/* =============================================================================
   Espace FLE — fle.datagrade.fr (apprenants de français)
   Papier crème, encre bleu nuit, accent bordeaux, titres en Fraunces.
   Clair ou sombre selon l'appareil. Boutons : texte foncé sur fond clair et
   inversement, jamais de texte blanc sur un fond pâle.
   ============================================================================= */

:root {
    --paper: #FBF7F1;
    --paper-2: #F4EDE2;
    --card: #FFFFFF;
    --ink: #1D2238;
    --ink-soft: #464B63;
    --muted: #767A8E;
    --line: #E8E0D2;
    --line-soft: #F1EBE1;
    --accent: #A3294A;
    --accent-hover: #8A2140;
    --accent-ink: #FFFFFF;
    --accent-soft: #F8E7EC;
    --gold: #B98A2E;
    --gold-soft: #FBF1DC;
    --ok: #1C7148;
    --ok-bg: #E4F3EA;
    --bad: #B0263A;
    --bad-bg: #FBE8EB;
    --warn: #8F5B00;
    --warn-bg: #FDF0D8;
    --shadow: 0 1px 2px rgba(29, 34, 56, .05), 0 8px 24px -12px rgba(29, 34, 56, .18);
    --radius: 18px;
    --serif: 'Fraunces', 'Noto Serif SC', Georgia, serif;
    --sans: 'Inter', 'Noto Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
    color-scheme: light;
}
@media (prefers-color-scheme: dark) {
    :root {
        --paper: #14161C;
        --paper-2: #1A1D25;
        --card: #1C1F28;
        --ink: #ECEAF2;
        --ink-soft: #C6C3D0;
        --muted: #8F8C9D;
        --line: #2E313C;
        --line-soft: #242731;
        --accent: #EC7E9A;
        --accent-hover: #F296AD;
        --accent-ink: #14161C;
        --accent-soft: rgba(236, 126, 154, .13);
        --gold: #E2B860;
        --gold-soft: rgba(226, 184, 96, .12);
        --ok: #79DDB0;
        --ok-bg: rgba(52, 211, 153, .12);
        --bad: #F9A3AF;
        --bad-bg: rgba(248, 113, 113, .13);
        --warn: #F7C977;
        --warn-bg: rgba(251, 191, 36, .12);
        --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -14px rgba(0, 0, 0, .6);
        color-scheme: dark;
    }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body.fle {
    margin: 0; min-height: 100vh; display: flex; flex-direction: column;
    background: var(--paper); color: var(--ink);
    font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased;
}
body.fle--zh { --serif: 'Noto Sans SC', 'Fraunces', serif; }
a { color: inherit; }
img { max-width: 100%; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; margin: 0 0 .4em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* ─── Barre du haut ─────────────────────────────────────────────────────── */
.fle-top {
    position: sticky; top: 0; z-index: 10;
    display: flex; align-items: center; gap: 24px;
    padding: 14px clamp(16px, 4vw, 48px);
    background: color-mix(in srgb, var(--paper) 88%, transparent);
    backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
    border-bottom: 1px solid var(--line-soft);
}
.fle-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.fle-brand__mark {
    width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
    background: var(--ink); color: var(--paper); font: 700 22px/1 var(--serif);
    box-shadow: inset -5px 0 0 var(--accent);
}
.fle-brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.fle-brand__text strong { font: 600 19px var(--serif); }
.fle-brand__text small { font-size: 12px; color: var(--muted); letter-spacing: .02em; }
.fle-nav { display: flex; gap: 4px; }
.fle-nav a { padding: 8px 14px; border-radius: 999px; text-decoration: none; color: var(--ink-soft); font-weight: 500; font-size: 15px; }
.fle-nav a:hover { background: var(--line-soft); color: var(--ink); }
.fle-nav a.is-active { background: var(--ink); color: var(--paper); }
.fle-top__end { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.fle-lang { display: inline-flex; padding: 3px; gap: 2px; border: 1px solid var(--line); border-radius: 999px; background: var(--card); }
.fle-lang a { padding: 5px 11px; border-radius: 999px; font-size: 13px; font-weight: 600; text-decoration: none; color: var(--muted); }
.fle-lang a:hover { color: var(--ink); }
.fle-lang a.is-active { background: var(--ink); color: var(--paper); }
.fle-lang--big a { padding: 9px 18px; font-size: 15px; }
.fle-logout { margin: 0; }
.fle-logout button {
    width: 36px; height: 36px; display: grid; place-items: center; cursor: pointer;
    border: 1px solid var(--line); border-radius: 50%; background: var(--card); color: var(--ink-soft);
}
.fle-logout button:hover { color: var(--accent); border-color: var(--accent); }

.fle-main { flex: 1; width: 100%; max-width: 1120px; margin: 0 auto; padding: clamp(24px, 4vw, 48px) clamp(16px, 4vw, 40px) 64px; }
.fle--narrow .fle-main { max-width: 620px; }
.fle--work .fle-main { max-width: 860px; }
.fle-foot {
    display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
    padding: 20px clamp(16px, 4vw, 48px); font-size: 13px; color: var(--muted); border-top: 1px solid var(--line-soft);
}

/* ─── Éléments communs ──────────────────────────────────────────────────── */
.fle-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 3vw, 32px); box-shadow: var(--shadow); margin-bottom: 20px; }
.fle-card h2 { font-size: 22px; }
.fle-muted { color: var(--muted); }
.fle-small { font-size: 14px; }
.fle-eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.fle-link { color: var(--accent); font-weight: 600; text-decoration: none; }
.fle-link:hover { text-decoration: underline; }
.fle-back { margin-bottom: 18px; }
.fle-back a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 500; }
.fle-back a:hover { color: var(--accent); }
.fle-empty { padding: 22px; border: 1px dashed var(--line); border-radius: 14px; color: var(--muted); text-align: center; background: var(--paper-2); }

.fle-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 22px; border-radius: 999px; border: 1px solid transparent; cursor: pointer;
    font: 600 15px var(--sans); text-decoration: none; transition: background .15s, transform .15s, box-shadow .15s;
}
.fle-btn--primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--accent) 70%, transparent); }
.fle-btn--primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.fle-btn--primary:disabled { opacity: .55; cursor: progress; transform: none; }
.fle-btn--block { width: 100%; }
.fle-btn--small { padding: 7px 14px; font-size: 13px; background: var(--ink); color: var(--paper); }
.fle-btn--ghost { background: transparent; color: var(--ink-soft); border-color: var(--line); }

.fle-form { display: grid; gap: 14px; margin-bottom: 14px; }
.fle-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: var(--ink-soft); }
.fle-form input {
    width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line);
    background: var(--paper); color: var(--ink); font: 16px var(--sans);
}
.fle-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.fle-alert { padding: 12px 16px; border-radius: 12px; font-size: 15px; font-weight: 500; }
.fle-alert--error { background: var(--bad-bg); color: var(--bad); }
.fle-alert--ok { background: var(--ok-bg); color: var(--ok); }

.fle-level {
    display: inline-grid; place-items: center; min-width: 64px; height: 64px; padding: 0 10px; border-radius: 20px;
    background: var(--gold-soft); color: var(--gold); font: 700 26px var(--serif); border: 1px solid color-mix(in srgb, var(--gold) 35%, transparent);
}
.fle-level--small { min-width: 0; height: auto; padding: 3px 12px; font-size: 14px; border-radius: 999px; margin-bottom: 10px; }
.fle-tag { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--line-soft); color: var(--ink-soft); }
.fle-tag--late { background: var(--bad-bg); color: var(--bad); }
.fle-tag--ok { background: var(--ok-bg); color: var(--ok); }
.fle-score { font-weight: 700; color: var(--ink); }
.fle-count { display: inline-grid; place-items: center; min-width: 26px; height: 26px; padding: 0 8px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font: 700 13px var(--sans); vertical-align: middle; }

/* ─── Vitrine ───────────────────────────────────────────────────────────── */
.fle--landing .fle-main { max-width: 1200px; }
.fle-hero {
    position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
    gap: clamp(28px, 5vw, 72px); align-items: center; padding: clamp(12px, 3vw, 40px) 0 clamp(32px, 5vw, 64px);
}
.fle-hero__words { position: absolute; inset: -20px 0 0; pointer-events: none; z-index: 0; }
.fle-hero__words span {
    position: absolute; left: var(--x); top: var(--y); transform: rotate(var(--r));
    font: italic 500 clamp(18px, 2.2vw, 28px) var(--serif); color: var(--line);
    white-space: nowrap; user-select: none;
}
.fle-hero__copy, .fle-login { position: relative; z-index: 1; }
.fle-hero__title { font-size: clamp(40px, 6vw, 72px); font-weight: 600; line-height: 1.02; letter-spacing: -0.025em; margin-bottom: 22px; }
.fle-hero__lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--ink-soft); max-width: 34em; margin-bottom: 32px; }
.fle-features { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; max-width: 36em; }
.fle-features li { display: flex; gap: 16px; align-items: flex-start; }
.fle-features__ico {
    flex: none; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px;
    background: var(--accent-soft); color: var(--accent); font-size: 18px;
}
.fle-features strong { display: block; font-size: 16px; margin-bottom: 2px; }
.fle-features p { margin: 0; color: var(--muted); font-size: 15px; }
.fle-login { padding: clamp(24px, 3vw, 36px); border-radius: 24px; }
.fle-login h2 { font-size: 28px; margin-bottom: 18px; }
.fle-quote { text-align: center; padding: clamp(28px, 5vw, 56px) 0 8px; border-top: 1px solid var(--line-soft); }
.fle-quote blockquote { margin: 0 auto; max-width: 30em; font: italic 500 clamp(20px, 2.4vw, 28px)/1.4 var(--serif); color: var(--ink-soft); }
.fle-quote cite { display: block; margin-top: 12px; font: 600 13px var(--sans); font-style: normal; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }

/* ─── Espace de l'apprenant ─────────────────────────────────────────────── */
.fle-welcome { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; }
.fle-welcome h1 { font-size: clamp(30px, 4vw, 44px); margin-bottom: 4px; }
.fle-welcome p { margin: 0; }
.fle-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 32px; }
.fle-stats div { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 20px; }
.fle-stats strong { display: block; font: 600 28px var(--serif); }
.fle-stats span { font-size: 13px; color: var(--muted); }
.fle-cols { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 40px); align-items: start; }
.fle-block h2 { font-size: 24px; display: flex; align-items: center; gap: 10px; }
.fle-sub { font: 600 13px var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 28px 0 12px; }
.fle-sub--month { margin-top: 30px; }
.fle-hw { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.fle-hw__item a {
    display: grid; grid-template-columns: 1fr auto; grid-template-areas: "title btn" "meta btn"; gap: 2px 14px; align-items: center;
    padding: 16px 18px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); text-decoration: none;
    border-left: 4px solid var(--accent); transition: transform .15s, box-shadow .15s;
}
.fle-hw__item a:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.fle-hw__item.is-late a { border-left-color: var(--bad); }
.fle-hw--done .fle-hw__item a { border-left-color: var(--line); }
.fle-hw__title { grid-area: title; font-weight: 600; }
.fle-hw__meta { grid-area: meta; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.fle-hw__item .fle-btn { grid-area: btn; }
.fle-lessons { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.fle-lessons a { display: flex; align-items: center; gap: 14px; padding: 12px 16px; border-radius: 14px; text-decoration: none; background: var(--card); border: 1px solid var(--line); }
.fle-lessons a:hover { border-color: var(--accent); }
.fle-lessons a.is-empty { opacity: .65; }
.fle-lessons__date { flex: none; min-width: 64px; padding: 4px 8px; border-radius: 10px; background: var(--gold-soft); color: var(--gold); font-size: 13px; font-weight: 700; text-align: center; }
.fle-lessons__title { font-weight: 500; }

/* ─── Devoir ────────────────────────────────────────────────────────────── */
.fle-work__head { margin-bottom: 22px; }
.fle-work__head h1 { font-size: clamp(28px, 4vw, 40px); }
.fle-work__instr { font-size: 17px; color: var(--ink-soft); }
.fle-note { margin: 0 0 22px; padding: 16px 20px; border-radius: 16px; background: var(--gold-soft); border: 1px solid color-mix(in srgb, var(--gold) 30%, transparent); }
.fle-note strong { display: block; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--gold); margin-bottom: 4px; }
.fle-note p { margin: 0; }
.fle-note--teacher { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.fle-note--teacher strong { color: var(--accent); }
.fle-result { display: flex; align-items: center; gap: 18px; margin-bottom: 22px; padding: 18px 22px; border-radius: 18px; background: var(--card); border: 1px solid var(--line); }
.fle-result__ring {
    flex: none; width: 78px; height: 78px; border-radius: 50%; display: grid; place-items: center;
    background: conic-gradient(var(--accent) calc(var(--pct) * 1%), var(--line-soft) 0);
}
.fle-result__ring span { width: 62px; height: 62px; border-radius: 50%; display: grid; place-items: center; background: var(--card); font-weight: 700; font-size: 15px; }
.fle-result p { margin: 4px 0 0; }

.fx { display: grid; gap: 14px; }
.fx-doc { padding: 22px 26px; border-radius: 18px; background: var(--card); border: 1px solid var(--line); font-size: 17px; line-height: 1.7; }
.fx-doc__tag { font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.fx-doc h3, .fx-doc h4, .fx-doc h5 { font-family: var(--serif); margin: .6em 0 .3em; }
.fx-doc hr { border: 0; border-top: 1px solid var(--line); margin: 16px 0; }
.fx-item { display: flex; gap: 14px; padding: 16px 18px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); }
.fx-item__num { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--line-soft); color: var(--muted); font-size: 13px; font-weight: 700; margin-top: 2px; }
.fx-item__body { flex: 1; min-width: 0; }
.fx-line { margin: 0; font-size: 17px; line-height: 2.1; }
.fx-line--q { line-height: 1.6; margin-bottom: 10px; }
.fx-input, .fx-select {
    font: 500 16px var(--sans); color: var(--ink); background: var(--paper);
    border: 0; border-bottom: 2px solid var(--accent); border-radius: 6px 6px 0 0; padding: 2px 8px; margin: 0 2px;
    max-width: 100%;
}
.fx-select { border: 1px solid var(--line); border-bottom: 2px solid var(--accent); padding: 4px 6px; cursor: pointer; }
.fx-input:focus, .fx-select:focus, .fx-text:focus { outline: none; background: var(--accent-soft); }
.fx-text {
    width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); resize: vertical;
    background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans);
}
.fx-badge { display: inline-block; padding: 1px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 12px; font-weight: 700; vertical-align: 2px; }
.fx-tf { display: flex; gap: 10px; flex-wrap: wrap; }
.fx-tf__opt { position: relative; }
.fx-tf__opt input { position: absolute; opacity: 0; }
.fx-tf__opt span, span.fx-tf__opt {
    display: inline-block; padding: 8px 22px; border-radius: 999px; border: 1px solid var(--line);
    background: var(--paper); font-weight: 600; cursor: pointer; color: var(--ink-soft);
}
.fx-tf__opt input:checked + span { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.fx-tf__opt input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
span.fx-tf__opt { cursor: default; }
span.fx-tf__opt.is-right { background: var(--ok-bg); color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
span.fx-tf__opt.is-wrong { background: var(--bad-bg); color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, transparent); text-decoration: line-through; }
span.fx-tf__opt.is-picked { box-shadow: inset 0 0 0 2px currentColor; }
.fx-submit { position: sticky; bottom: 16px; display: flex; justify-content: center; padding-top: 8px; }
.fx-submit .fle-btn { padding: 14px 32px; font-size: 16px; box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .35); }

/* Copie corrigée */
.fx-hole { display: inline-block; padding: 0 8px; border-radius: 6px; font-weight: 600; margin: 0 2px; }
.fx-hole--ok { background: var(--ok-bg); color: var(--ok); }
.fx-hole--accent { background: var(--warn-bg); color: var(--warn); }
.fx-hole--wrong, .fx-hole--empty { background: var(--bad-bg); color: var(--bad); text-decoration: line-through; }
.fx-hole--empty { text-decoration: none; }
.fx-fix { display: inline-block; margin: 0 4px 0 2px; padding: 0 8px; border-radius: 6px; border: 1px dashed var(--ok); color: var(--ok); font-weight: 600; font-size: 15px; }
.fx-fix--soft { border-color: var(--warn); color: var(--warn); }
.fx-answer { padding: 12px 14px; border-radius: 12px; background: var(--paper-2); border: 1px solid var(--line); white-space: normal; }
.fx-answer--ok, .fx-answer--accent { background: var(--ok-bg); border-color: transparent; color: var(--ok); }
.fx-answer--wrong, .fx-answer--empty { background: var(--bad-bg); border-color: transparent; color: var(--bad); }
.fx-expected { margin-top: 8px; font-size: 15px; color: var(--ok); }
.fx-ai { margin-top: 12px; padding: 14px 16px; border-radius: 12px; background: var(--accent-soft); border-left: 3px solid var(--accent); }
.fx-ai__tag { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.fx-ai p { margin: 0 0 8px; }
.fx-ai p:last-child { margin: 0; }
.fx-ai__fix span { font-weight: 700; }

/* Leçons */
.fle-prose { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 4vw, 40px); font-size: 17px; line-height: 1.75; }
.fle-prose h3, .fle-prose h4, .fle-prose h5 { font-family: var(--serif); margin: 1.2em 0 .4em; }
.fle-prose hr { border: 0; border-top: 1px solid var(--line); margin: 24px 0; }
.fle-lesson-frame { width: 100%; min-height: 560px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.fle-access h1 { font-size: 32px; }

/* ─── Téléphone ─────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .fle-hero { grid-template-columns: 1fr; }
    .fle-hero__words { display: none; }
    .fle-cols { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .fle-top { gap: 10px; flex-wrap: wrap; padding-bottom: 10px; }
    .fle-brand__text small { display: none; }
    .fle-nav { order: 3; width: 100%; overflow-x: auto; }
    .fle-nav a { padding: 6px 12px; font-size: 14px; }
    .fle-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
    .fle-stats div { padding: 12px; }
    .fle-stats strong { font-size: 22px; }
    .fle-hw__item a { grid-template-columns: 1fr; grid-template-areas: "title" "meta" "btn"; }
    .fle-hw__item .fle-btn { justify-self: start; margin-top: 8px; }
    .fx-item { padding: 14px; gap: 10px; }
    .fx-doc { padding: 18px; }
    .fle-level { min-width: 52px; height: 52px; font-size: 22px; }
}