:root {
    --bg: #f5f6f8;
    --card: #ffffff;
    --border: #e1e4e8;
    --text: #1f2328;
    --muted: #6a737d;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #1a7f37;
    --error: #cf222e;
    --radius: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
}

.topbar .brand {
    font-weight: 700;
    font-size: 18px;
    color: var(--text);
    text-decoration: none;
}

.topbar nav { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.topbar nav a { color: var(--primary); text-decoration: none; }
.user-email { color: var(--muted); }

.container { max-width: 1100px; margin: 0 auto; padding: 24px; }

.login-box {
    max-width: 360px;
    margin: 60px auto;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}

.login-box h1 { font-size: 20px; margin: 0 0 16px; }

form label {
    display: block;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 14px;
}

form input, form select {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
}

button, .btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
}

button:hover, .btn:hover { background: var(--primary-hover); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-secondary { background: #eef1f4; color: var(--text); }
.btn-secondary:hover { background: #e1e4e8; }

.alert {
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 16px;
}
.alert-error { background: #ffebe9; color: var(--error); border: 1px solid #ffc1bc; }
.alert-success { background: #dafbe1; color: var(--success); border: 1px solid #aceebb; }

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}
.page-header h1 { font-size: 20px; margin: 0; }

.filters { display: flex; gap: 8px; margin-bottom: 16px; }
.filters a {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    text-decoration: none;
    color: var(--muted);
    border: 1px solid var(--border);
    background: var(--card);
}
.filters a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

th, td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

th { background: #fafbfc; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f9fafb; }

.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}
.badge-new { background: #ddf4ff; color: #0969da; }
.badge-awb_generated { background: #fff8c5; color: #9a6700; }
.badge-shipped { background: #dafbe1; color: var(--success); }
.badge-cancelled { background: #ffebe9; color: var(--error); }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 16px;
}
.card h2 { font-size: 15px; margin: 0 0 12px; }

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.kv { font-size: 14px; margin-bottom: 8px; }
.kv .k { color: var(--muted); margin-right: 6px; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }

.back-link { display: inline-block; margin-bottom: 12px; color: var(--muted); text-decoration: none; font-size: 13px; }