:root {
    color-scheme: dark;
    --bg: #08111f;
    --panel: #0f1a2b;
    --panel-2: #132238;
    --panel-3: #091524;
    --border: #263750;
    --text: #eef5ff;
    --muted: #9db0c8;
    --accent: #6fd3ff;
    --good: #81e6a5;
    --warn: #ffd36b;
    --bad: #ff8290;
    --code: #07101c;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 15% 0, #142845 0, transparent 32rem),
        var(--bg);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    touch-action: manipulation;
}

.shell {
    width: min(1540px, 100%);
    margin: 0 auto;
    padding: 26px;
}

.hero {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 24px;
    align-items: end;
    margin-bottom: 20px;
}

.eyebrow {
    color: var(--accent);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .16em;
    text-transform: uppercase;
}

h1 {
    margin: 7px 0;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1;
    letter-spacing: -.04em;
}

.hero p {
    max-width: 850px;
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

.badge {
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--panel);
    padding: 11px 14px;
    color: var(--muted);
    white-space: nowrap;
}

.top-controls {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: end;
    margin-bottom: 18px;
}

.control-group {
    min-width: 0;
}

.control-label {
    display: block;
    margin-bottom: 7px;
    color: var(--muted);
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.segmented,
.tabs,
.task-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.segment,
.tab,
.task-tab,
.btn {
    min-height: 44px;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: var(--panel-2);
    padding: 10px 14px;
    color: var(--text);
    cursor: pointer;
}

.segment,
.tab,
.task-tab {
    color: var(--muted);
}

.segment.active,
.tab.active,
.task-tab.active,
.btn.primary {
    border-color: var(--accent);
    background: var(--accent);
    color: #04111c;
    font-weight: 800;
}

.btn.secondary {
    background: transparent;
}

.layout {
    display: grid;
    grid-template-columns: minmax(400px, .94fr) minmax(510px, 1.2fr);
    gap: 20px;
    align-items: start;
}

.card {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: rgba(15, 26, 43, .96);
}

.card-head {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: flex-start;
    padding: 17px 19px;
    border-bottom: 1px solid var(--border);
}

.card-head h2,
.card-head h3 {
    margin: 0;
    font-size: 1.05rem;
}

.card-head small {
    color: var(--muted);
}

.card-body {
    padding: 19px;
}

.section {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.section:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}

.section-title {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: baseline;
    margin-bottom: 12px;
}

.section-title strong {
    font-size: .92rem;
}

.section-title span {
    color: var(--muted);
    font-size: .75rem;
}

.grid-2,
.grid-3 {
    display: grid;
    gap: 11px;
}

.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
    min-width: 0;
}

.field.span-2 {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: .81rem;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--border);
    border-radius: 10px;
    outline: 0;
    background: var(--panel-3);
    padding: 10px 11px;
    color: var(--text);
}

textarea {
    min-height: 104px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus,
button:focus-visible {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(111, 211, 255, .14);
    outline: none;
}

.hint {
    margin-top: 5px;
    color: var(--muted);
    font-size: .73rem;
    line-height: 1.4;
}

.checks {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 12px;
    margin-top: 12px;
}

.check {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    margin: 0;
    font-size: .82rem;
    line-height: 1.35;
}

.check input {
    width: 18px;
    height: 18px;
    min-height: 0;
    margin-top: 1px;
    padding: 0;
    accent-color: var(--accent);
}

.notice {
    border: 1px solid rgba(255, 211, 107, .30);
    border-radius: 11px;
    background: rgba(255, 211, 107, .06);
    padding: 11px 13px;
    color: #ffe4a0;
    font-size: .8rem;
    line-height: 1.5;
}

.notice.info {
    border-color: rgba(111, 211, 255, .28);
    background: rgba(111, 211, 255, .06);
    color: #ccefff;
}

.hidden {
    display: none !important;
}

[data-level="advanced"],
[data-level="expert"] {
    display: none;
}

body.level-advanced [data-level="advanced"],
body.level-expert [data-level="advanced"],
body.level-expert [data-level="expert"] {
    display: block;
}

body.level-advanced .grid-2 [data-level="advanced"],
body.level-expert .grid-2 [data-level="advanced"],
body.level-expert .grid-2 [data-level="expert"],
body.level-advanced .grid-3 [data-level="advanced"],
body.level-expert .grid-3 [data-level="advanced"],
body.level-expert .grid-3 [data-level="expert"] {
    display: block;
}

.preview-panel {
    display: grid;
    gap: 0;
}

.visual {
    min-height: 250px;
    padding: 18px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(19, 34, 56, .78), rgba(9, 21, 36, .76));
}

.topology {
    display: grid;
    grid-template-columns: 1fr 120px 1fr;
    gap: 13px;
    align-items: center;
    min-height: 210px;
}

.node {
    min-width: 0;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--panel-3);
    padding: 15px;
}

.node strong,
.node small {
    display: block;
}

.node strong {
    margin-bottom: 6px;
}

.node small {
    color: var(--muted);
    overflow-wrap: anywhere;
    line-height: 1.45;
}

.links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.link {
    display: flex;
    gap: 7px;
    align-items: center;
    color: var(--muted);
    font-size: .7rem;
}

.line {
    height: 2px;
    flex: 1;
    background: var(--border);
}

.pills {
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.pill {
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 9px;
    color: var(--muted);
    font-size: .72rem;
}

.pill.good {
    color: var(--good);
}

.pill.warn {
    color: var(--warn);
}

.pill.bad {
    color: var(--bad);
}

.risk-panel {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 14px;
    align-items: start;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.risk-badge {
    min-width: 82px;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 11px;
    text-align: center;
    font-weight: 800;
}

.risk-badge.low {
    color: var(--good);
}

.risk-badge.medium {
    color: var(--warn);
}

.risk-badge.high {
    color: var(--bad);
}

.risk-copy strong {
    display: block;
    margin-bottom: 4px;
}

.risk-copy ul {
    margin: 6px 0 0 18px;
    padding: 0;
    color: var(--muted);
    font-size: .78rem;
    line-height: 1.45;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    padding: 12px 15px;
    border-bottom: 1px solid var(--border);
}

.toolbar small {
    display: block;
    color: var(--muted);
}

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

pre {
    max-height: 760px;
    margin: 0;
    overflow: auto;
    background: var(--code);
    padding: 17px;
    white-space: pre;
    font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.footer {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 16px;
    color: var(--muted);
    font-size: .76rem;
}

@media (max-width: 1080px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .hero,
    .top-controls {
        grid-template-columns: 1fr;
    }

    .badge {
        justify-self: start;
    }
}

@media (max-width: 680px) {
    .shell {
        padding: 15px;
    }

    .grid-2,
    .grid-3,
    .checks,
    .topology {
        grid-template-columns: 1fr;
    }

    .links {
        flex-direction: row;
    }

    .toolbar,
    .card-head,
    .risk-panel {
        align-items: flex-start;
        flex-direction: column;
    }

    .risk-panel {
        display: flex;
    }
}


/* ============================================================
   APPLY / REVERT OUTPUT MODE
   ============================================================ */
.output-mode-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 15px;
    border-bottom: 1px solid var(--border);
    background: rgba(9, 21, 36, .55);
}
.segmented.compact .segment { min-height: 38px; padding: 7px 12px; }
.segment:disabled { opacity: .42; cursor: not-allowed; }
.rollback-note { color: var(--muted); font-size: .76rem; line-height: 1.4; text-align: right; }
.rollback-note.exact { color: var(--good); }
.rollback-note.warn { color: var(--warn); }
@media (max-width: 720px) {
    .output-mode-bar { align-items: flex-start; flex-direction: column; }
    .rollback-note { text-align: left; }
}

/* ============================================================
   V1.6 IMPORT / DIFF + V1.7 PLAN
   ============================================================ */
.import-panel {
    margin: 0 0 18px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(9, 21, 36, .42);
}
.import-panel > summary {
    cursor: pointer;
    list-style: none;
    padding: 13px 14px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}
.import-panel > summary::-webkit-details-marker { display: none; }
.details-body { padding: 0 14px 14px; }
.inline-actions { min-height: 43px; align-items: center; }
.plan-builder { border-top: 1px solid var(--border); }
.plan-actions { margin-bottom: 10px; }
.plan-list {
    margin: 10px 0 8px 20px;
    padding: 0;
    color: var(--muted);
    font-size: .8rem;
    line-height: 1.55;
}
.plan-list li { margin-bottom: 6px; }
.plan-item-row { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.plan-remove {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--bad);
    border-radius: 8px;
    padding: 3px 8px;
    cursor: pointer;
}
.muted-item { color: var(--muted); }
.diff-panel {
    padding: 13px 16px;
    border-bottom: 1px solid var(--border);
    background: rgba(9, 21, 36, .35);
}
.diff-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: baseline;
}
.diff-head small { color: var(--muted); }
.diff-list {
    margin: 8px 0 0 18px;
    padding: 0;
    color: var(--muted);
    font-size: .76rem;
    line-height: 1.5;
}
.diff-list li.add { color: var(--good); }
.diff-list li.change { color: var(--warn); }
.diff-list li.unknown { color: var(--bad); }
.preview-mode-bar {
    padding: 10px 15px;
    border-bottom: 1px solid var(--border);
}
@media (max-width: 680px) {
    .diff-head, .plan-item-row { align-items: flex-start; flex-direction: column; }
}

/* ============================================================
   v1.8 REDUNDANCY / SWITCH PAIR
   ============================================================ */
.port-policy-table {
    display: grid;
    gap: 8px;
}
.port-policy-row {
    display: grid;
    grid-template-columns: 52px minmax(180px, .8fr) minmax(180px, 1.2fr);
    gap: 10px;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--line);
}
.port-policy-row.header {
    color: var(--muted);
    font-size: .76rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.port-policy-row select,
.port-policy-row input { min-width: 0; }
.diff-list li.drift { color: var(--bad); }
.diff-list li.warning { color: var(--warn); }
.diff-list li.ignored { color: var(--muted); }
.diff-list li.match { color: var(--good); }
.diff-list li.unknown { color: var(--warn); }
@media (max-width: 620px) {
    .port-policy-row { grid-template-columns: 45px 1fr; }
    .port-policy-row > :last-child { grid-column: 2; }
    .port-policy-row.header > :last-child { display: none; }
}