:root {
  color-scheme: light;
  --bg: #f6f5f1;
  --surface: #fffefa;
  --text: #293b3c;
  --muted: #65716f;
  --line: #dedfd7;
  --blue: #e3eef5;
  --sage: #e6eddf;
  --peach: #f6e7db;
  --accent: #315c58;
  --accent-hover: #244b47;
  --logo: #187b9b;
  --track: #e1e5dd;
  --console-bg: #edf0e9;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #181a1b;
  --surface: #222527;
  --text: #e8ece4;
  --muted: #aebbb3;
  --line: #383d40;
  --blue: #2c3942;
  --sage: #343e33;
  --peach: #443a33;
  --accent: #c2d9cd;
  --accent-hover: #d5e5db;
  --logo: #8bc8dc;
  --track: #383d40;
  --console-bg: #1c1f21;
}

* { box-sizing: border-box; }
html.no-transition *, html.no-transition { transition: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  max-width: 1200px;
  margin: 0 auto;
  padding: 27px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand { display: flex; align-items: center; gap: 23px; }
.cisco-logo { width: 78px; height: 46px; color: var(--logo); }
.brand-divider { height: 27px; width: 1px; background: var(--line); }
.brand-label { color: var(--muted); font-size: 13px; font-weight: 500; }
.theme-switch-wrapper { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 12px; }
.theme-switch { position: relative; display: inline-flex; width: 32px; height: 19px; }
.theme-switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; }
.slider { position: absolute; inset: 0; border-radius: 20px; background: var(--line); cursor: pointer; }
.slider::before { content: ""; position: absolute; width: 13px; height: 13px; left: 3px; top: 3px; border-radius: 50%; background: var(--surface); transition: transform 0.2s; }
.theme-switch input:checked + .slider { background: var(--accent); }
.theme-switch input:checked + .slider::before { transform: translateX(13px); }
.theme-switch input:focus-visible + .slider { outline: 2px solid var(--accent); outline-offset: 4px; }

.container { max-width: 900px; margin: 50px auto 0; padding: 0 32px; }
.page-heading { margin-bottom: 34px; }
.section-label { font-size: 10px; font-weight: 700; letter-spacing: 1.8px; color: var(--muted); }
h1 { margin: 0; font-size: clamp(34px, 5vw, 48px); font-weight: 600; line-height: 1.15; letter-spacing: -1.9px; }
.updater-panel { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
h2 { margin: 0; font-size: 16px; font-weight: 600; letter-spacing: -0.2px; }
.configuration { padding: 29px 28px 31px; }
.firmware-folder-option { margin-bottom: 25px; }
.firmware-folder-option select { max-width: 270px; }
.firmware-folder-option .notice { margin-top: 8px; overflow-wrap: anywhere; }
fieldset { min-width: 0; border: 0; margin: 0; padding: 0; }
legend { padding: 0; font-size: 14px; font-weight: 600; }
.step-number { margin-right: 9px; font-size: 11px; color: var(--muted); font-weight: 500; font-variant-numeric: tabular-nums; }
.selection-toolbar { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin: 8px 0 18px; }
button.select-all-button { padding: 7px 10px; gap: 7px; background: transparent; color: var(--text); border: 1px solid var(--line); font-size: 12px; }
button.select-all-button:hover { background: var(--sage); }
.chip-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.chip-card { position: relative; padding: 19px 17px 17px; border: 1px solid transparent; border-radius: 7px; cursor: pointer; -webkit-user-select: none; user-select: none; transition: border-color 0.15s, opacity 0.15s; }
.chip-main { display: block; cursor: pointer; }
.chip-mgmt { cursor: default; }
.chip-mgmt { background: var(--blue); }
.chip-ui { background: var(--sage); }
.chip-net { background: var(--peach); }
.chip-card:has(input:checked) { border-color: var(--accent); }
.chip-card:has(input:not(:checked)) { opacity: 0.65; }
.chip-card:hover { border-color: var(--muted); }
input[type="checkbox"] { width: 16px; height: 16px; margin: 0; accent-color: var(--accent); cursor: pointer; flex-shrink: 0; }
.chip-card input { position: absolute; top: 20px; right: 16px; }
.chip-details { display: flex; flex-direction: column; gap: 12px; padding-right: 24px; }
.chip-details > i { font-size: 19px; }
.chip-details strong { font-size: 17px; letter-spacing: 0.3px; font-weight: 600; }
#mgmtVersionOptions { margin-top: 18px; }
.select-label { display: block; margin-bottom: 7px; font-size: 12px; font-weight: 600; }
select { width: 100%; min-width: 0; min-height: 39px; padding: 8px; background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 5px; font: inherit; font-size: 12px; cursor: pointer; }
fieldset:disabled { opacity: 0.5; }
.update-area { border-top: 1px solid var(--line); padding: 23px 28px 20px; }
.update-action { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.section-label { font-size: 9px; letter-spacing: 1.3px; }
#status { margin: 5px 0 0; font-size: 14px; overflow-wrap: anywhere; }
button { flex-shrink: 0; display: inline-flex; gap: 29px; align-items: center; justify-content: center; border: 0; border-radius: 5px; background: var(--accent); color: var(--surface); padding: 13px 19px; font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; transition: background-color 0.15s; }
button:hover { background: var(--accent-hover); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
progress { display: block; appearance: none; width: 100%; height: 5px; margin-top: 21px; border: 0; border-radius: 4px; overflow: hidden; background: var(--track); color: var(--accent); }
progress::-webkit-progress-bar { background: var(--track); border-radius: 4px; }
progress::-webkit-progress-value { background: var(--accent); border-radius: 4px; }
progress::-moz-progress-bar { background: var(--accent); border-radius: 4px; }
.action-help { margin: 10px 0 0; font-size: 11px; color: var(--muted); }
.compatibility-note { display: flex; gap: 11px; align-items: flex-start; margin: 20px 3px 24px; color: var(--muted); }
.info-icon { margin-top: 4px; flex-shrink: 0; font-size: 13px; }
.notice { margin: 0; font-size: 12px; line-height: 1.7; color: var(--muted); }
.advanced-toggle { display: flex; align-items: center; justify-content: space-between; gap: 16px; border-top: 1px solid var(--line); padding: 21px 3px; }
.advanced-toggle label { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 500; cursor: pointer; }
.advanced-toggle > span { color: var(--muted); font-size: 11px; }
#advancedSection { padding: 22px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); }
.manual-option { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 13px; }
#advancedSection .notice { margin: 12px 0 24px; }
.console { margin-top: 12px; padding: 16px; height: 220px; overflow-y: auto; background: var(--console-bg); color: var(--text); border: 1px solid var(--line); border-radius: 5px; font-family: inherit; font-size: 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.page-footer { display: flex; gap: 12px; margin: 26px 0 30px; color: var(--muted); font-size: 10px; }
.page-footer span { color: var(--line); }
.hidden { display: none; }
:is(button, select, input):focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

@media (max-width: 640px) {
  .site-header { padding: 22px 24px; }
  .brand { gap: 15px; }
  .brand-label { font-size: 12px; }
  .container { margin-top: 26px; padding: 0 24px; }
  .configuration, .update-area { padding-left: 20px; padding-right: 20px; }
  .chip-options { grid-template-columns: 1fr; gap: 8px; }
  .chip-card { padding: 14px 11px; }
  .chip-card input { top: 14px; right: 10px; width: 14px; height: 14px; }
  .chip-details { padding-right: 15px; }
  .chip-details strong { font-size: 14px; }
  .update-action { flex-direction: column; align-items: stretch; gap: 18px; }
  .advanced-toggle > span { display: none; }
}

@media (max-width: 370px) {
  .brand-divider, .brand-label { display: none; }
  .selection-toolbar { align-items: flex-start; }
  .container { padding: 0 16px; }
  .chip-options { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}