:root {
    /* Prologin brand colors */
    --prologin-blue: #35479a;
    --prologin-blue-dark: #2a3878;
    --prologin-blue-light: #4a5fb8;
    --prologin-indigo: #6366f1;
    --prologin-indigo-light: #818cf8;

    /* Neutrals */
    --surface: #f8fafc;
    --surface-alt: #eef2f7;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-on-dark: #f1f5f9;
    --border-color: #e2e8f0;

    /* Semantic */
    --navbar-bg: #ffffff;
    --navbar-shadow: 0 1px 3px rgba(53, 71, 154, 0.08);
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --card-shadow-hover: 0 4px 12px rgba(53, 71, 154, 0.12);

    --bs-primary: var(--prologin-blue);
    --bs-primary-rgb: 53, 71, 154;
}

* {
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--text-primary);
    background-color: var(--surface);
}

/* Navbar */
.navbar-prologin {
    background-color: var(--cream);
}

.navbar-prologin .navbar-brand {
    font-weight: 700;
    font-size: 1.15rem;
    gap: 0.5rem;
    display: flex;
    align-items: center;
}

.navbar-partner {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-left: 0.5rem;
    padding-left: 0.75rem;
    border-left: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.navbar-partner a {
    display: inline-flex;
    align-items: center;
}

.navbar-prologin .nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: color 0.15s, background-color 0.15s;
}

.navbar-prologin .nav-link:hover,
.navbar-prologin .nav-link.active {
    color: var(--prologin-blue);
    background-color: rgba(53, 71, 154, 0.06);
}

/* Buttons */
.btn-prologin {
    background-color: var(--prologin-blue);
    border-color: var(--prologin-blue);
    color: #fff;
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
    transition: background-color 0.2s, transform 0.1s;
}

.btn-prologin:hover {
    background-color: var(--prologin-blue-dark);
    border-color: var(--prologin-blue-dark);
    color: #fff;
    transform: translateY(-1px);
}

.btn-outline-prologin {
    border: 2px solid var(--prologin-blue);
    color: var(--prologin-blue);
    font-weight: 600;
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
    background: transparent;
    transition: background-color 0.2s, color 0.2s, transform 0.1s;
}

.btn-outline-prologin:hover {
    background-color: var(--prologin-blue);
    color: #fff;
    transform: translateY(-1px);
}

/* Footer */
.footer {
    background-color: var(--prologin-blue);
    color: var(--text-on-dark);
    padding: 2.5rem 0;
    margin-top: 4rem;
}

.footer a {
    color: var(--prologin-indigo-light);
    text-decoration: none;
}

.footer a.nav-link:focus {
    color: var(--prologin-indigo-light) !important;
}

.footer a:hover {
    color: #fff;
}

.footer .footer-brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: #fff;
}

.footer .text-muted-light {
    color: rgba(255, 255, 255, 0.6);
}

/* Cards */
.card-feature {
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    background: #fff;
    box-shadow: var(--card-shadow);
    transition: box-shadow 0.2s, transform 0.2s;
    padding: 2rem 1.5rem;
    text-align: center;
    height: 100%;
}

.card-feature:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}

.card-feature .feature-icon {
    font-size: 2rem;
    color: var(--prologin-indigo);
    margin-bottom: 1rem;
    width: 3.5rem;
    height: 3.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(99, 102, 241, 0.1);
    border-radius: 0.75rem;
}

.card-feature h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-feature p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Section titles */
.section-title {
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}