padding: 0.5rem 0.95rem;
  border: 2px solid var(--turq);
  border-radius: 2px;
  color: var(--turq);
}
.site-header .nav a.nav-cta:hover { background: var(--turq); color: var(--navy); text-decoration: none; }

.nav-toggle {
  display: none;
  padding: 0.5rem 0.9rem;
  border: 2px solid var(--on-navy-2);
  border-radius: 2px;
  background: none;
  color: var(--on-navy);
  font: 600 1rem/1.2 var(--sans);
  cursor: pointer;
}

@media (max-width: 62rem) {
  .js .nav-toggle { display: inline-block; }
  .js .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    padding: 1rem var(--gutter) 1.4rem;
    background: var(--navy);
    border-top: 1px solid var(--navy-line);
  }
  .js .nav.is-open { display: flex; }
  .header-inner { position: relative; }
  .site-header { position: sticky; }
}

/* ───────── Héros ───────── */

.hero { background: var(--navy); padding: clamp(2rem, 4vw, 3rem) 0 clamp(3rem, 7vw, 5rem); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 27rem);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.6vw, 3.7rem);
  line-height: 1.04;
  letter-spacing: -0.015em;
  text-wrap: balance;
  margin-bottom: 1.6rem;
}
.lead {
  max-width: 36rem;
  font-size: 1.2rem;
  line-height: 1.58;
  color: var(--on-navy-2);
}
.lead strong { color: var(--on-navy); font-family: var(--sans); font-weight: 700; }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.8rem 0 0; }

@media (max-width: 56rem) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
}

/* ───────── Matrice de risques ───────── */

.hero-visual { width: 100%; max-width: 27rem; justify-self: end; }
@media (max-width: 56rem) { .hero-visual { justify-self: start; } }

.mx { width: 100%; height: auto; }
.axis { fill: var(--on-navy-2); font: 600 13px var(--sans); }
.axis-title { fill: var(--on-navy); font: 700 14px var(--sans); }
.c1 { fill: var(--h1); }
.c2 { fill: var(--h2); }
.c3 { fill: var(--h3); }
.c4 { fill: var(--h4); }
.c5 { fill: var(--h5); }
.sc { fill: var(--ink); font: 600 11px var(--sans); text-anchor: start; opacity: 0.8; }
.sc.s5 { fill: #fff; opacity: 0.95; }

.ghost { fill: none; stroke: var(--paper); stroke-width: 2.5; stroke-dasharray: 4 4; }
.mk-ring { fill: var(--paper); stroke: var(--navy); stroke-width: 4; }
.mk-dot { fill: var(--navy); }
.trace { fill: none; stroke: var(--paper); stroke-width: 2.5; stroke-dasharray: 7 6; stroke-linecap: round; opacity: 0; }
.arrowhead { fill: var(--paper); }

.marker { transform: translate(293px, 47px); }
.is-treated .marker { transform: translate(161px, 179px); }
.is-treated .trace { opacity: 1; }

@media (prefers-reduced-motion: no-preference) {
  .marker { transition: transform 1s cubic-bezier(0.45, 0.05, 0.2, 1); }
  .trace { transition: opacity 0.5s 0.45s; }
}

.ledger { margin-top: 1.1rem; border-top: 2px solid var(--navy-line); padding-top: 0.9rem; }
.ledger-title { margin: 0 0 0.5rem; font: 700 1rem/1.35 var(--sans); }
.ledger dl { margin: 0; }
.ledger-row {
  display: grid;
  grid-template-columns: 7.2rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-top: 1px solid var(--navy-line);
  font-size: 1rem;
  line-height: 1.45;
}
.ledger-row dt { font: 700 0.95rem/1.45 var(--sans); }
.ledger-row dd { margin: 0; color: var(--on-navy-2); }
.ledger-row dd strong { color: var(--on-navy); font-family: var(--sans); }
.ledger-measures { margin: 0.5rem 0 1rem; font-size: 0.95rem; line-height: 1.5; color: var(--on-navy-2); }

.js .ledger .residual,
.js .ledger .ledger-measures { opacity: 0.4; }
.js .is-treated .ledger .residual,
.js .is-treated .ledger .ledger-measures { opacity: 1; }
@media (prefers-reduced-motion: no-preference) {
  .js .ledger .residual,
  .js .ledger .ledger-measures { transition: opacity 0.5s 0.5s; }
}

#treat[hidden] { display: none; }

/* ───────── Certifications ───────── */

.certs { background: var(--paper-2); border-bottom: 1px solid var(--rule); padding: 1.6rem 0; }
.plates { list-style: none; display: flex; flex-wrap: wrap; gap: 0.75rem; }
.plate {
  padding: 0.65rem 1.5rem 0.65rem 1rem;
  background: var(--navy);
  color: var(--on-navy);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}
.plate strong { display: block; font: 700 1rem/1.3 var(--sans); }
.plate span { display: block; font: 500 0.85rem/1.3 var(--sans); color: var(--on-navy-2); }

/* ───────── Sections ───────── */

.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section.alt { background: var(--paper-2); }
.section.dark { background: var(--navy); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 16rem) minmax(0, 1fr);
  gap: 1.5rem clamp(2rem, 5vw, 4.5rem);
  padding-top: 1.75rem;
  border-top: 2px solid var(--ink);
}
.dark .split { border-top-color: var(--on-navy-2); }

.side { align-self: start; }
.side h2 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.6rem, 2.6vw, 2.05rem);
  line-height: 1.1;
}
.side p { margin: 0; font-size: 1rem; line-height: 1.5; color: var(--ink-2); }
.dark .side p { color: var(--on-navy-2); }

@media (min-width: 60.01rem) {
  .side { position: sticky; top: 5.5rem; }
}
@media (max-width: 60rem) {
  .split { grid-template-columns: minmax(0, 1fr); }
}

.content { max-width: 46rem; }

/* Listes à puces carrées (repères de signalétique) */
.marks { list-style: none; }
.marks li { position: relative; padding-left: 1.15rem; margin-bottom: 0.45rem; }
.marks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--teal);
}
.dark .marks li::before { background: var(--turq); }

/* ───────── Registre d’expertise ───────── */

.row {
  display: grid;
  grid-template-columns: minmax(0, 11rem) minmax(0, 1fr);
  gap: 0.6rem 2rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--rule);
}
.row:first-child { padding-top: 0; border-top: 0; }
.row h3 { font-size: 1.15rem; line-height: 1.25; }
.refs { margin: 0.4rem 0 0; font: 600 0.85rem/1.45 var(--sans); color: var(--ink-2); }
.row p { margin: 0; }
.row .field { margin-top: 0.7rem; font-size: 0.98rem; line-height: 1.55; color: var(--ink-2); }
.field strong { font-family: var(--sans); color: var(--ink); }

@media (max-width: 40rem) {
  .row { grid-template-columns: minmax(0, 1fr); }
}

/* ───────── Section IA ───────── */

.lead-light { font-size: 1.2rem; line-height: 1.58; }
.cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem 2.5rem; margin: 2rem 0; }
.cols h3 { margin-bottom: 0.9rem; font-size: 1.15rem; }
.cols .marks li { font-size: 1rem; line-height: 1.5; }
@media (max-width: 44rem) { .cols { grid-template-columns: minmax(0, 1fr); } }

.note { margin: 0; padding-left: 1.1rem; border-left: 4px solid var(--turq); font-size: 1rem; line-height: 1.55; color: var(--on-navy-2); }
.note strong { color: var(--on-navy); font-family: var(--sans); }

/* ───────── Méthode ───────── */

.questions { list-style: none; counter-reset: q; }
.questions li {
  counter-increment: q;
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: 0 1rem;
  padding: 1.35rem 0;
  border-top: 1px solid var(--rule);
}
.questions li:first-child { padding-top: 0; border-top: 0; }
.questions li::before {
  content: counter(q);
  font: 700 2.4rem/1 var(--sans);
  color: var(--navy);
}
.questions h3 { margin-bottom: 0.4rem; font-size: 1.25rem; line-height: 1.25; }
.questions p { margin: 0; }
.closing { margin: 1.6rem 0 0; padding-top: 1.4rem; border-top: 2px solid var(--ink); font-size: 1.1rem; }

/* ───────── Parcours ───────── */

.about {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 1.5rem 2rem;
  align-items: start;
  margin-bottom: 2.5rem;
}
.portrait {
  width: 11rem;
  height: auto;
  aspect-ratio: 260 / 280;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}
.about p:last-child { margin-bottom: 0; }
@media (max-width: 40rem) {
  .about { grid-template-columns: minmax(0, 1fr); }
  .portrait { width: 8.5rem; }
}

.job {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: 0.4rem 2rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--rule);
}
.when { margin: 0; font: 700 0.95rem/1.5 var(--sans); color: var(--ink-2); }
.job h3 { font-size: 1.15rem; line-height: 1.25; }
.org { margin: 0.15rem 0 0.7rem; font: 600 0.95rem/1.4 var(--sans); color: var(--ink-2); }
.job .marks li { font-size: 1rem; line-height: 1.5; margin-bottom: 0.35rem; }
.job.brief { padding: 1.1rem 0; }
.job.brief .org { margin-bottom: 0.2rem; }
.job.brief p { margin: 0; font-size: 1rem; line-height: 1.5; }
.job.brief h3 + p { margin-top: 0.3rem; }
@media (max-width: 40rem) {
  .job { grid-template-columns: minmax(0, 1fr); }
}

/* ───────── Formation et communauté ───────── */

.block + .block { margin-top: 2.5rem; }
.block h3 { margin-bottom: 1rem; font-size: 1.2rem; }
.facts { list-style: none; }
.facts li { padding: 0.8rem 0; border-top: 1px solid var(--rule); }
.facts li:first-child { padding-top: 0; border-top: 0; }
.facts strong { font-family: var(--sans); }
.facts span { display: block; font-size: 0.98rem; line-height: 1.5; color: var(--ink-2); }

/* ───────── Veille ───────── */

.notes { list-style: none; }
.notes li { padding: 1.5rem 0; border-top: 1px solid var(--rule); }
.notes li:first-child { padding-top: 0; border-top: 0; }
.notes h3 { margin-bottom: 0.5rem; font-size: 1.2rem; line-height: 1.25; }
.notes p { margin: 0 0 0.5rem; }
.src { font: 600 0.95rem/1.4 var(--sans); }
.more { margin: 1.5rem 0 0; font: 600 1rem/1.5 var(--sans); }

/* ───────── Contact ───────── */

.routes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1.8rem; }
.routes.single { grid-template-columns: minmax(0, 1fr); }
.route {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem 1.5rem 1.7rem;
  background: var(--navy-deep);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}
.route h3 { margin-bottom: 0.6rem; font-size: 1.25rem; line-height: 1.25; }
.route p { margin: 0 0 1.3rem; font-size: 1rem; line-height: 1.55; color: var(--on-navy-2); }
.route .btn { margin-top: auto; }
@media (max-width: 44rem) { .routes { grid-template-columns: minmax(0, 1fr); } }

.contact-meta { margin: 0 0 0.5rem; font-size: 1rem; line-height: 1.55; color: var(--on-navy-2); }
.contact-links { display: flex; flex-wrap: wrap; gap: 0.4rem 1.6rem; margin: 0; font: 600 1rem/1.5 var(--sans); }

/* ───────── Pied de page ───────── */

.site-footer { background: var(--navy-deep); color: var(--on-navy-2); padding: 2.2rem 0; font: 400 0.95rem/1.55 var(--sans); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.2rem 3rem; }
.site-footer p { margin: 0.4rem 0 0; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.3rem 1.4rem; align-items: flex-start; }
.site-footer a:not(.brand) { color: var(--on-navy); }

/* ───────── Pages légales et 404 ───────── */

.page-head { background: var(--navy); padding: clamp(2rem, 5vw, 3.5rem) 0; }
.page-head h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.08; letter-spacing: -0.01em; }
.page-head p { margin: 0.8rem 0 0; color: var(--on-navy-2); font-size: 1.05rem; }

.prose { max-width: 46rem; padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(3rem, 7vw, 5rem); }
.prose h2 { margin: 2.2rem 0 0.7rem; font-size: 1.35rem; line-height: 1.2; }
.prose h2:first-child { margin-top: 0; }
.prose ul { margin: 0 0 1em; padding-left: 1.2rem; }
.prose li { margin-bottom: 0.3rem; }
.prose .meta { color: var(--ink-2); font-size: 0.98rem; }

.notfound { padding: clamp(3rem, 8vw, 6rem) 0; }
.notfound h1 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; }
.notfound p { max-width: 34rem; }

@media print {
  .site-header, .avail, .nav-toggle, #treat { display: none !important; }
  body { background: #fff; }
}