:root {
  --ds-bg: #0a0f1d;
  --ds-surface: rgba(255,255,255,.06);
  --ds-surface-strong: rgba(255,255,255,.1);
  --ds-border: rgba(255,255,255,.14);
  --ds-text: #f8fafc;
  --ds-muted: #aab6c8;
  --ds-accent: #7dd3fc;
  --ds-accent-strong: #38bdf8;
  --ds-radius: 24px;
  --ds-shadow: 0 24px 80px rgba(0,0,0,.35);
  --ds-max: 1180px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56,189,248,.22), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(125,211,252,.12), transparent 28rem),
    var(--ds-bg);
  color: var(--ds-text);
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
.container { width: min(var(--ds-max), calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: absolute; left: -999px; top: 1rem; background: var(--ds-text); color: var(--ds-bg); padding: .75rem 1rem; border-radius: 999px; z-index: 99; }
.skip-link:focus { left: 1rem; }
.ds-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--ds-border); background: rgba(10,15,29,.74); backdrop-filter: blur(18px); }
.ds-nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .75rem; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, var(--ds-accent), #e0f2fe); color: #06111f; font-size: .78rem; }
.nav-links { display: flex; align-items: center; gap: .4rem; }
.nav-links a { padding: .7rem .9rem; border-radius: 999px; color: var(--ds-muted); }
.nav-links a:hover { background: var(--ds-surface); color: var(--ds-text); }
.nav-toggle { display: none; }
.hero { padding: clamp(72px, 11vw, 140px) 0 56px; }
.eyebrow, .card-kicker, .tool-card span { color: var(--ds-accent); font-weight: 800; text-transform: uppercase; letter-spacing: .12em; font-size: .76rem; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 850px; font-size: clamp(3rem, 8vw, 6.8rem); line-height: .9; letter-spacing: -.08em; margin-bottom: 1.5rem; }
.hero-copy { max-width: 690px; color: var(--ds-muted); font-size: clamp(1.1rem, 2vw, 1.35rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 1.1rem; border-radius: 999px; border: 1px solid var(--ds-border); background: var(--ds-surface); color: var(--ds-text); font-weight: 750; }
.button.primary { background: var(--ds-text); color: #08101f; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-bottom: 42px; }
.feature-card, .tool-card { border: 1px solid var(--ds-border); background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.045)); border-radius: var(--ds-radius); box-shadow: var(--ds-shadow); }
.feature-card { padding: 1.35rem; min-height: 240px; display: flex; flex-direction: column; }
.feature-card h2 { margin: 1.4rem 0 .75rem; font-size: 1.45rem; }
.feature-card p { color: var(--ds-muted); }
.feature-card a { margin-top: auto; color: var(--ds-text); font-weight: 800; }
.link-section { padding: 32px 0 90px; }
.section-heading { margin-bottom: 1.5rem; }
.section-heading h2 { font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -.05em; }
.tool-group { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--ds-border); }
.group-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: end; margin-bottom: 1rem; }
.group-heading h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -.04em; margin-bottom: 0; }
.group-heading p { color: var(--ds-muted); max-width: 420px; margin-bottom: .2rem; }
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.tool-card { display: flex; flex-direction: column; min-height: 190px; padding: 1.15rem; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.tool-card:hover { transform: translateY(-3px); border-color: rgba(125,211,252,.42); background: var(--ds-surface-strong); }
.tool-card strong { display: block; font-size: 1.15rem; margin: .9rem 0 .45rem; }
.tool-card p { color: var(--ds-muted); margin-bottom: 0; }
.tool-card::after { content: "→"; margin-top: auto; align-self: flex-end; color: var(--ds-accent); font-size: 1.45rem; }
.tool-card.disabled { opacity: .55; pointer-events: none; }
.ds-footer { border-top: 1px solid var(--ds-border); background: rgba(10,15,29,.78); }
.footer-inner { min-height: 88px; display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: var(--ds-muted); }
.footer-inner a { color: var(--ds-text); font-weight: 750; }
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; border: 1px solid var(--ds-border); background: var(--ds-surface); color: var(--ds-text); border-radius: 999px; padding: .65rem .9rem; }
  .nav-links { display: none; position: absolute; left: 20px; right: 20px; top: 84px; padding: .75rem; border: 1px solid var(--ds-border); border-radius: 22px; background: rgba(10,15,29,.96); flex-direction: column; align-items: stretch; }
  .nav-links.is-open { display: flex; }
  .feature-grid, .link-grid { grid-template-columns: 1fr; }
  .group-heading, .footer-inner { display: block; }
  h1 { font-size: clamp(2.8rem, 16vw, 4.8rem); }
}


/* Dynamic script download card */
button.tool-card {
  appearance: none;
  border: 1px solid var(--ds-border);
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

button.tool-card:focus-visible {
  outline: 3px solid rgba(125,211,252,.55);
  outline-offset: 4px;
}

button.tool-card.is-loading {
  opacity: .72;
  cursor: wait;
}

/* MTR update helper */
.mtr-helper-card {
  grid-column: span 2;
}

.mtr-helper-card::after {
  content: none;
}

.command-output {
  display: block;
  margin: 1rem 0 .75rem;
  padding: .85rem;
  border: 1px solid var(--ds-border);
  border-radius: 16px;
  background: rgba(0,0,0,.22);
  color: var(--ds-text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: .86rem;
  overflow-wrap: anywhere;
}

.helper-status {
  font-size: .9rem;
}

.helper-status[data-type="success"] {
  color: #bbf7d0;
}

.helper-status[data-type="error"] {
  color: #fecaca;
}

.helper-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: auto;
}

.mini-button {
  border: 1px solid rgba(125,211,252,.34);
  background: rgba(125,211,252,.12);
  color: var(--ds-text);
  border-radius: 999px;
  padding: .58rem .78rem;
  font: inherit;
  font-size: .9rem;
  font-weight: 750;
  cursor: pointer;
}

.mini-button:hover,
.mini-button:focus-visible {
  background: rgba(125,211,252,.2);
}

.mini-button.ghost {
  border-color: var(--ds-border);
  background: var(--ds-surface);
}

@media (max-width: 860px) {
  .mtr-helper-card {
    grid-column: auto;
  }
}

/* Server file drop */
.file-drop-card {
  grid-column: span 2;
}

.file-drop-card::after {
  content: none;
}

.file-drop-card code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: .92em;
}

.file-drop-form {
  margin-top: 1rem;
}

.file-drop-zone {
  display: grid;
  place-items: center;
  gap: .35rem;
  min-height: 168px;
  padding: 1.2rem;
  border: 1px dashed rgba(125,211,252,.5);
  border-radius: 20px;
  background: rgba(125,211,252,.08);
  text-align: center;
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.file-drop-zone:hover,
.file-drop-zone.is-dragging {
  border-color: rgba(125,211,252,.88);
  background: rgba(125,211,252,.15);
  transform: translateY(-2px);
}

.file-drop-zone input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.file-drop-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  color: var(--ds-accent);
  font-size: 1.45rem;
  font-weight: 900;
}

.file-drop-main {
  font-weight: 800;
}

.file-drop-meta {
  color: var(--ds-muted);
  font-size: .88rem;
}

.upload-list {
  list-style: none;
  padding: 0;
  margin: .85rem 0 0;
  display: grid;
  gap: .4rem;
}

.upload-list li {
  padding: .55rem .7rem;
  border: 1px solid var(--ds-border);
  border-radius: 14px;
  background: rgba(0,0,0,.18);
  color: var(--ds-muted);
  overflow-wrap: anywhere;
  font-size: .92rem;
}

.upload-list a {
  color: var(--ds-text);
  font-weight: 750;
  text-decoration: underline;
  text-decoration-color: rgba(125,211,252,.55);
  text-underline-offset: 3px;
}

@media (max-width: 860px) {
  .file-drop-card {
    grid-column: auto;
  }
}

.embedded-tool-section { padding-block: 1rem 4rem; }
.embedded-tool { border: 1px solid var(--ds-border); border-radius: 24px; background: rgba(15,23,42,.72); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.2); }
.embedded-tool summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 1.4rem; }
.embedded-tool summary::-webkit-details-marker { display: none; }
.embedded-tool summary span:first-child { display: grid; gap: .2rem; }
.embedded-tool summary strong { font-size: 1.15rem; }
.embedded-tool summary small { color: var(--ds-muted); }
.embedded-tool-toggle { flex: 0 0 auto; padding: .45rem .75rem; border: 1px solid var(--ds-border); border-radius: 999px; color: var(--ds-accent); font-weight: 800; font-size: .84rem; }
.embedded-tool[open] .embedded-tool-toggle { font-size: 0; }
.embedded-tool[open] .embedded-tool-toggle::after { content: 'Close tool'; font-size: .84rem; }
.embedded-tool-frame-wrap { border-top: 1px solid var(--ds-border); background: #08111f; }
.embedded-tool-frame { display: block; width: 100%; min-height: 980px; border: 0; background: #08111f; }
@media (max-width: 760px) { .embedded-tool summary { align-items: flex-start; } .embedded-tool-frame { min-height: 1380px; } }

/* Collapsible Other Useful Links and Tools section */
.collapsible-tool-group {
  border: 1px solid var(--ds-border);
  border-radius: 24px;
  background: rgba(15,23,42,.5);
  overflow: hidden;
}

.collapsible-tool-group > summary {
  list-style: none;
  cursor: pointer;
}

.collapsible-tool-group > summary::-webkit-details-marker {
  display: none;
}

.collapsible-group-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.4rem;
  margin: 0;
}

.collapsible-group-heading > span:first-child {
  display: grid;
  gap: .2rem;
}

.collapsible-group-heading h3,
.collapsible-group-heading p {
  margin: 0;
}

.section-toggle {
  flex: 0 0 auto;
  padding: .45rem .75rem;
  border: 1px solid var(--ds-border);
  border-radius: 999px;
  color: var(--ds-accent);
  font-weight: 800;
  font-size: .84rem;
}

.collapsible-tool-group[open] .section-toggle {
  font-size: 0;
}

.collapsible-tool-group[open] .section-toggle::after {
  content: 'Close section';
  font-size: .84rem;
}

.collapsible-group-content {
  display: grid;
  gap: 1.25rem;
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--ds-border);
}

.collapsible-group-content > .link-grid {
  padding-top: 1.25rem;
}

.collapsible-group-content .embedded-tool {
  margin-top: 0;
}

@media (max-width: 760px) {
  .collapsible-group-heading {
    align-items: flex-start;
  }
}


/* Full-width SkypeSettings generator section */
.generator-section-content {
  padding: 0;
}

.generator-section-content .embedded-tool-frame-wrap {
  border-top: 0;
}

/* Standalone tool link */
.standalone-tool-banner { display:flex; align-items:center; gap:1rem; padding:1.25rem 1.4rem; border:1px solid var(--ds-border); border-radius:var(--ds-radius); background:linear-gradient(135deg,rgba(125,211,252,.14),rgba(255,255,255,.045)); box-shadow:var(--ds-shadow); transition:transform .18s ease,border-color .18s ease; }
.standalone-tool-banner:hover { transform:translateY(-3px); border-color:rgba(125,211,252,.5); }
.standalone-tool-icon { display:grid; place-items:center; flex:0 0 auto; width:58px; height:58px; border-radius:18px; background:var(--ds-text); color:#08101f; font-weight:900; }
.standalone-tool-copy { display:grid; gap:.18rem; min-width:0; }
.standalone-tool-copy strong { font-size:1.25rem; }
.standalone-tool-copy small { color:var(--ds-muted); font-size:.95rem; }
.standalone-tool-action { margin-left:auto; color:var(--ds-accent); font-weight:800; white-space:nowrap; }

/* Native standalone generator page */
.tool-page-hero { padding:clamp(64px,9vw,110px) 0 38px; }
.tool-page-hero h1 { max-width:980px; font-size:clamp(2.8rem,7vw,6rem); }
.back-link { display:inline-flex; gap:.45rem; margin-top:1.2rem; color:var(--ds-accent); font-weight:800; }
.tool-page-layout { display:grid; grid-template-columns:minmax(0,1.25fr) minmax(340px,.75fr); gap:1.25rem; align-items:start; padding-bottom:80px; }
.generator-panel,.preview-panel { border:1px solid var(--ds-border); border-radius:var(--ds-radius); background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035)); box-shadow:var(--ds-shadow); }
.generator-panel { padding:1.35rem; }
.generator-block { padding:1.25rem 0; border-top:1px solid var(--ds-border); }
.generator-block:first-child { padding-top:0; border-top:0; }
.generator-block-heading { display:flex; gap:.85rem; margin-bottom:1rem; }
.generator-block-heading h2 { margin:0 0 .2rem; font-size:1.35rem; }
.generator-block-heading p { margin:0; color:var(--ds-muted); }
.generator-number { display:grid; place-items:center; flex:0 0 auto; width:38px; height:38px; border-radius:12px; background:rgba(125,211,252,.14); color:var(--ds-accent); font-size:.76rem; font-weight:900; }
.form-row,.option-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.85rem; }
.option-grid { grid-template-columns:repeat(3,minmax(0,1fr)); }
.option-card { padding:.9rem; border:1px solid var(--ds-border); border-radius:18px; background:rgba(0,0,0,.12); }
.ds-field { display:grid; gap:.42rem; margin-top:.85rem; font-weight:750; }
.ds-field small,.ds-check small { display:block; color:var(--ds-muted); font-weight:500; }
.ds-field input,.ds-field select,.ds-field textarea { width:100%; padding:.75rem .8rem; border:1px solid var(--ds-border); border-radius:14px; background:rgba(5,11,20,.78); color:var(--ds-text); font:inherit; }
.ds-field textarea { min-height:125px; resize:vertical; }
.ds-field.compact { margin-top:.7rem; }
.ds-check { display:grid; grid-template-columns:auto 1fr; gap:.7rem; align-items:start; cursor:pointer; }
.ds-check input { margin-top:.25rem; accent-color:var(--ds-accent-strong); width:1.05rem; height:1.05rem; }
.generator-actions { display:flex; flex-wrap:wrap; gap:.65rem; padding-top:.4rem; }
.generator-actions button { cursor:pointer; }
.generator-status { margin:.8rem 0 0; color:#bbf7d0; font-weight:750; }
.preview-panel { position:sticky; top:96px; padding:1.2rem; }
.preview-heading { display:flex; justify-content:space-between; gap:1rem; align-items:start; margin-bottom:1rem; }
.preview-heading h2 { margin:0; }
.filename-pill { padding:.45rem .65rem; border:1px solid var(--ds-border); border-radius:999px; color:var(--ds-muted); font-size:.78rem; font-weight:800; }
.preview-panel pre { min-height:520px; margin:0; padding:1rem; overflow:auto; white-space:pre-wrap; word-break:break-word; border:1px solid var(--ds-border); border-radius:18px; background:#050b14; color:#d9f5ff; font: .88rem/1.6 ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace; }
.preview-note { margin:.85rem 0 0; color:var(--ds-muted); font-size:.9rem; }
.tool-page-footer { margin-top:0; }
@media (max-width:980px) { .tool-page-layout { grid-template-columns:1fr; } .preview-panel { position:static; } .option-grid { grid-template-columns:1fr; } }
@media (max-width:680px) { .form-row { grid-template-columns:1fr; } .standalone-tool-banner { align-items:flex-start; flex-wrap:wrap; } .standalone-tool-action { width:100%; margin-left:74px; } .tool-page-hero h1 { letter-spacing:-.06em; } }