body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    background: #f5f7fa;
    color: #222;
}

.container {
    width: 1180px;
    max-width: calc(100% - 40px);
    margin: 0 auto;
}

.topbar {
    background: #ffffff;
    border-bottom: 1px solid #e3e7ee;
    padding: 16px 0;
}

.brand {
    font-size: 24px;
    font-weight: 700;
    color: #3478f6;
    margin-bottom: 12px;
}

.nav a {
    margin-right: 18px;
    text-decoration: none;
    color: #333;
    font-weight: 600;
}

.main-content {
    padding: 30px 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.card {
    background: #fff;
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.05);
}

    .card h3 {
        margin-top: 0;
        font-size: 18px;
    }

.stat {
    font-size: 34px;
    font-weight: 700;
    color: #3478f6;
}

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

.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0,0,0,0.05);
}

    .table th,
    .table td {
        padding: 14px;
        border-bottom: 1px solid #edf0f4;
        text-align: left;
        vertical-align: top;
    }

    .table th {
        background: #f8fafc;
        font-weight: 700;
    }

.btn {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 10px;
    background: #fff;
    color: #333;
    border: 1px solid #d5dbe3;
    text-decoration: none;
    cursor: pointer;
}

.btn-primary {
    background: #3478f6;
    color: #fff;
    border: 1px solid #3478f6;
}

.btn-danger {
    background: #d9534f;
    color: #fff;
    border: 1px solid #d9534f;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    background: #fff;
    padding: 22px;
    border-radius: 16px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

.input {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    border: 1px solid #d7dde6;
    border-radius: 10px;
    margin-top: 6px;
}

.validation {
    color: #c0392b;
    font-size: 13px;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 28px;
}

.actions {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.detail-box,
.success-box,
.warning-box {
    background: #fff;
    border-radius: 14px;
    padding: 18px;
    box-shadow: 0 3px 12px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

.success-box {
    color: #1e7e34;
    font-weight: 600;
}
.page-card {
    max-width: 980px;
    margin: 36px auto;
    background: #fff;
    border-radius: 18px;
    padding: 32px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, .08);
}

.page-title h1 {
    margin: 0;
    font-size: 32px;
    font-weight: 700;
}

.page-title p {
    margin-top: 8px;
    color: #64748b;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 26px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

    .form-field label {
        font-weight: 600;
        color: #334155;
    }

.input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    font-size: 15px;
    background: #fff;
}

    .input:focus {
        outline: none;
        border-color: #2563eb;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
    }

.checkbox-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px;
}

    .checkbox-card label {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .checkbox-card small {
        color: #64748b;
    }

.actions {
    margin-top: 28px;
    display: flex;
    gap: 12px;
}
.option-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.option-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px 16px;
    font-weight: 600;
    color: #334155;
}

    .option-card input {
        width: 18px;
        height: 18px;
    }

.danger-option {
    background: #fff7f7;
    border-color: #fecaca;
}

.simulation-option {
    background: #f5f3ff;
    border-color: #ddd6fe;
}

.page-card h3 {
    margin-top: 24px;
    margin-bottom: 12px;
    font-size: 20px;
    color: #1e293b;
}
.detail-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 24px;
}

.detail-item {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px 16px;
}

    .detail-item span {
        display: block;
        color: #64748b;
        font-size: 13px;
        margin-bottom: 4px;
    }

    .detail-item strong {
        color: #0f172a;
        font-size: 15px;
    }

.modern-table td,
.modern-table th {
    vertical-align: middle;
}

.badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-primary {
    background: #dbeafe;
    color: #1d4ed8;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-muted {
    background: #e5e7eb;
    color: #374151;
}

.small-muted {
    color: #64748b;
    font-size: 12px;
    margin-top: 5px;
}

.btn-success {
    background: #16a34a;
    color: white;
    border: none;
}

    .btn-success:hover {
        background: #15803d;
        color: white;
    }

.success-box {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
    padding: 12px 16px;
    border-radius: 10px;
}

.warning-box {
    background: #fff7ed;
    color: #9a3412;
    border: 1px solid #fed7aa;
    padding: 12px 16px;
    border-radius: 10px;
    margin: 16px 0;
}

@media (max-width: 900px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }
}
.form-field small {
    color: #64748b;
    margin-top: 4px;
}

@media (max-width: 800px) {
    .form-grid,
    .option-grid {
        grid-template-columns: 1fr;
    }
}
.warning-box {
    color: #8a6d3b;
    font-weight: 600;
}