:root {
  color-scheme: dark;
  --paper: #091218;
  --panel: #111e27;
  --raised: #172a34;
  --ink: #e8f1f4;
  --muted: #a3b5bf;
  --dim: #8196a3;
  --line: #293d49;
  --mint: #59e8c7;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { min-width: 280px; background: var(--paper); }
body { margin: 0; color: var(--ink); font-family: var(--font); -webkit-font-smoothing: antialiased; background: radial-gradient(ellipse 650px 450px at 50% 330px, #12312e44, transparent 85%); }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--mint); outline-offset: 6px; }
.skip-link { position: absolute; top: 12px; left: 20px; z-index: 3; padding: 13px 20px; border-radius: 8px; color: var(--paper); background: var(--mint); transform: translateY(-200%); text-decoration: none; }
.skip-link:focus { transform: translateY(0); }
.page-shell { width: min(100% - 80px, 1040px); margin: 0 auto; }
.site-header { min-height: 125px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid #293d4970; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; font-size: 25px; line-height: 1; font-weight: 750; letter-spacing: -.8px; }
.brand-mark { display: grid; place-items: center; width: 43px; height: 43px; border-radius: 13px; color: var(--paper); background: var(--mint); }
.brand-mark svg { width: 31px; height: 31px; }
.brand-caption { display: block; margin-top: 8px; color: var(--dim); font: 600 8px ui-monospace, monospace; letter-spacing: 1.6px; }
.preview-badge { display: inline-flex; align-items: center; gap: 7px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 100px; color: var(--muted); font-size: 12px; font-weight: 500; }
.preview-badge > span { width: 5px; height: 5px; background: #e6b974; border-radius: 50%; }
.intro { padding: 72px 0 56px; text-align: center; }
.eyebrow { margin: 0 0 23px; color: var(--mint); font: 600 10px ui-monospace, monospace; letter-spacing: 2.5px; }
h1 { margin: 0; font-size: clamp(42px, 5.8vw, 68px); line-height: 1.07; letter-spacing: -2.8px; font-weight: 720; }
.intro-copy { margin: 24px 0 0; color: var(--muted); font-size: 17px; line-height: 1.6; }
.guidance-button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; margin-top: 12px; padding: 9px 12px; border: 0; border-radius: 9px; background: transparent; color: var(--mint); font-size: 13px; font-weight: 550; cursor: pointer; }
.guidance-button:hover { background: #59e8c70b; }
.guidance-button svg { width: 18px; height: 18px; }
.download-panel { width: min(100%, 510px); margin: 37px auto 0; padding: 28px 36px 24px; border: 1px solid #365a58; border-radius: 24px; background: linear-gradient(155deg, #173c3438, var(--panel) 65%); box-shadow: 0 20px 80px #0000001f; }
.windows-mark { display: grid; grid-template-columns: repeat(2, 28px); grid-template-rows: repeat(2, 28px); gap: 5px; justify-content: center; margin: 2px auto 17px; transform: perspective(140px) rotateY(-9deg); }
.windows-mark span { background: var(--mint); border-radius: 1px; }
.file-name { margin: 0; font-weight: 650; font-size: 21px; letter-spacing: -.5px; }
.file-name span { color: var(--dim); font-weight: 450; }
.file-description { margin: 8px 0 23px; font-size: 13px; color: var(--muted); }
.download-button { width: 100%; min-height: 61px; display: flex; align-items: center; justify-content: center; gap: 11px; padding: 13px 18px; border: 1px solid #52716f; border-radius: 12px; background: #243a3b; color: #c7dcdb; font-size: 16px; font-weight: 650; line-height: 1.25; }
.download-button:disabled { cursor: not-allowed; }
.download-button[data-available="true"] { color: var(--paper); background: var(--mint); border-color: var(--mint); cursor: pointer; transition: background .15s ease, transform .15s ease; }
.download-button[data-available="true"]:hover { background: #7cefd3; }
.download-button[data-available="true"]:active { transform: translateY(1px); }
.button-windows { width: 19px; height: 19px; flex: none; }
.download-arrow { width: 20px; height: 20px; margin-left: auto; flex: none; }
.download-button > span { flex: 1; text-align: left; }
.download-status { margin: 17px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.download-detail { margin: 7px 0 0; color: var(--dim); font-size: 11px; line-height: 1.55; }
.steps-section { padding: 9px 0 37px; }
.section-heading { display: flex; align-items: center; justify-content: center; gap: 21px; margin-bottom: 32px; }
.section-heading h2 { margin: 0; color: var(--muted); font-size: 13px; font-weight: 500; text-align: center; }
.hairline { width: 70px; height: 1px; background: var(--line); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { padding: 0 0 0 16px; border-left: 1px solid #324b4a; }
.step-number { color: var(--mint); font: 500 11px ui-monospace, monospace; letter-spacing: 1px; }
.steps h3 { margin: 14px 0 9px; font-size: 17px; letter-spacing: -.25px; font-weight: 600; }
.steps p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
strong { font-weight: 600; color: var(--ink); }
.control-note { display: flex; align-items: flex-start; gap: 17px; margin: 0 0 41px; padding: 24px 26px; border: 1px solid var(--line); border-radius: 15px; background: #111e2780; }
.control-icon { flex: none; display: grid; place-items: center; width: 38px; height: 38px; color: var(--mint); background: #59e8c710; border-radius: 9px; }
.control-icon svg { width: 24px; height: 24px; }
.control-note h2 { margin: 0 0 9px; font-size: 15px; line-height: 1.45; font-weight: 600; }
.control-note p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 21px 0 30px; border-top: 1px solid #293d4970; color: var(--dim); font-size: 11px; line-height: 1.5; }
.site-footer > span:first-child { color: var(--muted); font-weight: 600; }
.help-open { overflow: hidden; }
.help-dialog { width: min(calc(100% - 40px), 530px); max-height: calc(100vh - 40px); max-height: calc(100dvh - 40px); margin: auto; padding: 0; border: 1px solid #3c5e5b; border-radius: 23px; color: var(--ink); background: var(--panel); box-shadow: 0 25px 110px #0008; overflow-y: auto; }
.help-dialog::backdrop { background: #03090ec9; backdrop-filter: blur(5px); }
.dialog-content { padding: 20px 32px; }
.dialog-topline { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.dialog-eyebrow { color: var(--mint); font: 550 10px ui-monospace, monospace; letter-spacing: 2px; }
.dialog-close { display: grid; place-items: center; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); border-radius: 50%; color: var(--muted); background: transparent; cursor: pointer; }
.dialog-close:hover { background: var(--raised); color: var(--ink); }
.dialog-close svg { width: 20px; height: 20px; }
.dialog-title { margin: 14px 0 15px; font-size: 37px; line-height: 1.1; font-weight: 650; letter-spacing: -1.25px; }
.dialog-title:focus-visible { outline: none; }
.dialog-intro { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.dialog-steps { display: grid; gap: 16px; margin: 21px 0; padding: 0; list-style: none; }
.dialog-steps li { display: flex; align-items: flex-start; gap: 13px; }
.dialog-steps li > span { display: grid; place-items: center; flex: none; width: 32px; height: 32px; margin-top: 1px; border-radius: 9px; color: var(--mint); background: #59e8c710; font: 500 12px ui-monospace, monospace; }
.dialog-steps h3 { margin: 0 0 5px; font-size: 16px; font-weight: 600; letter-spacing: -.15px; }
.dialog-steps p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.dialog-sharing { padding: 17px 18px; border: 1px solid #293f45; border-radius: 12px; background: #0b192080; }
.dialog-sharing p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.dialog-sharing p + p { margin-top: 10px; }
.dialog-confirm { margin-top: 18px; }
.dialog-confirm button { display: flex; align-items: center; justify-content: center; gap: 12px; width: 100%; min-height: 55px; padding: 14px 20px; border: 1px solid var(--mint); border-radius: 11px; color: var(--paper); background: var(--mint); font-size: 16px; font-weight: 650; cursor: pointer; }
.dialog-confirm button:hover { background: #7cefd3; }
.dialog-confirm button svg { width: 21px; height: 21px; }
.dialog-preview { margin: 13px 0 0; color: var(--dim); font-size: 10px; line-height: 1.5; text-align: center; }
@media (max-width: 650px) {
  .page-shell { width: calc(100% - 40px); }
  .site-header { min-height: 96px; }
  .brand { font-size: 23px; }
  .brand-mark { width: 39px; height: 39px; border-radius: 11px; }
  .brand-caption { font-size: 7px; letter-spacing: 1.4px; }
  .preview-badge { padding: 7px 9px; font-size: 11px; }
  .intro { padding: 49px 0 42px; }
  .eyebrow { font-size: 9px; margin-bottom: 20px; letter-spacing: 2px; }
  h1 { font-size: clamp(38px, 10.5vw, 58px); letter-spacing: -1.8px; }
  .intro-copy { font-size: 15px; margin-top: 21px; }
  .wide-only { display: none; }
  .download-panel { padding: 26px 22px 23px; margin-top: 28px; border-radius: 20px; }
  .download-button { min-height: 61px; padding: 14px; font-size: 15px; gap: 9px; }
  .download-status { font-size: 12px; }
  .download-detail { font-size: 11px; }
  .steps-section { padding-bottom: 30px; }
  .section-heading { gap: 13px; margin-bottom: 26px; }
  .hairline { width: 32px; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .steps li { position: relative; min-height: 65px; padding: 1px 0 0 57px; border-left: 0; }
  .step-number { position: absolute; left: 0; top: 0; display: grid; place-items: center; width: 37px; height: 37px; border: 1px solid #36534f; background: #59e8c708; border-radius: 10px; }
  .steps h3 { margin-top: 0; margin-bottom: 7px; font-size: 16px; }
  .control-note { padding: 21px 19px; gap: 12px; margin-bottom: 25px; }
  .control-note h2 { font-size: 14px; }
  .control-note p { font-size: 12px; }
  .control-icon { width: 31px; height: 31px; }
  .control-icon svg { width: 21px; height: 21px; }
  .site-footer { align-items: flex-start; font-size: 10px; }
  .site-footer > span:last-child { max-width: 190px; text-align: right; }
  .help-dialog { width: calc(100% - 28px); max-height: calc(100vh - 28px); max-height: calc(100dvh - 28px); border-radius: 18px; }
  .dialog-content { padding: 19px 21px 20px; }
  .dialog-title { font-size: 33px; margin-top: 13px; }
  .dialog-intro { font-size: 13px; }
  .dialog-steps { gap: 18px; margin-block: 23px; }
  .dialog-steps li { gap: 11px; }
  .dialog-sharing { padding: 15px; }
  .dialog-steps p, .dialog-sharing p { font-size: 13px; }
}
@media (max-width: 330px) {
  .page-shell { width: calc(100% - 28px); }
  .brand-caption { display: none; }
  .download-panel { padding-inline: 15px; }
  .download-button { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}