:root { color-scheme:light; --landing-ink:#14213d; --landing-muted:#64748b; --landing-blue:#315fbd; --landing-paper:#fff; --landing-line:#dce2eb; --landing-bg:#f4f0e8; }
* { box-sizing:border-box; }
html { min-height:100%; background:var(--landing-bg); }
html.standalone-pending body { visibility:hidden; }
body { min-height:100vh; margin:0; color:var(--landing-ink); background:radial-gradient(circle at 85% 0,rgb(49 95 189 / 11%),transparent 34rem),var(--landing-bg); font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif; }
a { color:inherit; }
.landing-shell { width:min(1220px,100%); margin:0 auto; padding:clamp(18px,3vw,34px) clamp(16px,4vw,48px) 64px; }
.landing-header { display:flex; align-items:center; justify-content:space-between; gap:18px; }
.landing-brand { display:inline-flex; align-items:center; gap:11px; color:inherit; text-decoration:none; font-size:20px; font-weight:900; letter-spacing:-.02em; }
.landing-brand-mark { display:grid; place-items:center; width:42px; height:42px; border-radius:13px; background:var(--landing-blue); color:#fff; font-size:17px; box-shadow:0 8px 20px rgb(49 95 189 / 22%); }
.landing-actions { display:flex; align-items:center; gap:10px; }
.landing-class-link,.landing-course-link { display:inline-flex; align-items:center; min-height:42px; padding:7px 14px; border:1px solid #bdc8d9; border-radius:11px; background:rgb(255 255 255 / 72%); color:var(--landing-ink); text-decoration:none; font-size:13px; font-weight:850; }
.landing-class-link:hover,.landing-class-link:focus-visible,.landing-course-link:hover,.landing-course-link:focus-visible { border-color:var(--landing-blue); color:var(--landing-blue); outline:none; }
.landing-hero { display:grid; grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr); align-items:end; gap:clamp(30px,6vw,80px); padding:clamp(64px,10vw,118px) 0 clamp(52px,8vw,86px); }
.landing-kicker { margin:0 0 13px; color:var(--landing-blue); font-size:12px; font-weight:900; letter-spacing:.11em; text-transform:uppercase; }
.landing-hero h1 { max-width:820px; margin:0; font-family:Georgia,"Times New Roman",serif; font-size:clamp(43px,6.4vw,78px); font-weight:500; line-height:.98; letter-spacing:-.045em; }
.landing-intro { max-width:680px; margin:23px 0 0; color:var(--landing-muted); font-size:clamp(17px,2vw,21px); line-height:1.55; }
.landing-class-card { padding:24px; border:1px solid var(--landing-line); border-radius:20px; background:rgb(255 255 255 / 72%); box-shadow:0 12px 36px rgb(20 33 61 / 8%); }
.landing-class-card span { color:var(--landing-blue); font-size:11px; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }
.landing-class-card strong { display:block; margin:9px 0; font-size:21px; }
.landing-class-title-row { display:flex; align-items:center; gap:9px; }
.landing-class-card .landing-beta-badge { display:inline-flex; align-items:center; min-height:20px; padding:2px 7px; border:1px solid rgb(49 95 189 / 32%); border-radius:999px; background:#edf3ff; color:var(--landing-blue); font-size:10px; line-height:1; white-space:nowrap; }
.landing-class-card p { margin:0; color:var(--landing-muted); font-size:14px; line-height:1.5; }
.landing-class-card a { display:inline-flex; margin-top:18px; color:var(--landing-blue); font-size:13px; font-weight:900; text-decoration:none; }
.landing-class-card a:hover,.landing-class-card a:focus-visible { text-decoration:underline; outline:none; }
.landing-course { margin:clamp(34px,5vw,58px) 0 0; }
.landing-course-card { display:grid; grid-template-columns:auto minmax(0,1fr) auto; align-items:center; gap:20px; padding:20px 22px; border:1px solid var(--landing-line); border-radius:20px; background:linear-gradient(120deg,rgb(255 255 255 / 88%),rgb(233 241 255 / 88%)); box-shadow:0 10px 30px rgb(20 33 61 / 8%); color:inherit; text-decoration:none; transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease; }
.landing-course-card:hover,.landing-course-card:focus-visible { transform:translateY(-2px); border-color:var(--landing-blue); box-shadow:0 14px 34px rgb(20 33 61 / 12%); outline:none; }
.landing-course-icon { display:grid; place-items:center; width:70px; height:70px; border-radius:18px; background:#fff; box-shadow:0 7px 22px rgb(20 33 61 / 10%); }
.landing-course-icon img { width:54px; height:54px; object-fit:contain; }
.landing-course-copy { display:flex; min-width:0; flex-direction:column; }
.landing-course-copy small { margin-bottom:5px; color:var(--landing-blue); font-size:11px; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }
.landing-course-copy strong { font-size:22px; line-height:1.2; }
.landing-course-copy > span { margin-top:5px; color:var(--landing-muted); font-size:14px; line-height:1.45; }
.landing-course-open { color:var(--landing-blue); font-size:13px; font-weight:900; white-space:nowrap; }
.landing-course-open::after { content:" →"; }
.landing-external-apps { margin-top:clamp(52px,7vw,82px); }
.landing-external-apps .landing-tools-header { align-items:start; }
.landing-external-apps .landing-kicker { margin-bottom:8px; }
.landing-external-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; }
.landing-external-card { display:grid; grid-template-columns:58px minmax(0,1fr); align-items:start; gap:14px; min-width:0; padding:16px; border:1px solid var(--landing-line); border-radius:16px; background:rgb(255 255 255 / 82%); color:inherit; text-decoration:none; transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease; }
.landing-external-card:hover,.landing-external-card:focus-visible { transform:translateY(-2px); border-color:var(--landing-blue); box-shadow:0 9px 24px rgb(20 33 61 / 10%); outline:none; }
.landing-external-icon { position:relative; display:grid; place-items:center; width:58px; height:58px; overflow:hidden; border:1px solid #e0e6ee; border-radius:14px; background:#f4f7fb; color:var(--landing-blue); font-size:13px; font-weight:900; }
.landing-external-icon img { position:absolute; inset:7px; width:calc(100% - 14px); height:calc(100% - 14px); object-fit:contain; }
.landing-external-icon.has-image > span { display:none; }
.landing-external-copy { display:flex; min-width:0; flex-direction:column; }
.landing-external-copy strong { overflow-wrap:anywhere; font-size:16px; line-height:1.25; }
.landing-external-copy small { margin-top:5px; overflow-wrap:anywhere; color:var(--landing-muted); font-size:12px; line-height:1.45; }
.landing-external-open { margin-top:9px; color:var(--landing-blue); font-size:11px; font-weight:900; }
.landing-external-open::after { content:" ↗"; }
.landing-tools-header { display:flex; align-items:end; justify-content:space-between; gap:20px; margin-bottom:28px; padding-bottom:18px; border-bottom:1px solid #cfd6df; }
.landing-tools-header h2 { margin:0; font-family:Georgia,"Times New Roman",serif; font-size:clamp(30px,4vw,46px); font-weight:500; letter-spacing:-.025em; }
.landing-tools-header p { max-width:610px; margin:8px 0 0; color:var(--landing-muted); line-height:1.5; }
.landing-count { flex:0 0 auto; color:var(--landing-blue); font-size:13px; font-weight:850; }
.landing-filters { display:flex; align-items:flex-end; gap:18px; margin:0 0 22px; }
.landing-filter { display:flex; align-items:center; gap:12px; }
.landing-filter label { flex:0 0 auto; color:var(--landing-muted); font-size:13px; font-weight:800; }
.landing-filter select { width:min(100%,430px); min-height:44px; padding:8px 38px 8px 13px; border:1px solid #bdc8d9; border-radius:11px; background:var(--landing-paper); color:var(--landing-ink); font:inherit; font-size:14px; font-weight:750; }
.landing-filter select:focus-visible { border-color:var(--landing-blue); outline:3px solid rgb(49 95 189 / 16%); }
.landing-type-filter { display:flex; flex:1; align-items:center; gap:7px; min-width:0; margin:0; padding:0; border:0; }
.landing-type-filter legend { float:left; margin-right:5px; color:var(--landing-muted); font-size:13px; font-weight:800; }
.landing-type-choice { position:relative; display:inline-flex; cursor:pointer; }
.landing-type-choice input { position:absolute; width:1px; height:1px; opacity:0; }
.landing-type-choice span { display:inline-flex; align-items:center; min-height:42px; padding:7px 11px; border:1px solid #bdc8d9; border-radius:11px; background:rgb(255 255 255 / 72%); color:var(--landing-ink); font-size:12px; font-weight:850; white-space:nowrap; transition:background .16s ease,border-color .16s ease,color .16s ease; }
.landing-type-choice input:checked+span { border-color:var(--landing-blue); background:var(--landing-blue); color:#fff; }
.landing-type-choice input:focus-visible+span { outline:3px solid rgb(49 95 189 / 18%); outline-offset:2px; }
.landing-catalog { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; }
.landing-module-card { display:flex; flex-direction:column; min-width:0; overflow:hidden; border:1px solid var(--landing-line); border-radius:18px; background:var(--landing-paper); box-shadow:0 6px 22px rgb(20 33 61 / 6%); text-decoration:none; transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease; }
.landing-module-card:hover,.landing-module-card:focus-visible { transform:translateY(-3px); border-color:var(--landing-blue); box-shadow:0 12px 30px rgb(20 33 61 / 12%); outline:none; }
.landing-module-preview { position:relative; display:grid; place-items:center; width:100%; aspect-ratio:8/5; overflow:hidden; border-bottom:1px solid var(--landing-line); background:linear-gradient(145deg,#e9eef7,#f7f9fc); color:#8290a7; }
.landing-module-preview::before { content:""; position:absolute; inset:8% 6%; border:1px dashed #bdc8d9; border-radius:12px; }
.landing-module-preview span { z-index:1; max-width:75%; text-align:center; font-size:13px; font-weight:850; }
.landing-module-preview img { position:absolute; inset:8% 6%; width:88%; height:84%; border-radius:12px; object-fit:fill; object-position:center; box-shadow:0 5px 14px rgb(20 33 61 / 14%); }
.landing-module-preview[data-module-id="chronophotographie"] img { inset:0; width:100%; height:100%; border-radius:0; box-shadow:none; }
.landing-module-preview.has-image::before,.landing-module-preview.has-image span { display:none; }
.landing-module-body { display:flex; flex:1; flex-direction:column; min-height:184px; padding:20px; }
.landing-module-types { display:flex; flex-wrap:wrap; gap:5px; margin-top:10px; }
.landing-module-type { display:inline-flex; align-items:center; flex:0 0 auto; padding:4px 7px; border-radius:999px; background:#eef2f8; color:#53627a; font-size:10px; font-weight:900; line-height:1.2; }
.landing-module-card strong { overflow-wrap:anywhere; font-size:21px; line-height:1.15; }
.landing-module-card small { flex:1; margin-top:9px; overflow-wrap:anywhere; color:var(--landing-muted); font-size:14px; line-height:1.5; }
.landing-module-open { margin-top:20px; color:var(--landing-blue); font-size:13px; font-weight:900; }
.landing-module-open::after { content:" →"; }
.landing-footer { margin-top:58px; padding-top:20px; border-top:1px solid #cfd6df; color:var(--landing-muted); font-size:12px; line-height:1.5; }
@media (max-width:1080px) { .landing-filters { align-items:stretch; flex-direction:column; }.landing-type-filter { flex-wrap:wrap; }.landing-type-filter legend { width:100%; margin-bottom:3px; } }
@media (max-width:900px) { .landing-hero { grid-template-columns:1fr; align-items:start; }.landing-class-card { max-width:620px; }.landing-catalog,.landing-external-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (max-width:620px) { .landing-header { align-items:flex-start; }.landing-actions { flex-wrap:wrap; justify-content:flex-end; }.landing-class-link { order:2; }.landing-hero { padding-top:52px; }.landing-course-card { grid-template-columns:auto minmax(0,1fr); padding:17px; }.landing-course-icon { width:58px; height:58px; border-radius:15px; }.landing-course-icon img { width:46px; height:46px; }.landing-course-open { grid-column:2; }.landing-tools-header { align-items:flex-start; flex-direction:column; }.landing-filter { align-items:stretch; flex-direction:column; }.landing-filter select { width:100%; }.landing-type-choice span { min-height:40px; padding:6px 9px; }.landing-catalog,.landing-external-grid { grid-template-columns:1fr; }.landing-module-card { min-height:0; }.landing-shell { padding-bottom:38px; } }
@media (prefers-reduced-motion:reduce) { .landing-module-card,.landing-external-card { transition:none; } }