:root {
  color-scheme: dark;
  font-family: Inter, "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  background: #05070a;
  color: #f5f7fa;
  --bg: #05070a;
  --surface: rgba(20, 22, 25, 0.9);
  --surface-strong: #202225;
  --surface-soft: #111316;
  --line: rgba(255, 255, 255, 0.12);
  --muted: #9199a8;
  --text: #f5f7fa;
  --accent: #8ddbf0;
  --accent-strong: #f4f5f6;
  --accent-text: #0b0c0e;
  --good: #2bd7a0;
  --warn: #f2be65;
  --bad: #f17582;
  --focus: rgba(141, 219, 240, 0.23);
}

:root[data-theme="light"] {
  color-scheme: light;
  background: #f3f5f8;
  color: #17202c;
  --bg: #f5f6f8;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-soft: #edf1f5;
  --line: rgba(23, 32, 44, 0.12);
  --muted: #657184;
  --text: #17202c;
  --accent: #087da1;
  --accent-strong: #16191d;
  --accent-text: #ffffff;
  --good: #16865d;
  --warn: #a76812;
  --bad: #c43c4d;
  --focus: rgba(8, 125, 161, 0.2);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; }
body {
  min-width: 320px;
  background: var(--bg);
}
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
a { color: inherit; }

.shell { min-height: 100vh; }
.topbar {
  position: relative;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1120px, calc(100% - 40px));
  min-height: 82px;
  margin: 0 auto;
  padding: 16px 0;
}
.brand { min-width: 0; }
.brand h1 { margin: 0; font-size: 21px; font-weight: 680; letter-spacing: 0; }
.brand-meta { display: flex; align-items: center; gap: 8px; margin-top: 5px; color: var(--muted); font-size: 11px; text-transform: uppercase; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--good); box-shadow: 0 0 10px color-mix(in srgb, var(--good) 70%, transparent); }
.top-actions { display: flex; align-items: center; gap: 7px; padding: 4px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-soft); }
.top-actions .btn { min-height: 32px; }
.user-button { min-width: 44px; border: 0; padding: 7px 4px; color: var(--text); background: transparent; font: inherit; font-weight: 700; cursor: pointer; }
.user-button:hover, .user-button:focus-visible { color: var(--accent); outline: none; }
.container { width: min(1040px, calc(100% - 40px)); margin: 0 auto; padding: 24px 0 120px; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.toolbar-left, .toolbar-right, .inline { display: flex; align-items: center; gap: 10px; }
.toolbar-left { min-width: 0; flex: 1; }
.tabs { position: fixed; left: 50%; bottom: 22px; z-index: 35; display: flex; gap: 4px; min-width: 420px; padding: 6px; border: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 92%, transparent); border-radius: 8px; box-shadow: 0 18px 55px rgba(0,0,0,.42); backdrop-filter: blur(20px); transform: translateX(-50%); }
.tab { flex: 1; border: 0; background: transparent; color: var(--muted); padding: 10px 16px; border-radius: 6px; white-space: nowrap; }
.tab.active { background: var(--accent-strong); color: var(--accent-text); box-shadow: 0 5px 16px rgba(0,0,0,0.24); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--text);
  background: var(--surface);
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.btn:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); background: var(--surface-strong); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--accent-text); }
.btn.good { color: var(--good); border-color: color-mix(in srgb, var(--good) 45%, var(--line)); }
.btn.danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 45%, var(--line)); }
.btn.icon { width: 38px; padding: 0; }
.btn.small { min-height: 31px; padding: 5px 9px; font-size: 12px; }

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.2);
}
.filterbar { display: grid; grid-template-columns: minmax(220px, 1fr) 210px 210px auto; gap: 10px; padding: 14px; margin-bottom: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; min-width: 0; }
.field label { color: var(--muted); font-size: 12px; }
.input, .select, .textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-soft);
  color: var(--text);
  outline: none;
  min-height: 40px;
  padding: 9px 11px;
}
.textarea { min-height: 128px; resize: vertical; line-height: 1.55; }
.input:focus, .select:focus, .textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--focus); }
.select option { background: var(--surface-strong); color: var(--text); }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { padding: 15px; }
.stat-label { font-size: 12px; color: var(--muted); }
.stat-value { margin-top: 6px; font-size: 24px; font-weight: 720; }
.stat-sub { margin-top: 5px; font-size: 11px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.service-card { position: relative; min-height: 194px; padding: 15px; overflow: hidden; }
.service-card.configured { border-color: color-mix(in srgb, var(--accent) 65%, var(--line)); }
.service-card.custom { border-left: 3px solid var(--warn); }
.service-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.service-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 7px; background: var(--surface-soft); font-size: 20px; }
.badge { display: inline-flex; align-items: center; gap: 5px; min-height: 23px; padding: 3px 7px; border-radius: 5px; font-size: 10px; font-weight: 700; border: 1px solid var(--line); color: var(--muted); }
.badge.good { color: var(--good); border-color: color-mix(in srgb, var(--good) 45%, var(--line)); }
.badge.bad { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 45%, var(--line)); }
.badge.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, var(--line)); }
.service-name { margin: 14px 0 4px; font-size: 15px; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.service-category { color: var(--muted); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.service-route { display: flex; align-items: center; gap: 7px; margin-top: 16px; margin-bottom: 46px; min-height: 24px; font-size: 12px; color: var(--muted); }
.service-route strong { color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.service-actions { position: absolute; left: 15px; right: 15px; bottom: 14px; display: flex; justify-content: space-between; align-items: center; gap: 8px; }

.node-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.node-card { min-height: 228px; padding: 18px; display: flex; flex-direction: column; }
.node-title { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.node-title h3 { margin: 0; font-size: 15px; }
.node-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 16px; }
.node-meta div { padding: 9px; border-radius: 6px; background: var(--surface-soft); min-width: 0; }
.node-meta span { display: block; color: var(--muted); font-size: 10px; }
.node-meta strong { display: block; margin-top: 4px; font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: auto; padding-top: 16px; }
.node-actions .btn { width: 100%; }

.ip-list { overflow: hidden; }
.traffic-summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px; margin-bottom: 14px; }
.traffic-summary span, .traffic-summary strong, .traffic-summary small { display: block; }
.traffic-summary span { color: var(--muted); font-size: 11px; }
.traffic-summary strong { margin-top: 4px; font-size: 24px; }
.traffic-summary small { margin-top: 5px; color: var(--muted); }
.ip-list-head, .ip-row { display: grid; grid-template-columns: minmax(150px, 1fr) 100px 130px 100px minmax(360px, auto); align-items: center; gap: 12px; padding: 14px 16px; }
.ip-list-head { color: var(--muted); font-size: 11px; border-bottom: 1px solid var(--line); }
.ip-row { cursor: pointer; transition: background .16s ease, box-shadow .16s ease; }
.ip-row:hover { background: var(--surface-soft); }
.ip-row:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.ip-row + .ip-row { border-top: 1px solid var(--line); }
.ip-main strong, .ip-main span { display: block; }
.ip-main strong { font-size: 14px; }
.ip-main span { margin-top: 4px; color: var(--muted); font-size: 11px; }
.ip-node-state { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; }
.ip-traffic strong, .ip-traffic span { display: block; }
.ip-traffic strong { font-size: 13px; }
.ip-traffic span { margin-top: 4px; color: var(--muted); font-size: 9px; white-space: nowrap; }
.ip-row-actions { display: flex; justify-content: flex-end; gap: 7px; }
.modal.ip-modal { width: min(940px, 100%); }
.ip-config-body { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; gap: 14px; min-height: min(620px, calc(100vh - 190px)); }
.ip-service-picker { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; align-content: start; overflow: auto; padding-right: 4px; }
.ip-service-option { min-width: 0; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-soft); }
.ip-service-option.selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--focus); }
.ip-service-option label { display: grid; grid-template-columns: auto 34px minmax(0, 1fr); align-items: center; gap: 8px; cursor: pointer; }
.ip-service-option input { width: 16px; height: 16px; accent-color: var(--accent); }
.ip-service-option .service-icon { width: 34px; height: 34px; font-size: 16px; }
.ip-service-name { min-width: 0; }
.ip-service-name strong, .ip-service-name small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ip-service-name strong { font-size: 12px; }
.ip-service-name small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.ip-service-option .select { min-height: 34px; margin-top: 10px; padding: 6px 8px; font-size: 11px; }
.service-audit { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 8px; color: var(--muted); font-size: 10px; }
.service-audit .badge { max-width: 72%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ip-selection { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; }
.ip-selection small { color: var(--muted); font-size: 10px; }
.toggle-row { display: flex; align-items: center; gap: 10px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-soft); cursor: pointer; }
.toggle-row input { width: 18px; height: 18px; accent-color: var(--accent); }
.toggle-row strong, .toggle-row small { display: block; }
.toggle-row small { margin-top: 3px; color: var(--muted); }

.empty { padding: 48px 18px; text-align: center; color: var(--muted); }
.empty strong { display: block; color: var(--text); margin-bottom: 8px; }
.loading { min-height: 240px; display: grid; place-items: center; color: var(--muted); }
.spinner { width: 22px; height: 22px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-box { width: min(360px, 100%); padding: 28px; }
.login-box h1 { margin: 0; font-size: 24px; }
.login-box p { color: var(--muted); margin: 8px 0 22px; font-size: 13px; }
.form-stack { display: grid; gap: 13px; }
.form-error { min-height: 18px; color: var(--bad); font-size: 12px; }

.modal-backdrop { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 18px; background: rgba(3,5,9,.72); backdrop-filter: blur(8px); }
.modal { width: min(760px, 100%); max-height: min(860px, calc(100vh - 36px)); display: flex; flex-direction: column; overflow: hidden; }
.modal.medium { width: min(480px, 100%); }
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.modal-head h2 { margin: 0; font-size: 17px; }
.modal-head p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }
.modal-body { padding: 18px 20px; overflow: auto; }
.modal-foot { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 14px 20px; border-top: 1px solid var(--line); }
.modal-foot-right { display: flex; gap: 8px; margin-left: auto; }
.server-list { display: grid; gap: 8px; margin-top: 12px; }
.server-option { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-soft); }
.server-option.selected { border-color: var(--accent); box-shadow: 0 0 0 3px var(--focus); }
.server-option input { width: 17px; height: 17px; accent-color: var(--accent); }
.server-name { min-width: 0; }
.server-name strong, .server-name span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.server-name span { margin-top: 3px; color: var(--muted); font-size: 11px; }
.test-results { display: grid; gap: 7px; margin-top: 14px; }
.test-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; padding: 9px 10px; border-radius: 6px; background: var(--surface-soft); font-size: 12px; }
.test-row span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.unlock-summary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
.unlock-summary div { padding: 13px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-soft); }
.unlock-summary span, .unlock-summary strong { display: block; }
.unlock-summary span { color: var(--muted); font-size: 11px; }
.unlock-summary strong { margin-top: 5px; font-size: 22px; }
.unlock-wait { display: flex; align-items: center; gap: 10px; padding: 12px; margin-bottom: 12px; color: var(--muted); font-size: 12px; }
.unlock-results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.unlock-result-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px; min-height: 58px; padding: 10px 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-soft); }
.unlock-result-row strong, .unlock-result-row span { display: block; }
.unlock-result-row strong { font-size: 12px; }
.unlock-result-row div > span { margin-top: 4px; color: var(--muted); font-size: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.code { margin-top: 12px; padding: 12px; border-radius: 7px; background: #070a0f; color: #bcebcf; overflow: auto; font: 12px/1.55 ui-monospace, SFMono-Regular, Consolas, monospace; }
.hint { color: var(--muted); font-size: 11px; line-height: 1.55; }
.form-columns { display: grid; grid-template-columns: 1fr 120px; gap: 12px; }
.segmented { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; padding: 4px; border-radius: 7px; background: var(--surface-soft); }
.segment { min-height: 38px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); }
.segment.active { background: var(--surface-strong); color: var(--text); box-shadow: 0 3px 12px rgba(0,0,0,.2); }
.node-summary { display: grid; gap: 6px; padding: 16px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-soft); }
.node-summary strong { font-size: 16px; }
.node-summary span { color: var(--muted); font-size: 12px; }
.code { white-space: pre-wrap; overflow-wrap: anywhere; user-select: all; }

#toast-root { position: fixed; right: 18px; bottom: 18px; z-index: 80; display: grid; gap: 8px; }
.toast { max-width: min(390px, calc(100vw - 36px)); padding: 11px 13px; border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 7px; background: var(--surface-strong); box-shadow: 0 14px 35px rgba(0,0,0,.3); font-size: 12px; }
.toast.error { border-left-color: var(--bad); }
.toast.good { border-left-color: var(--good); }

@media (max-width: 980px) {
  .service-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .node-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .filterbar { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ip-list-head { display: none; }
  .ip-row { grid-template-columns: minmax(160px, 1fr) auto auto; }
  .ip-node-state { grid-column: 1; }
  .ip-row-actions { grid-column: 2 / -1; justify-content: flex-end; }
  .ip-service-picker { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .topbar { width: min(100% - 24px, 1120px); align-items: flex-start; }
  .brand-meta { max-width: 190px; }
  .container { width: min(100% - 20px, 1240px); padding-top: 14px; }
  .toolbar { align-items: stretch; flex-direction: column; }
  .toolbar-left, .toolbar-right { width: 100%; overflow-x: auto; }
  .toolbar-right .btn { flex: 1; }
  .filterbar { grid-template-columns: 1fr; }
  .service-grid, .node-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
  .service-card { min-height: 202px; padding: 12px; }
  .service-actions { left: 12px; right: 12px; }
  .stats { gap: 8px; }
  .stat { padding: 12px; }
  .stat-value { font-size: 20px; }
  .modal-backdrop { padding: 8px; align-items: end; }
  .modal { max-height: calc(100vh - 16px); border-radius: 8px 8px 0 0; }
  .tabs { bottom: 10px; width: min(340px, calc(100% - 20px)); min-width: 0; }
  .tab { padding-inline: 9px; font-size: 12px; }
  .ip-row { grid-template-columns: 1fr auto; }
  .ip-traffic { grid-column: 1; }
  .ip-node-state { justify-content: flex-end; }
  .ip-row-actions { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, 1fr); }
  .ip-service-picker { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .unlock-results { grid-template-columns: 1fr; }
  #toast-root { top: 88px; right: 10px; bottom: auto; left: 10px; }
  .toast { max-width: 180px; margin-left: auto; }
}

@media (max-width: 430px) {
  .service-grid, .node-grid { grid-template-columns: 1fr; }
  .top-actions .user-button { display: none; }
  .form-columns { grid-template-columns: 1fr; }
  .ip-service-picker { grid-template-columns: 1fr; }
}