/**
 * 🎓 EDUCATION MODULE — Sprint A+B Radim styles
 * Masthead, recommendation card, badges, slow-mode, help hints.
 * Uses --radim-* design tokens. Loaded after learning-radim.css.
 */

/* ============================================================
   RADIM MASTHEAD
   ============================================================ */
.edu-masthead {
    display: flex;
    gap: 18px;
    padding: 20px;
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 12%, var(--radim-surface, #fff)) 0%,
        var(--radim-surface, #fff) 100%);
    border: 2px solid color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 22%, transparent);
    border-radius: var(--radim-radius-2xl, 20px);
    margin-bottom: 18px;
    align-items: center;
}

.edu-masthead-avatar {
    flex-shrink: 0;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%,
        color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 22%, #fff) 0%,
        color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 10%, #fff) 100%);
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 3px solid color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 40%, transparent);
    box-shadow: 0 4px 14px color-mix(in srgb, var(--radim-primary) 22%, transparent);
}

.edu-masthead-avatar img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* scoot the head slightly so it centers in the circle */
    transform: translateY(2px) scale(1.05);
}

.edu-masthead-body {
    flex: 1;
    min-width: 0;
}

.edu-masthead-greeting {
    font-size: var(--radim-font-lg, 1.125rem);
    font-weight: 700;
    color: var(--radim-text, #1a2733);
    margin: 0 0 4px 0;
    line-height: 1.25;
}

.edu-masthead-greeting strong {
    color: var(--radim-primary, var(--radim-primary));
}

.edu-masthead-sub {
    font-size: var(--radim-font-sm, 0.9rem);
    color: var(--radim-text-muted, #6b7b8a);
    margin: 0 0 10px 0;
}

.edu-masthead-stats {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
}

.edu-stat-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--radim-surface, #fff);
    border: 1.5px solid color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 18%, transparent);
    border-radius: var(--radim-radius-2xl, 999px);
    font-size: var(--radim-font-sm, 0.9rem);
    font-weight: 600;
    color: var(--radim-text, #1a2733);
}

.edu-stat-chip .edu-stat-icon { font-size: 1.1rem; }

.edu-weekly-goal {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
    padding: 8px 12px;
    background: color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 8%, var(--radim-surface, #fff));
    border-radius: var(--radim-radius-lg, 12px);
    font-size: var(--radim-font-sm, 0.9rem);
}

.edu-weekly-bar {
    flex: 1;
    height: 8px;
    background: color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 15%, #e2e8f0);
    border-radius: 999px;
    overflow: hidden;
}

.edu-weekly-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--radim-primary, var(--radim-primary)), #4ade80);
    transition: width 0.4s ease;
}

/* ============================================================
   BADGES
   ============================================================ */
.edu-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.edu-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 1.5px solid #f59e0b;
    color: #92400e;
    border-radius: var(--radim-radius-2xl, 999px);
    font-size: var(--radim-font-xs, 0.78rem);
    font-weight: 700;
    animation: eduBadgePop 0.35s ease-out;
}

@keyframes eduBadgePop {
    from { transform: scale(0.7); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.edu-badge-locked {
    background: #f1f5f9;
    border-color: #cbd5e1;
    color: #94a3b8;
    filter: grayscale(0.6);
}

/* ============================================================
   "CONTINUE WHERE LEFT OFF" BUTTON
   ============================================================ */
.edu-resume-card {
    display: flex;
    gap: 14px;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    border: 2px dashed #fb923c;
    border-radius: var(--radim-radius-xl, 16px);
    margin-bottom: 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.edu-resume-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(251, 146, 60, 0.25);
}

.edu-resume-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.edu-resume-body { flex: 1; }

.edu-resume-body h4 {
    margin: 0 0 2px 0;
    font-size: var(--radim-font-md, 1rem);
    color: #9a3412;
}

.edu-resume-body p {
    margin: 0;
    color: #c2410c;
    font-size: var(--radim-font-sm, 0.9rem);
}

.edu-resume-arrow {
    font-size: 1.5rem;
    color: #ea580c;
}

/* ============================================================
   LEKCE DNE — RECOMMENDATION CARD
   ============================================================ */
.edu-recommend-card {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 18px 20px;
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 14%, var(--radim-surface, #fff)) 0%,
        var(--radim-surface, #fff) 100%);
    border: 2px solid var(--radim-primary, var(--radim-primary));
    border-radius: var(--radim-radius-xl, 16px);
    margin-bottom: 18px;
}

.edu-recommend-avatar {
    flex-shrink: 0;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%,
        color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 18%, #fff),
        color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 6%, #fff));
    overflow: hidden;
    display: grid;
    place-items: center;
    border: 2px solid var(--radim-primary, var(--radim-primary));
}

.edu-recommend-avatar img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transform: translateY(1px) scale(1.05);
}

.edu-recommend-body { flex: 1; }

.edu-recommend-label {
    display: inline-block;
    font-size: var(--radim-font-xs, 0.72rem);
    font-weight: 700;
    color: var(--radim-primary, var(--radim-primary));
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.edu-recommend-body h4 {
    margin: 0 0 4px 0;
    font-size: var(--radim-font-md, 1rem);
    color: var(--radim-text, #1a2733);
}

.edu-recommend-body p {
    margin: 0 0 10px 0;
    color: var(--radim-text-muted, #6b7b8a);
    font-size: var(--radim-font-sm, 0.9rem);
}

.edu-recommend-btn {
    padding: 9px 16px;
    background: var(--radim-primary, var(--radim-primary));
    color: #fff;
    border: none;
    border-radius: var(--radim-radius-lg, 12px);
    font-weight: 700;
    font-size: var(--radim-font-sm, 0.9rem);
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}

.edu-recommend-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px color-mix(in srgb, var(--radim-primary) 30%, transparent);
}

/* ============================================================
   SETTINGS BAR (Slow mode, Help)
   ============================================================ */
.edu-settings-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 14px;
    justify-content: flex-end;
}

.edu-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--radim-surface, #fff);
    border: 1.5px solid #cbd5e1;
    border-radius: var(--radim-radius-2xl, 999px);
    cursor: pointer;
    font-size: var(--radim-font-sm, 0.9rem);
    font-weight: 600;
    color: var(--radim-text-muted, #6b7b8a);
    transition: all 0.2s;
}

.edu-toggle-btn:hover {
    border-color: var(--radim-primary, var(--radim-primary));
    color: var(--radim-primary, var(--radim-primary));
}

.edu-toggle-btn.active {
    background: color-mix(in srgb, var(--radim-primary, var(--radim-primary)) 18%, var(--radim-surface, #fff));
    border-color: var(--radim-primary, var(--radim-primary));
    color: var(--radim-primary, var(--radim-primary));
}

/* ============================================================
   SLOW MODE — larger text, slower animations
   ============================================================ */
.edu-slow-mode {
    font-size: 1.12em;
    line-height: 1.65;
}

.edu-slow-mode .learn-exercise-q {
    font-size: 1.35rem;
    line-height: 1.55;
}

.edu-slow-mode .learn-opt-btn {
    font-size: 1.15rem;
    padding: 18px 20px;
    min-height: 64px;
}

.edu-slow-mode .learn-btn-primary,
.edu-slow-mode .learn-btn-sec {
    font-size: 1.1rem;
    padding: 16px 24px;
}

.edu-slow-mode .learn-info-text {
    font-size: 1.2rem;
    line-height: 1.7;
}

/* ============================================================
   HELP HINT BALLOON
   ============================================================ */
.edu-help-balloon {
    position: relative;
    padding: 14px 18px 14px 52px;
    background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
    border: 2px solid #6366f1;
    border-radius: var(--radim-radius-lg, 14px);
    color: #3730a3;
    font-size: var(--radim-font-sm, 0.95rem);
    line-height: 1.5;
    margin-bottom: 16px;
    animation: eduHelpSlide 0.3s ease-out;
}

.edu-help-balloon::before {
    content: '🦉';
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.6rem;
}

.edu-help-close {
    position: absolute;
    top: 6px;
    right: 8px;
    background: transparent;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    color: #6366f1;
    padding: 4px 8px;
    border-radius: 8px;
}

.edu-help-close:hover { background: rgba(99, 102, 241, 0.15); }

@keyframes eduHelpSlide {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   CERTIFICATE MODAL
   ============================================================ */
.edu-cert-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(15, 23, 42, 0.72);
    display: grid;
    place-items: center;
    padding: 20px;
    animation: eduHelpSlide 0.3s ease-out;
}

.edu-cert-paper {
    max-width: 640px;
    width: 100%;
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 4px double #b45309;
    border-radius: var(--radim-radius-2xl, 20px);
    padding: 40px 32px;
    text-align: center;
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.35);
    font-family: Georgia, 'Times New Roman', serif;
}

.edu-cert-header {
    font-size: 2.1rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: #92400e;
    margin-bottom: 18px;
}

.edu-cert-recipient {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1a2733;
    margin: 12px 0;
}

.edu-cert-paper h2 {
    font-size: 1.8rem;
    color: var(--radim-primary, var(--radim-primary));
    margin: 10px 0;
}

.edu-cert-paper p { color: #334155; margin: 8px 0; font-size: 1.05rem; }

.edu-cert-date {
    margin-top: 16px;
    font-style: italic;
    color: #64748b;
    font-size: 0.9rem;
}

.edu-cert-sig {
    margin-top: 24px;
    font-style: italic;
    font-weight: 600;
    color: #78350f;
    border-top: 1px solid #d97706;
    padding-top: 14px;
}

.edu-cert-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    justify-content: center;
    flex-wrap: wrap;
    font-family: inherit;
}

@media print {
    body > *:not(.edu-cert-modal) { display: none !important; }
    .edu-cert-modal {
        position: static;
        background: transparent;
        padding: 0;
    }
    .edu-cert-paper { box-shadow: none; }
    .edu-cert-actions { display: none; }
}

/* ============================================================
   MOBILE
   ============================================================ */
@media (max-width: 640px) {
    .edu-masthead {
        flex-direction: column;
        text-align: center;
        padding: 16px;
    }
    .edu-masthead-stats { justify-content: center; }
    .edu-weekly-goal { flex-direction: column; align-items: stretch; gap: 6px; }
    .edu-recommend-card { flex-direction: column; }
    .edu-recommend-avatar { margin: 0 auto; }
    .edu-recommend-body { text-align: center; }
    .edu-settings-bar { justify-content: center; }
    .edu-resume-card { padding: 14px; }
}