.mkl-sn-verify {
    max-width: 480px;
    margin: 0 auto;
    padding: 60px 20px 80px;
    min-height: calc(100vh - 610px);
    
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
}

.mkl-sn-header {
    text-align: center;
    margin-bottom: 40px;
}

.mkl-sn-logo {
    display: block;
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: #1a1a1a;
    margin-bottom: 20px;
}

.mkl-sn-header h1 {
    font-size: 22px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 8px;
}

.mkl-sn-subtitle {
    font-size: 14px;
    color: #888;
    margin: 0;
}

.mkl-sn-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mkl-sn-boxes {
    display: flex;
    gap: 10px;
}

.mkl-sn-box {
    flex: 1;
    height: 56px;
    border: 1.5px solid #ddd;
    border-radius: 10px;
    font-size: 20px;
    font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
    letter-spacing: 3px;
    text-align: center;
    color: #1a1a1a;
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
    padding: 0;
}

.mkl-sn-box:focus {
    border-color: #0071e3;
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.mkl-sn-box::placeholder {
    font-size: 24px;
    letter-spacing: 2px;
    color: #ddd;
}

#mkl-sn-submit {
    height: 48px;
    border: none;
    border-radius: 10px;
    background: #0071e3;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: background 0.2s;
}

#mkl-sn-submit:hover:not(:disabled) {
    background: #0062c4;
}

#mkl-sn-submit:disabled {
    background: #a0c8f0;
    color: #fff;
    cursor: not-allowed;
}

.mkl-sn-result {
    margin-top: 32px;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
}

.mkl-sn-icon {
    display: block;
    margin-bottom: 12px;
}

.mkl-sn-result p {
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
    color: #1a1a1a;
}

.mkl-sn-success {
    background: #f0faf0;
    border: 1px solid #c6e6c6;
}


.mkl-sn-warning {
    background: #fff8f0;
    border: 1px solid #f0d8b0;
}


.mkl-sn-danger {
    background: #fdf0f0;
    border: 1px solid #f0c6c6;
}


.mkl-sn-muted {
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
}


.mkl-sn-cs-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 13px;
    color: #888;
    text-decoration: underline;
}

.mkl-sn-cs-link:hover {
    color: #1a1a1a;
}

/* SVG icon & draw animation */
.mkl-sn-icon svg {
    width: 52px;
    height: 52px;
}

.mkl-sn-svg-ring {
    stroke-dasharray: 145;
    stroke-dashoffset: 145;
    animation: mkl-sn-draw 0.5s ease forwards;
}

.mkl-sn-svg-path {
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    animation: mkl-sn-draw 0.35s ease 0.4s forwards;
}

.mkl-sn-svg-dot {
    opacity: 0;
    animation: mkl-sn-pop 0.2s ease 0.6s forwards;
}

@keyframes mkl-sn-draw {
    to { stroke-dashoffset: 0; }
}

@keyframes mkl-sn-pop {
    to { opacity: 1; }
}