/* ==========================================================================
   Simulateurs NSI (réseau, portes logiques, terminal) : éléments communs.
   Chaque simulateur ajoute sa propre feuille (sim-reseau.css, sim-portes.css, sim-terminal.css).

   Identité du site, inchangée : encre #14141a, crème #f7f2ea, rouge #ef4a34 (un seul accent), Manrope.
   Tout est préfixé .sm : style.css, learning.css et brand-hv2.css restent partagés avec le reste du site, et leurs règles génériques
   (main, section, ul, input, button…) ne doivent pas entrer ici. Le contraste est calculé (formule WCAG), pas deviné :
     encre sur blanc 18,4:1 · gris #4a4a52 sur blanc 8,8:1 · gris #6b6b73 sur crème 4,7:1
     bouton plein #c93620 + blanc 5,2:1 (survol #a82a16 : 7,0:1) · rouge #a82a16 sur #fde4de 5,8:1
     vert #0f6b4c sur #e3f4ec 5,7:1 · brun #7a4300 sur #fdf0c7 7,0:1
     bordure de champ #8b8472 sur blanc 3,7:1 (3:1 demandé pour les composants).
   ========================================================================== */

.sm {
  --sm-ink: #14141a;
  --sm-ink-2: #4a4a52;
  --sm-ink-3: #6b6b73;
  --sm-cream: #f7f2ea;
  --sm-cream-2: #efe6d3;
  --sm-card: #ffffff;
  --sm-line: #e6ddc8;
  --sm-line-2: #d5c9a8;
  --sm-field: #8b8472;
  --sm-accent: #ef4a34;
  --sm-accent-deep: #c93620;
  --sm-accent-ink: #a82a16;
  --sm-accent-soft: #fde4de;
  --sm-ok: #0f6b4c;
  --sm-ok-line: #1f9d74;
  --sm-ok-soft: #e3f4ec;
  --sm-warn: #7a4300;
  --sm-warn-soft: #fdf0c7;
  --sm-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, "Liberation Mono", monospace;
  --sm-radius: 14px;

  max-width: 1180px;
  margin: 0 auto;
  padding: 0 0 3rem;
  text-align: left;
  font-family: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--sm-ink);
}

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

.sm h2,
.sm h3,
.sm h4,
.sm p,
.sm ul,
.sm ol,
.sm dl,
.sm dd,
.sm dt,
.sm figure {
  margin: 0;
  padding: 0;
}

.sm ul,
.sm ol {
  list-style: none;
}

.sm [hidden] {
  display: none !important;
}

.sm code,
.sm .sm-mono {
  font-family: var(--sm-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
}

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

.sm a {
  color: var(--sm-accent-ink);
  text-decoration: underline;
  text-decoration-color: rgba(168, 42, 22, 0.4);
  text-underline-offset: 2px;
}

.sm a:hover {
  text-decoration-color: currentColor;
}

.sm :focus-visible {
  outline: 3px solid var(--sm-ink);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- cartes et titres ---------- */

.sm-card {
  background: var(--sm-card);
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius);
  box-shadow: 0 1px 2px rgba(20, 20, 26, 0.05);
  padding: 1rem 1.1rem;
}

.sm-label {
  display: block;
  margin: 0 0 0.55rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--sm-ink-2);
}

.sm-title {
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--sm-ink);
}

.sm-lead {
  color: var(--sm-ink-2);
  font-size: 0.95rem;
  max-width: 64ch;
}

.sm-note {
  font-size: 0.85rem;
  color: var(--sm-ink-2);
}

/* ---------- champs ---------- */

.sm-field {
  display: block;
  min-width: 0;
}

.sm-field > span,
.sm-field > .sm-field__l {
  display: block;
  margin: 0 0 0.25rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--sm-ink);
}

.sm-field > span small,
.sm-field > .sm-field__l small {
  font-weight: 500;
  color: var(--sm-ink-2);
}

.sm-input,
.sm-select {
  display: block;
  width: 100%;
  min-height: 40px;
  padding: 0.45rem 0.65rem;
  border: 1.5px solid var(--sm-field);
  border-radius: 9px;
  background: #fff;
  color: var(--sm-ink);
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.3;
}

.sm-input.sm-mono {
  font-size: 0.92rem;
}

.sm-select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1.5 1.5 6 6l4.5-4.5' fill='none' stroke='%2314141a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
}

.sm-input:hover,
.sm-select:hover {
  border-color: var(--sm-ink-2);
}

.sm-input:focus-visible,
.sm-select:focus-visible {
  outline: 3px solid var(--sm-ink);
  outline-offset: 1px;
  border-color: var(--sm-ink);
}

.sm-input[aria-invalid="true"] {
  border-color: var(--sm-accent-deep);
  background: #fff8f6;
}

/* ---------- boutons ---------- */

.sm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 40px;
  padding: 0.45rem 1rem;
  border: 1.5px solid var(--sm-ink);
  border-radius: 10px;
  background: #fff;
  color: var(--sm-ink);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.sm-btn:hover {
  background: var(--sm-ink);
  color: var(--sm-cream);
}

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

.sm-btn--primary {
  background: var(--sm-accent-deep);
  border-color: var(--sm-accent-deep);
  color: #fff;
}

.sm-btn--primary:hover {
  background: var(--sm-accent-ink);
  border-color: var(--sm-accent-ink);
  color: #fff;
}

.sm-btn--quiet {
  border-color: transparent;
  background: transparent;
  color: var(--sm-ink);
  text-decoration: underline;
  text-decoration-color: rgba(20, 20, 26, 0.35);
  text-underline-offset: 3px;
}

.sm-btn--quiet:hover {
  background: var(--sm-cream-2);
  color: var(--sm-ink);
}

.sm-btn[disabled],
.sm-btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

.sm-btn svg {
  flex: none;
}

/* ---------- commutateur à deux ou trois positions ---------- */

.sm-seg {
  display: inline-flex;
  padding: 3px;
  border: 1.5px solid var(--sm-field);
  border-radius: 11px;
  background: var(--sm-cream);
}

.sm-seg label {
  position: relative;
  cursor: pointer;
}

.sm-seg input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  margin: 0;
}

.sm-seg span {
  display: block;
  padding: 0.35rem 0.8rem;
  border-radius: 8px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--sm-ink-2);
  white-space: nowrap;
}

.sm-seg input:checked + span {
  background: var(--sm-ink);
  color: var(--sm-cream);
}

.sm-seg input:focus-visible + span {
  outline: 3px solid var(--sm-accent-deep);
  outline-offset: 2px;
}

/* ---------- case à cocher ---------- */

.sm-check {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--sm-ink);
  cursor: pointer;
}

.sm-check input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--sm-accent-deep);
  cursor: pointer;
}

/* ---------- pastilles et verdicts ---------- */

.sm-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: var(--sm-cream-2);
  color: var(--sm-ink);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.sm-chip--ok {
  background: var(--sm-ok-soft);
  color: var(--sm-ok);
}

.sm-chip--ko {
  background: var(--sm-accent-soft);
  color: var(--sm-accent-ink);
}

.sm-chip--warn {
  background: var(--sm-warn-soft);
  color: var(--sm-warn);
}

.sm-verdict {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  align-items: start;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1.5px solid var(--sm-line-2);
  background: var(--sm-cream);
}

.sm-verdict:empty {
  display: none;
}

.sm-verdict__b {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
}

.sm-verdict__i {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--sm-ink);
  color: var(--sm-cream);
}

.sm-verdict__t {
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.3;
}

.sm-verdict__p {
  font-size: 0.9rem;
  color: var(--sm-ink);
}

.sm-verdict__h {
  font-size: 0.86rem;
  color: var(--sm-ink-2);
}

.sm-verdict--ok {
  background: var(--sm-ok-soft);
  border-color: var(--sm-ok-line);
}

.sm-verdict--ok .sm-verdict__i {
  background: var(--sm-ok);
  color: #fff;
}

.sm-verdict--ok .sm-verdict__t {
  color: var(--sm-ok);
}

.sm-verdict--ko {
  background: var(--sm-accent-soft);
  border-color: var(--sm-accent);
}

.sm-verdict--ko .sm-verdict__i {
  background: var(--sm-accent-deep);
  color: #fff;
}

.sm-verdict--ko .sm-verdict__t {
  color: var(--sm-accent-ink);
}

/* ---------- tableaux de données ---------- */

.sm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.sm-table th,
.sm-table td {
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid var(--sm-line);
  text-align: left;
}

.sm-table th {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sm-ink-2);
  background: var(--sm-cream);
}

/* ---------- mouvement ---------- */

@media (prefers-reduced-motion: reduce) {
  .sm *,
  .sm *::before,
  .sm *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- en-tête de page : on garde celui des autres fiches, on lui retire seulement la marge démesurée ---------- */

.page-sim .page-header {
  margin-bottom: 1.25rem;
}

.page-sim .container {
  max-width: 1280px;
}

.sm-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.5rem 0 0;
}

noscript .sm-card {
  margin: 1rem 0;
}