body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f8fafc;
    color: #0f172a;
    margin: 0;
}
.container {
    max-width: 880px;
    margin: 40px auto;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.header {
    padding: 20px 24px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.content {
    padding: 24px;
}
h1 {
    font-size: 20px;
    margin: 0;
}
h2 {
    font-size: 18px;
    margin: 0 0 12px;
}
.btn {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 6px;
    border: 1px solid #334155;
    background: #334155;
    color: #fff;
    text-decoration: none;
    cursor: pointer;
}
.btn.secondary {
    background: #fff;
    color: #334155;
}
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    border-color: #cbd5e1;
    color: #64748b;
}
.grid {
    display: grid;
    gap: 12px;
}
.grid-2 {
    grid-template-columns: 1fr 1fr;
}
.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.field label {
    font-size: 14px;
    color: #475569;
}
.field input {
    padding: 10px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
}
.password-field {
    position: relative;
    display: flex;
    align-items: center;
}
.password-field input {
    width: 100%;
    padding-right: 40px;
}
.password-toggle {
    position: absolute;
    right: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.password-toggle-eye {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    border: 2px solid #64748b;
    position: relative;
}
.password-toggle-eye::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: #64748b;
    transform: translate(-50%, -50%);
}
.password-toggle-eye.is-hidden::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    border-radius: 999px;
    border-top: 2px solid transparent;
    border-left: 2px solid transparent;
    border-right: 2px solid #64748b;
    border-bottom: 2px solid #64748b;
    transform: rotate(-35deg);
}
.list {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
}
.list-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid #e2e8f0;
}
.list-item:last-child {
    border-bottom: none;
}
.ok {
    color: #16a34a;
}
.fail {
    color: #dc2626;
}
.alert {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 12px;
}
.alert.success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}
.alert.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}
.footer {
    padding: 16px 24px;
    border-top: 1px solid #e2e8f0;
    background: #f8fafc;
    display: flex;
    justify-content: space-between;
}
.mt-12 {
    margin-top: 12px;
}
.mt-20 {
    margin-top: 20px;
}
.ml-12 {
    margin-left: 12px;
}