:root {
    color-scheme: light;
    --bg: #e9ebec;
    --desk: #dfe2e4;
    --panel: #ffffff;
    --panel-2: #f2f4f5;
    --bar: #ffffff;
    --ink: #1d2124;
    --muted: #5f686d;
    --line: #cdd2d5;
    --line-soft: #dde1e3;
    --teal: #1d8f9e;
    --teal-soft: rgba(29,143,158,.12);
    --orange: #d1750a;
    --shadow: 0 1px 2px rgba(20,25,28,.10), 0 10px 26px rgba(20,25,28,.08);
    --sans: 'Fira Sans', 'Segoe UI', system-ui, sans-serif;
    --mono: 'Fira Mono', ui-monospace, monospace;
  }

  :root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #1c1f21;
    --desk: #17191b;
    --panel: #2b2f32;
    --panel-2: #33383b;
    --bar: #232628;
    --ink: #f1f3f4;
    --muted: #9fa7ac;
    --line: #3f4549;
    --line-soft: #34393d;
    --teal: #48b9c7;
    --teal-soft: rgba(72,185,199,.14);
    --orange: #ffa71d;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 14px 32px rgba(0,0,0,.34);
  }

  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      color-scheme: dark;
      --bg: #1c1f21;
      --desk: #17191b;
      --panel: #2b2f32;
      --panel-2: #33383b;
      --bar: #232628;
      --ink: #f1f3f4;
      --muted: #9fa7ac;
      --line: #3f4549;
      --line-soft: #34393d;
      --teal: #48b9c7;
      --teal-soft: rgba(72,185,199,.14);
      --orange: #ffa71d;
      --shadow: 0 1px 2px rgba(0,0,0,.4), 0 14px 32px rgba(0,0,0,.34);
    }
  }

  * { box-sizing: border-box; }

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    background: var(--desk);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 46px;
  }

  h1, h2, h3 { margin: 0; font-weight: 700; line-height: 1.2; letter-spacing: -.012em; }
  p { margin: 0; }
  a { color: inherit; text-decoration: none; }

  :focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 2px;
    border-radius: 3px;
  }

  .wrap { width: 100%; max-width: 940px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

  /* ---------- top panel ---------- */
  .panelbar {
    position: sticky; top: 0; z-index: 40;
    background: var(--bar);
    border-bottom: 1px solid var(--line);
  }
  .panelbar-inner {
    display: flex; align-items: center; gap: 4px;
    height: 46px;
  }
  .brand {
    display: flex; align-items: center; gap: 9px;
    font-weight: 700; font-size: 15px;
    padding: 5px 10px 5px 4px; margin-right: 8px;
  }
  .brand-mark {
    width: 24px; height: 24px; border-radius: 5px;
    background: var(--teal);
    display: grid; place-items: center; flex: none;
  }
  .brand-mark svg { width: 17px; height: 15px; display: block; }

  .panel-link {
    font-size: 14px; color: var(--muted);
    padding: 6px 11px; border-radius: 5px;
  }
  .panel-link:hover { background: var(--panel-2); color: var(--ink); }
  .panel-spacer { flex: 1; }

  .tray { display: flex; align-items: center; gap: 2px; }

  .tray-btn {
    background: none; border: 0; cursor: pointer;
    color: var(--muted);
    font: inherit; font-size: 13px;
    height: 32px; padding: 0 9px; border-radius: 5px;
    display: inline-flex; align-items: center; gap: 5px;
  }
  .tray-btn:hover { background: var(--panel-2); color: var(--ink); }
  .tray-btn { transition: background .15s ease, color .15s ease; }
  .tray-btn:active { transform: scale(.9); }
  .tray-btn svg { width: 15px; height: 15px; }
  #langBtnLabel { font-family: var(--mono); font-weight: 500; }

  .lang-wrap { position: relative; }
  .lang-list {
    position: absolute; right: 0; top: calc(100% + 6px);
    background: var(--panel); border: 1px solid var(--line);
    border-radius: 7px; box-shadow: var(--shadow);
    list-style: none; margin: 0; padding: 4px;
    width: 176px; max-height: 300px; overflow-y: auto;
    z-index: 60;
    opacity: 0; transform: translateY(-4px) scale(.98);
    pointer-events: none;
    transition: opacity .15s ease, transform .15s cubic-bezier(.2,.7,.3,1);
    transform-origin: top right;
  }
  .lang-wrap.open .lang-list { opacity: 1; transform: none; pointer-events: auto; }
  .lang-option {
    display: flex; justify-content: space-between; align-items: center;
    gap: 8px; padding: 6px 9px; border-radius: 5px;
    font-size: 14px; cursor: pointer; color: var(--muted);
  }
  .lang-option:hover { background: var(--panel-2); color: var(--ink); }
  .lang-option { transition: background .12s ease, color .12s ease; }
  .lang-option.active { color: var(--ink); background: var(--teal-soft); }
  .lang-code { font-family: var(--mono); font-size: 11.5px; opacity: .7; }

  .icon-sun, .icon-moon {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%,-50%) scale(1) rotate(0deg);
    transition: opacity .25s ease, transform .35s cubic-bezier(.2,.7,.3,1);
    opacity: 1;
  }
  #themeToggle { position: relative; }
  .icon-moon { opacity: 0; transform: translate(-50%,-50%) scale(.4) rotate(-90deg); }
  [data-theme="dark"] .icon-sun, :root:not([data-theme="light"]) .icon-sun { opacity: 0; transform: translate(-50%,-50%) scale(.4) rotate(90deg); }
  [data-theme="dark"] .icon-moon, :root:not([data-theme="light"]) .icon-moon { opacity: 1; transform: translate(-50%,-50%) scale(1) rotate(0deg); }
  [data-theme="light"] .icon-sun { opacity: 1; transform: translate(-50%,-50%) scale(1) rotate(0deg); }
  [data-theme="light"] .icon-moon { opacity: 0; transform: translate(-50%,-50%) scale(.4) rotate(-90deg); }
  @media (prefers-reduced-motion: reduce) {
    .icon-sun, .icon-moon { transition: opacity .15s ease; transform: translate(-50%,-50%) !important; }
  }

  /* ---------- window chrome ---------- */
  .win {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 9px;
    box-shadow: var(--shadow);
    overflow: hidden;
  }
  .titlebar {
    display: flex; align-items: center; gap: 10px;
    height: 38px; padding: 0 12px;
    background: var(--bar);
    border-bottom: 1px solid var(--line);
  }
  .dots { display: flex; gap: 6px; flex: none; }
  .dots i { width: 11px; height: 11px; border-radius: 50%; background: var(--line); display: block; }
  .win:hover .dots i:nth-child(1) { background: #e05c4b; }
  .win:hover .dots i:nth-child(2) { background: #e0a53f; }
  .win:hover .dots i:nth-child(3) { background: #55b26a; }
  .dots i { transition: background .2s ease; }
  .title {
    font-family: var(--mono); font-size: 12.5px; color: var(--muted);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    flex: 1;
  }
  .collapse {
    background: none; border: 0; cursor: pointer; padding: 4px 6px;
    color: var(--muted); border-radius: 4px; line-height: 0;
    transition: background .15s ease, color .15s ease;
  }
  .collapse:hover { background: var(--panel-2); color: var(--ink); }
  .collapse:active { transform: scale(.88); }
  .collapse svg { width: 13px; height: 13px; transition: transform .25s cubic-bezier(.2,.7,.3,1); }
  .win.collapsed .collapse svg { transform: rotate(-90deg); }
  .titlebar { user-select: none; }

  /* smooth collapse: grid-rows trick animates from auto height */
  .win-body-wrap {
    display: grid;
    grid-template-rows: 1fr;
    transition: grid-template-rows .32s cubic-bezier(.2,.7,.3,1);
  }
  .win.collapsed .win-body-wrap { grid-template-rows: 0fr; }
  .win-body-inner { overflow: hidden; min-height: 0; }
  @media (prefers-reduced-motion: reduce) {
    .win-body-wrap { transition: none; }
  }

  main { padding: 34px 0 0; }
  .stack > * + * { margin-top: 22px; }

  /* ---------- hero window ---------- */
  .hero-body { padding: 44px 40px 40px; }
  .hero h1 { font-size: clamp(30px, 5.2vw, 46px); max-width: 15ch; }
  .hero .lead {
    margin-top: 18px; max-width: 58ch;
    font-size: 17px; color: var(--muted);
  }
  .actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; }
  .btn {
    display: inline-flex; align-items: center; justify-content: center;
    height: 40px; padding: 0 20px; border-radius: 6px;
    font-size: 15px; font-weight: 500; border: 1px solid transparent;
    transition: background .15s ease, border-color .15s ease;
  }
  .btn-fill { background: var(--teal); color: #08272b; font-weight: 700; }
  [data-theme="dark"] .btn-fill { color: #10282c; }
  .btn-fill:hover { filter: brightness(1.08); }
  .btn:active { transform: scale(.96); }
  .btn { transition: background .15s ease, filter .15s ease, transform .1s ease, border-color .15s ease; }
  .btn-line { border-color: var(--line); color: var(--ink); }
  .btn-line:hover { background: var(--panel-2); }

  .hero-meta {
    margin-top: 30px; padding-top: 18px;
    border-top: 1px solid var(--line-soft);
    display: flex; flex-wrap: wrap; gap: 8px 26px;
    font-size: 13.5px; color: var(--muted);
  }
  .hero-meta b { color: var(--ink); font-weight: 500; }

  /* ---------- tools ---------- */
  .tools-intro { padding: 26px 24px 20px; }
  .tools-intro h2 { font-size: 21px; }
  .tools-intro p { margin-top: 6px; color: var(--muted); font-size: 15px; max-width: 54ch; }

  .app {
    display: grid;
    grid-template-columns: 40px 1fr auto;
    gap: 16px; align-items: center;
    padding: 15px 24px;
    border-top: 1px solid var(--line-soft);
    transition: background .18s ease, transform .18s cubic-bezier(.2,.7,.3,1);
    position: relative;
  }
  .app:hover { background: var(--panel-2); transform: translateX(3px); }
  .app:active { transform: translateX(3px) scale(.995); }
  .app-icon { transition: transform .18s cubic-bezier(.2,.7,.3,1); }
  .app:hover .app-icon { transform: scale(1.08); }
  .app-icon {
    width: 40px; height: 40px; border-radius: 9px;
    display: grid; place-items: center;
  }
  .app-icon svg { width: 23px; height: 23px; }
  .app h3 { font-size: 15.5px; font-weight: 500; }
  .app p { color: var(--muted); font-size: 14px; margin-top: 2px; max-width: 52ch; }
  .app-tag {
    display: inline-block; margin-top: 7px;
    font-family: var(--mono); font-size: 11.5px;
    color: var(--muted); background: var(--panel-2);
    border: 1px solid var(--line-soft);
    padding: 1px 7px; border-radius: 4px;
  }
  .app:hover .app-tag { background: var(--panel); }
  .app-open {
    font-size: 14px; font-weight: 500; color: var(--teal);
    border: 1px solid var(--line); border-radius: 6px;
    padding: 7px 15px; white-space: nowrap;
    transition: border-color .18s ease, background .18s ease, transform .12s ease;
  }
  .app:active .app-open { transform: scale(.95); }
  .app:hover .app-open { border-color: var(--teal); background: var(--teal-soft); }

  .app.pending { opacity: .62; }
  .app.pending .app-icon {
    border: 1px dashed var(--line); background: none;
    color: var(--muted); font-family: var(--mono); font-size: 17px;
  }
  .app.pending .app-open { color: var(--muted); border-style: dashed; }
  .app.pending:hover .app-open { border-color: var(--line); background: none; }

  /* ---------- readme ---------- */
  .readme-body { padding: 30px 32px 28px; }
  .readme-body h2 { font-size: 24px; max-width: 20ch; }
  .readme-body p { margin-top: 14px; color: var(--muted); max-width: 62ch; font-size: 15.5px; }
  .signoff {
    margin-top: 26px; padding-top: 18px;
    border-top: 1px solid var(--line-soft);
    display: flex; align-items: center; gap: 12px;
  }
  .avatar {
    width: 38px; height: 38px; border-radius: 8px; flex: none;
    background: var(--panel-2); border: 1px solid var(--line);
    display: grid; place-items: center;
    font-family: var(--mono); font-size: 14px; color: var(--teal);
  }
  .signoff span { font-size: 13.5px; color: var(--muted); }
  .status-dot {
    display: inline-block; width: 7px; height: 7px; border-radius: 50%;
    background: #55b26a; margin-right: 7px; vertical-align: 1px;
  }

  /* ---------- bottom status bar ---------- */
  .statusbar {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
    background: var(--bar); border-top: 1px solid var(--line);
    font-family: var(--mono); font-size: 12px; color: var(--muted);
  }
  .statusbar-inner {
    display: flex; align-items: center; gap: 18px;
    height: 38px; overflow-x: auto; scrollbar-width: none;
  }
  .statusbar-inner::-webkit-scrollbar { display: none; }
  .statusbar .sep { flex: 1; }
  .statusbar a:hover { color: var(--ink); text-decoration: underline; }
  .statusbar .seg { white-space: nowrap; }

  /* ---------- one opening moment ---------- */
  .boot { opacity: 0; transform: translateY(6px) scale(.992); }
  .booted .boot { opacity: 1; transform: none; transition: opacity .34s ease, transform .34s cubic-bezier(.2,.7,.3,1); }
  .booted .boot:nth-child(2) { transition-delay: .07s; }
  .booted .boot:nth-child(3) { transition-delay: .13s; }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .boot, .booted .boot { opacity: 1; transform: none; transition: none; }
  }

  @media (max-width: 760px) {
    .panel-link { display: none; }
    .hero-body { padding: 32px 22px 28px; }
    .readme-body { padding: 24px 22px; }
    .tools-intro { padding: 22px 18px 16px; }
    .app { grid-template-columns: 34px 1fr; padding: 14px 18px; }
    .app-icon { width: 34px; height: 34px; }
    .app-open { grid-column: 2; justify-self: start; }
  }

  /* ---------- secondary pages: legal + tip ---------- */
  .page-hero { padding: 34px 40px 26px; }
  .page-hero .eyebrow {
    font-family: var(--mono); font-size: 12px; color: var(--teal);
    text-transform: lowercase;
  }
  .page-hero h1 { font-size: clamp(26px, 4vw, 34px); margin-top: 8px; }
  .page-hero .updated { margin-top: 10px; color: var(--muted); font-size: 13.5px; font-family: var(--mono); }

  .legal-body { padding: 8px 40px 36px; }
  .legal-body > .intro { color: var(--muted); font-size: 15.5px; max-width: 62ch; margin-bottom: 8px; }
  .legal-item { padding: 20px 0; border-top: 1px solid var(--line-soft); }
  .legal-item h2 {
    font-size: 16px; font-weight: 600; display: flex; align-items: baseline; gap: 10px;
  }
  .legal-item .num { font-family: var(--mono); font-size: 12.5px; color: var(--teal); font-weight: 500; }
  .legal-item p, .legal-item li { color: var(--muted); font-size: 14.5px; margin-top: 10px; max-width: 66ch; }
  .legal-item ul { margin: 10px 0 0; padding-left: 20px; }
  .legal-item li + li { margin-top: 8px; }
  .legal-item a { color: var(--teal); text-decoration: underline; text-decoration-color: var(--line-strong); text-underline-offset: 2px; }
  .legal-note {
    margin: 24px 0 0; padding: 14px 16px; border-radius: 8px;
    background: var(--panel-2); border: 1px solid var(--line-soft);
    font-size: 13.5px; color: var(--muted);
  }
  .legal-note strong { color: var(--ink); }

  /* tip page */
  .tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding: 28px 40px 8px; }
  .tier-card {
    border: 1px solid var(--line); border-radius: 9px; padding: 20px 18px;
    display: flex; flex-direction: column; gap: 10px; align-items: flex-start;
    transition: border-color .18s ease, transform .18s cubic-bezier(.2,.7,.3,1), background .18s ease;
    background: var(--panel);
  }
  .tier-card:hover { border-color: var(--teal); transform: translateY(-2px); background: var(--panel-2); }
  .tier-card.featured { border-color: var(--teal); background: var(--teal-soft); }
  .tier-icon {
    width: 34px; height: 34px; border-radius: 8px; display: grid; place-items: center;
    background: var(--panel-2);
  }
  .tier-icon svg { width: 18px; height: 18px; }
  .tier-amount { font-family: var(--mono); font-size: 22px; font-weight: 500; }
  .tier-name { color: var(--muted); font-size: 13.5px; }
  .tier-btn {
    margin-top: 4px; align-self: stretch; text-align: center;
    padding: 8px 0; border-radius: 6px; border: 1px solid var(--line);
    font-size: 13.5px; font-weight: 500; cursor: pointer; background: none; color: var(--ink);
    font-family: inherit; transition: background .15s ease, border-color .15s ease, transform .1s ease;
  }
  .tier-btn:hover { border-color: var(--teal); background: var(--teal-soft); }
  .tier-btn:active { transform: scale(.96); }
  .tier-btn:disabled { opacity: .6; cursor: default; }

  .custom-row { padding: 4px 40px 30px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
  .custom-row p { color: var(--muted); font-size: 14px; }
  .custom-input-group { display: flex; gap: 8px; align-items: center; margin-left: auto; }
  .custom-input-group input {
    width: 92px; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--line);
    background: var(--panel); color: var(--ink); font-family: var(--mono); font-size: 14px;
  }
  .custom-input-group input:focus-visible { outline: 2px solid var(--teal); outline-offset: 1px; }

  .tip-status { padding: 0 40px 20px; font-size: 13.5px; color: var(--muted); min-height: 1em; }
  .tip-status.error { color: #e0604f; }
  [data-theme="dark"] .tip-status.error { color: #ff8a76; }

  .stripe-strip {
    display: flex; align-items: center; gap: 10px; padding: 16px 40px;
    border-top: 1px solid var(--line-soft); color: var(--muted); font-size: 13px;
  }
  .stripe-strip svg { width: 18px; height: 18px; flex: none; color: var(--teal); }

  @media (max-width: 700px) {
    .tier-grid { grid-template-columns: 1fr; padding: 22px 22px 6px; }
    .custom-row, .legal-body, .page-hero, .legal-item { padding-left: 22px; padding-right: 22px; }
    .custom-input-group { margin-left: 0; }
  }

  /* ---------- tool pages ---------- */
  .tool-body { padding: 30px 40px 36px; }
  .tool-grid { display: grid; grid-template-columns: 1fr 260px; gap: 32px; align-items: start; }
  @media (max-width: 720px) { .tool-grid { grid-template-columns: 1fr; } }

  .field-label {
    display: block; font-size: 13.5px; font-weight: 500; color: var(--ink);
    margin-bottom: 7px;
  }
  .text-input, .tool-textarea {
    width: 100%; padding: 10px 12px; border-radius: 7px;
    border: 1px solid var(--line); background: var(--panel);
    color: var(--ink); font-family: var(--sans); font-size: 14.5px;
  }
  .text-input:focus-visible, .tool-textarea:focus-visible { outline: 2px solid var(--teal); outline-offset: 1px; }
  .format-row { display: flex; gap: 8px; margin-top: 14px; }
  .format-btn {
    flex: 1; padding: 9px 0; text-align: center; border-radius: 7px;
    border: 1px solid var(--line); background: none; color: var(--muted);
    font-family: var(--mono); font-size: 13px; cursor: pointer;
    transition: border-color .15s ease, color .15s ease, background .15s ease;
  }
  .format-btn.active { border-color: var(--teal); color: var(--ink); background: var(--teal-soft); }
  .tool-actions { margin-top: 18px; display: flex; gap: 10px; align-items: center; }
  .tool-status { font-size: 13.5px; color: var(--muted); }
  .tool-status.error { color: #e0604f; }
  [data-theme="dark"] .tool-status.error { color: #ff8a76; }

  .preview-pane {
    border: 1px solid var(--line); border-radius: 9px;
    background: var(--panel-2);
    aspect-ratio: 1 / 1; display: grid; place-items: center;
    padding: 18px; overflow: hidden;
  }
  .preview-pane img { max-width: 100%; max-height: 100%; display: block; border-radius: 4px; }
  .preview-placeholder { color: var(--muted); font-size: 13px; text-align: center; font-family: var(--mono); }
  .preview-pane.has-image { background: repeating-conic-gradient(var(--panel-2) 0% 25%, var(--panel) 0% 50%) 0 0 / 16px 16px; }

  .dropzone {
    display: block;
    border: 1.5px dashed var(--line); border-radius: 9px;
    padding: 30px 20px; text-align: center; cursor: pointer;
    color: var(--muted); font-size: 14px;
    transition: border-color .15s ease, background .15s ease;
  }
  .dropzone:hover, .dropzone.dragover { border-color: var(--teal); background: var(--teal-soft); }
  .dropzone svg { width: 26px; height: 26px; margin-bottom: 8px; color: var(--teal); }
  .dropzone input { display: none; }
  .file-name { margin-top: 10px; font-family: var(--mono); font-size: 12.5px; color: var(--ink); }


  /* =====================================================================
     accounts, support desk, dashboard
     (everything below only builds on the tokens above)
     ===================================================================== */

  :root { --green: #2f8f57; --red: #c4432f; --violet: #8a55d6; }
  :root[data-theme="dark"] { --green: #55b26a; --red: #ff8a76; --violet: #b48cf2; }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) { --green: #55b26a; --red: #ff8a76; --violet: #b48cf2; }
  }

  [data-accent="teal"]   { --accent: var(--teal); }
  [data-accent="orange"] { --accent: var(--orange); }
  [data-accent="violet"] { --accent: var(--violet); }
  [data-accent="green"]  { --accent: var(--green); }

  .mono { font-family: var(--mono); }
  .muted { color: var(--muted); }
  .nowrap { white-space: nowrap; }
  .dim { opacity: .55; }

  button.btn { font-family: inherit; cursor: pointer; }
  .btn:disabled { opacity: .55; cursor: default; }
  .btn-sm { height: 32px; padding: 0 12px; font-size: 13.5px; }
  .btn-danger { color: var(--red); border-color: var(--line); }
  .row-gap { display: inline-flex; gap: 8px; }
  .wrap-row { flex-wrap: wrap; }

  .eyebrow-mono { font-family: var(--mono); font-size: 12px; color: var(--teal); }
  .page-h1 { font-size: clamp(28px, 4.6vw, 40px); margin-top: 10px; max-width: 20ch; }
  .lead-sm { margin-top: 12px; color: var(--muted); font-size: 15.5px; max-width: 56ch; }
  .muted-p { color: var(--muted); font-size: 15px; max-width: 62ch; margin-top: 10px; }
  .h-lg { font-size: 24px; margin-top: 8px; }
  .h-md { font-size: 16.5px; font-weight: 600; }
  .page-note { text-align: center; font-size: 13px; color: var(--muted); font-family: var(--mono); }
  .backlink { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--muted); }
  .backlink:hover { color: var(--ink); }

  /* generic padded window body */
  .sec { padding: 28px 40px 32px; }
  .sec-foot {
    display: flex; flex-wrap: wrap; gap: 8px 26px;
    padding: 16px 40px; border-top: 1px solid var(--line-soft);
    font-size: 13.5px; color: var(--muted);
  }
  .sec-foot a { color: var(--teal); text-decoration: underline; text-underline-offset: 2px; }

  /* ---------- forms ---------- */
  .form { display: grid; gap: 18px; }
  .field { display: block; min-width: 0; }
  .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .field-hint { display: block; margin-top: 6px; font-size: 12.5px; color: var(--muted); }
  select.text-input { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 17px) 55%, calc(100% - 12px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 30px; }
  .tool-textarea { resize: vertical; min-height: 96px; line-height: 1.5; }
  .text-input.mono { font-family: var(--mono); font-size: 14px; }
  .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
  .form-msg { font-size: 13.5px; }
  .form-msg.error { color: var(--red); }
  .form-msg.ok { color: var(--green); }
  .tool-actions { flex-wrap: wrap; }

  .chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
  .chip {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 7px 13px; border-radius: 6px; cursor: pointer;
    border: 1px solid var(--line); background: none; color: var(--muted);
    font-family: inherit; font-size: 13.5px;
    transition: border-color .15s ease, color .15s ease, background .15s ease, transform .1s ease;
  }
  .chip:hover { border-color: var(--teal); color: var(--ink); }
  .chip:active { transform: scale(.96); }
  .chip.active { border-color: var(--teal); color: var(--ink); background: var(--teal-soft); }
  .chip:disabled { opacity: .6; cursor: default; }
  .swatch { width: 10px; height: 10px; border-radius: 50%; background: var(--accent, var(--teal)); display: inline-block; }

  .check { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; font-size: 14.5px; }
  .check input { margin-top: 4px; accent-color: var(--teal); width: 16px; height: 16px; }

  .panel-box {
    border: 1px solid var(--line-soft); border-radius: 9px;
    padding: 20px 22px 22px; background: var(--panel);
  }
  .panel-box > .h-md { margin-bottom: 16px; }
  .stack-sm > * + * { margin-top: 18px; }

  .keybox { border: 1px dashed var(--teal); background: var(--teal-soft); border-radius: 8px; padding: 14px 16px; }
  .keyline { font-family: var(--mono); font-size: 14.5px; letter-spacing: .01em; }
  .keyline + .keyline { margin-top: 10px; }
  .keyline.spread { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

  .empty {
    border: 1px dashed var(--line); border-radius: 9px; padding: 30px 20px;
    text-align: center; color: var(--muted); font-family: var(--mono); font-size: 13px;
  }

  /* ---------- faq ---------- */
  .faq { border-top: 1px solid var(--line-soft); }
  .faq:first-child { border-top: 0; }
  .faq summary {
    cursor: pointer; list-style: none; padding: 15px 0; font-weight: 500; font-size: 15.5px;
    display: flex; justify-content: space-between; gap: 16px; align-items: baseline;
  }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after { content: "+"; font-family: var(--mono); color: var(--teal); flex: none; }
  .faq[open] summary::after { content: "–"; }
  .faq summary:hover { color: var(--teal); }
  .faq p { color: var(--muted); font-size: 14.5px; max-width: 62ch; padding: 0 0 16px; }
  .faq p a { color: var(--teal); text-decoration: underline; text-underline-offset: 2px; }

  /* ---------- people ---------- */
  .avatar { overflow: hidden; color: var(--accent, var(--teal)); text-transform: lowercase; }
  .avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .avatar-lg { width: 84px; height: 84px; border-radius: 14px; font-size: 30px; }
  .app.member { grid-template-columns: 40px 1fr auto; }
  .app.member .avatar { width: 40px; height: 40px; }

  /* ---------- pills, tags ---------- */
  .pill {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--mono); font-size: 11.5px; line-height: 1.6;
    padding: 0 8px; border-radius: 4px; white-space: nowrap;
    border: 1px solid var(--line-soft); background: var(--panel-2); color: var(--muted);
  }
  .pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
  .pill.open { color: var(--teal); }
  .pill.pending { color: var(--orange); }
  .pill.resolved { color: var(--green); }
  .pill.closed { color: var(--muted); }

  .meta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin-top: 12px; font-size: 13.5px; }
  .from-line { margin-top: 10px; font-size: 14px; color: var(--muted); }
  .from-line b { color: var(--ink); font-weight: 500; }
  .from-line a { color: var(--teal); text-decoration: underline; text-underline-offset: 2px; }

  /* ---------- conversation ---------- */
  .thread { display: flex; flex-direction: column; gap: 14px; }
  .msg {
    max-width: min(560px, 88%); align-self: flex-start;
    border: 1px solid var(--line); border-radius: 9px; padding: 11px 15px 13px;
    background: var(--panel-2);
  }
  .msg.staff {
    align-self: flex-end; background: var(--teal-soft);
    border-color: color-mix(in srgb, var(--teal) 38%, var(--line));
  }
  .msg-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; margin-bottom: 6px; font-family: var(--mono); font-size: 11.5px; color: var(--muted); }
  .msg-meta b { color: var(--ink); font-weight: 500; }
  .msg-body { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 14.5px; }

  /* ---------- staff profile ---------- */
  .pf-head { display: flex; align-items: center; gap: 22px; padding: 34px 40px 6px; }
  .pf-name h1 { font-size: clamp(24px, 4vw, 32px); overflow-wrap: anywhere; }
  .pf-line { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin-top: 8px; font-size: 13.5px; }
  .pf-line .app-tag { margin-top: 0; }
  .pf-title { color: var(--accent, var(--teal)); border-color: color-mix(in srgb, var(--accent, var(--teal)) 40%, var(--line-soft)); }
  .pf-body { padding: 14px 40px 30px; }
  .pf-bio { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 15.5px; max-width: 62ch; }
  .pf-facts { display: flex; flex-wrap: wrap; gap: 10px 34px; margin: 22px 0 0; }
  .pf-facts dt { font-family: var(--mono); font-size: 11.5px; color: var(--muted); }
  .pf-facts dd { margin: 2px 0 0; font-size: 14.5px; }
  .pf-links { margin-top: 24px; border: 1px solid var(--line-soft); border-radius: 9px; overflow: hidden; }
  .pf-link { display: flex; justify-content: space-between; gap: 14px; padding: 11px 16px; font-size: 14.5px; transition: background .15s ease, padding-left .18s cubic-bezier(.2,.7,.3,1); }
  .pf-link + .pf-link { border-top: 1px solid var(--line-soft); }
  a.pf-link:hover { background: var(--panel-2); padding-left: 20px; }
  .pf-link .mono { font-size: 12.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .pf-foot { display: flex; flex-wrap: wrap; gap: 10px; padding: 18px 40px 26px; border-top: 1px solid var(--line-soft); }

  /* ---------- dashboard ---------- */
  .dash { display: grid; grid-template-columns: 224px minmax(0, 1fr); min-height: 560px; }
  .dash-side {
    border-right: 1px solid var(--line-soft); background: var(--panel-2);
    padding: 14px 10px 10px; display: flex; flex-direction: column;
  }
  .dash-nav { display: flex; flex-direction: column; gap: 2px; }
  .dash-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 10px; border-radius: 6px; font-size: 14.5px; color: var(--muted);
    transition: background .15s ease, color .15s ease;
  }
  .dash-nav a:hover { background: var(--panel); color: var(--ink); }
  .dash-nav a.active { background: var(--panel); color: var(--ink); box-shadow: inset 2px 0 0 var(--teal); }
  .count {
    margin-left: auto; font-family: var(--mono); font-size: 11.5px;
    padding: 0 6px; border-radius: 4px; background: var(--teal-soft); color: var(--teal);
  }
  .dash-group { font-family: var(--mono); font-size: 11px; color: var(--muted); padding: 16px 10px 6px; }
  .dash-me { margin-top: auto; padding: 14px 4px 2px; border-top: 1px solid var(--line-soft); display: flex; align-items: center; gap: 10px; }
  .dash-me .avatar { width: 34px; height: 34px; font-size: 13px; }
  .dash-me-text { min-width: 0; flex: 1; display: flex; flex-direction: column; font-size: 13.5px; line-height: 1.3; }
  .dash-me-text b { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .dash-me-text a { font-family: var(--mono); font-size: 11.5px; overflow: hidden; text-overflow: ellipsis; }
  .dash-main { padding: 26px 30px 34px; min-width: 0; }
  .dash-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
  .dash-head h1 { font-size: 22px; }
  .search { min-width: 0; }
  .search .text-input { width: 230px; max-width: 100%; padding: 7px 11px; font-size: 14px; }

  .tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line-soft); margin-bottom: 4px; overflow-x: auto; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab {
    display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
    padding: 9px 12px; font-size: 14px; color: var(--muted);
    border-bottom: 2px solid transparent; margin-bottom: -1px;
    transition: color .15s ease, border-color .15s ease;
  }
  .tab:hover { color: var(--ink); }
  .tab.active { color: var(--ink); border-bottom-color: var(--teal); }
  .tab .count { margin-left: 0; background: var(--panel-2); color: var(--muted); }
  .tab.active .count { background: var(--teal-soft); color: var(--teal); }

  .trows { margin-top: 2px; }
  .trow {
    display: grid; grid-template-columns: 128px minmax(0, 1fr) auto; gap: 16px; align-items: center;
    padding: 13px 8px; border-top: 1px solid var(--line-soft);
    transition: background .15s ease, transform .18s cubic-bezier(.2,.7,.3,1);
  }
  .trows .trow:first-child { border-top: 0; }
  .trow:hover { background: var(--panel-2); transform: translateX(3px); }
  .trow-main { min-width: 0; display: flex; flex-direction: column; gap: 3px; }
  .trow-main b { font-weight: 500; font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .trow-sub { font-size: 13.5px; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .trow-sub .app-tag { margin-top: 0; }
  .trow-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; font-size: 12.5px; color: var(--muted); white-space: nowrap; }
  .trow-meta .mono { font-size: 11.5px; }

  .tbl-wrap { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: 9px; }
  .tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
  .tbl th {
    text-align: left; font-weight: 500; font-family: var(--mono); font-size: 11.5px; color: var(--muted);
    padding: 9px 14px; background: var(--panel-2); border-bottom: 1px solid var(--line-soft); white-space: nowrap;
  }
  .tbl td { padding: 12px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
  .tbl tr:last-child td { border-bottom: 0; }

  .split { display: grid; grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .preview-col { order: -1; }
  .preview-win { margin-top: 7px; box-shadow: none; max-width: 460px; }
  .preview-win .pf-head { padding: 22px 20px 4px; gap: 14px; }
  .preview-win .pf-body { padding: 10px 20px 20px; }
  .preview-win .avatar-lg { width: 60px; height: 60px; font-size: 22px; border-radius: 11px; }
  .preview-win .pf-name h1 { font-size: 20px; }
  .link-row { display: grid; grid-template-columns: 130px minmax(0, 1fr) auto auto auto; gap: 6px; align-items: center; margin-bottom: 8px; }
  .link-row .tray-btn:disabled { opacity: .3; cursor: default; }

  @media (max-width: 760px) {
    .dash { grid-template-columns: 1fr; }
    .dash-side { border-right: 0; border-bottom: 1px solid var(--line-soft); padding: 8px; }
    .dash-nav { flex-direction: row; overflow-x: auto; scrollbar-width: none; }
    .dash-nav a { white-space: nowrap; }
    .dash-group { display: none; }
    .dash-me { display: none; }
    .dash-main { padding: 20px 18px 28px; }
    .trow { grid-template-columns: 1fr auto; }
    .trow > .pill { grid-column: 1 / -1; justify-self: start; }
    .pf-head { padding: 26px 22px 6px; }
    .pf-body { padding: 12px 22px 24px; }
    .pf-foot { padding: 16px 22px 22px; }
  }
  @media (max-width: 700px) {
    .sec { padding: 22px 22px 26px; }
    .sec-foot { padding: 14px 22px; }
    .field-row { grid-template-columns: 1fr; }
    .link-row { grid-template-columns: 1fr auto auto auto; }
    .link-row input:nth-child(2) { grid-column: 1 / -1; grid-row: 2; }
    .msg { max-width: 100%; }
    .app.member { grid-template-columns: 40px 1fr; }
  }

  .tbl td.mono { white-space: nowrap; }
  .dash-main > .muted-p { margin-bottom: 18px; }

  /* two-factor */
  .tfa-head { display: flex; align-items: center; gap: 12px; }
  .tfa-qr { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; }
  .tfa-qr img { border-radius: 8px; border: 1px solid var(--line); background: #fff; padding: 6px; display: block; }
  .codes-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 18px; }
  .codes-grid .keyline + .keyline { margin-top: 0; }

  /* website status tool */
  .pill.down { color: var(--red); }
  .check-row { display: flex; gap: 10px; }
  .check-row .text-input { flex: 1; min-width: 0; }
  .result-card { margin-top: 22px; padding: 18px 20px 18px; border: 1px solid var(--line-soft); border-left-width: 3px; border-radius: 9px; background: var(--panel-2); }
  .result-card.up { border-left-color: var(--green); }
  .result-card.reachable { border-left-color: var(--orange); }
  .result-card.down { border-left-color: var(--red); }
  .status-line { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
  .status-big { font-size: 20px; font-weight: 700; overflow-wrap: anywhere; }
  .result-note { margin-top: 8px; color: var(--muted); font-size: 14.5px; }
  .stat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 16px 0 0; }
  .stat { border: 1px solid var(--line-soft); border-radius: 8px; padding: 9px 12px; background: var(--panel); }
  .stat dt { font-family: var(--mono); font-size: 11.5px; color: var(--muted); }
  .stat dd { margin: 2px 0 0; font-size: 18px; font-weight: 500; }
  .result-url { margin-top: 12px; font-size: 12.5px; color: var(--muted); overflow-wrap: anywhere; }
  .hint-line { margin-top: 18px; font-size: 12.5px; color: var(--muted); max-width: 64ch; }
  .wl-row { display: grid; grid-template-columns: 96px minmax(0, 1fr) auto auto; gap: 14px; align-items: center; padding: 11px 24px; border-top: 1px solid var(--line-soft); }
  .wl-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
  a.wl-name:hover { color: var(--teal); }
  .wl-ms { font-size: 12.5px; min-width: 56px; text-align: right; }
  .wl-foot { display: flex; align-items: center; gap: 14px; padding: 16px 24px 22px; border-top: 1px solid var(--line-soft); }
  @media (max-width: 600px) {
    .stat-grid { grid-template-columns: 1fr 1fr 1fr; }
    .stat dd { font-size: 15px; }
    .wl-row { grid-template-columns: 84px minmax(0, 1fr) auto; padding: 11px 18px; }
    .wl-ms { display: none; }
  }