/* EduTest DGU — стили учебной системы колледжа */

:root {
    --primary-dark: #1a3a5c;
    --primary-blue: #2c5282;
    --accent-blue: #4299e1;
    --light-gray: #f7fafc;
    --border-gray: #e2e8f0;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--light-gray);
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

main {
    flex: 1;
}

/* Навигация */
.bg-primary-custom {
    background-color: var(--primary-dark) !important;
}

.text-primary-custom {
    color: var(--primary-dark) !important;
}

.navbar-brand {
    font-size: 1.25rem;
}

/* Главная страница */
.hero-section {
    background: linear-gradient(135deg, #fff 0%, #ebf8ff 100%);
    border-radius: 1rem;
    padding: 3rem 2rem !important;
}

.hero-badge {
    display: inline-block;
    background: var(--primary-dark);
    color: #fff;
    padding: 0.35rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: #ebf8ff;
    color: var(--primary-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* Карточки тем */
.topic-card {
    transition: transform 0.2s, box-shadow 0.2s;
}

.topic-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(26, 58, 92, 0.1) !important;
}

.topic-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: var(--primary-dark);
    color: #fff;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.875rem;
    margin-right: 0.75rem;
}

.topic-item .topic-number {
    margin-right: 1rem;
}

/* Статистика */
.stat-card {
    background: #fff;
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-gray);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.stat-label {
    color: #718096;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Кнопки */
.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

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

.btn-outline-primary {
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline-primary:hover {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

/* Результат теста */
.result-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 6px solid;
}

.result-success {
    border-color: #48bb78;
    background: #f0fff4;
}

.result-warning {
    border-color: #ed8936;
    background: #fffaf0;
}

.result-danger {
    border-color: #fc8181;
    background: #fff5f5;
}

.result-percent {
    font-size: 2rem;
    font-weight: 700;
}

.result-success .result-percent { color: #276749; }
.result-warning .result-percent { color: #c05621; }
.result-danger .result-percent { color: #c53030; }

/* Материалы */
.material-content {
    line-height: 1.8;
    font-size: 1.05rem;
}

/* Карточки */
.card {
    border-radius: 0.75rem;
}

.card-header {
    border-bottom: 1px solid var(--border-gray);
}

/* Футер */
.footer {
    margin-top: auto;
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 1rem !important;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .display-5 {
        font-size: 1.75rem;
    }
}