/* ═══════════════════════════════════════════════════════════════
   CyberAcadémie — Styles partagés pour toutes les activités
   Inclure dans chaque page d'activité :
     <link rel="stylesheet" href="../../css/activity.css">
   ═══════════════════════════════════════════════════════════════ */

/* ──────────────────────────────────────────────────────────────
   1. VARIABLES (même charte que style.css — synchroniser si modifié)
   ────────────────────────────────────────────────────────────── */
:root {
    --bg-base:        #0f0f1a;
    --bg-card:        #16213e;
    --bg-card-hover:  #1a274f;
    --bg-panel:       #1c2a4a;
    --text-primary:   #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted:     #64748b;
    --border:         rgba(255, 255, 255, 0.08);
    --border-hover:   rgba(255, 255, 255, 0.18);
    --shadow-card:    0 4px 24px rgba(0, 0, 0, 0.55);
    --accent:         #58a6ff;
    --success:        #22c55e;
    --success-bg:     rgba(34, 197, 94, 0.12);
    --warning:        #f59e0b;
    --warning-bg:     rgba(245, 158, 11, 0.12);
    --danger:         #ef4444;
    --danger-bg:      rgba(239, 68, 68, 0.12);

    /* Modules */
    --m1: #06b6d4; --m1-bg: rgba(6, 182, 212, 0.1);
    --m2: #22c55e; --m2-bg: rgba(34, 197, 94, 0.1);
    --m3: #f97316; --m3-bg: rgba(249, 115, 22, 0.1);
    --m4: #a855f7; --m4-bg: rgba(168, 85, 247, 0.1);

    --r-sm: 8px;
    --r-md: 14px;
    --r-lg: 20px;
    --r-xl: 28px;
    --t-fast:   0.15s ease;
    --t-normal: 0.25s ease;
}

/* ──────────────────────────────────────────────────────────────
   2. RESET & BASE
   ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        linear-gradient(rgba(88, 166, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(88, 166, 255, 0.03) 1px, transparent 1px);
    background-size: 44px 44px;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ──────────────────────────────────────────────────────────────
   3. NAVIGATION RETOUR (en haut de chaque page d'activité)
   ────────────────────────────────────────────────────────────── */
.activity-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(15, 15, 26, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0.65rem 1.5rem;
}

.activity-nav-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Bouton retour */
.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: inherit;
    padding: 0.4rem 0.9rem;
    cursor: pointer;
    transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
    flex-shrink: 0;
}
.btn-back:hover {
    background: rgba(255,255,255,0.12);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

/* Fil d'Ariane */
.breadcrumb {
    flex: 1;
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
}
.breadcrumb-sep  { color: var(--text-muted); opacity: 0.5; }
.breadcrumb-curr { color: var(--text-primary); font-weight: 600; }

/* Badge de module coloré */
.module-tag {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.2rem 0.6rem;
    border-radius: 99px;
    flex-shrink: 0;
}
.module-tag.m1 { background: var(--m1-bg); color: var(--m1); }
.module-tag.m2 { background: var(--m2-bg); color: var(--m2); }
.module-tag.m3 { background: var(--m3-bg); color: var(--m3); }
.module-tag.m4 { background: var(--m4-bg); color: var(--m4); }

/* ──────────────────────────────────────────────────────────────
   4. EN-TÊTE D'ACTIVITÉ
   ────────────────────────────────────────────────────────────── */
.activity-header {
    max-width: 900px;
    margin: 2.5rem auto 2rem;
    padding: 0 1.5rem;
    text-align: center;
}

.activity-number {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.activity-title {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.activity-subtitle {
    font-size: clamp(0.9rem, 2vw, 1.05rem);
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.65;
}

/* ──────────────────────────────────────────────────────────────
   5. CONTENEUR PRINCIPAL DE L'ACTIVITÉ
   ────────────────────────────────────────────────────────────── */
.activity-main {
    max-width: 900px;
    margin: 0 auto 4rem;
    padding: 0 1.5rem;
}

/* Carte de contenu générique */
.activity-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 2rem;
    box-shadow: var(--shadow-card);
    margin-bottom: 1.5rem;
}

/* ──────────────────────────────────────────────────────────────
   6. BOUTONS RÉUTILISABLES
   ────────────────────────────────────────────────────────────── */

/* Bouton principal */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--accent), #3b82f6);
    border: none;
    border-radius: var(--r-md);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: transform var(--t-fast), box-shadow var(--t-fast), filter var(--t-fast);
    box-shadow: 0 4px 20px rgba(88, 166, 255, 0.35);
}
.btn-primary:hover  { transform: translateY(-2px); filter: brightness(1.1); box-shadow: 0 8px 28px rgba(88,166,255,0.5); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Bouton succès (vert) */
.btn-success {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    box-shadow: 0 4px 20px rgba(34, 197, 94, 0.35);
}
.btn-success:hover { box-shadow: 0 8px 28px rgba(34,197,94,0.5); }

/* Bouton danger (rouge) */
.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.35);
}
.btn-danger:hover { box-shadow: 0 8px 28px rgba(239,68,68,0.5); }

/* Bouton secondaire (outline) */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 2px solid var(--border-hover);
    border-radius: var(--r-md);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.07);
    color: var(--text-primary);
    border-color: var(--accent);
}

/* Groupe de boutons centré */
.btn-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1.5rem;
}

/* ──────────────────────────────────────────────────────────────
   7. FEEDBACK (retours corrects/incorrects)
   ────────────────────────────────────────────────────────────── */
.feedback {
    display: none;  /* masqué par défaut, affiché via JS */
    padding: 1rem 1.25rem;
    border-radius: var(--r-md);
    margin-top: 1rem;
    font-size: 0.95rem;
    line-height: 1.5;
    animation: feedback-appear 0.3s ease;
}

@keyframes feedback-appear {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0);   }
}

.feedback.success {
    background: var(--success-bg);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #4ade80;
}

.feedback.error {
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
}

.feedback.info {
    background: rgba(88, 166, 255, 0.1);
    border: 1px solid rgba(88, 166, 255, 0.25);
    color: #93c5fd;
}

/* ──────────────────────────────────────────────────────────────
   8. SCORE & RÉSULTATS
   ────────────────────────────────────────────────────────────── */
.score-panel {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    margin-top: 1.5rem;
    animation: slide-up 0.4s ease;
}

@keyframes slide-up {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

.score-emoji { font-size: 3.5rem; margin-bottom: 0.75rem; }

.score-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.score-value {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), #22c55e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin: 0.5rem 0;
}

.score-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Barres de score colorées */
.score-bar-wrap {
    height: 12px;
    background: rgba(255,255,255,0.07);
    border-radius: 99px;
    overflow: hidden;
    margin: 0.5rem auto;
    max-width: 400px;
}
.score-bar {
    height: 100%;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--accent), #22c55e);
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ──────────────────────────────────────────────────────────────
   9. CHAMPS DE SAISIE
   ────────────────────────────────────────────────────────────── */
.input-field {
    width: 100%;
    padding: 0.85rem 1.1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border);
    border-radius: var(--r-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.input-field::placeholder { color: var(--text-muted); }
.input-field:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

/* Select (listes déroulantes) */
.select-field {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border);
    border-radius: var(--r-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    transition: border-color var(--t-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}
.select-field option { background: #16213e; }
.select-field:focus { border-color: var(--accent); }

/* Label de champ */
.field-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Groupe label + champ */
.field-group { margin-bottom: 1.25rem; }

/* ──────────────────────────────────────────────────────────────
   10. INDICATEUR DE PROGRESSION DANS L'ACTIVITÉ (étapes)
   ────────────────────────────────────────────────────────────── */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.step-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    transition: background var(--t-normal), transform var(--t-normal);
}
.step-dot.active  { background: var(--accent); transform: scale(1.3); }
.step-dot.done    { background: var(--success); }

/* ──────────────────────────────────────────────────────────────
   11. BANDEAU DE COMPLÉTION (affiché à la fin de l'activité)
   ────────────────────────────────────────────────────────────── */
.completion-banner {
    display: none; /* affiché via JS */
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(34,197,94,0.15), rgba(88,166,255,0.1));
    border: 1px solid rgba(34,197,94,0.3);
    border-radius: var(--r-lg);
    margin-top: 2rem;
    animation: slide-up 0.4s ease;
}
.completion-banner .trophy { font-size: 3rem; margin-bottom: 0.5rem; }
.completion-banner h3 { font-size: 1.3rem; font-weight: 700; color: var(--success); }
.completion-banner p { color: var(--text-secondary); margin-top: 0.4rem; }

/* ──────────────────────────────────────────────────────────────
   12. NAVIGATION BAS DE PAGE (activité précédente / suivante)
   ────────────────────────────────────────────────────────────── */
.activity-footer-nav {
    max-width: 900px;
    margin: 2rem auto 4rem;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.nav-prev, .nav-next {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
    text-decoration: none;
}
.nav-prev:hover, .nav-next:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

/* Bouton "suivante" verrouillé tant que l'activité n'est pas terminée */
.nav-next.nav-locked {
    opacity: 0.42;
    cursor: not-allowed;
    filter: grayscale(0.6);
    transform: none !important;
}
.nav-next.nav-locked::after {
    content: ' 🔒';
}

.nav-home {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-decoration: underline;
    text-underline-offset: 3px;
    cursor: pointer;
}
.nav-home:hover { color: var(--accent); }

/* ──────────────────────────────────────────────────────────────
   13. INFOBULLE / TOOLTIP
   ────────────────────────────────────────────────────────────── */
[data-tooltip] {
    position: relative;
    cursor: pointer;
}
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #1c2a4a;
    border: 1px solid var(--border-hover);
    color: var(--text-primary);
    font-size: 0.8rem;
    line-height: 1.4;
    padding: 0.5rem 0.75rem;
    border-radius: var(--r-sm);
    white-space: nowrap;
    max-width: 240px;
    white-space: normal;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--t-normal);
    z-index: 100;
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}
[data-tooltip]:hover::after { opacity: 1; }

/* ──────────────────────────────────────────────────────────────
   14. RESPONSIVE
   ────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
    .activity-header    { margin-top: 1.5rem; }
    .activity-card      { padding: 1.25rem; }
    .activity-footer-nav { flex-direction: column; align-items: stretch; }
    .nav-prev, .nav-next { justify-content: center; }
}

/* ──────────────────────────────────────────────────────────────
   15. FOCUS ACCESSIBLE
   ────────────────────────────────────────────────────────────── */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: var(--r-sm);
}

/* ──────────────────────────────────────────────────────────────
   16. SCROLLBAR
   ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar          { width: 8px; }
::-webkit-scrollbar-track    { background: var(--bg-base); }
::-webkit-scrollbar-thumb    { background: rgba(255,255,255,0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }