/* Site de présentation de Discus (discus.icu) — charte de l'application (accent rouge). Aucune ressource tierce. */
:root {
  --bg: #ffffff; --surface: #f4f5f7; --surface-2: #e9ebef; --line: #e1e4e9;
  --text: #0e0f12; --muted: #5d636e; --accent: #c8102e; --accent-ink: #ffffff; --ok: #12805c; --appel: #157a3d;
  --ombre: 0 24px 50px -28px rgb(15 17 22 / 35%);
  --font: -apple-system, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0e0f12; --surface: #17191e; --surface-2: #20232a; --line: #2a2e36; --text: #eceef2; --muted: #9aa1ad; --accent: #ff5d6c; --accent-ink: #0b0d12; --ok: #3ccf91; --ombre: 0 24px 50px -28px rgb(0 0 0 / 70%); }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 17px/1.6 var(--font); color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
img { max-width: 100%; height: auto; }
.contenu { width: min(1120px, 100% - 32px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.evitement { position: absolute; left: -9999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 8px; z-index: 20; }
.evitement:focus { left: 16px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }

/* --- Boutons ------------------------------------------------------------------------- */
.bouton { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 12px; padding: 12px 20px; font: 600 16px var(--font); text-decoration: none; cursor: pointer; white-space: nowrap; transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease; }
.bouton:hover { color: var(--accent-ink); filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 10px 22px -12px var(--accent); }
.bouton:active { transform: translateY(0) scale(0.98); }
.bouton.secondaire { background: var(--surface); color: var(--text); }
.bouton.secondaire:hover { color: var(--text); background: var(--surface-2); box-shadow: none; }
section.alt .bouton.secondaire { background: var(--bg); }
.bouton:disabled { opacity: 0.6; cursor: progress; transform: none; }

/* --- En-tête ------------------------------------------------------------------------- */
.entete { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.entete .contenu { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 0; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: 0.06em; }
.logo img { border-radius: 8px; }
.nav { display: flex; gap: 20px; align-items: center; }
.nav a:not(.bouton) { color: var(--text); text-decoration: none; font-size: 15px; position: relative; }
.nav a:not(.bouton)::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform 180ms ease; }
.nav a:not(.bouton):hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav .bouton { padding: 9px 16px; font-size: 15px; }
.menu-bouton { display: none; width: 44px; height: 44px; border: 0; border-radius: 10px; background: var(--surface); cursor: pointer; position: relative; }
.menu-bouton span[aria-hidden], .menu-bouton span[aria-hidden]::before, .menu-bouton span[aria-hidden]::after { position: absolute; left: 12px; width: 20px; height: 2px; background: var(--text); transition: transform 200ms ease, background 200ms ease; }
.menu-bouton span[aria-hidden] { top: 21px; }
.menu-bouton span[aria-hidden]::before { content: ""; left: 0; top: -6px; }
.menu-bouton span[aria-hidden]::after { content: ""; left: 0; top: 6px; }
.menu-bouton[aria-expanded="true"] span[aria-hidden] { background: transparent; }
.menu-bouton[aria-expanded="true"] span[aria-hidden]::before { transform: translateY(6px) rotate(45deg); }
.menu-bouton[aria-expanded="true"] span[aria-hidden]::after { transform: translateY(-6px) rotate(-45deg); }
@media (max-width: 1040px) {
  .menu-bouton { display: block; }
  .nav { position: absolute; top: 100%; left: -16px; right: -16px; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px 18px; background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--ombre); }
  .nav:not(.ouvert) { display: none; }
  .nav a:not(.bouton) { padding: 12px 4px; border-bottom: 1px solid var(--line); }
  .nav a:not(.bouton)::after { display: none; }
  .nav .bouton { margin-top: 12px; }
}

/* --- Fil d'Ariane, titres de page ---------------------------------------------------- */
.ariane ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 16px 0 0; margin: 0; font-size: 14px; color: var(--muted); }
.ariane li + li::before { content: "›"; margin-right: 6px; }
.ariane a { color: var(--muted); }
.entete-page { padding: 40px 0 24px; }
.entete-page h1 { font-size: clamp(32px, 4.4vw, 50px); line-height: 1.1; letter-spacing: -0.03em; margin: 8px 0 14px; }
.chapeau { font-size: 19px; color: var(--muted); max-width: 40em; }

/* --- Héros --------------------------------------------------------------------------- */
.heros { padding: 64px 0 56px; overflow: hidden; }
.heros .contenu { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .heros .contenu { grid-template-columns: 1fr; } .heros { padding-top: 32px; } }
.etiquette { display: inline-flex; gap: 8px; align-items: center; font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ok); }
h1 { font-size: clamp(36px, 5vw, 58px); line-height: 1.07; letter-spacing: -0.03em; margin: 14px 0 18px; }
h1 em, h2 em { font-style: normal; color: var(--accent); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.garanties { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 28px; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
.garanties li::before { content: "✓ "; color: var(--ok); font-weight: 700; }

/* --- Démo animée de l'application ----------------------------------------------------- */
.demo { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 14px; box-shadow: var(--ombre); }
.demo .fenetre { display: grid; grid-template-columns: 38% 1fr; background: var(--bg); border-radius: 14px; overflow: hidden; min-height: 380px; border: 1px solid var(--line); }
.demo .barre { display: flex; gap: 6px; padding: 4px 4px 12px; }
.demo .barre i { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-2); }
.liste { border-right: 1px solid var(--line); padding: 10px; display: grid; gap: 4px; align-content: start; }
.conv { display: flex; gap: 10px; align-items: center; padding: 8px; border-radius: 10px; font-size: 13px; }
.conv.active { background: var(--surface); }
.av { width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-size: 11px; font-weight: 700; flex: none; position: relative; }
.av.vert::after { content: ""; position: absolute; right: -1px; bottom: -1px; width: 9px; height: 9px; border-radius: 50%; background: var(--appel); box-shadow: 0 0 0 2px var(--bg); }
.conv small { display: block; color: var(--muted); font-size: 11px; }
.fil { padding: 14px; display: flex; flex-direction: column; gap: 8px; font-size: 13px; }
.bulle { max-width: 80%; padding: 8px 12px; border-radius: 16px; background: var(--surface-2); }
.bulle.moi { align-self: flex-end; background: var(--accent); color: var(--accent-ink); }
.cadenas { align-self: center; font-size: 11px; color: var(--text); background: color-mix(in srgb, var(--ok) 14%, transparent); padding: 3px 10px; border-radius: 99px; }
.ecrit { align-self: flex-start; display: inline-flex; gap: 4px; padding: 10px 12px; border-radius: 16px; background: var(--surface-2); }
.ecrit i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: points 1.2s infinite ease-in-out; }
.ecrit i:nth-child(2) { animation-delay: 0.15s; }
.ecrit i:nth-child(3) { animation-delay: 0.3s; }
@keyframes points { 0%, 60%, 100% { transform: translateY(0); opacity: 0.5; } 30% { transform: translateY(-4px); opacity: 1; } }
.demo .apparait { opacity: 0; transform: translateY(8px) scale(0.98); }
.demo.joue .apparait { animation: arrivee 420ms cubic-bezier(0.2, 0.8, 0.2, 1) forwards; }
.demo.joue .d1 { animation-delay: 0.9s; }
.demo.joue .d2 { animation-delay: 1.8s; }
.demo.joue .d3 { animation-delay: 2.7s; }
.demo.joue .d4 { animation-delay: 3.6s; }
.demo.joue .d5 { animation-delay: 4.5s; }
.demo.joue .d6 { animation-delay: 5.4s; }
.demo.joue .d7 { animation-delay: 6.3s; }
@keyframes arrivee { to { opacity: 1; transform: none; } }
.demo .chiffre { position: absolute; right: -10px; bottom: 34px; background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; font-size: 12px; box-shadow: var(--ombre); font-family: ui-monospace, Menlo, monospace; color: var(--muted); max-width: 230px; overflow-wrap: anywhere; }
.demo .chiffre b { display: block; font-family: var(--font); color: var(--text); font-size: 12px; margin-bottom: 2px; }
@media (max-width: 520px) { .demo .fenetre { grid-template-columns: 1fr; } .liste { display: none; } .demo .chiffre { position: static; margin-top: 12px; max-width: none; } }

/* --- Sections ------------------------------------------------------------------------ */
section { padding: 72px 0; scroll-margin-top: 64px; }
section.alt { background: var(--surface); }
h2 { font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 12px; }
.intro { color: var(--muted); max-width: 44em; margin: 0 0 36px; font-size: 18px; }
.grille { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; }
.carte { background: var(--bg); border: 1px solid var(--line); border-radius: 18px; padding: 24px; transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease; }
.carte:hover { transform: translateY(-3px); box-shadow: var(--ombre); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.carte h3 { font-size: 18px; margin: 12px 0 6px; }
.carte p { margin: 0; color: var(--muted); font-size: 15px; }
.carte a.suite { display: inline-block; margin-top: 12px; font-weight: 600; text-decoration: none; }
.carte a.suite::after { content: " →"; display: inline-block; transition: transform 160ms ease; }
.carte a.suite:hover::after { transform: translateX(4px); }
.pastille { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.pastille svg { width: 24px; height: 24px; }
.deux { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.deux.inverse > :first-child { order: 2; }
@media (max-width: 860px) { .deux { grid-template-columns: 1fr; } .deux.inverse > :first-child { order: 0; } }
.illustration { width: 100%; max-width: 520px; justify-self: center; }
.liste-coches { list-style: none; padding: 0; display: grid; gap: 10px; }
.liste-coches li { padding-left: 30px; position: relative; }
.liste-coches li::before { content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%; background: color-mix(in srgb, var(--ok) 16%, transparent); }
.liste-coches li::after { content: "✓"; position: absolute; left: 5px; top: 0; color: var(--ok); font-weight: 700; font-size: 14px; }
.chiffres { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; text-align: center; }
.chiffres strong { display: block; font-size: 34px; letter-spacing: -0.02em; color: var(--accent); }
.chiffres span { color: var(--muted); font-size: 14px; }

/* --- Captures de l'application ------------------------------------------------------- */
.onglets { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-bottom: 18px; }
.onglets button { border: 1px solid var(--line); background: var(--bg); color: var(--text); border-radius: 99px; padding: 8px 16px; font: 500 15px var(--font); cursor: pointer; transition: background 160ms ease, color 160ms ease; }
.onglets button[aria-selected="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.ecran { margin: 0; text-align: center; }
.ecran img { border-radius: 16px; border: 1px solid var(--line); box-shadow: var(--ombre); background: var(--surface); }
.ecran.mobile img { max-width: 340px; border-radius: 28px; }
.ecran figcaption { color: var(--muted); font-size: 14px; margin-top: 12px; }
.paire-mobile { display: flex; gap: 22px; justify-content: center; flex-wrap: wrap; }

/* --- Cas d'usage --------------------------------------------------------------------- */
.cas { display: grid; gap: 22px; }
.cas article { display: grid; grid-template-columns: 220px 1fr; gap: 28px; background: var(--bg); border: 1px solid var(--line); border-radius: 20px; padding: 28px; scroll-margin-top: 80px; }
@media (max-width: 760px) { .cas article { grid-template-columns: 1fr; } }
.cas .qui { display: flex; flex-direction: column; gap: 10px; }
.cas .qui strong { font-size: 18px; }
.cas .qui span { color: var(--muted); font-size: 14px; }
.cas h3 { margin: 0 0 8px; font-size: 20px; }
.cas p { margin: 0; color: var(--muted); }
.cas .avant-apres { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
@media (max-width: 560px) { .cas .avant-apres { grid-template-columns: 1fr; } }
.cas .avant-apres div { border-radius: 14px; padding: 14px 16px; font-size: 15px; }
.cas .avant { background: var(--surface); color: var(--muted); }
.cas .apres { background: color-mix(in srgb, var(--ok) 10%, transparent); }
.cas .avant-apres b { display: block; font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 4px; color: var(--text); }

/* --- Offres -------------------------------------------------------------------------- */
.offres { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.offre { display: flex; flex-direction: column; gap: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 20px; padding: 26px; transition: transform 200ms ease, box-shadow 200ms ease; }
.offre:hover { transform: translateY(-3px); box-shadow: var(--ombre); }
.offre.vedette { border: 2px solid var(--accent); }
.offre h3 { margin: 0; font-size: 22px; }
.offre .pour { color: var(--muted); margin: 0; }
.offre ul { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 15px; flex: 1; }
.prix { font-weight: 700; font-size: 18px; margin: 0; }
.prix small { display: block; font-weight: 400; color: var(--muted); font-size: 13px; }

/* --- FAQ ----------------------------------------------------------------------------- */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; transition: transform 200ms ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--muted); margin: 10px 0 0; }

/* --- Formulaire ---------------------------------------------------------------------- */
.formulaire { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; background: var(--bg); border: 1px solid var(--line); border-radius: 20px; padding: 28px; }
@media (max-width: 700px) { .formulaire { grid-template-columns: 1fr; padding: 20px; } }
.champ { display: flex; flex-direction: column; gap: 6px; }
.large { grid-column: 1 / -1; }
.champ label { font-size: 14px; font-weight: 600; }
.champ small { color: var(--muted); font-weight: 400; }
input, select, textarea { font: inherit; font-size: 16px; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 11px 13px; width: 100%; transition: border-color 160ms ease, box-shadow 160ms ease; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
textarea { resize: vertical; min-height: 120px; }
.case { display: flex; flex-direction: row; gap: 12px; align-items: flex-start; font-size: 14px; color: var(--muted); cursor: pointer; }
.case input { width: 20px; height: 20px; flex: none; margin: 1px 0 0; padding: 0; accent-color: var(--accent); }
.case a { text-decoration: underline; }
.piege { position: absolute; left: -9999px; }
.retour { grid-column: 1 / -1; margin: 0; padding: 12px 14px; border-radius: 12px; }
.retour.ok { background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--text); }
.retour.ko { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--text); }

/* --- Blog ---------------------------------------------------------------------------- */
.grille-articles { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
.carte-article a { display: flex; flex-direction: column; gap: 8px; height: 100%; color: var(--text); text-decoration: none; background: var(--bg); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; padding-bottom: 18px; transition: transform 200ms ease, box-shadow 200ms ease; }
.carte-article a:hover { transform: translateY(-3px); box-shadow: var(--ombre); }
.carte-article img { aspect-ratio: 1200 / 630; object-fit: cover; background: var(--surface); }
.carte-article .categorie, .carte-article h3, .carte-article p, .carte-article .meta { margin: 0 18px; }
.carte-article h3 { font-size: 19px; line-height: 1.3; }
.carte-article p { color: var(--muted); font-size: 15px; }
.categorie { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); }
.meta { color: var(--muted); font-size: 14px; }
.article { max-width: 760px; padding: 32px 0 24px; }
.article h1 { font-size: clamp(30px, 4vw, 44px); }
.article .couverture { border-radius: 18px; margin: 18px 0 28px; border: 1px solid var(--line); }
.prose { font-size: 18px; line-height: 1.75; }
.prose h2 { font-size: 26px; margin: 40px 0 10px; }
.prose h3 { font-size: 20px; margin: 28px 0 8px; }
.prose a { text-decoration: underline; }
.prose blockquote { margin: 24px 0; padding: 4px 20px; border-left: 4px solid var(--accent); color: var(--muted); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 18px 0; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: 10px 8px; text-align: left; vertical-align: top; }
.encart-cta { margin: 40px 0 0; padding: 28px; border-radius: 20px; background: var(--surface); border: 1px solid var(--line); }
.encart-cta h2 { font-size: 22px; }
.lies { padding-top: 24px; }

/* --- Pages de texte ------------------------------------------------------------------ */
.texte { max-width: 760px; padding: 24px 0 72px; }
.texte h2 { font-size: 22px; margin-top: 32px; }
.texte p, .texte li { color: var(--muted); }
.texte a { text-decoration: underline; }

/* --- Pied ---------------------------------------------------------------------------- */
.pied { border-top: 1px solid var(--line); padding: 48px 0 32px; color: var(--muted); font-size: 14px; background: var(--surface); }
.colonnes { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
@media (max-width: 760px) { .colonnes { grid-template-columns: 1fr 1fr; } .colonnes > :first-child { grid-column: 1 / -1; } }
.pied nav { display: flex; flex-direction: column; gap: 8px; }
.pied h2 { font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text); margin: 0 0 6px; }
.pied a { color: var(--muted); text-decoration: none; }
.pied a:hover { color: var(--accent); text-decoration: underline; }
.pied .logo { color: var(--text); margin-bottom: 10px; }
.copyright { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--line); }

/* --- Apparition au défilement (désactivée si le système réduit les animations) -------- */
.js .revele { opacity: 0; transform: translateY(18px); transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1); }
.js .revele.vu { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
  .js .revele, .demo .apparait { opacity: 1; transform: none; }
}

/* --- Illustrations (SVG intégrés, couleurs du thème) ---------------------------------- */
.il-fond { fill: var(--surface); }
.il-carte { fill: var(--bg); stroke: var(--line); stroke-width: 2; }
.il-trait { fill: none; stroke: var(--line); stroke-width: 3; stroke-linecap: round; }
.il-ligne { fill: var(--surface-2); }
.il-accent { fill: var(--accent); }
.il-accent-trait { fill: none; stroke: var(--accent); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.il-encre { fill: var(--accent-ink); }
.il-ok { fill: var(--ok); }
.il-ok-doux { fill: color-mix(in srgb, var(--ok) 18%, transparent); }
.il-accent-doux { fill: color-mix(in srgb, var(--accent) 14%, transparent); }
.il-muet { fill: var(--muted); }
.flotte { animation: flotte 6s ease-in-out infinite; transform-box: fill-box; }
.flotte.lent { animation-duration: 8s; animation-delay: -2s; }
@keyframes flotte { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.pulse { animation: pulse 2.4s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
@keyframes pulse { 0%, 100% { opacity: 0.35; transform: scale(1); } 50% { opacity: 0.8; transform: scale(1.06); } }
.il-cadenas { fill: none; stroke: var(--accent-ink); stroke-width: 4; }
.paire-mobile img { max-width: 300px; border-radius: 28px; }
.h3 { font-size: 20px; margin: 0 0 6px; }