/* ============================================================
   EDUCOURS COLLÈGE — FEUILLE DE STYLE
   ============================================================ */

:root {
    --ec-bg: #f6f7fb;
    --ec-surface: #ffffff;
    --ec-border: #e6e8f0;
    --ec-text: #1f2430;
    --ec-text-muted: #6b7280;
    --ec-primary: #4f46e5;
    --ec-primary-dark: #4338ca;
    --ec-primary-soft: #eef2ff;
    --ec-success: #16a34a;
    --ec-success-soft: #dcfce7;
    --ec-warning: #d97706;
    --ec-warning-soft: #fef3c7;
    --ec-radius: 16px;
    --ec-radius-sm: 10px;
    --ec-shadow: 0 4px 16px rgba(31, 36, 48, 0.06);
}

.ec-app * {
    box-sizing: border-box;
}

.ec-app {
    display: grid;
    grid-template-columns: 260px 1fr 280px;
    gap: 24px;
    max-width: 1280px;
    margin: 24px auto;
    padding: 0 16px;
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    color: var(--ec-text);
    background: var(--ec-bg);
}

@media (max-width: 1024px) {
    .ec-app {
        grid-template-columns: 1fr;
    }
    .ec-rightbar {
        order: 3;
    }
}


/* ---------- Composants génériques ---------- */

.ec-alert {
    background: var(--ec-warning-soft);
    color: var(--ec-warning);
    border-radius: var(--ec-radius-sm);
    padding: 12px 16px;
    font-weight: 600;
}

.ec-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--ec-surface);
    border: 1px solid var(--ec-border);
    color: var(--ec-text);
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.95rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.ec-btn:hover {
    box-shadow: var(--ec-shadow);
    transform: translateY(-1px);
}

.ec-btn-primary {
    background: var(--ec-primary);
    border-color: var(--ec-primary);
    color: #fff;
}

.ec-btn-primary:hover {
    background: var(--ec-primary-dark);
}


/* ---------- Sidebar gauche ---------- */

.ec-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ec-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--ec-surface);
    border-radius: var(--ec-radius);
    padding: 16px;
    box-shadow: var(--ec-shadow);
}

.ec-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--ec-primary-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    overflow: hidden;
    flex-shrink: 0;
}

.ec-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ec-hello {
    font-size: 0.8rem;
    color: var(--ec-text-muted);
}

.ec-username {
    font-weight: 700;
    font-size: 1.05rem;
}

.ec-stats {
    display: flex;
    gap: 12px;
    background: var(--ec-surface);
    border-radius: var(--ec-radius);
    padding: 16px;
    box-shadow: var(--ec-shadow);
}

.ec-stat {
    flex: 1;
    text-align: center;
}

.ec-stat strong {
    display: block;
    font-size: 1.4rem;
    color: var(--ec-primary);
}

.ec-stat small {
    color: var(--ec-text-muted);
    font-size: 0.75rem;
}

.ec-side-card {
    background: var(--ec-surface);
    border-radius: var(--ec-radius);
    padding: 16px;
    box-shadow: var(--ec-shadow);
}

.ec-side-card.ec-tip {
    background: var(--ec-primary-soft);
}

.ec-card-title {
    font-weight: 700;
    margin-bottom: 8px;
}

.ec-side-card p,
.ec-card p {
    color: var(--ec-text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}


/* ---------- Contenu principal ---------- */

.ec-main {
    display: flex;
    flex-direction: column;
    gap: 24px;
    min-width: 0;
}

.ec-breadcrumb {
    font-size: 0.85rem;
    color: var(--ec-text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ec-breadcrumb a {
    color: var(--ec-primary);
    text-decoration: none;
}

.ec-breadcrumb a:hover {
    text-decoration: underline;
}

.ec-hero {
    background: linear-gradient(135deg, var(--ec-primary), var(--ec-primary-dark));
    color: #fff;
    border-radius: var(--ec-radius);
    padding: 32px;
    display: flex;
    align-items: center;
    gap: 24px;
    box-shadow: var(--ec-shadow);
}

.ec-hero.ec-hero-compact {
    padding: 24px;
}

.ec-hero-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.ec-hero-content h1 {
    margin: 8px 0;
    font-size: 1.6rem;
}

.ec-hero-content p {
    margin: 0;
    opacity: 0.9;
    max-width: 560px;
}

.ec-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.18);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.ec-hero-mini {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.ec-hero-mini span {
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
}

.ec-section {
    background: var(--ec-surface);
    border-radius: var(--ec-radius);
    padding: 24px;
    box-shadow: var(--ec-shadow);
}

.ec-section-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.ec-kicker {
    display: block;
    color: var(--ec-primary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ec-section-head h2 {
    margin: 4px 0 0;
    font-size: 1.25rem;
}

.ec-current-level {
    background: var(--ec-primary-soft);
    color: var(--ec-primary);
    padding: 4px 14px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.85rem;
}


/* ---------- Niveaux ---------- */

.ec-levels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.ec-level {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 16px;
    border-radius: var(--ec-radius-sm);
    border: 1px solid var(--ec-border);
    text-decoration: none;
    color: var(--ec-text);
    font-weight: 700;
    text-transform: uppercase;
    transition: all 0.15s ease;
}

.ec-level small {
    font-weight: 400;
    text-transform: none;
    color: var(--ec-text-muted);
    font-size: 0.75rem;
}

.ec-level:hover {
    border-color: var(--ec-primary);
}

.ec-level.active {
    background: var(--ec-primary);
    border-color: var(--ec-primary);
    color: #fff;
}

.ec-level.active small {
    color: rgba(255, 255, 255, 0.8);
}


/* ---------- Grille matières / chapitres ---------- */

.ec-subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.ec-subject {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: var(--ec-radius-sm);
    border: 1px solid var(--ec-border);
    text-decoration: none;
    color: var(--ec-text);
    transition: all 0.15s ease;
}

.ec-subject:hover {
    border-color: var(--ec-primary);
    box-shadow: var(--ec-shadow);
    transform: translateY(-2px);
}

.ec-subject-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.ec-subject-content h3 {
    margin: 0 0 4px;
    font-size: 1rem;
}

.ec-subject-content p {
    margin: 0;
    color: var(--ec-text-muted);
    font-size: 0.85rem;
    line-height: 1.4;
}

.ec-arrow {
    margin-left: auto;
    color: var(--ec-primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}


/* ---------- Liste des notions ---------- */

.ec-topic-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ec-topic {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 18px;
    border-radius: var(--ec-radius-sm);
    border: 1px solid var(--ec-border);
    text-decoration: none;
    color: var(--ec-text);
    transition: all 0.15s ease;
}

.ec-topic:hover {
    border-color: var(--ec-primary);
    box-shadow: var(--ec-shadow);
}

.ec-topic.ec-topic-done {
    background: var(--ec-success-soft);
    border-color: var(--ec-success);
}

.ec-topic-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.ec-topic-content {
    flex: 1;
    min-width: 0;
}

.ec-topic-content h3 {
    margin: 0 0 2px;
    font-size: 0.95rem;
}

.ec-topic-content p {
    margin: 0 0 4px;
    color: var(--ec-text-muted);
    font-size: 0.82rem;
}

.ec-topic-difficulty {
    font-size: 0.75rem;
    color: var(--ec-text-muted);
}

.ec-status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.ec-status-done {
    background: var(--ec-success-soft);
    color: var(--ec-success);
}

.ec-status-started {
    background: var(--ec-warning-soft);
    color: var(--ec-warning);
}

.ec-status-large {
    font-size: 0.95rem;
    padding: 8px 20px;
}


/* ---------- Contenu du cours (notion.php) ---------- */

.ec-course-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ec-course-block h2 {
    font-size: 1.05rem;
    margin: 0 0 8px;
}

.ec-course-block p,
.ec-course-block div {
    color: var(--ec-text);
    line-height: 1.65;
    font-size: 0.95rem;
}

.ec-block-essential {
    background: var(--ec-primary-soft);
    padding: 16px;
    border-radius: var(--ec-radius-sm);
}

.ec-block-warning {
    background: var(--ec-warning-soft);
    padding: 16px;
    border-radius: var(--ec-radius-sm);
}

.ec-block-warning h2 {
    color: var(--ec-warning);
}

.ec-block-summary {
    background: var(--ec-bg);
    padding: 16px;
    border-radius: var(--ec-radius-sm);
    border: 1px dashed var(--ec-border);
}

.ec-course-validate {
    text-align: center;
    padding: 24px;
    border-top: 1px solid var(--ec-border);
}

.ec-next-step {
    margin-top: 8px;
    font-weight: 600;
    color: var(--ec-primary);
}

.ec-course-nav {
    text-align: center;
}


/* ---------- Sidebar droite ---------- */

.ec-rightbar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ec-card {
    background: var(--ec-surface);
    border-radius: var(--ec-radius);
    padding: 16px;
    box-shadow: var(--ec-shadow);
}

.ec-card.ec-highlight {
    background: var(--ec-primary-soft);
}

.ec-step {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.9rem;
}

.ec-step b {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--ec-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.ec-flow {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    font-size: 1.3rem;
}

.ec-flow i {
    color: var(--ec-text-muted);
    font-style: normal;
}


/* ---------- Vide / erreur ---------- */

.ec-empty {
    text-align: center;
    padding: 48px 24px;
}

.ec-empty-icon {
    font-size: 42px;
    margin-bottom: 12px;
}

.ec-empty h3 {
    margin: 0 0 8px;
}

.ec-empty p {
    color: var(--ec-text-muted);
    margin: 0 0 16px;
}
```css
/* ============================================================
   BOUTONS DE FIN DE NOTION
   ============================================================ */

.ec-next-actions {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 14px;
    margin-top: 22px;
    width: 100%;
}

.ec-next-actions .ec-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 13px 22px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        opacity 0.2s ease;
}

.ec-next-actions .ec-btn:hover {
    transform: translateY(-2px);
}

/* Exercices */

.ec-next-actions .ec-btn-exercises {
    background: linear-gradient(135deg, #ffb347, #ff8c42);
    color: #fff;
    box-shadow: 0 5px 14px rgba(255, 140, 66, 0.25);
}

/* EduQuiz */

.ec-next-actions .ec-btn-quiz {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    box-shadow: 0 5px 14px rgba(102, 126, 234, 0.25);
}


/* ============================================================
   MOBILE
   ============================================================ */

@media (max-width: 700px) {

    .ec-next-actions {
        flex-direction: column;
        gap: 10px;
    }

    .ec-next-actions .ec-btn {
        width: 100%;
    }

}
```