/* Cleverlearn — Bibliothèque de parcours sur étagères */
:root {
    --mesh-gradient:
        radial-gradient(at 0% 0%, hsla(253,16%,93%,1) 0, transparent 50%),
        radial-gradient(at 50% 0%, hsla(225,100%,94%,1) 0, transparent 50%),
        radial-gradient(at 100% 0%, hsla(339,100%,96%,1) 0, transparent 50%);
    --orb-1: #e0c3fc;
    --orb-2: #8ec5fc;
    --background-color: #F3F4F6;
    --primary-hue1: 250;
    --primary-hue2: 85%;
    --primary-hue3: 65%;
    --primary-color: hsl(var(--primary-hue1), var(--primary-hue2), var(--primary-hue3));
    --primary-light: hsla(var(--primary-hue1), var(--primary-hue2), var(--primary-hue3), 0.3);
    --primary-very-light: hsla(var(--primary-hue1), var(--primary-hue2), var(--primary-hue3), 0.1);
    --accent-color: hsl(220, 58%, 58%);
    --accent-light: hsla(220, 58%, 58%, 0.3);
    --accent-very-light: hsla(220, 58%, 58%, 0.1);
    --accent-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    --secondary-color: #fff;
    --secondary-attenuated: hsla(0,0%,100%,0.8);
    --secondary-mid: hsla(0,0%,100%,0.5);
    --secondary-light: hsla(0,0%,100%,0.3);
    --neutral-very-light: hsla(0,0%,0%,0.1);
    --success-color: hsl(142,70%,45%);
    --text-main: #1E1E2E;
    --text-muted: #6B7280;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --glass-panel-shadow: 0 20px 50px -12px var(--neutral-very-light), inset 0 0 0 1px var(--secondary-light);
    --transition: cubic-bezier(0.34, 1.56, 0.64, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Lexend', sans-serif;
    background-color: var(--background-color);
    background-image: var(--mesh-gradient);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
p { color: var(--text-muted); }
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.02em; }

.bg-orb { position: fixed; border-radius: 50%; filter: blur(80px); z-index: -1; opacity: .4; animation: floatOrb 20s infinite ease-in-out alternate; pointer-events: none; }
.orb-1 { width: 600px; height: 600px; background: var(--orb-1); top: -150px; left: -150px; }
.orb-2 { width: 500px; height: 500px; background: var(--orb-2); bottom: -100px; right: -100px; animation-delay: -5s; }
.orb-3 { width: 400px; height: 400px; background: var(--orb-1); top: 50%; left: 60%; animation-delay: -10s; opacity: .25; }
@keyframes floatOrb { from { transform: translate(0,0) scale(1); } to { transform: translate(50px,50px) scale(1.1); } }

.page-wrapper { max-width: 1240px; margin: 0 auto; padding: 1.5rem; }
.glass-panel { background: var(--secondary-light); backdrop-filter: blur(40px) saturate(150%); -webkit-backdrop-filter: blur(40px) saturate(150%); border: 1px solid var(--secondary-attenuated); box-shadow: var(--glass-panel-shadow); border-radius: var(--radius-lg); }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; background: var(--secondary-mid); backdrop-filter: blur(30px) saturate(140%); border: 1px solid var(--secondary-attenuated); box-shadow: var(--glass-panel-shadow); border-radius: var(--radius-lg); padding: .85rem 1.5rem; margin-bottom: 3rem; position: sticky; top: 1rem; z-index: 50; }
.brand { display: flex; align-items: center; gap: .7rem; font-weight: 800; color: var(--primary-color); }
.brand-mark { width: 38px; height: 38px; border-radius: 12px; background: var(--accent-gradient); color: white; display: inline-flex; align-items: center; justify-content: center; box-shadow: 0 10px 24px var(--primary-light); }
.header-nav { display: flex; align-items: center; gap: 1.4rem; color: var(--text-muted); font-size: .9rem; font-weight: 600; }
.header-nav a:hover { color: var(--primary-color); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .55rem; border: none; border-radius: 100px; padding: .8rem 1.2rem; font-weight: 700; font-size: .9rem; cursor: pointer; transition: all .3s var(--transition); }
.btn-primary { background: var(--accent-gradient); color: white; box-shadow: 0 8px 24px var(--primary-light); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px var(--primary-light); }
.btn-secondary { background: var(--secondary-color); color: var(--primary-color); border: 1px solid var(--primary-light); }
.btn-ghost { background: var(--primary-very-light); color: var(--primary-color); border: 1px solid var(--primary-light); }

.hero { padding: 3.5rem 3rem; margin-bottom: 3rem; display: grid; grid-template-columns: minmax(0,1.1fr) minmax(300px,.9fr); gap: 2.4rem; align-items: center; }
.badge { display: inline-flex; align-items: center; gap: .5rem; background: var(--primary-very-light); color: var(--primary-color); padding: .5rem 1rem; border-radius: 100px; font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 1.4rem; border: 1px solid var(--primary-light); }
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary-color); box-shadow: 0 0 8px var(--primary-color); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.6rem); max-width: 760px; margin-bottom: 1.3rem; }
.gradient-text { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1.05rem; max-width: 680px; margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.hero-card { padding: 1.4rem; min-height: 320px; display: grid; gap: .9rem; align-content: center; background: radial-gradient(circle at 20% 15%, var(--primary-very-light), transparent 35%), radial-gradient(circle at 80% 85%, var(--accent-very-light), transparent 35%), var(--secondary-mid); }
.metric { background: var(--secondary-color); border: 1px solid var(--secondary-attenuated); border-radius: var(--radius-md); padding: 1rem; box-shadow: 0 10px 24px var(--neutral-very-light); }
.metric strong { display: block; font-size: 1.35rem; color: var(--primary-color); margin-bottom: .15rem; }
.metric span { color: var(--text-muted); font-size: .88rem; }

.section { margin-bottom: 3.8rem; }
.section-header { text-align: center; max-width: 760px; margin: 0 auto 2rem; }
.section-eyebrow { color: var(--primary-color); font-size: .82rem; font-weight: 800; text-transform: uppercase; letter-spacing: .15em; margin-bottom: .75rem; }
.section h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); margin-bottom: .85rem; }
.section-intro { font-size: 1rem; }

.library-layout { display: grid; grid-template-columns: 280px minmax(0,1fr); gap: 1.4rem; align-items: start; }
.filters { padding: 1.3rem; position: sticky; top: 6.5rem; }
.filter-group { margin-bottom: 1.15rem; }
.filter-group label { display: block; color: var(--text-main); font-size: .82rem; font-weight: 800; margin-bottom: .45rem; }
.input, select, textarea { width: 100%; border: 1px solid var(--secondary-attenuated); background: var(--secondary-color); border-radius: 14px; padding: .8rem .9rem; font: inherit; color: var(--text-main); outline: none; }
.input:focus, select:focus, textarea:focus { border-color: var(--primary-light); box-shadow: 0 0 0 4px var(--primary-very-light); }
.filter-actions { display: flex; gap: .6rem; flex-wrap: wrap; }
.results-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; color: var(--text-muted); font-size: .9rem; }
.cards-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
.course-card { padding: 1.35rem; display: flex; flex-direction: column; gap: .95rem; transition: all .35s var(--transition); }
.course-card:hover { transform: translateY(-4px); box-shadow: 0 25px 60px -12px var(--accent-light), inset 0 0 0 1px var(--secondary-color); }
.course-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.course-card h3 { font-size: 1.18rem; }
.course-meta { display: flex; flex-wrap: wrap; gap: .45rem; }
.tag { display: inline-flex; align-items: center; padding: .28rem .6rem; border-radius: 100px; background: var(--primary-very-light); color: var(--primary-color); font-size: .72rem; font-weight: 800; }
.course-desc { font-size: .92rem; }
.course-actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: auto; }

.cart-panel { padding: 1.3rem; margin-top: 1.2rem; }
.cart-items { display: grid; gap: .65rem; margin: 1rem 0; }
.cart-item { display: flex; justify-content: space-between; gap: .7rem; align-items: center; padding: .75rem; background: var(--secondary-color); border-radius: 14px; border: 1px solid var(--secondary-attenuated); font-size: .86rem; }
.cart-item button { border: none; background: transparent; color: #ef4444; cursor: pointer; font-size: 1rem; }
.request-form { display: grid; gap: .75rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.notice { padding: .8rem 1rem; border-radius: 14px; background: var(--primary-very-light); color: var(--primary-color); font-weight: 700; display: none; }
.notice.visible { display: block; }

.modal { position: fixed; inset: 0; background: rgba(30,30,46,.35); display: none; align-items: center; justify-content: center; padding: 1rem; z-index: 100; }
.modal.visible { display: flex; }
.modal-card { width: min(760px, 100%); max-height: 86vh; overflow: auto; padding: 1.6rem; background: rgba(255,255,255,.86); }
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; margin-bottom: 1rem; }
.icon-btn { border: none; width: 38px; height: 38px; border-radius: 50%; background: var(--primary-very-light); color: var(--primary-color); cursor: pointer; }
.notions { background: var(--secondary-color); border-radius: var(--radius-md); padding: 1rem 1.2rem; border: 1px solid var(--secondary-attenuated); }
.notions h1 { font-size: 1.35rem; margin-bottom: .8rem; }
.notions ul { padding-left: 1.2rem; color: var(--text-muted); }
.notions li { margin: .35rem 0; }

.admin-lock, .admin-content { padding: 2rem; }
.admin-content { display: none; }
.admin-content.visible { display: block; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 820px; background: var(--secondary-color); border-radius: var(--radius-md); overflow: hidden; }
th, td { padding: .8rem; border-bottom: 1px solid #eef0f5; text-align: left; vertical-align: top; font-size: .88rem; }
th { color: var(--primary-color); background: var(--primary-very-light); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.empty-state { text-align: center; padding: 2rem; color: var(--text-muted); }

.site-footer { padding: 2rem 0 1rem; text-align: center; color: var(--text-muted); font-size: .85rem; }

@media (max-width: 980px) {
    .hero, .library-layout { grid-template-columns: 1fr; }
    .filters { position: static; }
    .cards-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .page-wrapper { padding: .75rem; }
    .site-header { top: .5rem; padding: .7rem 1rem; }
    .header-nav { display: none; }
    .hero { padding: 2rem 1.2rem; }
    .hero-actions, .form-row { grid-template-columns: 1fr; flex-direction: column; }
    .btn { width: 100%; }
}

/* V2 client clean */
.site-header { margin-bottom: 1.6rem; }
.hero-compact {
    padding: 2.2rem 2.4rem;
    margin-bottom: 2.2rem;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
    gap: 1.4rem;
}
.hero-compact .badge { margin-bottom: 1rem; }
.hero-compact h1 {
    font-size: clamp(1.9rem, 4vw, 2.75rem);
    margin-bottom: .85rem;
}
.hero-compact .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1.25rem;
}
.hero-card-compact {
    min-height: auto;
    padding: 1rem;
    gap: .7rem;
}
.hero-card-compact .metric { padding: .85rem; }
.hero-card-compact .metric strong { font-size: 1.15rem; }
.section-header { margin-bottom: 1.6rem; }
.library-layout { margin-top: -.2rem; }
.results-head span:last-child { color: var(--primary-color); font-weight: 700; }
.course-card.selected {
    border-color: var(--primary-light);
    box-shadow: 0 25px 60px -16px var(--primary-light), inset 0 0 0 1px var(--primary-light);
}
.btn-selected {
    background: var(--primary-very-light);
    color: var(--primary-color);
    border: 1px solid var(--primary-light);
    box-shadow: none;
}
.btn-selected:hover {
    transform: translateY(-2px);
    background: var(--secondary-color);
}
.cart-panel h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
.cart-panel p { max-width: 760px; }
.cart-item strong { color: var(--text-main); }
.cart-item button {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #fff1f2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.request-form button[type="submit"] { justify-self: flex-start; }

@media (max-width: 980px) {
    .hero-compact { grid-template-columns: 1fr; }
    .hero-card-compact { grid-template-columns: repeat(2, minmax(0, 1fr)); min-height: auto; }
}
@media (max-width: 640px) {
    .hero-compact { padding: 1.6rem 1.2rem; }
    .hero-card-compact { grid-template-columns: 1fr; }
    .results-head { align-items: flex-start; flex-direction: column; }
}

/* V2 accès par clé */
.access-denied {
    display: none;
    width: min(520px, calc(100% - 2rem));
    padding: 2.2rem;
    text-align: center;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 200;
    background: rgba(255,255,255,.72);
}
.access-denied.visible { display: block; }
.access-denied .brand-mark { margin: 0 auto 1rem; }
.access-denied h1 { margin-bottom: .6rem; }
.locked .page-wrapper { display: none; }
.notions h2 {
    font-size: 1.02rem;
    margin: 1rem 0 .45rem;
    color: var(--primary-color);
}
.notions h2:first-child { margin-top: 0; }
.admin-grid {
    display: grid;
    grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr);
    gap: 1rem;
    align-items: start;
    margin-bottom: 1rem;
}
.generated-link {
    word-break: break-all;
    padding: .9rem;
    border-radius: 14px;
    background: var(--secondary-color);
    border: 1px solid var(--secondary-attenuated);
    color: var(--text-main);
    display: none;
}
.generated-link.visible { display: block; }
.small-muted { color: var(--text-muted); font-size: .86rem; }
@media (max-width: 900px) { .admin-grid { grid-template-columns: 1fr; } }

/* V2.1 admin tabs */
.admin-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
    margin-bottom: 1.2rem;
    padding: .5rem;
    border-radius: 999px;
    background: var(--secondary-color);
    border: 1px solid var(--secondary-attenuated);
}
.tab-btn {
    border: 0;
    border-radius: 999px;
    padding: .75rem 1rem;
    background: transparent;
    color: var(--text-muted);
    font: inherit;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    transition: all .25s var(--transition);
}
.tab-btn.active {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 8px 22px var(--primary-light);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.compact-input {
    width: min(260px, 100%);
    min-width: 220px;
}
.table-btn {
    padding: .55rem .75rem;
    font-size: .78rem;
    white-space: nowrap;
}
td code {
    font-size: .78rem;
    color: var(--text-main);
}
@media (max-width: 640px) {
    .admin-tabs { border-radius: var(--radius-md); }
    .tab-btn { width: 100%; justify-content: center; }
    .compact-input { width: 100%; min-width: 0; }
}

/* V2.2 request details */
.clickable-row { cursor: pointer; transition: background .2s ease; }
.clickable-row:hover { background: var(--primary-very-light); }
.request-detail { display: grid; gap: 1rem; }
.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .8rem;
}
.detail-grid > div,
.detail-block {
    padding: .9rem;
    border-radius: 14px;
    background: var(--secondary-color);
    border: 1px solid var(--secondary-attenuated);
}
.detail-grid span,
.detail-block span {
    display: block;
    color: var(--primary-color);
    font-size: .72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: .35rem;
}
.detail-grid strong { color: var(--text-main); font-size: .92rem; }
.detail-block ul { padding-left: 1.2rem; color: var(--text-main); }
.detail-block p { color: var(--text-main); white-space: pre-wrap; }
@media (max-width: 640px) { .detail-grid { grid-template-columns: 1fr; } }