:root {
    --courses-bg: #f5f7fb;
    --courses-primary: #0050b3;
    --courses-secondary: #0dcaf0;
    --courses-surface: #ffffff;
    --courses-text: #192040;
    --courses-muted: rgba(25, 32, 64, 0.66);
    --courses-radius-lg: 28px;
    --courses-radius: 18px;
    --courses-shadow: 0 24px 45px rgba(10, 34, 71, 0.12);
}

.courses-hero {
    background: radial-gradient(circle at top left, rgba(13, 202, 240, 0.35), transparent 55%),
        linear-gradient(135deg, #0b1d42 0%, #1b3968 48%, #020b18 100%);
    color: #fff;
}

.courses-hero__title {
    font-size: clamp(2rem, 3vw + 1.5rem, 3.2rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: #fefefe;
}

.courses-hero__subtitle {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.88);
    max-width: 32rem;
}

.courses-hero__card {
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--courses-radius);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
    padding: 1.75rem 2rem;
    backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    color: rgba(255, 255, 255, 0.92);
}

.courses-hero__card p,
.courses-hero__card small,
.courses-hero__card .text-muted,
.courses-hero__card h3 {
    color: rgba(255, 255, 255, 0.9) !important;
}

.courses-hero__badge {
    align-self: flex-start;
    background: rgba(13, 202, 240, 0.25);
    border-radius: 999px;
    padding: 0.3rem 0.8rem;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.courses-section__title {
    color: var(--courses-text);
    font-weight: 700;
    font-size: clamp(1.6rem, 1.2vw + 1rem, 2rem);
}

.courses-section__subtitle {
    color: var(--courses-muted);
    font-size: 0.95rem;
}

.course-card-public {
    background: var(--courses-surface);
    border-radius: var(--courses-radius);
    box-shadow: var(--courses-shadow);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.course-card-public__header {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.course-card-public__tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    background: rgba(13, 202, 240, 0.1);
    color: var(--courses-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.course-card-public__title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--courses-text);
    margin: 0;
}

.course-card-public__meta {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    margin: 0;
}

.course-card-public__meta dt {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--courses-muted);
}

.course-card-public__meta dd {
    margin: 0;
    color: var(--courses-text);
    font-weight: 600;
    font-size: 0.95rem;
}

.course-card-public__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(13, 202, 240, 0.08);
    padding: 0.75rem 1rem;
    border-radius: var(--courses-radius);
    color: var(--courses-primary);
    font-weight: 600;
}

.course-card-public__footer-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.course-card-public__footer-value {
    font-size: 0.9rem;
}

.courses-empty {
    background: linear-gradient(135deg, rgba(0, 80, 179, 0.08), rgba(13, 202, 240, 0.12));
    border-radius: var(--courses-radius-lg);
    padding: 3rem 1.5rem;
    border: 1px dashed rgba(0, 80, 179, 0.25);
}

.courses-empty i {
    font-size: 2.5rem;
    color: var(--courses-primary);
}

@media (max-width: 575.98px) {
    .courses-hero__card {
        padding: 1.5rem;
    }

    .course-card-public {
        padding: 1.4rem;
    }
}