:root {
    --primary: #1e3a8a;
    --primary-hover: #1d4ed8;
    --secondary: #0f172a;
    --accent: #2563eb;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --bg-light: #f8fafc;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --radius: 10px;
    --shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
body { background: var(--bg-light); color: var(--text-main); min-height: 100vh; display: flex; flex-direction: column; }

/* Navigation */
.header { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 1rem 1.5rem; display: flex; justify-content: space-between; align-items: center; }
.brand-title { font-size: 1.25rem; font-weight: 800; color: var(--primary); text-decoration: none; display: flex; align-items: center; gap: 0.5rem; }
.nav-links { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }
.nav-link { text-decoration: none; color: var(--text-muted); font-weight: 600; font-size: 0.95rem; padding: 0.5rem 0.85rem; border-radius: var(--radius); transition: all 0.2s; }
.nav-link:hover { color: var(--primary); background: #eff6ff; }
.nav-link.btn-cta { background: var(--primary); color: white; }
.nav-link.btn-cta:hover { background: var(--primary-hover); }

/* Main Container */
.main-wrapper { flex: 1; max-width: 1200px; margin: 2rem auto; padding: 0 1.5rem; width: 100%; }
.card { background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 2rem; margin-bottom: 1.5rem; }

/* Forms & Inputs */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; font-weight: 600; color: var(--secondary); }
.form-input, .form-select { width: 100%; padding: 0.75rem 1rem; border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem; background: #fff; transition: border 0.2s; }
.form-input:focus, .form-select:focus { outline: none; border-color: var(--accent); }
.btn { display: inline-flex; justify-content: center; align-items: center; padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 700; font-size: 0.95rem; cursor: pointer; border: none; transition: all 0.2s; text-decoration: none; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--secondary); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-warning { background: var(--warning); color: white; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.85rem; border-radius: 6px; }

/* Data Tables */
.table-responsive { width: 100%; overflow-x: auto; margin-top: 1rem; }
.data-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 0.9rem; }
.data-table th { background: #f1f5f9; padding: 0.75rem 1rem; font-weight: 700; border-bottom: 2px solid var(--border); }
.data-table td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.badge { display: inline-block; padding: 0.25rem 0.65rem; border-radius: 999px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; }
.badge-active { background: #dcfce7; color: var(--success); }
.badge-pending { background: #fef3c7; color: var(--warning); }
.badge-suspended { background: #fee2e2; color: var(--danger); }

/* Navigation Tabs */
.tabs-header { display: flex; border-bottom: 2px solid var(--border); gap: 0.5rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.tab-btn { padding: 0.75rem 1.25rem; font-weight: 700; color: var(--text-muted); background: none; border: none; cursor: pointer; border-bottom: 3px solid transparent; margin-bottom: -2px; }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* Popup Modal Engine (Strict Note 1 Compliance) */
.jws-modal-backdrop {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(15, 23, 42, 0.7); backdrop-filter: blur(4px);
    display: none; justify-content: center; align-items: center; z-index: 9999;
    opacity: 0; transition: opacity 0.2s ease-in-out;
}
.jws-modal-backdrop.active { display: flex; opacity: 1; }
.jws-modal-box {
    background: var(--surface); border-radius: 14px; width: 90%; max-width: 480px;
    padding: 2rem; box-shadow: 0 20px 40px rgba(0,0,0,0.3); text-align: center;
    transform: scale(0.95); transition: transform 0.2s ease-in-out;
}
.jws-modal-backdrop.active .jws-modal-box { transform: scale(1); }
.jws-modal-icon { width: 56px; height: 56px; border-radius: 50%; margin: 0 auto 1rem; display: flex; align-items: center; justify-content: center; font-size: 1.75rem; font-weight: bold; }
.jws-modal-icon.success { background: #dcfce7; color: var(--success); }
.jws-modal-icon.error { background: #fee2e2; color: var(--danger); }
.jws-modal-icon.warning { background: #fef3c7; color: var(--warning); }
.jws-modal-title { font-size: 1.25rem; font-weight: 800; color: var(--secondary); margin-bottom: 0.5rem; }
.jws-modal-message { font-size: 0.95rem; color: var(--text-muted); line-height: 1.5; margin-bottom: 1.5rem; }
.jws-modal-actions { display: flex; gap: 0.75rem; justify-content: center; }

/* Footer */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 1.5rem; text-align: center; font-size: 0.85rem; color: var(--text-muted); margin-top: auto; }
.footer-desktop { display: block; }
.footer-mobile { display: none; }

@media (max-width: 768px) {
    .footer-desktop { display: none; }
    .footer-mobile { display: block; }
    .nav-container { flex-direction: column; gap: 1rem; }
}