:root {
    --ctiosu-green: #006b3c;
    --ctiosu-gold: #d4af37;
    --ctiosu-dark: #10231a;
    --ctiosu-light: #f5f8f6;
}

body {
    margin: 0;
    background: var(--ctiosu-light);
    color: #1f2937;
    font-family: Arial, Helvetica, sans-serif;
}

a { text-decoration: none; }

.ctiosu-navbar {
    background: linear-gradient(90deg, #004d2a, var(--ctiosu-green));
    box-shadow: 0 2px 12px rgba(0,0,0,.12);
}

.ctiosu-brand-logo { width: 48px; height: 48px; object-fit: contain; }
.ctiosu-brand { color: #fff; font-weight: 800; letter-spacing: .5px; }
.ctiosu-nav-link { color: rgba(255,255,255,.9); font-weight: 600; }
.ctiosu-nav-link:hover { color: var(--ctiosu-gold); }

.btn-ctiosu {
    background: var(--ctiosu-green);
    border-color: var(--ctiosu-green);
    color: #fff;
}
.btn-ctiosu:hover { background: #00562f; border-color: #00562f; color: #fff; }
.btn-gold { background: var(--ctiosu-gold); border-color: var(--ctiosu-gold); color: #111; font-weight: 700; }

.auth-page {
    min-height: calc(100vh - 82px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 16px;
    background: linear-gradient(135deg, #f5f8f6 0%, #eaf3ee 100%);
}

.auth-card {
    width: 100%;
    max-width: 720px;
    border: 0;
    border-radius: 22px;
    box-shadow: 0 18px 50px rgba(0, 66, 39, .13);
    overflow: hidden;
}

.auth-card .card-header {
    background: var(--ctiosu-green);
    color: white;
    padding: 28px 32px;
    border: 0;
}

.auth-card .card-body { padding: 32px; }
.form-control, .form-select { min-height: 48px; border-radius: 10px; }
.form-control:focus, .form-select:focus { border-color: var(--ctiosu-green); box-shadow: 0 0 0 .2rem rgba(0,107,60,.12); }

.dashboard-hero {
    background: linear-gradient(135deg, #006b3c, #0b8f54);
    color: white;
    border-radius: 22px;
    padding: 36px;
    box-shadow: 0 14px 35px rgba(0,107,60,.18);
}

.portal-card {
    border: 0;
    border-radius: 18px;
    box-shadow: 0 8px 25px rgba(0,0,0,.07);
}

.product-card {
    height: 100%;
    border: 0;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,.08);
    transition: transform .2s ease, box-shadow .2s ease;
}
.product-card:hover { transform: translateY(-4px); box-shadow: 0 14px 35px rgba(0,0,0,.12); }
.product-image {
    height: 210px;
    background: linear-gradient(135deg, #006b3c, #d4af37);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 54px;
}

.price { color: var(--ctiosu-green); font-size: 1.35rem; font-weight: 800; }

footer { margin-top: auto; }

@media (max-width: 768px) {
    .auth-page { padding: 24px 12px; }
    .auth-card .card-body { padding: 22px; }
    .dashboard-hero { padding: 26px 20px; }
}