/**
 * Formation "Decouvre ta destinee" - styles du lecteur gamifie et du modal.
 * Reprend l'identite visuelle de la page source : fond noir profond,
 * halos degrades rose/violet, cartes "verre", degrade #FF0080 -> #7928CA.
 * Tout est scope sous .dtd-formation pour ne pas toucher au theme.
 */

.dtd-formation {
    --dtdf-pink: #FF0080;
    --dtdf-purple: #7928CA;
    --dtdf-black: #050505;
    --dtdf-text: #ffffff;
    --dtdf-muted: #9ca3af;
    --dtdf-gradient: linear-gradient(135deg, #FF0080, #7928CA);

    /* Pleine largeur, meme dans le conteneur etroit du gabarit de page. */
    width: 100vw;
    margin-left: calc(50% - 50vw);
    padding: 3.5rem 1.5rem 5rem;
    box-sizing: border-box;

    background-color: var(--dtdf-black);
    background-image:
        radial-gradient(circle at top right, rgba(121, 40, 202, 0.15), transparent 40%),
        radial-gradient(circle at bottom left, rgba(255, 0, 128, 0.15), transparent 40%);
    color: var(--dtdf-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    border-radius: 1.5rem;
}

.dtd-formation *,
.dtd-formation *::before,
.dtd-formation *::after {
    box-sizing: inherit;
}

.dtd-formation__inner {
    max-width: 72rem;
    margin: 0 auto;
}

.dtd-formation-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* ------------------------------------------------------------------ *
 * Typographie commune
 * ------------------------------------------------------------------ */

.dtd-formation__eyebrow {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--dtdf-muted);
    margin: 0 0 0.5rem;
}

.dtd-formation__title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin: 0;
    color: var(--dtdf-text);
}

.dtd-formation__title em {
    font-style: italic;
    background: var(--dtdf-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* ------------------------------------------------------------------ *
 * Vue visiteur (presentation + CTA)
 * ------------------------------------------------------------------ */

.dtd-formation__hero {
    text-align: center;
    max-width: 46rem;
    margin: 0 auto 3rem;
}

.dtd-formation__lead {
    color: #d1d5db;
    font-size: 1.05rem;
    line-height: 1.7;
    margin: 1.25rem 0 2rem;
}

.dtd-formation__cta {
    display: inline-block;
    padding: 1rem 2.25rem;
    border: none;
    border-radius: 9999px;
    background: var(--dtdf-gradient);
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-shadow: 0 10px 30px -10px rgba(255, 0, 128, 0.5);
}

.dtd-formation__cta:hover,
.dtd-formation__cta:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px -10px rgba(255, 0, 128, 0.65);
}

.dtd-formation__login-hint {
    margin-top: 1.25rem;
    font-size: 0.9rem;
    color: var(--dtdf-muted);
}

.dtd-formation__login-hint a {
    color: var(--dtdf-pink);
    text-decoration: underline;
}

.dtd-formation__preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
    gap: 0.75rem;
}

.dtd-formation__preview-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    border-radius: 0.9rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--dtdf-muted);
    opacity: 0.55;
    filter: grayscale(60%);
}

.dtd-formation__preview-card.is-first {
    opacity: 1;
    filter: none;
    color: var(--dtdf-text);
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.2), rgba(121, 40, 202, 0.2));
    border-color: rgba(255, 0, 128, 0.5);
}

.dtd-formation__preview-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    flex-shrink: 0;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.08);
}

.dtd-formation__preview-card.is-first .dtd-formation__preview-icon {
    background: var(--dtdf-gradient);
    color: #ffffff;
}

.dtd-formation__preview-title {
    font-size: 0.9rem;
}

/* ------------------------------------------------------------------ *
 * Modal d'inscription
 * ------------------------------------------------------------------ */

.dtd-formation-modal {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(5, 5, 5, 0.85);
    backdrop-filter: blur(6px);
}

.dtd-formation-modal[hidden] {
    display: none;
}

body.dtd-formation-modal-open {
    overflow: hidden;
}

.dtd-formation-modal__card {
    position: relative;
    width: 100%;
    max-width: 28rem;
    padding: 2.25rem;
    border-radius: 1.25rem;
    background: #101014;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
    color: var(--dtdf-text);
}

.dtd-formation-modal__card h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.6rem;
    margin: 0 0 0.75rem;
    color: var(--dtdf-text);
}

.dtd-formation-modal__text {
    color: var(--dtdf-muted);
    line-height: 1.6;
    margin: 0 0 1.5rem;
}

.dtd-formation-modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem;
    border: none;
    background: transparent;
    color: var(--dtdf-muted);
    cursor: pointer;
}

.dtd-formation-modal__close:hover,
.dtd-formation-modal__close:focus-visible {
    color: var(--dtdf-pink);
}

.dtd-formation-modal__card form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.dtd-formation-modal__card input[type="email"] {
    width: 100%;
    padding: 0.9rem 1.1rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
    color: var(--dtdf-text);
    font-size: 1rem;
}

.dtd-formation-modal__card input[type="email"]:focus {
    outline: 2px solid var(--dtdf-pink);
    outline-offset: 1px;
}

.dtd-formation-modal__card button[type="submit"] {
    padding: 0.9rem 1.5rem;
    border: none;
    border-radius: 9999px;
    background: var(--dtdf-gradient);
    color: #ffffff;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
}

.dtd-formation-modal__card button[type="submit"]:disabled {
    opacity: 0.6;
    cursor: wait;
}

.dtd-formation-modal__message {
    margin: 1rem 0 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

.dtd-formation-modal__message.is-success {
    color: #34d399;
}

.dtd-formation-modal__message.is-error {
    color: #f87171;
}

/* ------------------------------------------------------------------ *
 * Vue etudiant : entete + progression
 * ------------------------------------------------------------------ */

.dtd-formation__course-header {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    text-align: center;
    margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
    .dtd-formation__course-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }
}

.dtd-formation__progress-card {
    width: 100%;
    max-width: 18rem;
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.dtd-formation__progress-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 0.5rem;
}

.dtd-formation__progress-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #d1d5db;
}

.dtd-formation__progress-value {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.3rem;
    font-weight: 700;
    background: var(--dtdf-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.dtd-formation__progress-track {
    width: 100%;
    height: 0.65rem;
    border-radius: 9999px;
    background: #1f2937;
    overflow: hidden;
}

.dtd-formation__progress-bar {
    height: 100%;
    border-radius: 9999px;
    background: var(--dtdf-gradient);
    transition: width 1s ease-out;
}

.dtd-formation__milestone-badge {
    margin: 0.75rem 0 0;
    font-size: 0.85rem;
    font-weight: 600;
    color: #d1d5db;
}

/* ------------------------------------------------------------------ *
 * Vue etudiant : lecteur + playlist
 * ------------------------------------------------------------------ */

.dtd-formation__layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .dtd-formation__layout {
        grid-template-columns: 2fr 1fr;
        align-items: start;
    }
}

.dtd-formation__player-frame {
    padding: 4px;
    border-radius: 1.15rem;
    background: var(--dtdf-gradient);
}

.dtd-formation__player-ratio {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 0.9rem;
    background: #000000;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.dtd-formation__player-ratio iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.dtd-formation__now {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.dtd-formation__now h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.5rem;
    margin: 0 0 0.5rem;
    color: var(--dtdf-text);
}

.dtd-formation__now p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--dtdf-muted);
}

.dtd-formation__trophy {
    background: var(--dtdf-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.dtd-formation__playlist {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: 70vh;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.dtd-formation__chapter {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 0.9rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.dtd-formation__chapter:hover:not(.is-locked):not(.is-active),
.dtd-formation__chapter:focus-visible {
    border-color: rgba(255, 0, 128, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px rgba(255, 0, 128, 0.3);
}

.dtd-formation__chapter.is-active {
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.2), rgba(121, 40, 202, 0.2));
    border-color: rgba(255, 0, 128, 0.5);
    cursor: default;
}

.dtd-formation__chapter.is-locked {
    opacity: 0.4;
    filter: grayscale(100%);
    cursor: not-allowed;
}

.dtd-formation__chapter-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--dtdf-text);
    font-size: 0.85rem;
    font-weight: 700;
}

.dtd-formation__chapter.is-locked .dtd-formation__chapter-icon {
    background: #1f2937;
    color: #6b7280;
}

.dtd-formation__chapter.is-active .dtd-formation__chapter-icon {
    background: var(--dtdf-gradient);
    box-shadow: 0 0 20px rgba(255, 0, 128, 0.5);
}

.dtd-formation__chapter-body {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.dtd-formation__chapter-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1rem;
    color: #e5e7eb;
}

.dtd-formation__chapter.is-active .dtd-formation__chapter-title {
    color: #ffffff;
    font-weight: 700;
}

.dtd-formation__chapter-status {
    font-size: 0.75rem;
    color: #6b7280;
}

.dtd-formation__chapter.is-active .dtd-formation__chapter-status {
    color: #f9a8d4;
}

/* ------------------------------------------------------------------ *
 * Toast de palier atteint (gamification)
 * ------------------------------------------------------------------ */

.dtd-formation__toast {
    position: fixed;
    left: 50%;
    bottom: 2rem;
    transform: translateX(-50%) translateY(1rem);
    z-index: 95;
    padding: 0.9rem 1.5rem;
    border-radius: 9999px;
    background: var(--dtdf-gradient);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 15px 40px rgba(255, 0, 128, 0.4);
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.4s ease;
    pointer-events: none;
}

.dtd-formation__toast.is-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.dtd-formation__toast[hidden] {
    display: none;
}