:root {
    --blue-900: #0b3a82;
    --blue-700: #1656c9;
    --blue-600: #2563eb;
    --blue-500: #3b82f6;
    --blue-100: #e8f0fe;
    --blue-50: #f4f8ff;
    --white: #ffffff;
    --green: #16a34a;
    --green-bg: #e7f7ed;
    --green-border: #bbead0;
    --orange: #e0740f;
    --orange-bg: #fff2e3;
    --orange-border: #f6d2a3;
    --gray-500: #6b7280;
    --gray-300: #d7deea;
    --gray-100: #f1f4fa;
    --shadow: 0 4px 18px rgba(20, 60, 130, 0.08);
    --radius: 14px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: linear-gradient(180deg, var(--blue-50) 0%, var(--white) 320px, var(--white) 100%);
    color: #1c2b3a;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Helvetica, Arial, sans-serif;
    min-height: 100%;
}

/* ---------- topbar ---------- */
.topbar {
    background: linear-gradient(120deg, var(--blue-900), var(--blue-600));
    color: var(--white);
    padding: 28px 16px 34px;
}

.topbar-inner {
    max-width: 1080px;
    margin: 0 auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #7dd3fc;
    box-shadow: 0 0 0 5px rgba(125, 211, 252, 0.25);
}

.brand h1 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.subtitle {
    margin: 10px 0 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
}

/* ---------- layout ---------- */
.container {
    max-width: 1080px;
    margin: -20px auto 40px;
    padding: 0 16px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.card {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.card-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--blue-900);
    margin-bottom: 8px;
}

textarea#domainInput {
    width: 100%;
    min-height: 120px;
    resize: vertical;
    border: 1px solid var(--gray-300);
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 14px;
    line-height: 1.6;
    font-family: inherit;
    background: var(--blue-50);
    color: #16233a;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}

textarea#domainInput:focus {
    border-color: var(--blue-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    background: var(--white);
}

/* ---------- toolbar ---------- */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 14px;
}

.toolbar-left, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.concurrency-label {
    font-size: 13px;
    color: var(--gray-500);
}

select#concurrency {
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 13px;
    background: var(--white);
    color: #1c2b3a;
}

/* ---------- buttons ---------- */
.btn {
    appearance: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 18px;
    border-radius: 9px;
    transition: transform .08s ease, box-shadow .15s ease, opacity .15s ease, background .15s ease;
}

.btn:active {
    transform: translateY(1px) scale(0.99);
}

.btn:disabled {
    opacity: .5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(120deg, var(--blue-600), var(--blue-700));
    color: var(--white);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.30);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.38);
}

.btn-outline {
    background: var(--white);
    color: var(--blue-700);
    border: 1px solid var(--blue-500);
}

.btn-outline:hover:not(:disabled) {
    background: var(--blue-100);
}

.btn-ghost {
    background: transparent;
    color: var(--gray-500);
    border: 1px solid var(--gray-300);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--gray-100);
}

.btn-sm {
    padding: 7px 12px;
    font-size: 12.5px;
    border-radius: 8px;
}

.btn-normal-outline {
    background: var(--green-bg);
    color: var(--green);
    border: 1px solid var(--green-border);
}

.btn-normal-outline:hover {
    background: #d9f2e3;
}

.btn-abnormal-outline {
    background: var(--orange-bg);
    color: var(--orange);
    border: 1px solid var(--orange-border);
}

.btn-abnormal-outline:hover {
    background: #ffe8cc;
}

.btn-icon {
    background: var(--gray-100);
    color: #33465e;
    border: 1px solid var(--gray-300);
    padding: 6px 10px;
    font-size: 12.5px;
    border-radius: 7px;
}

.btn-icon:hover {
    background: var(--blue-100);
    border-color: var(--blue-500);
    color: var(--blue-700);
}

/* ---------- stats ---------- */
.stats-card {
    display: flex;
    align-items: center;
    gap: 26px;
    flex-wrap: wrap;
    padding: 16px 22px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 58px;
}

.stat-num {
    font-size: 20px;
    font-weight: 700;
    color: var(--blue-900);
}

.stat-label {
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 2px;
}

.stat-normal .stat-num {
    color: var(--green);
}

.stat-abnormal .stat-num {
    color: var(--orange);
}

.stat-actions {
    margin-left: auto;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ---------- table ---------- */
.table-card {
    padding: 0;
    overflow: hidden;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.result-table thead th {
    background: var(--blue-50);
    color: var(--blue-900);
    text-align: left;
    font-weight: 700;
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-300);
    white-space: nowrap;
}

.result-table tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: top;
}

.result-table tbody tr:last-child td {
    border-bottom: none;
}

.result-table tbody tr:hover {
    background: #fbfdff;
}

.col-domain {
    width: 22%;
}

.col-status {
    width: 12%;
}

.col-ops {
    width: 16%;
}

.domain-name {
    font-weight: 600;
    color: #16233a;
    word-break: break-all;
}

.domain-url {
    display: block;
    font-size: 11.5px;
    color: var(--gray-500);
    margin-top: 2px;
    word-break: break-all;
}

/* status badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 700;
    white-space: nowrap;
}

.badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.badge-normal {
    background: var(--green-bg);
    color: var(--green);
    border: 1px solid var(--green-border);
}

.badge-normal .badge-dot {
    background: var(--green);
}

.badge-abnormal {
    background: var(--orange-bg);
    color: var(--orange);
    border: 1px solid var(--orange-border);
}

.badge-abnormal .badge-dot {
    background: var(--orange);
}

.badge-pending {
    background: var(--gray-100);
    color: var(--gray-500);
    border: 1px solid var(--gray-300);
}

.badge-pending .badge-dot {
    background: var(--gray-500);
    animation: pulse 1.1s infinite ease-in-out;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .25; }
}

/* platform detail chips */
.platform-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 7px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: default;
}

.chip-normal {
    background: var(--green-bg);
    color: var(--green);
    border-color: var(--green-border);
}

.chip-risk, .chip-error {
    background: var(--orange-bg);
    color: var(--orange);
    border-color: var(--orange-border);
}

.chip-pending {
    background: var(--gray-100);
    color: var(--gray-500);
    border-color: var(--gray-300);
}

.ops {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ---------- footer ---------- */
.footer {
    text-align: center;
    color: var(--gray-500);
    font-size: 12px;
    padding: 10px 16px 30px;
}

/* ---------- toast ---------- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 34px;
    transform: translateX(-50%) translateY(20px);
    background: rgba(17, 32, 56, 0.92);
    color: #fff;
    padding: 10px 22px;
    border-radius: 999px;
    font-size: 13.5px;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
    z-index: 999;
    white-space: nowrap;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ---------- responsive ---------- */
@media (max-width: 680px) {
    .result-table, .result-table thead, .result-table tbody, .result-table th, .result-table td, .result-table tr {
        display: block;
    }
    .result-table thead {
        display: none;
    }
    .result-table tbody tr {
        padding: 12px 14px;
        border-bottom: 8px solid var(--blue-50);
    }
    .result-table tbody td {
        border-bottom: none;
        padding: 6px 0;
    }
    .col-domain::before,
    .col-status::before,
    .col-detail::before,
    .col-ops::before {
        content: attr(data-label);
        display: block;
        font-size: 11px;
        color: var(--gray-500);
        margin-bottom: 4px;
        font-weight: 700;
    }
    .stats-card {
        gap: 16px 24px;
    }
    .stat-actions {
        margin-left: 0;
        width: 100%;
    }
}