:root {
  color-scheme: light;
  --platform-ink: #282834;
  --platform-muted: #666775;
  --platform-ground: #f7f7fb;
  --platform-paper: #fff;
  --platform-line: #dedee7;
  --platform-red: #e84342;
  --platform-purple: #7452e8;
  font-family: "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--platform-ink); background: #fff; font-size: 15px; line-height: 1.5; }
button, input { font: inherit; }
a { color: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 3px solid #7258dc; outline-offset: 3px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.platform-header { position: relative; z-index: 5; display: flex; min-height: 64px; align-items: center; gap: 30px; padding: 0 clamp(18px, 4vw, 56px); border-bottom: 1px solid #e6e6eb; background: #fff; }
.platform-brand { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 2px; text-decoration: none; font-size: 22px; font-weight: 800; letter-spacing: -1.4px; }
.platform-brand-mark { display: grid; width: 24px; height: 24px; place-items: center; margin-right: 3px; border-radius: 6px; color: white; background: var(--platform-red); font-size: 14px; letter-spacing: 0; }
.platform-brand span:last-child { color: var(--platform-red); }
.platform-nav { display: flex; min-width: 0; align-items: center; gap: clamp(14px, 2vw, 28px); }
.platform-nav a { color: #3d3d49; font-size: 12px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.platform-nav a:hover { color: var(--platform-red); }
.platform-nav .nav-tools { display: inline-flex; align-items: center; gap: 6px; }
.nav-tools svg { width: 11px; height: 11px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.platform-account { display: flex; align-items: center; gap: 9px; margin-left: auto; white-space: nowrap; }
.platform-account a { font-size: 12px; font-weight: 700; text-decoration: none; }
.platform-account .account-status { max-width: 190px; overflow: hidden; color: #8e2529; font-size: 11px; text-overflow: ellipsis; }
.platform-account form { margin: 0; }
.platform-account > a.account-login { max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
.platform-account .account-login { padding: 8px 10px; }
.platform-account .account-signup { padding: 9px 14px; border-radius: 5px; color: #fff; background: var(--platform-red); }
.platform-account .account-signup:hover { background: #c93132; }
.platform-menu-toggle { display: none; width: 40px; height: 38px; border: 1px solid var(--platform-line); border-radius: 5px; background: #fff; color: var(--platform-ink); cursor: pointer; }
.platform-menu-toggle svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.platform-footer { margin-top: 90px; padding: 44px clamp(18px, 5vw, 72px) 18px; color: #f6f6fa; background: #282832; }
.footer-columns { display: grid; grid-template-columns: repeat(5, minmax(120px, 1fr)) minmax(170px, 1.15fr); gap: 24px; max-width: 1320px; margin: 0 auto; }
.footer-column h2 { margin: 0 0 14px; color: #fff; font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.footer-column a { display: block; width: fit-content; margin: 8px 0; color: #d2d2dc; font-size: 12px; text-decoration: none; }
.footer-column a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.footer-aside { color: #c4c4d0; font-size: 12px; }
.footer-aside .platform-brand { color: #fff; }
.footer-aside .platform-brand span:last-child { color: #ff7470; }
.footer-aside p { max-width: 30ch; margin: 12px 0 0; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; max-width: 1320px; margin: 34px auto 0; padding-top: 14px; border-top: 1px solid #555560; color: #c4c4d0; font-size: 11px; }
.footer-bottom a { color: inherit; }
.footer-credit { display: grid; gap: 3px; }
.footer-credit strong { color: #fff; }
.account-page { min-height: 65vh; display: grid; place-items: center; padding: 56px 20px; background: #f7f7fb; }
.account-card { width: min(100%, 430px); padding: 34px; border: 1px solid var(--platform-line); border-radius: 12px; background: #fff; box-shadow: 0 16px 40px #2626380d; }
.account-card h1 { margin: 0; font-size: 30px; letter-spacing: -.045em; }
.account-card > p { margin: 8px 0 25px; color: var(--platform-muted); font-size: 14px; }
.account-card label { display: block; margin: 16px 0 6px; font-size: 13px; font-weight: 700; }
.account-card input { width: 100%; min-height: 45px; padding: 10px 12px; border: 1px solid #c9c9d3; border-radius: 5px; color: var(--platform-ink); background: #fff; }
.account-submit { width: 100%; min-height: 46px; margin-top: 22px; border: 0; border-radius: 5px; color: #fff; background: var(--platform-red); font-weight: 750; cursor: pointer; }
.account-submit:hover { background: #c93132; }
.account-note { margin: 18px 0 0 !important; text-align: center; font-size: 13px !important; }
.account-note a, .account-links a { color: #b52f36; font-weight: 700; text-decoration: none; }
.account-links { display: flex; justify-content: space-between; gap: 12px; margin-top: 15px; font-size: 12px; }
.account-alert { margin: 0 0 18px; padding: 12px 14px; border: 1px solid #ecc5c3; border-radius: 5px; color: #8e2529; background: #fff4f3; font-size: 13px; }
.account-alert.is-success { border-color: #b6d9c5; color: #24553a; background: #f2fbf5; }
.account-hint { margin-top: 7px; color: var(--platform-muted); font-size: 12px; }
@media (max-width: 850px) {
  .platform-header { min-height: 60px; gap: 16px; }
  .platform-menu-toggle { display: grid; place-items: center; order: 3; }
  .platform-nav { position: absolute; top: calc(100% - 1px); right: 0; left: 0; display: none; align-items: stretch; gap: 0; padding: 8px 18px 14px; border-bottom: 1px solid var(--platform-line); background: #fff; }
  .platform-nav.is-open { display: grid; }
  .platform-nav a { padding: 11px 4px; border-bottom: 1px solid #eeeef2; }
  .platform-account { margin-left: auto; }
  .platform-account .account-login { padding: 7px; }
  .footer-columns { grid-template-columns: repeat(2, minmax(130px, 1fr)); gap: 28px; }
  .footer-aside { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .platform-header { padding: 0 12px; gap: 8px; }
  .platform-brand { font-size: 19px; }
  .platform-account { gap: 2px; }
  .platform-account a { font-size: 11px; }
  .platform-account .account-status { max-width: 120px; }
  .platform-account > a.account-login { max-width: 125px; }
  .platform-account .account-signup { padding: 8px 10px; }
  .platform-menu-toggle { width: 36px; height: 36px; }
  .account-card { padding: 25px 20px; }
  .footer-bottom { flex-direction: column; }
}