/* --- Date & Time Training Styles --- */

.datetime-page {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.datetime-intro-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 1.75rem 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    border-left: 5px solid #004d99;
}

.datetime-intro-card h2 {
    color: #004d99;
    margin-top: 0;
    font-size: 1.8rem;
}

.datetime-intro-card p {
    color: #334155;
    line-height: 1.6;
    margin-bottom: 0.85rem;
}

.datetime-banner {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-top: 1.25rem;
    background: #f0f7ff;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #bae6fd;
}

.datetime-chip {
    background: #ffffff;
    border: 1px solid #0284c7;
    border-radius: 6px;
    padding: 0.5rem 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
    color: #0369a1;
}

/* --- Summary Bar --- */
.datetime-summary-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.datetime-stat-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 1.25rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.datetime-stat-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: #004d99;
}

.datetime-stat-label {
    font-size: 0.8rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.25rem;
}

/* --- Controls Bar & Modes --- */
.datetime-controls-bar {
    background: #ffffff;
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.datetime-mode-selector {
    display: flex;
    overflow-x: auto;
    gap: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.datetime-mode-btn {
    padding: 0.6rem 1rem;
    border: none;
    background: transparent;
    border-bottom: 3px solid transparent;
    font-weight: bold;
    color: #64748b;
    cursor: pointer;
    white-space: nowrap;
    font-size: 0.95rem;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.datetime-mode-btn:hover {
    color: #004d99;
}

.datetime-mode-btn.active {
    color: #004d99;
    border-bottom-color: #004d99;
}

/* --- Cards & Components --- */
.datetime-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.datetime-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.datetime-card-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: #004d99;
}

.datetime-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
    margin-top: 1rem;
}

.datetime-grid-card {
    background: #f8fafc;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 1.15rem;
}

/* --- Buttons --- */
.datetime-btn {
    padding: 0.55rem 1.1rem;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.95rem;
}

.datetime-btn-primary {
    background: #004d99;
    color: #ffffff;
}

.datetime-btn-primary:hover {
    background: #003366;
}

.datetime-btn-outline {
    background: transparent;
    border: 1px solid #cbd5e1;
    color: #475569;
}

.datetime-btn-outline:hover {
    background: #f1f5f9;
}

.datetime-btn-danger {
    background: #ef4444;
    color: #ffffff;
}

.datetime-btn-danger:hover {
    background: #dc2626;
}

.datetime-quiz-option {
    padding: 0.85rem 1.15rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background: #ffffff;
    margin-bottom: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
    width: 100%;
    text-align: left;
}

.datetime-quiz-option:hover {
    border-color: #004d99;
    background: #f0f7ff;
}

.datetime-quiz-option.correct {
    border-color: #166534;
    background: #dcfce7;
    color: #166534;
    font-weight: bold;
}

.datetime-quiz-option.incorrect {
    border-color: #dc2626;
    background: #fee2e2;
    color: #991b1b;
}

.clock-display-box {
    background: #0f172a;
    color: #38bdf8;
    font-family: monospace;
    font-size: 2.8rem;
    font-weight: bold;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    display: inline-block;
    letter-spacing: 2px;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.5);
}

@media (max-width: 768px) {
    .datetime-page {
        padding: 0 0.5rem;
    }
    .datetime-intro-card, .datetime-controls-bar, .datetime-card {
        padding: 1.25rem;
    }
}