@font-face {
  font-family: Literata;
  src: url("/start/literata.ttf") format("truetype");
  font-weight: 200 900;
  font-display: swap;
}
@font-face {
  font-family: Inter;
  src: url("/start/inter.ttf") format("truetype");
  font-weight: 100 900;
  font-display: swap;
}
:root {
  --paper: #fcfaf7;
  --ink: #171918;
  --muted: #58616a;
  --line: #e5e7e9;
  --sky: #b9e0ef;
  --glass: rgba(255, 255, 255, 0.76);
  --serif: Literata, Georgia, serif;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --glass-shadow:
    inset 0 1px 1px #fffffff2, inset 0 -1px 1px #ffffff80, 0 8px 24px #2b4e6a1a,
    0 2px 4px #2b4e6a08;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
* {
  box-sizing: border-box;
}
html {
  scroll-padding-top: 120px;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
p {
  margin: 0;
}
svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.05em;
  margin: 0;
  text-wrap: balance;
}
h1 {
  font-size: clamp(54px, 6.2vw, 88px);
  line-height: 1.03;
}
h2 {
  font-size: clamp(36px, 3.7vw, 50px);
  line-height: 1.2;
}
h3 {
  font-size: 25px;
  line-height: 1.3;
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
}
.brand {
  font: 500 24px/1.2 var(--serif);
  letter-spacing: -0.06em;
  white-space: nowrap;
}
.brand span {
  display: block;
  font: 10px/1.4 var(--sans);
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-top: 4px;
}
.glass-nav {
  position: sticky;
  z-index: 10;
  top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 28px auto 0;
  padding: 10px 11px 10px 27px;
  width: calc(100% - 64px);
  max-width: 1020px;
  min-height: 70px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid #ffffffb8;
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  box-shadow: var(--glass-shadow);
}
.nav-login,
.dark-button,
.glass-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border-radius: 999px;
  min-height: 48px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 500;
  transition:
    transform 200ms var(--ease),
    background 200ms,
    box-shadow 200ms;
}
.nav-login,
.dark-button {
  background: var(--ink);
  color: #fff;
}
.nav-login:hover,
.dark-button:hover {
  background: #34414b;
}
.glass-button {
  background: #ffffffb8;
  border: 1px solid #ffffffb0;
  backdrop-filter: blur(16px);
  box-shadow: var(--glass-shadow);
  padding: 15px 26px;
}
.glass-button:hover {
  background: #fff;
}
.nav-login:hover,
.dark-button:hover,
.glass-button:hover {
  transform: translateY(-2px);
}
.nav-login:active,
.dark-button:active,
.glass-button:active {
  transform: scale(0.97);
}
:focus-visible {
  outline: 3px solid #326eab;
  outline-offset: 4px;
}
.skip {
  position: absolute;
  z-index: 30;
  top: 0;
  left: 20px;
  padding: 12px;
  background: #fff;
  transform: translateY(-110%);
}
.skip:focus {
  transform: none;
}
.sky {
  position: relative;
  margin: -86px 20px 0;
  min-height: 780px;
  padding: 158px 24px 220px;
  border-radius: 28px;
  background: var(--sky) url("/start/paper-sky.svg") center/cover no-repeat;
  text-align: center;
  box-shadow: 0 18px 36px #263c5012;
  overflow: hidden;
}
.intro {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: auto;
}
.intro .eyebrow {
  color: #344d5c;
  margin-bottom: 22px;
  letter-spacing: 0.16em;
}
.lead {
  font-size: 18px;
  line-height: 1.65;
  color: #344d5c;
  margin: 24px 0 28px;
}
.private {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-size: 11px;
  color: #344d5c;
  margin: 18px 0 0;
}
.private svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}
.paper {
  position: relative;
  max-width: 1000px;
  margin: -110px auto 0;
  padding: 42px 64px 34px;
  border: 1px solid #fff;
  border-radius: 24px;
  background: #fff;
  box-shadow:
    0 20px 60px #273d5110,
    0 2px 6px #273d5108;
}
.paper-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.monogram {
  font: 27px var(--serif);
  display: grid;
  place-content: center;
  width: 48px;
  height: 55px;
  background: #edf3f6;
  color: #35546b;
  border: 1px solid #dce5eb;
  border-radius: 8px;
  box-shadow: 3px 3px #f5f8fa;
}
.welcome-text {
  max-width: 62ch;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
  margin-top: 26px;
}
.possibilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 38px 0;
  margin: 40px 0;
}
.possibilities svg {
  width: 30px;
  height: 30px;
  color: #385b72;
  margin-bottom: 18px;
}
.possibilities h3 {
  font: 500 15px/1.5 var(--sans);
  letter-spacing: -0.025em;
  margin-bottom: 10px;
}
.possibilities p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}
.access {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 0 0 28px;
}
.access .eyebrow {
  font-size: 9px;
  margin-bottom: 10px;
}
.access h3 {
  font-size: 26px;
}
.access p:not(.eyebrow) {
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
  margin-top: 10px;
  max-width: 44ch;
}
.dark-button {
  flex-shrink: 0;
}
details {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  font-size: 13px;
  color: var(--muted);
}
summary {
  cursor: pointer;
  min-height: 44px;
  padding: 12px 0;
  color: var(--ink);
}
details p {
  line-height: 1.85;
  max-width: 70ch;
  margin: 10px 0 14px;
}
footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 40px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
footer .brand {
  font-size: 20px;
}
footer span,
footer > a:last-child {
  font-size: 11px;
  color: var(--muted);
}
footer > a:last-child {
  display: flex;
  align-items: center;
  min-height: 44px;
}
footer > a:last-child:hover {
  text-decoration: underline;
}
@supports not (backdrop-filter: blur(20px)) {
  .glass-nav,
  .glass-button {
    background: #f5f9fc;
  }
}
@media (prefers-reduced-motion: no-preference) {
  .intro {
    animation: arrive 600ms var(--ease) both;
  }
  .paper {
    animation: arrive 500ms var(--ease) both;
  }
  @keyframes arrive {
    from {
      opacity: 0;
      transform: translateY(12px);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }
}
@media (max-width: 760px) {
  .glass-nav {
    top: 12px;
    margin-top: 18px;
    width: calc(100% - 36px);
    padding: 9px 9px 9px 17px;
    min-height: 64px;
    gap: 8px;
  }
  .brand {
    font-size: 19px;
  }
  .brand span {
    font-size: 8px;
    letter-spacing: 0;
  }
  .nav-login {
    font-size: 12px;
    padding: 10px 14px;
    gap: 6px;
    min-height: 44px;
  }
  .sky {
    margin: -70px 10px 0;
    padding: 138px 20px 190px;
    min-height: 730px;
    border-radius: 24px;
    background-size: auto 100%;
  }
  .intro .eyebrow {
    font-size: 9px;
    line-height: 1.7;
    letter-spacing: 0.09em;
    margin-bottom: 26px;
  }
  h1 {
    font-size: clamp(43px, 11.5vw, 65px);
    line-height: 1.08;
  }
  .lead {
    font-size: 16px;
    line-height: 1.8;
    margin: 24px 0;
  }
  .glass-button {
    font-size: 13px;
    padding: 14px 22px;
  }
  .private {
    font-size: 9px;
    gap: 5px;
    margin-top: 18px;
  }
  .paper {
    margin: -90px 20px 0;
    padding: 28px 24px 22px;
    border-radius: 20px;
  }
  .paper-top {
    margin-bottom: 28px;
  }
  .paper-top .eyebrow {
    font-size: 9px;
  }
  .monogram {
    width: 40px;
    height: 46px;
    font-size: 23px;
  }
  h2 {
    font-size: 34px;
    line-height: 1.23;
  }
  .welcome-text {
    font-size: 15px;
    line-height: 1.9;
    margin-top: 24px;
  }
  .possibilities {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 30px 0;
    margin: 32px 0;
  }
  .possibilities > div {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 6px 18px;
  }
  .possibilities svg {
    grid-row: span 2;
    margin: 0;
  }
  .possibilities h3 {
    margin: 0;
    font-size: 14px;
  }
  .possibilities p {
    font-size: 13px;
  }
  .access {
    display: block;
  }
  .access h3 {
    font-size: 25px;
  }
  .access .dark-button {
    margin-top: 24px;
    font-size: 13px;
    min-height: 46px;
  }
  details {
    font-size: 12px;
  }
  footer {
    padding: 40px 26px;
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  footer .brand {
    font-size: 23px;
  }
  footer span {
    font-size: 10px;
  }
}
@media (max-width: 360px) {
  .brand {
    font-size: 17px;
  }
  .brand span {
    font-size: 7px;
  }
  .nav-login {
    padding: 10px 11px;
    font-size: 11px;
  }
  .paper {
    padding: 25px 20px;
  }
  h2 {
    font-size: 30px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  .nav-login:hover,
  .dark-button:hover,
  .glass-button:hover,
  .nav-login:active,
  .dark-button:active,
  .glass-button:active {
    transform: none;
  }
}