:root {
    --brand-navy: #1F3864;
    --brand-gold: #B8860B;
}

body {
    background-color: #f4f6f9;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
}

.app-header {
    background: linear-gradient(135deg, var(--brand-navy), #2c4d80);
    color: #fff;
}

.app-header-tag {
    color: #d8e0f0;
    letter-spacing: .05em;
}

.card {
    border-radius: 14px;
}

.btn-primary {
    background-color: var(--brand-navy);
    border-color: var(--brand-navy);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #16294a;
    border-color: #16294a;
}

.success-check {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: #e7f6ec;
    color: #1f9d55;
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

#photoPreview {
    max-width: 140px;
    max-height: 140px;
    object-fit: cover;
}

.table-photo {
    width: 42px;
    height: 42px;
    object-fit: cover;
    border-radius: 50%;
}

.admin-sidebar {
    min-height: 100vh;
    background-color: var(--brand-navy);
}

.admin-sidebar .nav-link {
    color: #d8e0f0;
}

.admin-sidebar .nav-link.active,
.admin-sidebar .nav-link:hover {
    color: #fff;
    font-weight: 600;
}

.stat-card {
    border-radius: 14px;
    border: none;
}