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

:root {
    --bg: #f4f6f9;
    --white: #ffffff;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --text: #1e293b;
    --muted: #64748b;
    --border: #e2e8f0;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.1);
}

body { font-family: system-ui, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.container { max-width: 960px; margin: 0 auto; padding: 0 16px; }
.topbar { background: var(--white); border-bottom: 1px solid var(--border); padding: 12px 0; }
.topbar .inner { display: flex; align-items: center; justify-content: space-between; }
.topbar .logo { font-weight: 700; font-size: 18px; color: var(--primary); }
.topbar nav a { margin-left: 16px; color: var(--muted); font-size: 14px; }
.topbar nav a:hover { color: var(--primary); }

.page { padding: 32px 0; }
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 24px; }

/* Card */
.card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card + .card { margin-top: 16px; }
.card-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 15px; background: var(--white); transition: border-color .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px; border-radius: var(--radius); border: none; font-size: 14px; font-weight: 600; cursor: pointer; transition: background .2s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); text-decoration: none; }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-full { width: 100%; justify-content: center; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 14px; }
.alert-error { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
th { font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; background: var(--bg); }
tr:hover td { background: #f8fafc; }

/* Badge plano */
.badge { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.badge-free   { background: #e2e8f0; color: #475569; }
.badge-vip    { background: #dbeafe; color: #1d4ed8; }
.badge-master { background: #fef9c3; color: #854d0e; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(3, 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-num { font-size: 28px; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* Login page */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.login-box { width: 100%; max-width: 400px; }
.login-box .logo { text-align: center; font-size: 24px; font-weight: 800; color: var(--primary); margin-bottom: 24px; }

/* Progress bar */
.progress-bar { background: var(--border); border-radius: 99px; height: 8px; margin-top: 8px; }
.progress-fill { background: var(--primary); height: 100%; border-radius: 99px; transition: width .3s; }

/* Planos */
.planos-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.plano-card { background: var(--white); border: 2px solid var(--border); border-radius: var(--radius); padding: 24px; text-align: center; }
.plano-card.ativo { border-color: var(--primary); }
.plano-nome { font-size: 18px; font-weight: 700; }
.plano-preco { font-size: 28px; font-weight: 800; color: var(--primary); margin: 8px 0; }
.plano-preco small { font-size: 14px; font-weight: 400; color: var(--muted); }
.plano-limite { color: var(--muted); font-size: 14px; margin-bottom: 16px; }

@media (max-width: 600px) {
    .stats { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .planos-grid { grid-template-columns: 1fr; }
}