/*
 * ATL — thème éditorial 2026
 * Refonte originale : interface claire, sobre et associative.
 * Aucun composant DSFR/CyberV n'est copié ; seuls des principes d'ergonomie
 * (hiérarchie, lisibilité, navigation courte, surfaces claires) sont repris.
 */

:root {
  color-scheme: light;
  --bg: #f4f3ef;
  --bg-soft: #eceff1;
  --panel: #ffffff;
  --panel-2: #f8f8f6;
  --line: #d7dbde;
  --line-strong: #aeb7bd;
  --ink: #18232c;
  --muted: #58646d;
  --muted-2: #7a858d;
  --cyan: #2f6174;
  --blue: #2f6174;
  --purple: #a44d3d;
  --danger: #a23f3f;
  --success: #2f6c54;
  --accent: #a44d3d;
  --accent-soft: #f3e6e1;
  --navy: #203847;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 14px 36px rgba(24, 35, 44, .08);
  --container: 1160px;
  --header-h: 72px;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

html {
  background: var(--bg);
}

body {
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
}

::selection {
  background: #c8d7dd;
  color: var(--ink);
}

.container {
  width: min(calc(100% - 48px), var(--container));
}

.section {
  padding: clamp(72px, 8vw, 104px) 0;
}

.section--soft {
  background: #ebecea;
  border-block: 0;
}

.section__head {
  max-width: 760px;
  margin-bottom: 36px;
}

.section__eyebrow {
  margin-bottom: 10px;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .055em;
  text-transform: uppercase;
}

.section__title {
  max-width: 820px;
  margin-bottom: 14px;
  color: var(--ink);
  font-size: clamp(2rem, 3.6vw, 3.15rem);
  line-height: 1.08;
  letter-spacing: -.035em;
}

.section__lead {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1rem, 1.45vw, 1.08rem);
  line-height: 1.7;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: none;
}

.card:hover {
  border-color: #c0c6ca;
}

.btn {
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 700;
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
}

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

.btn--primary {
  border-color: var(--navy);
  background: var(--navy);
  color: #fff;
  box-shadow: none;
}

.btn--primary:hover {
  border-color: #162b37;
  background: #162b37;
}

.btn--ghost {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--navy);
  background: #fff;
  color: var(--navy);
}

.tag {
  min-height: 26px;
  padding: 4px 9px;
  border-color: #cfd4d7;
  border-radius: 999px;
  background: #f7f7f5;
  color: #5b666d;
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 650;
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--success);
  box-shadow: none;
}

:focus-visible {
  outline: 3px solid #9dbbc7;
  outline-offset: 3px;
}

.skip-link {
  background: var(--navy);
  color: #fff;
}

/* Bandeau de statut */
.construction-banner {
  margin-top: var(--header-h);
  border-bottom: 1px solid #d4d7d8;
  background: #e8ecec;
  color: #48545c;
  font-size: .84rem;
}

.construction-banner .container {
  padding-block: 9px;
}

.construction-banner strong {
  color: var(--ink);
}

/* Navigation */
.site-header,
.site-header.is-scrolled,
.site-header:has(.nav__group.is-open) {
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid #d8dcde;
  box-shadow: none;
  backdrop-filter: blur(12px);
}

.brand {
  gap: 10px;
}

.brand img {
  width: 38px;
  height: 38px;
  border: 1px solid #d5d9db;
  border-radius: 9px;
  background: #f3f4f2;
}

.brand__text strong {
  color: var(--ink);
  font-size: 1rem;
  letter-spacing: .015em;
}

.brand__text small {
  margin-top: 3px;
  color: var(--muted-2);
  font-family: var(--font-body);
  font-size: .64rem;
  font-weight: 600;
  letter-spacing: .02em;
  text-transform: none;
}

.nav__links {
  gap: 1px;
}

.nav__group-toggle {
  min-height: 40px;
  padding: 8px 11px;
  border-radius: 8px;
  color: #4d5961;
  font-size: .88rem;
  font-weight: 650;
}

.nav__group-toggle:hover,
.nav__group-toggle:focus-visible,
.nav__group.is-open > .nav__group-toggle,
.nav__group.has-active-child > .nav__group-toggle {
  border-color: transparent;
  background: #eef1f2;
  color: var(--ink);
}

.nav__group.has-active-child > .nav__group-toggle::after {
  content: "";
  position: absolute;
  right: 11px;
  bottom: 3px;
  left: 11px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}

.nav__submenu {
  width: 310px;
  top: calc(100% + 7px);
}

.nav__submenu-inner {
  padding: 7px;
  border-color: #d7dbde;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(24, 35, 44, .13);
  backdrop-filter: none;
}

.nav__submenu a {
  gap: 2px;
  padding: 10px 11px;
  border-radius: 7px;
}

.nav__submenu a:hover,
.nav__submenu a.is-current,
.nav__submenu a.is-active {
  background: #f0f2f2;
}

.nav__submenu a span {
  color: var(--ink);
  font-size: .88rem;
  font-weight: 700;
}

.nav__submenu a small {
  color: #6f7a81;
  font-size: .73rem;
}

.nav__toggle {
  border-color: #cfd4d7;
  border-radius: 8px;
  background: #fff;
}

.nav__toggle span {
  background: var(--ink);
}

/* Hero : volontairement éditorial, sans mise en scène "cyber" */
.hero {
  min-height: auto;
  padding: clamp(68px, 8vw, 102px) 0 clamp(72px, 8vw, 106px);
  background: #f4f3ef;
  overflow: visible;
}

.hero::before {
  display: none;
}

.hero__layout {
  grid-template-columns: minmax(0, 1.18fr) minmax(330px, .72fr);
  gap: clamp(42px, 7vw, 90px);
  align-items: start;
}

.hero__kicker {
  margin-bottom: 18px;
  color: #52616a;
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: none;
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 22px;
  color: var(--ink);
  font-size: clamp(3rem, 6vw, 5.4rem);
  line-height: .98;
  letter-spacing: -.06em;
}

.hero h1 span {
  background: none;
  color: var(--accent);
  -webkit-text-fill-color: currentColor;
}

.hero__baseline {
  max-width: 700px;
  margin-bottom: 14px;
  color: var(--navy);
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  font-weight: 750;
  line-height: 1.5;
}

.hero__lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.hero__actions {
  margin-bottom: 0;
  gap: 10px;
}

.hero__brief {
  position: sticky;
  top: calc(var(--header-h) + 30px);
  padding: clamp(24px, 4vw, 32px);
  border: 1px solid #cfd4d7;
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow);
}

.hero__brief-label {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.hero__brief h2 {
  margin-bottom: 22px;
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  line-height: 1.2;
  letter-spacing: -.025em;
}

.hero__facts {
  display: grid;
  gap: 0;
  margin: 0 0 22px;
  border-top: 1px solid var(--line);
}

.hero__facts > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  min-width: 0;
  margin: 0;
  padding: 12px 0;
  border-right: 0;
  border-bottom: 1px solid var(--line);
}

.hero__facts dt {
  margin: 0;
  color: var(--muted-2);
  font-family: var(--font-body);
  font-size: .75rem;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
}

.hero__facts dd {
  color: var(--ink);
  font-size: .88rem;
  font-weight: 750;
}

.hero__brief-note {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: .84rem;
  line-height: 1.6;
}

.hero__brief-link {
  color: var(--navy);
  font-size: .88rem;
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Mission */
.mission__layout {
  grid-template-columns: minmax(0, 1fr) minmax(350px, .9fr);
  gap: clamp(42px, 7vw, 86px);
  align-items: start;
}

.mission__points {
  margin-top: 28px;
}

.mission__points article {
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top-color: var(--line);
}

.mission__points article > span,
.launch__steps > div > span {
  color: var(--accent);
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 800;
}

.mission__points p,
.launch__steps p {
  color: var(--muted);
  font-size: .92rem;
}

.mission__visual,
.launch__poster,
.contact__visual {
  padding: 8px;
  background: #ececea;
}

.mission__visual img,
.launch__poster img,
.contact__visual img {
  border-radius: 7px;
  filter: saturate(.48) contrast(.96);
}

.mission__visual figcaption {
  padding: 12px 3px 2px;
  color: var(--muted-2);
  font-family: var(--font-body);
  font-size: .74rem;
}

.mission__visual a {
  color: var(--navy);
  font-weight: 700;
}

/* Activités et challenges */
.activities__grid,
.challenges__grid {
  gap: 14px;
}

.activity,
.challenge {
  min-height: 0;
  padding: 24px;
  border-top: 3px solid #9cabb1;
}

.activity__num,
.challenge__type {
  margin-bottom: 20px;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .04em;
}

.activity h3,
.challenge h3 {
  color: var(--ink);
  font-size: 1.08rem;
}

.activity p,
.challenge p {
  color: var(--muted);
  font-size: .91rem;
  line-height: 1.65;
}

/* Permanences */
.permanences__layout {
  gap: clamp(42px, 7vw, 88px);
}

.permanences__panel {
  padding: clamp(24px, 4vw, 32px);
  border-left: 4px solid var(--navy);
}

.permanences__status {
  color: var(--success);
  font-family: var(--font-body);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .02em;
  text-transform: none;
}

.permanences__panel dt {
  color: var(--muted);
}

.permanences__panel dd {
  color: var(--ink);
  font-family: var(--font-body);
  font-size: .86rem;
  font-weight: 700;
}

.permanences__panel dd.is-pending {
  color: var(--accent);
}

/* Cadre */
.cadre__layout {
  gap: clamp(42px, 7vw, 88px);
}

.cadre__rules {
  padding: clamp(24px, 4vw, 30px);
}

.cadre__rule > span {
  color: var(--danger);
  font-family: var(--font-body);
}

.cadre__rule--ok > span {
  color: var(--success);
}

.cadre__rule p {
  color: var(--muted);
  font-size: .9rem;
}

.cadre__note {
  color: var(--muted-2);
  font-family: var(--font-body);
  font-size: .76rem;
}

/* Lancement */
.launch__layout {
  grid-template-columns: minmax(260px, .62fr) minmax(0, 1.38fr);
  gap: clamp(42px, 7vw, 88px);
}

.launch__poster {
  width: min(100%, 390px);
}

/* Bureau */
.bureau__grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.member {
  padding: 24px;
}

.member__top {
  margin-bottom: 22px;
}

.member__avatar {
  width: 44px;
  height: 44px;
  border: 1px solid #d2d7da;
  border-radius: 50%;
  background: #eef0ef;
  color: var(--navy);
  font-family: var(--font-body);
  font-size: .92rem;
}

.member__status {
  color: var(--accent);
  font-family: var(--font-body);
  font-size: .7rem;
  font-weight: 750;
  letter-spacing: .02em;
  text-transform: none;
}

.member__name {
  color: var(--navy);
  font-family: var(--font-body);
  font-size: .82rem;
  font-weight: 700;
}

.member__description,
.bureau__cta p {
  color: var(--muted);
}

.member a {
  color: var(--navy);
}

.bureau__cta {
  background: #edf0f0;
}

/* Formulaires */
.form-card {
  padding: clamp(24px, 4vw, 32px);
}

.form-field > span,
.form-label {
  color: #424e56;
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 0;
}

.form-field input,
.form-field select,
.form-field textarea {
  border-color: #bec5c9;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #929ba0;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(47, 97, 116, .12);
}

.form-check {
  color: var(--muted);
}

.form-check input {
  accent-color: var(--navy);
}

.form-check a,
.form-note a {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form-status.is-disabled {
  color: var(--accent);
}

.form-note {
  color: var(--muted-2);
}

.join__facts li {
  color: var(--muted);
}

.join__facts li span {
  color: var(--success);
}

/* Contact */
.contact__direct {
  border-left: 4px solid var(--navy);
  background: #fff;
}

.contact__direct > span,
.contact__channels span {
  color: var(--muted-2);
  font-family: var(--font-body);
  font-size: .7rem;
  letter-spacing: .02em;
  text-transform: none;
}

.contact__direct > a,
.contact__channels a.is-enabled {
  color: var(--navy);
}

/* Pages éditoriales */
.content-page {
  padding-top: calc(var(--header-h) + 56px);
  background: var(--bg);
}

.content-page__hero {
  max-width: 870px;
  padding: 56px 0 44px;
}

.content-page__hero h1 {
  max-width: 850px;
  margin-bottom: 18px;
  color: var(--ink);
  font-size: clamp(2.6rem, 5.5vw, 4.8rem);
  line-height: 1;
  letter-spacing: -.055em;
}

.content-page__hero .section__lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.06rem;
}

.breadcrumbs {
  margin-bottom: 28px;
  color: #748087;
  font-size: .79rem;
}

.breadcrumbs a {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-layout {
  gap: clamp(38px, 6vw, 76px);
  padding-bottom: 96px;
}

.article-content {
  min-width: 0;
}

.article-content section {
  padding-block: 34px;
  border-top: 1px solid var(--line);
}

.article-content h2 {
  color: var(--ink);
  font-size: clamp(1.55rem, 2.4vw, 2rem);
  letter-spacing: -.025em;
}

.article-content h3 {
  color: var(--ink);
}

.article-content p,
.article-content li {
  color: #45515a;
  line-height: 1.75;
}

.article-content a:not(.btn):not(.card) {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-toc {
  top: calc(var(--header-h) + 30px);
  padding: 20px;
  background: #fff;
}

.article-toc strong {
  color: var(--ink);
}

.article-toc a {
  color: var(--muted);
}

.article-toc a:hover {
  color: var(--navy);
}

.source-note {
  border-left: 3px solid #aeb8bd;
  background: #ecefee;
  color: #5f6a71;
}

.fact-grid {
  gap: 12px;
}

.fact-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.fact-card strong {
  color: var(--accent);
}

.method-steps li {
  border-color: var(--line);
  background: #fff;
}

.related-links {
  gap: 12px;
}

.related-links a {
  color: var(--ink);
  font-weight: 700;
}

.related-links a:hover {
  border-color: var(--navy);
  color: var(--navy);
  transform: translateY(-1px);
}

.article-callout {
  border-color: #cbd2d5;
  background: #edf0ef;
}

/* Toolbox */
.toolbox-page {
  background: #f4f3ef;
}

.toolbox-hero h1 span {
  color: var(--accent);
}

.toolbox-controls {
  position: sticky;
  top: var(--header-h);
  z-index: 30;
  margin: 0 0 48px;
  padding: 16px 0;
  border-block: 1px solid var(--line);
  background: rgba(244, 243, 239, .96);
  backdrop-filter: blur(10px);
}

.tool-search {
  border-color: #bfc6ca;
  border-radius: 9px;
  background: #fff;
  box-shadow: none;
}

.tool-search:focus-within {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(47,97,116,.1);
}

.tool-search input {
  color: var(--ink);
}

.tool-search input::placeholder {
  color: #899399;
}

.tool-search kbd {
  border-color: #d4d8da;
  background: #f1f2f0;
  color: #727c82;
}

.tool-filters {
  gap: 7px;
}

.tool-filter {
  border-color: #c9ced1;
  border-radius: 999px;
  background: #fff;
  color: #536069;
}

.tool-filter:hover {
  border-color: #9aa7ad;
  color: var(--ink);
}

.tool-filter.is-active {
  border-color: var(--navy);
  background: var(--navy);
  color: #fff;
}

.toolbox-results {
  color: var(--muted-2);
}

.toolbox-results strong {
  color: var(--ink);
}

.toolbox-section {
  margin-bottom: 68px;
}

.toolbox-section--musthave {
  padding: 30px;
  border: 1px solid #d3d8da;
  border-radius: 14px;
  background: #e9edec;
}

.toolbox-section__head {
  border-bottom-color: #cdd3d5;
}

.toolbox-section__head h2 {
  color: var(--ink);
  letter-spacing: -.025em;
}

.toolbox-section__head span,
.toolbox-section__intro {
  color: var(--muted);
}

.tool-grid {
  gap: 12px;
}

.tool-card {
  border-color: #d3d7d9;
  border-radius: 10px;
  background: #fff;
  box-shadow: none;
}

.tool-card::before {
  background: #aebac0;
}

.toolbox-section--musthave .tool-card::before {
  background: var(--accent);
}

.tool-card:hover {
  border-color: #aeb8bd;
  box-shadow: 0 10px 24px rgba(24,35,44,.07);
  transform: translateY(-2px);
}

.tool-card__icon {
  border-color: #d5dade;
  border-radius: 7px;
  background: #f0f1ef;
  color: var(--navy);
  font-family: var(--font-body);
  font-size: .68rem;
  font-weight: 800;
}

.tool-card__essential {
  color: var(--accent);
  font-family: var(--font-body);
  font-size: .67rem;
  font-weight: 800;
  letter-spacing: .02em;
}

.tool-card h3 {
  color: var(--ink);
}

.tool-card p {
  color: var(--muted);
}

.tool-card__tags span {
  border-color: #d7dbdd;
  background: #f5f6f4;
  color: #68737a;
}

.tool-card__link {
  color: var(--navy);
  font-weight: 750;
}

.tool-card__link:hover {
  color: var(--accent);
}

.toolbox-empty {
  border-color: var(--line);
  background: #fff;
  color: var(--muted);
}

/* Footer */
.site-footer {
  padding: 46px 0 28px;
  border-top: 4px solid var(--navy);
  background: #fff;
}

.site-footer__top p {
  color: var(--muted);
}

.site-footer__top > a:last-child,
.site-footer__links a {
  color: var(--navy);
}

.site-footer__links {
  border-color: var(--line);
  color: var(--muted);
}

.site-footer__links > span {
  color: var(--muted-2);
  font-family: var(--font-body);
  font-size: .72rem;
  letter-spacing: .02em;
  text-transform: none;
}

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

.site-footer__bottom {
  border-color: var(--line);
  color: var(--muted-2);
  font-family: var(--font-body);
  font-size: .72rem;
}

/* Messages techniques */
.noscript,
.section-load-error {
  border-color: #d5a9a9;
  background: #f8eaea;
}

/* Mobile */
@media (max-width: 930px) {
  .nav__links {
    background: #fff;
    border-left-color: #d8dcde;
    box-shadow: -18px 0 38px rgba(24, 35, 44, .10);
  }

  .nav__group {
    border-color: #d8dcde;
    border-radius: 10px;
    background: #fff;
  }

  .nav__group-toggle:hover,
  .nav__group-toggle:focus-visible,
  .nav__group.is-open > .nav__group-toggle,
  .nav__group.has-active-child > .nav__group-toggle {
    background: #eef1f2;
  }
}

@media (max-width: 980px) {
  .hero {
    padding-top: 64px;
  }

  .hero__layout {
    grid-template-columns: 1fr;
  }

  .hero__brief {
    position: static;
    max-width: 700px;
  }
}

@media (max-width: 850px) {
  .bureau__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 30px), var(--container));
  }

  .construction-banner {
    font-size: .79rem;
  }

  .content-page {
    padding-top: calc(var(--header-h) + 34px);
  }

  .content-page__hero {
    padding-top: 36px;
  }

  .toolbox-controls {
    position: static;
  }

  .toolbox-section--musthave {
    padding: 20px;
  }
}

@media (max-width: 620px) {
  .hero h1 {
    font-size: clamp(2.75rem, 14vw, 4rem);
  }

  .hero__facts {
    display: grid;
  }

  .hero__facts > div {
    grid-template-columns: 92px 1fr;
  }

  .hero__actions {
    display: grid;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tool-card:hover,
  .related-links a:hover,
  .btn:hover {
    transform: none;
  }
}

/* Le logo reste l'identité ATL, mais l'interface ne reprend pas son esthétique néon. */
.brand img { filter: saturate(.68) contrast(.96); }