.hero { padding: 4.5rem 0 3rem; display: grid; grid-template-columns: 1.1fr 1fr; gap: 2.5rem; align-items: center; }
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; padding-top: 2.5rem; } }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 700; color: var(--primary-2); background: rgba(99,102,241,.12); border: 1px solid rgba(99,102,241,.3); padding: .3rem .75rem; border-radius: 999px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.1; margin: 1rem 0; font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--primary-2); }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 34rem; }
.cta { display: flex; gap: .75rem; flex-wrap: wrap; margin: 1.5rem 0 .75rem; }
/* Démo en boucle (vidéo muette, sans son ni contrôles) : la vraie appli, avec des copies fictives. */
.demo { margin: 0; display: grid; gap: .5rem; }
.demo video { width: 100%; max-width: 520px; margin: 0 auto; aspect-ratio: 1080 / 1104; border-radius: 16px; border: 1px solid var(--line); background: #f3efe4; box-shadow: 0 30px 80px -30px rgba(99,102,241,.45); display: block; }
.demo figcaption { font-size: .78rem; color: var(--faint); text-align: center; }
section.block { padding: 3.5rem 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: .5rem; }
.sub { color: var(--muted); margin: 0 0 2rem; max-width: 40rem; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 800px) { .grid3 { grid-template-columns: 1fr; } }
.feature h3 { font-size: 1rem; margin: .5rem 0 .3rem; }
.feature p { margin: 0; color: var(--muted); font-size: .92rem; }
.feature .n { font-size: 1.5rem; }
.price { display: grid; gap: .6rem; align-content: start; }
.price.best { border-color: var(--primary); box-shadow: 0 20px 50px -25px rgba(99,102,241,.7); }
.price .amount { font-size: 2.2rem; font-weight: 800; }
.price .amount small { font-size: .9rem; color: var(--muted); font-weight: 500; }
.price ul { margin: 0; padding-left: 1.1rem; color: var(--muted); font-size: .9rem; }
.faq details { border: 1px solid var(--line); background: var(--panel); border-radius: 14px; padding: .9rem 1.1rem; margin-bottom: .6rem; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--muted); margin: .6rem 0 0; }
footer { border-top: 1px solid var(--line); padding: 2rem 0 3rem; color: var(--faint); font-size: .85rem; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.legal { max-width: 760px; padding: 2.5rem 16px 4rem; }
.legal h1 { font-size: 1.8rem; margin-bottom: 1rem; }
.legal h2 { font-size: 1.15rem; margin: 1.8rem 0 .5rem; }
.legal p, .legal li { color: var(--muted); }
.todo { background: rgba(245,158,11,.1); border: 1px solid rgba(245,158,11,.4); color: #fcd34d; border-radius: 10px; padding: .1rem .4rem; }

/* Logo en grand dans l'accueil */
.hero-logo { width: 132px; height: 132px; display: block; margin-bottom: 1rem; filter: drop-shadow(0 18px 40px rgba(249, 115, 22, .45)); }
@media (max-width: 900px) { .hero-logo { width: 104px; height: 104px; } }
.feature .n svg { width: 28px; height: 28px; fill: none; stroke: var(--primary-2); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* Démonstration de la correction de la langue */
.lang-demo { display: grid; grid-template-columns: 1.1fr 1fr; gap: 1.25rem; align-items: start; }
@media (max-width: 900px) { .lang-demo { grid-template-columns: 1fr; } }
.paper { background: #fbfaf6; color: #1f2937; border-radius: 14px; padding: 1.4rem 1.5rem; box-shadow: 0 30px 70px -35px rgba(0,0,0,.8); font: 1.15rem/2.1 "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;
  background-image: repeating-linear-gradient(transparent 0 calc(2.1em - 1px), rgba(59,130,246,.18) calc(2.1em - 1px) 2.1em); }
.paper .nm { font-size: .9rem; color: #475569; }
.mark { position: relative; border: 2px solid var(--dot); background: color-mix(in srgb, var(--dot) 22%, transparent); border-radius: 4px; padding: 0 .1rem; }
.mark sup { position: absolute; top: -.85rem; left: -2px; font: 700 .62rem/1 Inter, sans-serif; color: #fff; background: var(--dot); padding: .1rem .25rem; border-radius: 4px; }
.fixes { display: grid; gap: .55rem; }
.fix { border: 1px solid var(--line); border-left: 4px solid var(--dot); border-radius: 10px; padding: .55rem .75rem; background: var(--panel); font-size: .88rem; }
.fix s { color: #fda4af; } .fix b { color: #6ee7b7; } .fix small { display: block; color: var(--muted); }
:root { --c-orth: #f43f5e; --c-acc: #f59e0b; --c-conj: #a855f7; --c-ponc: #38bdf8; }
.c-orth { --dot: var(--c-orth); } .c-acc { --dot: var(--c-acc); } .c-conj { --dot: var(--c-conj); } .c-ponc { --dot: var(--c-ponc); }
.points { margin: 1rem 0 0; padding: 0; list-style: none; display: grid; gap: .5rem; color: var(--muted); }
.points li::before { content: "→ "; color: var(--primary-2); }

/* Guide d'utilisation : sommaire à gauche (collant), sections à droite ; une seule colonne sur téléphone. */
.guide { padding: 2.5rem 16px 4rem; }
.guide h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); margin-bottom: .5rem; }
.guide #guide-search { max-width: 34rem; margin: 0 0 1.5rem; }
.guide-layout { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: 2rem; align-items: start; }
.guide-toc { position: sticky; top: 84px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 1rem 1.1rem; font-size: .9rem; }
.guide-toc ol { margin: .6rem 0 0; padding-left: 1.2rem; display: grid; gap: .35rem; }
.guide-toc a { color: var(--muted); text-decoration: none; }
.guide-toc a:hover { color: var(--text); }
.guide-sec { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 1.2rem 1.4rem; margin-bottom: 1rem; scroll-margin-top: 84px; }
.guide-sec h2 { font-size: 1.15rem; margin: 0 0 .6rem; }
.guide-sec li, .guide-sec p { color: var(--muted); line-height: 1.6; }
.guide-sec li b, .guide-sec p b { color: var(--text); }
.guide-sec ul, .guide-sec ol { padding-left: 1.2rem; margin: .4rem 0; }
.guide-sec li { margin: .3rem 0; }
.guide .callout { border-left: 3px solid var(--amber); background: rgba(245,158,11,.06); border-radius: 10px; padding: .3rem 1rem; }
.guide-cta { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; background: var(--panel-2); border: 1px solid var(--primary); border-radius: 16px; padding: 1.1rem 1.4rem; margin-top: 1.5rem; }
.guide-cta .sub { margin: 0; }
@media (max-width: 820px) {
  .guide-layout { grid-template-columns: 1fr; gap: 1rem; }
  .guide-toc { position: static; }
  .guide-sec { padding: 1rem 1.1rem; }
}

/* Bloc « Fait par un prof, pour des profs » */
.creator { padding: 0 0 2.5rem; }
.creator-card { display: flex; gap: 1rem; align-items: flex-start; max-width: 52rem; background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--primary); border-radius: 16px; padding: 1.1rem 1.3rem; }
.creator-card b { font-size: 1.05rem; }
.creator-card p { margin: .35rem 0 0; color: var(--muted); }
.creator-mark { font-size: 1.6rem; line-height: 1; }

/* Proposez une fonctionnalité */
.idea-form { display: grid; gap: .7rem; max-width: 40rem; }
.idea-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.idea-row { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
.idea-form .ok { color: var(--green); }
.idea-form .err { color: var(--red); }

/* Téléphone : en-tête sur une ligne (logo, langue, essai) et pas de second logo au-dessus du titre. */
@media (max-width: 640px) {
  .topbar .nav-x { display: none; }
  .hero-logo { display: none; }
}