:root {
    --white: #ffffff;
    --bg: #f8fafc;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --accent: #0d9488;
    --accent-dark: #0f766e;
    --accent-light: #ccfbf1;
    --danger: #dc2626;
    --success: #16a34a;
    --sidebar-w: 240px;
    --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    font-size: 15px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }

.portal-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-w);
    background: var(--text);
    color: #e2e8f0;
    padding: 24px 0;
    flex-shrink: 0;
}

.sidebar-brand {
    padding: 0 20px 24px;
    font-weight: 700;
    font-size: 1.1rem;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 16px;
}

.sidebar-brand small {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: #94a3b8;
    margin-top: 4px;
}

.sidebar nav a {
    display: block;
    padding: 10px 20px;
    color: #cbd5e1;
    font-weight: 500;
    font-size: 0.9375rem;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    background: rgba(13, 148, 136, 0.25);
    color: #fff;
}

.sidebar .logout {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.main {
    flex: 1;
    padding: 32px 40px;
    max-width: 960px;
}

.main h1 { font-size: 1.5rem; margin-bottom: 8px; }
.main .subtitle { color: var(--text-muted); margin-bottom: 24px; }

.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}

.card h2 { font-size: 1.125rem; margin-bottom: 12px; }

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
}

.stat strong { display: block; font-size: 1.75rem; color: var(--accent-dark); }
.stat span { font-size: 0.875rem; color: var(--text-muted); }

.form-auth {
    max-width: 420px;
    margin: 48px auto;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.form-auth .auth-back {
    margin-bottom: 16px;
    font-size: 0.875rem;
}

.form-auth .auth-back a {
    color: var(--text-muted);
    font-weight: 500;
}

.form-auth .auth-back a:hover {
    color: var(--accent);
}

.form-auth .auth-switch {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.form-auth h1 { font-size: 1.35rem; margin-bottom: 8px; text-align: center; }
.form-auth .lead { text-align: center; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 24px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; font-size: 0.875rem; margin-bottom: 6px; }
.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
}
.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-outline { background: #fff; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-block { width: 100%; }

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}
.alert-error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-weight: 600; color: var(--text-muted); font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 0.03em; }
.license-key { font-family: ui-monospace, monospace; font-weight: 600; letter-spacing: 0.05em; }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-active { background: var(--accent-light); color: var(--accent-dark); }
.badge-expired { background: #fee2e2; color: var(--danger); }

.price-tag { font-size: 1.25rem; font-weight: 700; color: var(--accent-dark); margin: 12px 0; }
.text-muted { color: var(--text-muted); font-size: 0.875rem; }
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.gap-8 { display: flex; flex-wrap: wrap; gap: 8px; }

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.pricing-card { position: relative; }
.pricing-card-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent-light); }
.pricing-card .badge { margin-bottom: 12px; }
.pricing-card .btn { margin-top: 16px; }

@media (max-width: 768px) {
    .portal-shell { flex-direction: column; }
    .sidebar { width: 100%; }
    .main { padding: 24px 16px; }
}