:root {
    --primary-color: #0052cc;
    --primary-dark: #003c99;
    --accent-color: #00b894;
    --bg-soft: #f5f7fb;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg-soft);
}

/* Navbar */
.top-navbar {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary-color));
    color: #fff;
}

.navbar-brand {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: rgba(255,255,255,0.1);
    font-weight: 700;
    margin-right: 6px;
}

.logo-text {
    font-size: 1.1rem;
    letter-spacing: 0.06em;
}

.slogan {
    font-size: 0.7rem;
    opacity: 0.85;
}

/* CTA Button */
.btn-cta {
    background: var(--accent-color);
    border-radius: 999px;
    border: none;
    color: #fff;
    font-weight: 600;
    padding-inline: 1.1rem;
}

.btn-cta:hover {
    background: #01906f;
    color: #fff;
}

/* Hero */
.hero-section {
    padding: 5rem 0 3rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8rem;
    background: rgba(0, 184, 148, 0.05);
    border: 1px solid rgba(0, 184, 148, 0.2);
    color: var(--accent-color);
}

.hero-title {
    font-size: clamp(2rem, 3vw, 2.6rem);
    font-weight: 700;
}

.hero-highlight {
    color: var(--accent-color);
}

.hero-card {
    background: #fff;
    border-radius: 1.5rem;
    box-shadow: 0 18px 50px rgba(15, 35, 95, 0.12);
    border: none;
}

/* Course Cards */
.course-card {
    border-radius: 1rem;
    background: #fff;
    border: 1px solid #e2e6f0;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.course-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: 0 14px 30px rgba(15, 35, 95, 0.16);
}

.course-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    background: rgba(0, 82, 204, 0.06);
    color: var(--primary-dark);
}

/* Section heading */
.section-title {
    font-size: 1.7rem;
    font-weight: 700;
}

/* Forms */
.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 82, 204, 0.2);
}

/* Footer */
.footer {
    background: #020617;
    color: #e5e7eb;
}

.footer a {
    color: #a5b4fc;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.footer-top {
    border-bottom: 1px solid rgba(148, 163, 184, 0.3);
}

.footer-bottom {
    background: #020617;
    border-top: 1px solid rgba(148, 163, 184, 0.3);
}

/* Page wrapper */
.page-wrapper {
    min-height: 65vh;
}