:root {
  color-scheme: light;
  --bg: #eef4fb;
  --bg-2: #e8f0f8;
  --bg-grid: rgba(44, 121, 210, 0.08);
  --panel: rgba(255, 255, 255, 0.9);
  --panel-solid: #ffffff;
  --ink: #142033;
  --muted: #66758a;
  --line: #d8e3ef;
  --line-strong: #c4d5e7;
  --accent: #2c79d2;
  --accent-strong: #175dae;
  --accent-soft: #e6f1ff;
  --accent-soft-2: #f2f7fd;
  --danger: #b63845;
  --shadow: 0 18px 55px rgba(46, 91, 139, 0.14);
  --toggle-bg: rgba(255, 255, 255, 0.82);
  --toggle-ink: #2b4a73;
  --toggle-active: #2c79d2;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1520;
  --bg-2: #111c2a;
  --bg-grid: rgba(120, 165, 224, 0.14);
  --panel: rgba(17, 25, 37, 0.9);
  --panel-solid: #111925;
  --ink: #e7eef8;
  --muted: #9fb0c7;
  --line: #253548;
  --line-strong: #314659;
  --accent: #5ca0ff;
  --accent-strong: #3481eb;
  --accent-soft: rgba(92, 160, 255, 0.14);
  --accent-soft-2: rgba(92, 160, 255, 0.09);
  --danger: #e26a74;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.38);
  --toggle-bg: rgba(18, 27, 40, 0.82);
  --toggle-ink: #d7e6fb;
  --toggle-active: #8dbbff;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 22% 18%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 28%),
    radial-gradient(circle at 82% 4%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 26%),
    linear-gradient(135deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 60%, var(--bg-2)) 52%, var(--bg-2) 100%);
  color: var(--ink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(115deg, transparent 0 82px, var(--bg-grid) 83px, transparent 84px),
    radial-gradient(circle, color-mix(in srgb, var(--accent) 42%, transparent) 1px, transparent 2px);
  background-size: 190px 150px, 68px 68px;
  opacity: 0.65;
  pointer-events: none;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
  line-height: 1.1;
}

h2 {
  font-size: 18px;
}

h3 {
  margin: 16px 0 8px;
  color: color-mix(in srgb, var(--ink) 74%, var(--muted));
  font-size: 13px;
  font-weight: 750;
  text-transform: uppercase;
}

p {
  color: var(--muted);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid rgba(216, 227, 239, 0.9);
  background: var(--panel);
  box-shadow: 0 10px 35px rgba(70, 105, 145, 0.09);
  backdrop-filter: blur(18px);
}

.brand,
.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand p {
  margin-top: 5px;
}

.brand-mark {
  position: relative;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--accent) 0 4px, transparent 5px),
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--panel-solid) 96%, var(--accent)) 0 32%, color-mix(in srgb, var(--accent) 14%, var(--panel-solid)) 33% 100%);
  box-shadow: 0 0 0 7px color-mix(in srgb, var(--accent) 7%, transparent);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 8px 3px;
  border: 1.5px solid color-mix(in srgb, var(--accent) 58%, transparent);
  border-radius: 50%;
  transform: rotate(28deg);
}

.brand-mark::after {
  transform: rotate(-28deg);
}

.brand-mark.large {
  width: 42px;
  height: 42px;
}

main {
  padding: 20px 28px 28px;
}

.settings,
.details,
aside {
  border: 1px solid color-mix(in srgb, var(--line) 95%, transparent);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.settings {
  margin-bottom: 18px;
  padding: 16px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
}

aside {
  min-height: 560px;
  overflow: hidden;
}

.list-head {
  padding: 14px;
  border-bottom: 1px solid var(--line);
}

.list-head input {
  margin-top: 10px;
}

.router-list {
  max-height: 650px;
  overflow: auto;
}

.router-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  padding: 13px 14px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.router-item:hover,
.router-item.active {
  background: var(--accent-soft);
}

.router-item.active {
  box-shadow: inset 3px 0 0 var(--accent);
}

.router-item strong {
  display: block;
  font-size: 15px;
}

.router-item-main {
  flex: 1;
  min-width: 0;
}

.router-item-main > span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.2;
}

.router-item-main small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.router-status-dot {
  width: 11px;
  height: 11px;
  flex: 0 0 auto;
  margin-top: 0;
  border-radius: 50%;
  background: #e4b83f;
  box-shadow: 0 0 0 4px rgba(228, 184, 63, 0.13);
}

.router-status-dot.online {
  background: #22c985;
  box-shadow: 0 0 0 4px rgba(34, 201, 133, 0.15);
}

.router-status-dot.offline {
  background: #f0646f;
  box-shadow: 0 0 0 4px rgba(240, 100, 111, 0.15);
}

.router-status-dot.expected {
  background: #e4b83f;
  box-shadow: 0 0 0 4px rgba(228, 184, 63, 0.15);
}

.details {
  min-height: 560px;
  padding: 18px;
}

.empty {
  min-height: 520px;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.hidden {
  display: none;
}

.editor-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

#editorTitle {
  display: flex;
  align-items: center;
  gap: 9px;
}

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

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 9px 10px;
  background: color-mix(in srgb, var(--panel-solid) 92%, var(--accent-soft-2));
  color: var(--ink);
  font: inherit;
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  background: var(--panel-solid);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
}

textarea {
  min-height: 80px;
  resize: none;
  overflow: auto;
  font-family: Consolas, "Cascadia Mono", ui-monospace, monospace;
  font-size: 13px;
}

#notes {
  height: 92px;
}

#openwrtOutput {
  height: 430px;
}

#peerOutput {
  height: 190px;
}

#keysOutput {
  height: 132px;
}

#allPeers {
  height: 430px;
}

button,
.ghost-button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  padding: 0 14px;
  background: var(--accent);
  color: white;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(44, 121, 210, 0.2);
}

button:hover,
.ghost-button:hover {
  background: var(--accent-strong);
}

.ghost-button {
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--panel-solid) 75%, var(--accent-soft-2));
  color: color-mix(in srgb, var(--ink) 78%, var(--accent));
  box-shadow: none;
}

.ghost-button:hover {
  border-color: rgba(44, 121, 210, 0.42);
  background: color-mix(in srgb, var(--panel-solid) 88%, var(--accent-soft));
  color: var(--accent-strong);
}

.danger {
  background: var(--danger);
  box-shadow: 0 8px 22px rgba(182, 56, 69, 0.18);
}

.actions,
.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.logout-form {
  margin: 0;
}

.button-row {
  margin: 16px 0;
}

.status-line {
  min-height: 20px;
  margin: -6px 0 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.status-line.ok {
  color: #1f8a5b;
}

.status-line.error {
  color: var(--danger);
}

html[data-theme="dark"] .status-line.ok {
  color: #69d39d;
}

.outputs {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 16px;
}

#allPeers {
  width: min(900px, 80vw);
}

dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--panel-solid);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.login-page {
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 27%),
    linear-gradient(135deg, color-mix(in srgb, var(--bg) 95%, white) 0%, color-mix(in srgb, var(--bg) 76%, var(--bg-2)) 48%, color-mix(in srgb, var(--bg-2) 92%, var(--accent)) 100%);
}

.login-page::before {
  display: none;
}

#mesh {
  position: fixed;
  inset: 0;
  z-index: 0;
}

.login-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(420px, 100%);
  padding: 34px 36px 38px;
  border: 1px solid color-mix(in srgb, var(--line) 95%, transparent);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 24px 80px rgba(44, 91, 139, 0.2);
  backdrop-filter: blur(20px);
}

.login-brand {
  justify-content: center;
}

.login-brand strong {
  color: var(--ink);
  font-size: 24px;
  line-height: 1;
}

.login-brand span {
  color: var(--accent);
}

.login-subtitle {
  margin: 12px 0 28px;
  text-align: center;
}

.login-card label + label {
  margin-top: 18px;
}

.login-error {
  margin-top: 14px;
  color: var(--danger);
  font-size: 13px;
  font-weight: 700;
}

.login-submit {
  width: 100%;
  margin-top: 26px;
  min-height: 50px;
  font-size: 16px;
}

.icon-button {
  width: 38px;
  padding: 0;
  background: var(--toggle-bg);
  color: var(--toggle-ink);
  border: 1px solid var(--line-strong);
  box-shadow: none;
}

.icon-button:hover {
  background: color-mix(in srgb, var(--toggle-bg) 80%, var(--accent));
  color: var(--accent);
}

.theme-icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-icon-moon {
  display: none;
}

html[data-theme="dark"] .theme-icon-sun {
  display: none;
}

html[data-theme="dark"] .theme-icon-moon {
  display: block;
}

html[data-theme="dark"] .theme-icon {
  color: var(--toggle-active);
}

html[data-theme="dark"] .login-card {
  background: rgba(17, 25, 37, 0.82);
}

@media (max-width: 900px) {
  .topbar,
  .workspace,
  .outputs,
  .grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    display: grid;
  }

  main {
    padding: 14px;
  }
}

@media (max-width: 520px) {
  .login-card {
    padding: 28px 22px 30px;
  }

  .actions button,
  .actions .ghost-button {
    flex: 1 1 auto;
  }
}