:root {
    --primary: #0A1F44;
    --accent: #00CFCF;
    --bg: #F5F7FA;
    --card-bg: #FFFFFF;
    --text: #1F2937;
    --muted: #6B7280;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== HEADER ===== */

.header {
    background: var(--primary);
    color: #ffffff;
    text-align: center;
    padding: 4rem 1rem 4.5rem;
}

.logo {
    max-height: 46px;
    margin-bottom: 1.25rem;
}

.header h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.header p {
    color: #cbd5e1;
    font-size: 1.05rem;
}

/* ===== CONTAINER ===== */

.container {
    flex: 1;
    max-width: 1000px;
    margin: 0 auto;
    padding: 3.5rem 1.5rem 4rem;
}

/* ===== INTRO ===== */

.intro {
    max-width: 720px;
    margin: 0 auto 4.5rem;
}

.intro h2 {
    font-size: 1.45rem;
    margin-bottom: 0.75rem;
}

.intro p {
    line-height: 1.6;
}

.intro-muted {
    margin-top: 0.6rem;
    color: var(--muted);
}

/* ===== PORTAL CARDS ===== */

.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2.5rem;
}

.portal-card {
    background: var(--card-bg);
    border-radius: 14px;
    padding: 2.25rem;
    text-decoration: none;
    color: inherit;
    border-left: 4px solid var(--accent);
    box-shadow: 0 12px 30px rgba(0,0,0,0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.portal-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 45px rgba(0,0,0,0.08);
}

.portal-card.primary {
    border-left-color: var(--primary);
}

.portal-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.6rem;
}

.portal-card p {
    color: var(--muted);
    line-height: 1.6;
}

.portal-card .cta {
    display: inline-block;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--primary);
}

/* ===== PAYMENT NOTE ===== */

.payment-note {
    margin-top: 3.5rem;
    text-align: center;
}

.payment-note p {
    color: var(--muted);
    line-height: 1.5;
}

.payment-link {
    display: inline-block;
    margin-top: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
}

.payment-muted {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--muted);
}

/* ===== HELP BOX ===== */

.help-box {
    margin-top: 3rem;
    padding: 1.75rem;
    background: #ffffff;
    border-radius: 14px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.help-box h3 {
    margin-bottom: 0.75rem;
}

.help-box p {
    color: var(--muted);
    margin-bottom: 1.25rem;
}

.help-button {
    display: inline-block;
    background: var(--primary);
    color: #ffffff;
    padding: 0.75rem 1.6rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}

/* ===== FOOTER ===== */

.footer {
    text-align: center;
    padding: 2rem 1.5rem;
    font-size: 0.85rem;
    color: var(--muted);
}