* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f4f5f7;
    color: #1a1a1a;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #1f2430;
    color: white;
    padding: 14px 32px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.navbar-brand { font-weight: 600; font-size: 18px; }
.navbar-links a { color: #cfd3dc; text-decoration: none; margin-left: 24px; font-size: 14px; }
.navbar-links a:hover { color: white; }
.navbar-links .logout { color: #ff9b9b; }

.container { max-width: 1100px; margin: 0 auto; padding: 32px 20px; }

h1 { font-size: 24px; margin-bottom: 20px; }

.page-header { display: flex; justify-content: space-between; align-items: center; }

.login-box {
    max-width: 360px;
    margin: 80px auto;
    background: white;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.login-box form { display: flex; flex-direction: column; gap: 6px; }
.login-box label { font-size: 13px; color: #666; margin-top: 8px; }
.login-box input {
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
}
.login-box button {
    margin-top: 20px;
    padding: 10px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
}
.alert-error {
    background: #fee2e2;
    color: #b91c1c;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 12px;
}

.stats { display: flex; gap: 16px; margin-bottom: 24px; }
.stat-card {
    background: white;
    padding: 18px 24px;
    border-radius: 10px;
    box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}
.stat-value { font-size: 26px; font-weight: 700; }
.stat-label { font-size: 13px; color: #777; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}
.data-table th, .data-table td {
    padding: 12px 16px;
    text-align: left;
    font-size: 14px;
    border-bottom: 1px solid #eee;
}
.data-table th { background: #fafafa; color: #666; font-weight: 600; }

.badge-active { color: #16a34a; }
.badge-blocked { color: #dc2626; }
.badge-status { padding: 3px 10px; border-radius: 20px; font-size: 12px; }
.badge-pending { background: #fef3c7; color: #92400e; }
.badge-sending { background: #dbeafe; color: #1d4ed8; }
.badge-sent { background: #dcfce7; color: #166534; }
.badge-cancelled { background: #f3f4f6; color: #6b7280; }

.btn-primary {
    background: #2563eb;
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
}
.btn-danger-small {
    background: #fee2e2;
    color: #b91c1c;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
}

.campaign-form {
    background: white;
    padding: 28px;
    border-radius: 10px;
    max-width: 560px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}
.campaign-form label { font-size: 13px; color: #666; margin-top: 12px; }
.campaign-form input, .campaign-form textarea, .campaign-form select {
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}
.form-row { display: flex; gap: 16px; }
.form-row > div { flex: 1; }
.hint { font-size: 12px; color: #999; margin-top: 4px; display: none; }
.campaign-form button {
    margin-top: 24px;
    padding: 12px;
    background: #16a34a;
}

.btn-edit-small {
    background: #dbeafe;
    color: #1d4ed8;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    text-decoration: none;
    margin-right: 6px;
    display: inline-block;
}