:root {
  color-scheme: dark;
  --bg: #080a0f;
  --panel: rgba(17, 20, 28, .94);
  --field: #0b0e15;
  --line: #2a303d;
  --line-bright: #3c465a;
  --text: #f2f4f8;
  --muted: #8b93a3;
  --accent: #7c9cff;
  --accent-soft: rgba(124, 156, 255, .09);
  --danger: #ff8d8d;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); }
body { margin: 0; min-height: 100vh; color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, textarea { font: inherit; }
button { color: inherit; }

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    linear-gradient(rgba(124, 156, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 156, 255, .035) 1px, transparent 1px),
    radial-gradient(circle at 50% -10%, rgba(88, 119, 218, .2), transparent 42rem),
    var(--bg);
  background-size: 42px 42px, 42px 42px, auto, auto;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: .24;
  pointer-events: none;
  background: repeating-linear-gradient(32deg, transparent 0 180px, rgba(124, 156, 255, .13) 181px, transparent 182px 360px);
  mask-image: linear-gradient(to bottom, black, transparent 74%);
}

.network-bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.network-bg i { position: absolute; width: 7px; height: 7px; border: 1px solid rgba(124, 156, 255, .55); border-radius: 50%; box-shadow: 0 0 18px rgba(124, 156, 255, .42); }
.network-bg i::after { content: ""; position: absolute; top: 2px; left: 6px; width: 180px; height: 1px; background: linear-gradient(90deg, rgba(124, 156, 255, .35), transparent); transform: rotate(var(--angle)); transform-origin: left; }
.network-bg i:nth-child(1) { top: 15%; left: 7%; --angle: 18deg; }
.network-bg i:nth-child(2) { top: 29%; right: 11%; --angle: 152deg; }
.network-bg i:nth-child(3) { top: 58%; left: 13%; --angle: -24deg; }
.network-bg i:nth-child(4) { top: 76%; right: 8%; --angle: 198deg; }
.network-bg i:nth-child(5) { top: 88%; left: 38%; --angle: -48deg; }
.network-bg i:nth-child(6) { top: 8%; right: 36%; --angle: 110deg; }

.topbar { width: min(100% - 40px, 1240px); min-height: 74px; margin: 0 auto; display: grid; grid-template-columns: auto auto minmax(0, 1fr); gap: 26px; align-items: center; }
.logo { display: inline-flex; align-items: center; gap: 7px; color: var(--text); font-size: 21px; font-weight: 800; letter-spacing: -.8px; text-decoration: none; }
.logo img { width: 27px; height: 27px; border-radius: 7px; }
.logo span, .kicker { color: var(--accent); }
.tabs { display: flex; gap: 3px; padding: 4px; border: 1px solid var(--line); border-radius: 10px; background: rgba(8, 10, 15, .72); }
.tab, .top-actions button, .version-switch button { border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.tab { padding: 8px 13px; border-radius: 7px; font-size: 12px; }
.tab:hover, .tab.active { background: #1c2230; color: var(--text); }
.top-actions { min-width: 0; justify-self: end; display: flex; align-items: center; gap: 12px; }
.top-tools, .top-session { display: flex; align-items: center; gap: 7px; }
.top-session { padding-left: 12px; border-left: 1px solid var(--line); }
.top-session:has(> .account-status-button[hidden]:only-child) { display: none; }
.top-actions button { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 11px; white-space: nowrap; }
.top-actions button:hover { border-color: var(--line-bright); color: var(--text); }
.top-tools .projects-button { order: 1; }
.top-tools .requests-button { order: 2; }
.top-tools .audit-button { order: 3; }
.top-tools .settings-action { order: 10; }
.top-tools .users-button { order: 20; }
.top-tools .help-action { order: 30; }
.top-tools .about-action { order: 40; }
.account-status-button { display: inline-flex; align-items: center; gap: 7px; }
.account-status-button[hidden] { display: none; }
.account-status-button i { width: 7px; height: 7px; border-radius: 50%; background: #646c7a; }
.account-status-button span { max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-status-button.connected { border-color: rgba(124, 156, 255, .42); background: var(--accent-soft); color: #c8d3f8; }
.account-status-button.connected i { background: #54d98c; box-shadow: 0 0 10px rgba(84, 217, 140, .72); }

.shell { width: min(100% - 32px, var(--calculator-width, 760px)); min-height: calc(100vh - 130px); margin: 28px auto 48px; transition: width .2s ease; }
body[data-active-view="planner"] .shell { width: min(100% - 32px, 1040px); }
.view { padding: clamp(22px, 5vw, 38px); border: 1px solid var(--line); border-radius: 17px; background: var(--panel); box-shadow: 0 28px 90px rgba(0, 0, 0, .34); backdrop-filter: blur(14px); }
.view[hidden] { display: none; }
.section-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.kicker { margin: 0 0 7px; font-size: 9px; font-weight: 800; letter-spacing: .15em; }
h1 { margin: 0; font-size: clamp(25px, 6vw, 35px); letter-spacing: -.045em; }
.version-switch { display: flex; padding: 3px; border: 1px solid var(--line); border-radius: 8px; }
.version-switch button { padding: 7px 10px; border-radius: 5px; font-size: 11px; }
.version-switch button.active { background: var(--accent); color: #080b12; font-weight: 700; }
.calculator-head-tools { display: flex; align-items: center; gap: 8px; }
.window-scale { display: flex; align-items: center; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; }
.window-scale button { width: 29px; height: 34px; padding: 0; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.window-scale button:hover:not(:disabled) { background: #1c2230; color: var(--text); }
.window-scale button:disabled { opacity: .3; cursor: default; }
.window-scale output { min-width: 43px; padding: 0 7px; color: var(--accent); font: 700 9px ui-monospace, SFMono-Regular, Menlo, monospace; text-align: center; }
.planner-head-tools { display: flex; align-items: center; gap: 8px; }
.planner-badge { padding: 6px 9px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.planner-project-menu { position: relative; }
.planner-project-toggle { display: inline-flex; height: 31px; align-items: center; gap: 8px; padding: 0 10px; border: 1px solid var(--line); border-radius: 7px; background: #0d1119; color: #c3cad6; font-size: 10px; cursor: pointer; }
.planner-project-toggle:hover, .planner-project-toggle[aria-expanded="true"] { border-color: var(--line-bright); background: #171d29; color: var(--text); }
.planner-project-toggle i { color: var(--accent); font-style: normal; transition: transform .16s ease; }
.planner-project-toggle[aria-expanded="true"] i { transform: rotate(180deg); }
.planner-project-dropdown { position: absolute; top: calc(100% + 7px); right: 0; z-index: 25; width: 238px; padding: 6px; border: 1px solid var(--line-bright); border-radius: 10px; background: #111620; box-shadow: 0 20px 55px rgba(0, 0, 0, .58); }
.planner-project-dropdown[hidden] { display: none; }
.planner-project-dropdown button { display: grid; width: 100%; gap: 2px; padding: 9px 10px; border: 0; border-radius: 7px; background: transparent; color: var(--text); text-align: left; cursor: pointer; }
.planner-project-dropdown button:hover, .planner-project-dropdown button:focus-visible { outline: 0; background: var(--accent-soft); }
.planner-project-dropdown strong { font-size: 10px; font-weight: 650; }
.planner-project-dropdown small { color: var(--muted); font-size: 8px; line-height: 1.35; }
.planner-project-dropdown .project-menu-danger { margin-top: 5px; border-top: 1px solid var(--line); border-radius: 0 0 7px 7px; color: var(--danger); }
.planner-project-dropdown .project-menu-danger:hover { background: rgba(255, 141, 141, .08); }

label > span, .results span, .plan-summary span { display: block; margin-bottom: 7px; color: var(--muted); font-size: 11px; }
input, textarea { width: 100%; padding: 0 13px; border: 1px solid var(--line); border-radius: 8px; outline: none; background: var(--field); color: var(--text); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
input { height: 46px; }
textarea { min-height: 96px; padding-block: 11px; resize: vertical; }
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(124, 156, 255, .12); }
input[aria-invalid="true"] { border-color: var(--danger); }
.cidr-field input { height: 54px; font-size: clamp(17px, 4vw, 22px); }
.prefix-control { margin-top: 15px; }
.prefix-control-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.prefix-control-head label { color: var(--muted); font-size: 11px; }
.prefix-control-head output { color: var(--accent); font: 700 13px ui-monospace, SFMono-Regular, Menlo, monospace; }
.prefix-slider { --prefix-progress: 75%; appearance: none; width: 100%; height: 32px; padding: 0; border: 0; border-radius: 0; outline: none; background: linear-gradient(90deg, var(--accent) 0 var(--prefix-progress), var(--line) var(--prefix-progress) 100%) center / 100% 4px no-repeat; cursor: pointer; }
.prefix-slider:focus { border-color: transparent; box-shadow: none; }
.prefix-slider:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.prefix-slider::-webkit-slider-runnable-track { height: 4px; background: transparent; }
.prefix-slider::-webkit-slider-thumb { appearance: none; width: 20px; height: 20px; margin-top: -8px; border: 3px solid var(--field); border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.prefix-slider::-moz-range-track { height: 4px; background: transparent; }
.prefix-slider::-moz-range-thumb { width: 14px; height: 14px; border: 3px solid var(--field); border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.prefix-scale { display: flex; justify-content: space-between; margin-top: -3px; color: #646c7a; font: 9px ui-monospace, SFMono-Regular, Menlo, monospace; }
.error { margin: 14px 0 0; padding: 11px 12px; border: 1px solid rgba(255, 141, 141, .25); border-radius: 8px; background: rgba(255, 141, 141, .07); color: var(--danger); font-size: 12px; }
.address-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 21px; }
#address-type { padding: 5px 8px; border-radius: 5px; background: var(--accent-soft); color: var(--accent); font-size: 10px; }
.local { color: var(--muted); font-size: 10px; }
.local i { display: inline-block; width: 6px; height: 6px; margin-right: 5px; border-radius: 50%; background: var(--accent); }

.results { display: grid; grid-template-columns: 1fr 1fr; margin-top: 12px; overflow: hidden; border: 1px solid var(--line); border-radius: 10px; }
.results > div { min-width: 0; padding: 14px 15px; border-bottom: 1px solid var(--line); }
.results .result-right { border-left: 1px solid var(--line); }
.results .primary, .results .wide { grid-column: 1 / -1; }
.results .primary { background: var(--accent-soft); }
.results .result-last-row { border-bottom: 0; }
.results span { margin-bottom: 4px; }
.results strong { display: block; overflow-wrap: anywhere; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 600; }
.results .primary strong { color: var(--accent); font-size: 18px; }
.result-input { width: 100%; height: 29px; padding: 0 8px; border-radius: 6px; font-size: 13px; font-weight: 600; }
.result-input[readonly] { padding: 0; border-color: transparent; background: transparent; color: var(--text); cursor: default; }
.result-input[readonly]:focus { border-color: transparent; box-shadow: none; }
.results.mask-menu-open { overflow: visible; }
.mask-result { position: relative; }
.results.mask-menu-open .mask-result { z-index: 5; }
.mask-editor { display: grid; grid-template-columns: 29px minmax(0, 1fr) 29px 29px; gap: 5px; align-items: center; }
.mask-input-wrap { position: relative; min-width: 0; }
.mask-input-wrap .result-input { height: 32px; padding-right: 45px; }
.mask-input-wrap output { position: absolute; top: 50%; right: 8px; transform: translateY(-50%); padding: 2px 5px; border-radius: 4px; background: var(--accent-soft); color: var(--accent); font: 700 10px ui-monospace, SFMono-Regular, Menlo, monospace; pointer-events: none; }
.mask-step, .mask-toggle { width: 29px; height: 32px; padding: 0; border: 1px solid var(--line); border-radius: 6px; background: var(--field); color: var(--muted); cursor: pointer; }
.mask-step { font-size: 16px; }
.mask-toggle { font-size: 15px; transition: transform .16s ease; }
.mask-step:hover, .mask-toggle:hover, .mask-toggle[aria-expanded="true"] { border-color: var(--line-bright); color: var(--text); }
.mask-step:focus-visible, .mask-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.mask-step:disabled { opacity: .35; cursor: default; }
.mask-toggle[aria-expanded="true"] { transform: rotate(180deg); }
.mask-help { display: block; margin-top: 6px; color: #6f7787; font-size: 9px; line-height: 1.35; }
.mask-help[hidden] { display: none; }
.mask-editor.ipv6 { display: block; }
.mask-editor.ipv6 .mask-input-wrap .result-input { padding-right: 0; }
.mask-editor.ipv6 .mask-step, .mask-editor.ipv6 .mask-toggle, .mask-editor.ipv6 output { display: none; }
.mask-menu { position: absolute; top: calc(100% - 4px); left: 14px; right: 14px; z-index: 20; overflow: hidden; border: 1px solid var(--line-bright); border-radius: 9px; background: #0d1119; box-shadow: 0 18px 42px rgba(0, 0, 0, .58); }
.mask-menu[hidden] { display: none; }
.mask-menu-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 11px 12px 8px; }
.mask-menu-head strong { font-family: inherit; font-size: 11px; }
.mask-menu-head span { margin: 0; font-size: 8px; }
.mask-quick { display: flex; flex-wrap: wrap; gap: 5px; padding: 0 12px 10px; border-bottom: 1px solid var(--line); }
.mask-quick button { padding: 5px 8px; border: 1px solid var(--line); border-radius: 5px; background: var(--field); color: var(--muted); font: 700 9px ui-monospace, SFMono-Regular, Menlo, monospace; cursor: pointer; }
.mask-quick button:hover, .mask-quick button.selected { border-color: rgba(124, 156, 255, .5); background: var(--accent-soft); color: var(--accent); }
.mask-options { max-height: 216px; overflow-y: auto; padding: 5px; scrollbar-color: var(--line-bright) transparent; }
.mask-option { display: grid; width: 100%; grid-template-columns: 38px minmax(0, 1fr) auto; gap: 8px; align-items: center; padding: 7px 8px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); text-align: left; cursor: pointer; }
.mask-option:hover, .mask-option.selected { background: var(--accent-soft); color: var(--text); }
.mask-option span { margin: 0; color: var(--accent); font: 700 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.mask-option strong { overflow: hidden; color: inherit; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.mask-option small { color: #737c8e; font: 8px ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.binary-panel { margin-top: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 9px; }
.binary-panel summary { color: var(--muted); font-size: 11px; cursor: pointer; }
.binary-panel code { display: block; margin-top: 12px; color: #b9c8f7; font-size: 10px; line-height: 1.7; overflow-wrap: anywhere; }

.button-row { display: grid; grid-template-columns: 1fr; gap: 9px; margin-top: 14px; }
.primary-button, .secondary-button, .add-row { padding: 12px 15px; border-radius: 8px; cursor: pointer; }
.primary-button { border: 0; background: var(--accent); color: #080b12; font-weight: 750; }
.primary-button:hover { background: #93acff; }
.secondary-button, .add-row { border: 1px solid var(--line); background: transparent; color: #b8beca; }
.secondary-button:hover, .add-row:hover { border-color: var(--line-bright); color: var(--text); }

.subnet-editor { margin-top: 21px; }
.editor-head, .subnet-row { display: grid; grid-template-columns: minmax(170px, 1fr) 180px 82px; gap: 8px; align-items: center; }
.editor-head { padding: 0 3px 7px; color: var(--muted); font-size: 10px; }
.subnet-row { position: relative; margin-bottom: 8px; border-radius: 11px; transition: opacity .18s ease, filter .18s ease, box-shadow .22s ease, background-color .22s ease; }
.subnet-row input { height: 42px; }
.subnet-row.map-selected { background: rgba(124, 156, 255, .075); box-shadow: 0 0 0 1px rgba(124, 156, 255, .52), 0 8px 24px rgba(0, 0, 0, .15); }
.subnet-row.dragging { opacity: .24; filter: saturate(.55); }
.subnet-row.drop-before::before, .subnet-row.drop-after::after { position: absolute; right: 8px; left: 8px; z-index: 4; height: 3px; border-radius: 999px; background: linear-gradient(90deg, transparent, #8fa9ff 9%, #b4c4ff 50%, #8fa9ff 91%, transparent); box-shadow: 0 0 0 1px rgba(124, 156, 255, .18), 0 0 16px rgba(124, 156, 255, .7); content: ""; pointer-events: none; }
.subnet-row.drop-before::before { top: -6px; }
.subnet-row.drop-after::after { bottom: -6px; }
#subnet-rows.sorting { cursor: grabbing; }
.subnet-pointer-drag, .subnet-pointer-drag * { cursor: grabbing !important; }
.subnet-drag-preview { position: fixed; top: -2000px; left: -2000px; z-index: 1000; display: grid; width: min(460px, calc(100vw - 32px)); grid-template-columns: minmax(0, 1fr) auto 28px; gap: 12px; align-items: center; padding: 12px 14px; border: 1px solid rgba(159, 181, 255, .58); border-radius: 14px; background: rgba(27, 32, 44, .94); box-shadow: 0 24px 60px rgba(0, 0, 0, .48), 0 0 0 1px rgba(255, 255, 255, .06) inset; opacity: 0; transform: rotate(.35deg) scale(.98); pointer-events: none; backdrop-filter: blur(18px) saturate(1.25); transition: opacity .14s ease, transform .2s cubic-bezier(.22, 1, .36, 1); }
.subnet-drag-preview.visible { opacity: .98; transform: rotate(.35deg) scale(1.015); }
.subnet-drag-preview-name { overflow: hidden; color: var(--text); font: 600 13px ui-monospace, SFMono-Regular, Menlo, monospace; text-overflow: ellipsis; white-space: nowrap; }
.subnet-drag-preview code { color: #becaff; font: 700 12px ui-monospace, SFMono-Regular, Menlo, monospace; }
.subnet-drag-preview-handle { color: #9cadde; font-size: 18px; text-align: center; }
.subnet-size-field { display: grid; position: relative; }
.subnet-size-field small { position: absolute; right: 9px; bottom: 3px; max-width: calc(100% - 18px); overflow: hidden; color: #697286; font: 7px ui-monospace, SFMono-Regular, Menlo, monospace; text-overflow: ellipsis; white-space: nowrap; pointer-events: none; }
.subnet-size-field input { padding-bottom: 12px; }
.subnet-size-field input[aria-invalid="true"] { border-color: var(--danger); }
.subnet-row-actions { display: grid; grid-template-columns: 36px 32px; gap: 7px; align-items: center; }
.subnet-row-actions button { width: 32px; height: 36px; border: 1px solid var(--line); border-radius: 7px; background: transparent; color: var(--muted); font-size: 14px; cursor: pointer; }
.subnet-row-actions button:hover:not(:disabled) { border-color: var(--line-bright); color: var(--text); }
.subnet-row-actions button:disabled { opacity: .3; cursor: default; }
.subnet-drag-handle { display: grid; width: 36px; height: 36px; place-items: center; border: 1px solid rgba(139, 147, 163, .28); border-radius: 9px; background: linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, .012)); color: var(--muted); font-size: 18px; cursor: grab; user-select: none; touch-action: none; transition: color .18s ease, border-color .18s ease, background-color .18s ease, transform .18s cubic-bezier(.22, 1, .36, 1), box-shadow .18s ease; }
.subnet-drag-handle:hover { border-color: rgba(124, 156, 255, .7); background: rgba(124, 156, 255, .09); color: #aebfff; box-shadow: 0 6px 18px rgba(0, 0, 0, .18); transform: translateY(-1px); }
.subnet-drag-handle:active { cursor: grabbing; transform: scale(.94); }
.remove-row { width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 7px; background: transparent; color: var(--muted); font-size: 18px; cursor: pointer; }
.subnet-row-actions .remove-row { width: 32px; }
.remove-row:hover { border-color: var(--danger); color: var(--danger); }
.add-row { margin-top: 2px; padding: 9px 12px; font-size: 11px; }
.subnet-editor-help { margin: 9px 2px 0; color: #747d8f; font-size: 9px; line-height: 1.55; }
.subnet-editor-help code { color: #aebdf1; }
.sync-panel { margin-top: 14px; padding: 16px; border: 1px solid rgba(124, 156, 255, .26); border-radius: 10px; background: linear-gradient(135deg, rgba(124, 156, 255, .08), rgba(8, 10, 15, .28)); }
.sync-panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.sync-panel h2 { margin: 0; font-size: 16px; }
.sync-panel > p { margin: 12px 0 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.sync-state { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 10px; white-space: nowrap; }
.sync-state i { width: 7px; height: 7px; border-radius: 50%; background: #646c7a; }
.sync-state.online { color: #aebdf1; }
.sync-state.online i { background: var(--accent); box-shadow: 0 0 11px rgba(124, 156, 255, .65); }
.sync-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 14px; }
.calculate-plan { width: 100%; margin-top: 16px; }
.plan-output { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--line); }
.plan-summary { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 14px; overflow: hidden; border: 1px solid var(--line); border-radius: 9px; }
.plan-summary > div { padding: 12px; }
.plan-summary > div + div { border-left: 1px solid var(--line); }
.plan-summary span { margin-bottom: 4px; }
.plan-summary strong { font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; }
.map-section { margin: 18px 0; padding: 18px; border: 1px solid var(--line); border-radius: 10px; background: rgba(8, 10, 15, .42); }
.map-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 16px; }
.map-heading .kicker { margin-bottom: 5px; }
.map-heading h2 { margin: 0; font-size: 17px; letter-spacing: -.02em; }
#map-usage { color: var(--muted); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.network-map { width: 100%; height: 118px; overflow: hidden; border: 1px solid var(--line); border-radius: 11px; background: #0a0d13; touch-action: none; transition: border-color .2s ease, box-shadow .24s ease, transform .24s cubic-bezier(.22, 1, .36, 1); }
.network-map.drag-active { border-color: rgba(145, 174, 255, .82); box-shadow: 0 0 0 4px rgba(124, 156, 255, .12), 0 18px 46px rgba(0, 0, 0, .24); transform: scale(1.002); }
.network-map-svg { display: block; width: 100%; height: 100%; }
.map-segment-group { cursor: grab; outline: none; transition: opacity .18s ease, filter .18s ease; }
.map-segment-group:active { cursor: grabbing; }
.map-rect { stroke: rgba(8, 10, 15, .62); stroke-width: 1; vector-effect: non-scaling-stroke; transition: stroke .18s ease, stroke-width .18s ease, filter .18s ease; }
.map-rect.free { fill: #121721; }
.map-segment-group:hover .map-rect, .map-segment-group.selected .map-rect { stroke: rgba(255, 255, 255, .78); stroke-width: 3; filter: brightness(1.06); }
.map-segment-group:focus-visible .map-rect { stroke: #fff; stroke-width: 3; }
.map-segment-group.dragging { opacity: .22; filter: saturate(.55); }
.map-drag-preview { fill: rgba(153, 177, 255, .2); stroke: rgba(255, 255, 255, .94); stroke-width: 2; stroke-dasharray: 7 5; opacity: 0; vector-effect: non-scaling-stroke; pointer-events: none; filter: drop-shadow(0 8px 14px rgba(0, 0, 0, .45)); transition: opacity .14s ease; }
.map-drag-preview.visible { opacity: 1; animation: map-drop-breathe 1.1s ease-in-out infinite alternate; }
.map-drag-preview.invalid { fill: rgba(255, 111, 126, .16); stroke: var(--danger); }
@keyframes map-drop-breathe { from { stroke-opacity: .7; } to { stroke-opacity: 1; } }
.map-drag-hint { min-height: 16px; margin: 7px 2px -3px; color: #aebfff; font: 9px ui-monospace, SFMono-Regular, Menlo, monospace; opacity: 0; transform: translateY(-3px); transition: opacity .18s ease, transform .22s cubic-bezier(.22, 1, .36, 1), color .18s ease; }
.map-drag-hint.visible { opacity: 1; transform: translateY(0); }
.map-drag-hint.invalid { color: var(--danger); }
.map-drag-hint.success { color: #9fd7b2; }
.map-label { display: flex; height: 100%; min-width: 0; align-items: flex-end; padding: 8px; overflow: hidden; color: #080b12; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; text-align: left; }
.map-label > span { min-width: 0; overflow: hidden; }
.map-label strong { display: block; overflow: hidden; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.map-label small { display: block; margin-top: 2px; overflow: hidden; font: 8px ui-monospace, SFMono-Regular, Menlo, monospace; opacity: .72; text-overflow: ellipsis; white-space: nowrap; }
.map-label.free { color: var(--muted); }
.map-rect.color-0 { fill: #7c9cff; }
.map-rect.color-1 { fill: #b28cff; }
.map-rect.color-2 { fill: #58c7dd; }
.map-rect.color-3 { fill: #e5a95c; }
.map-rect.color-4 { fill: #df7b9d; }
.map-rect.color-5 { fill: #8ba8c8; }
.legend-dot.color-0 { background-color: #7c9cff; }
.legend-dot.color-1 { background-color: #b28cff; }
.legend-dot.color-2 { background-color: #58c7dd; }
.legend-dot.color-3 { background-color: #e5a95c; }
.legend-dot.color-4 { background-color: #df7b9d; }
.legend-dot.color-5 { background-color: #8ba8c8; }
.map-legend { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 18px; margin-top: 14px; }
.legend-item { display: grid; grid-template-columns: 8px minmax(0, 1fr) auto; gap: 7px; align-items: center; min-width: 0; color: var(--muted); font-size: 10px; }
.legend-dot { width: 8px; height: 8px; border-radius: 2px; background: #4a5160; }
.legend-item strong { overflow: hidden; color: #c8ced8; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.legend-item code { padding: 0; background: transparent; color: var(--muted); font-size: 9px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 9px; }
table { width: 100%; min-width: 780px; border-collapse: collapse; font-size: 11px; }
th, td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { color: var(--muted); background: #0d1119; font-weight: 500; }
td { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
tbody tr:last-child td { border-bottom: 0; }
.export { width: 100%; margin-top: 10px; }

footer { width: min(100% - 40px, 980px); margin: 0 auto 28px; color: #646c7a; font-size: 10px; }
dialog { width: min(calc(100% - 32px), 500px); max-height: calc(100vh - 40px); padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: #151922; color: var(--text); box-shadow: 0 30px 100px rgba(0, 0, 0, .6); }
dialog::backdrop { background: rgba(0, 0, 0, .76); backdrop-filter: blur(3px); }
.dialog-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.dialog-head h2 { margin: 0; font-size: 20px; }
.close { width: 32px; height: 32px; border: 1px solid var(--line); border-radius: 7px; background: transparent; color: var(--muted); font-size: 21px; line-height: 1; cursor: pointer; }
dialog h3 { margin: 20px 0 8px; color: var(--accent); font-size: 12px; }
dialog p, dialog li { color: #b8beca; font-size: 13px; line-height: 1.65; }
dialog ol { margin: 0; padding-left: 21px; }
dialog li + li { margin-top: 7px; }
code { padding: 2px 5px; border-radius: 4px; background: #0b0e14; color: var(--accent); }
.author { margin: 22px 0 0; color: var(--muted); }
.author strong { color: var(--accent); }
.display-settings-dialog { width: min(calc(100% - 32px), 480px); }
.display-settings-dialog .dialog-head { align-items: flex-start; }
.display-settings-dialog .dialog-head .kicker { margin-bottom: 5px; }
.display-settings-intro { margin: -2px 0 16px; color: var(--muted); font-size: 11px; }
.display-settings-list { display: grid; gap: 9px; }
.display-setting { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--field); cursor: pointer; }
.display-setting > span { display: grid; gap: 4px; min-width: 0; }
.display-setting strong { color: var(--text); font-size: 12px; }
.display-setting small { color: var(--muted); font-size: 10px; line-height: 1.4; }
.display-setting input { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; pointer-events: none; }
.display-setting > i { position: relative; width: 42px; height: 24px; border: 1px solid #3b4352; border-radius: 999px; background: #0b0e14; transition: border-color .18s ease, background .18s ease; }
.display-setting > i::after { position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #737c8d; content: ""; transition: transform .18s ease, background .18s ease; }
.display-setting input:checked + i { border-color: #6f8ee8; background: #27385f; }
.display-setting input:checked + i::after { background: #8ca7ff; transform: translateX(18px); }
.display-setting input:focus-visible + i { outline: 2px solid var(--accent); outline-offset: 3px; }
.display-settings-done { width: 100%; margin-top: 16px; }
#about { width: min(calc(100% - 32px), 540px); }
.about-hero { display: flex; align-items: center; gap: 18px; padding: 18px; border: 1px solid var(--line); border-radius: 13px; background: #0d1119; }
.about-logo { width: 82px; height: 82px; flex: 0 0 auto; border-radius: 19px; box-shadow: 0 12px 32px rgba(0, 0, 0, .35); }
.about-hero div { display: grid; gap: 3px; }
.about-hero span { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.about-hero strong { color: var(--text); font-size: 29px; letter-spacing: -.04em; }
.about-hero small { color: var(--muted); font-size: 11px; }
#about .about-description { margin: 18px 0 14px; }
.about-features { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.about-features li { margin: 0; padding: 6px 9px; border: 1px solid var(--line); border-radius: 6px; background: #0b0e14; color: #c8ced8; font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; line-height: 1.2; }
.about-meta { display: grid; gap: 5px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.about-meta strong { color: var(--accent); }
.sync-dialog-head { align-items: flex-start; margin-bottom: 14px; }
.sync-dialog-head .kicker { margin-bottom: 5px; }
.sync-account-status { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; padding: 13px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--field); }
.sync-account-status > i { width: 10px; height: 10px; flex: 0 0 auto; border-radius: 50%; background: #646c7a; }
.sync-account-status > div { display: grid; gap: 3px; min-width: 0; }
.sync-account-status strong { font-size: 12px; }
.sync-account-status span { color: var(--muted); font-size: 10px; line-height: 1.45; }
.sync-account-status.online { border-color: rgba(124, 156, 255, .34); background: var(--accent-soft); }
.sync-account-status.online > i { background: var(--accent); box-shadow: 0 0 13px rgba(124, 156, 255, .75); }
.sync-account-status.online strong { color: #dbe3ff; }
.sync-form { display: grid; gap: 14px; }
.sync-form[hidden], .sync-session[hidden] { display: none; }
.sync-form-heading { display: grid; gap: 4px; padding-bottom: 2px; }
.sync-form-heading strong { font-size: 13px; }
.sync-form-heading span { color: var(--muted); font-size: 10px; line-height: 1.5; }
.sync-form label > span, .sync-session-details span { display: block; margin-bottom: 7px; color: var(--muted); font-size: 11px; }
.sync-hint { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.sync-form .error { margin: 0; }
.sync-session { display: grid; gap: 11px; }
.sync-profile-card { display: flex; align-items: center; gap: 13px; padding: 15px; border: 1px solid rgba(124, 156, 255, .28); border-radius: 11px; background: linear-gradient(135deg, rgba(124, 156, 255, .11), rgba(11, 14, 21, .72)); }
.sync-avatar { display: grid; width: 46px; height: 46px; flex: 0 0 auto; place-items: center; border: 1px solid rgba(124, 156, 255, .48); border-radius: 50%; background: #111a2d; color: #b9c8ff; font-size: 14px; font-weight: 800; letter-spacing: .04em; }
.sync-profile-copy { display: grid; gap: 3px; min-width: 0; }
.sync-profile-copy > strong { overflow: hidden; font-size: 15px; text-overflow: ellipsis; white-space: nowrap; }
.sync-profile-copy small { color: var(--muted); font-size: 10px; }
.sync-connected-label { display: inline-flex; align-items: center; gap: 5px; color: #aebdf1; font-size: 9px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.sync-connected-label i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px rgba(124, 156, 255, .7); }
.sync-session-details { display: grid; grid-template-columns: 1fr 1fr; overflow: hidden; border: 1px solid var(--line); border-radius: 9px; background: var(--field); }
.sync-session-details > div { min-width: 0; padding: 13px; }
.sync-session-details > div + div { border-left: 1px solid var(--line); }
.sync-session-details span { margin-bottom: 5px; }
.sync-session-details strong { display: block; overflow-wrap: anywhere; color: #cbd1dc; font-size: 10px; font-weight: 600; line-height: 1.45; }
.sync-session-details > div:first-child strong { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.danger-button { color: var(--danger); }
.danger-button:hover { border-color: rgba(255, 141, 141, .5); color: #ffb0b0; }
.sync-delete-account { padding: 12px; border: 1px solid rgba(255, 141, 141, .2); border-radius: 8px; }
.sync-delete-account summary { color: var(--danger); font-size: 11px; cursor: pointer; }
.sync-delete-account .sync-hint { margin: 12px 0; }
.sync-delete-account .error { margin: 10px 0; }
.sync-delete-account button { width: 100%; margin-top: 10px; }
.sync-project-list { display: grid; gap: 9px; margin: 16px 0; }
.sync-project-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 13px; border: 1px solid var(--line); border-radius: 9px; background: var(--field); }
.sync-project-card h3 { margin: 0 0 5px; color: var(--text); font-size: 13px; }
.sync-project-card p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.45; }
.sync-project-card button { padding: 8px 11px; font-size: 10px; }
.sync-empty { padding: 24px 14px; border: 1px dashed var(--line); border-radius: 9px; color: var(--muted); font-size: 11px; text-align: center; }
.sync-refresh { width: 100%; }
.sync-save-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sync-save-actions > :only-child { grid-column: 1 / -1; }
.sync-busy { cursor: progress !important; opacity: .62; pointer-events: none; }

@media (max-width: 720px) {
  .topbar { width: min(100% - 24px, 980px); height: auto; padding: 16px 0; grid-template-columns: auto minmax(0, 1fr); gap: 13px 18px; }
  .tabs { grid-row: 2; grid-column: 1 / -1; justify-self: stretch; }
  .tab { flex: 1; }
  .top-actions { grid-column: 2; grid-row: 1; max-width: 100%; overflow-x: auto; padding-bottom: 3px; }
  .shell { margin-top: 10px; }
}

@media (max-width: 520px) {
  .shell { width: min(100% - 20px, 760px); }
  .top-actions button { padding: 7px 8px; }
  .account-status-button span { max-width: 72px; }
  .about-hero { gap: 13px; padding: 14px; }
  .about-logo { width: 66px; height: 66px; border-radius: 15px; }
  .about-hero strong { font-size: 24px; }
  .section-head { align-items: center; }
  .calculator-head-tools { align-items: flex-end; flex-direction: column-reverse; }
  .window-scale output { min-width: 39px; }
  .results { grid-template-columns: 1fr; }
  .results .primary, .results .wide { grid-column: auto; }
  .results .result-right { border-left: 0; }
  .results .result-last-row { border-bottom: 1px solid var(--line); }
  .results > div:last-child { border-bottom: 0; }
  .mask-menu { left: 10px; right: 10px; }
  .button-row { grid-template-columns: 1fr; }
  .sync-panel-head { display: grid; }
  .sync-actions, .sync-save-actions { grid-template-columns: 1fr; }
  .sync-session-details { grid-template-columns: 1fr; }
  .sync-session-details > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .sync-project-card { grid-template-columns: 1fr; }
  .editor-head { display: none; }
  .subnet-row { grid-template-columns: minmax(0, 1fr) 80px; padding: 9px; border: 1px solid var(--line); border-radius: 10px; }
  .subnet-row-actions { grid-column: 2; grid-row: 1 / 3; align-self: center; }
  .subnet-row.map-selected { padding: 9px; }
  .plan-summary { grid-template-columns: 1fr; }
  .plan-summary > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .map-section { padding: 14px; }
  .map-legend { grid-template-columns: 1fr; }
  footer { width: min(100% - 24px, 980px); }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }