:root {
  color-scheme: light;
  --background: #f8f8f5;
  --ink: #343631;
  --muted: #777970;
  --line: #d9dbd2;
  --focus: #7c8072;
  --error: #9b463e;
  font-family: "Apple SD Gothic Neo", "Malgun Gothic", Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 280px; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; background: var(--background); color: var(--ink); }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button, a { touch-action: manipulation; }
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }

.site-header, main, footer { width: min(100%, 720px); padding-inline: 30px; margin-inline: auto; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 45px; }
.wordmark { display: flex; align-items: baseline; gap: 11px; line-height: 1.2; }
.wordmark-ko { font-size: 1.875rem; font-weight: 600; letter-spacing: -0.07em; }
.wordmark-en { color: var(--muted); font-family: Arial, sans-serif; font-size: 1rem; font-weight: 400; letter-spacing: -0.04em; }
.language-switch { display: flex; align-items: center; gap: 12px; }
.language-switch button { min-height: 44px; padding: 10px 3px; border: 0; background: transparent; color: var(--muted); font-size: 0.875rem; line-height: 1.5; }
.language-switch button[aria-pressed="true"] { color: var(--ink); font-weight: 600; text-decoration: underline; text-decoration-color: #b7bab0; text-underline-offset: 5px; text-decoration-thickness: 1px; }
.language-switch button:hover { color: var(--ink); }

main { margin-top: 56px; margin-bottom: 58px; text-align: left; }
h1 { margin: 0 0 23px; font-size: 1.5rem; font-weight: 600; line-height: 1.6; letter-spacing: -0.035em; word-break: keep-all; overflow-wrap: break-word; }
h1 span { display: block; }
.intro-copy { margin: 0; font-size: 1.1875rem; line-height: 1.8; letter-spacing: -0.02em; word-break: keep-all; overflow-wrap: break-word; text-wrap: pretty; }
.request-example { margin: 26px 0; padding: 1px 0 1px 19px; border-left: 2px solid #cfd1c6; color: #676a60; font-size: 1.125rem; font-weight: 400; line-height: 1.85; letter-spacing: -0.02em; word-break: keep-all; overflow-wrap: break-word; }

.waitlist { width: 100%; max-width: 530px; margin-top: 40px; }
h2 { margin: 0 0 14px; font-size: 1rem; font-weight: 500; line-height: 1.6; letter-spacing: -0.02em; }
.form-row { display: flex; align-items: stretch; gap: 9px; }
input[type="email"] { flex: 1; width: 100%; min-width: 0; min-height: 46px; padding: 11px 13px; color: var(--ink); border: 1px solid var(--line); border-radius: 4px; background: transparent; font-size: 1rem; line-height: 1.5; }
input[type="email"]::placeholder { color: #82857b; opacity: 1; }
input[type="email"]:focus { border-color: var(--focus); }
input[aria-invalid="true"] { border-color: var(--error); }
.submit-button { flex-shrink: 0; min-height: 46px; padding: 11px 17px; border: 1px solid #d6d8cf; border-radius: 4px; background: #e9eae3; color: var(--ink); font-size: 0.875rem; font-weight: 500; line-height: 1.5; transition: background 150ms; }
.submit-button:hover { background: #dddfd5; }
.submit-button:disabled { cursor: not-allowed; opacity: 0.6; }
.form-note, .form-status { font-size: 0.8125rem; line-height: 1.65; letter-spacing: -0.01em; }
.form-note { color: var(--muted); margin: 11px 0 0; }
.form-status { margin: 9px 0 0; color: var(--error); }
.form-status:empty { display: none; }
.form-status[data-state="info"] { color: var(--muted); }
.form-status[data-state="success"] { color: var(--ink); }

footer { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 12px 24px; margin-top: auto; padding-bottom: 28px; color: var(--muted); font-size: 0.8125rem; line-height: 1.6; }
footer a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

html[lang="en"] .wordmark-en { order: -1; color: var(--ink); font-size: 1.875rem; font-weight: 500; letter-spacing: -0.06em; }
html[lang="en"] .wordmark-ko { color: var(--muted); font-size: 1rem; font-weight: 400; letter-spacing: -0.04em; }
html[lang="en"] h1 { font-family: Arial, sans-serif; font-size: 1.5rem; line-height: 1.5; letter-spacing: -0.035em; }
html[lang="en"] .intro-copy, html[lang="en"] .request-example { font-family: Arial, sans-serif; line-height: 1.65; letter-spacing: -0.015em; }

@media (max-width: 600px) {
  .site-header, main, footer { padding-inline: 24px; }
  .site-header { margin-top: 23px; }
  main { margin-top: 43px; margin-bottom: 45px; }
  h1 { font-size: 1.375rem; margin-bottom: 22px; }
  .intro-copy { font-size: 1.0625rem; line-height: 1.85; }
  .request-example { margin-block: 23px; padding-left: 15px; font-size: 1.0625rem; }
  .waitlist { margin-top: 34px; }
  .submit-button { padding-inline: 13px; }
  html[lang="en"] h1 { font-size: 1.375rem; }
  footer { padding-bottom: 23px; }
}

@media (max-width: 359px) {
  .site-header, main, footer { padding-inline: 20px; }
  .form-row { flex-direction: column; }
  .submit-button { align-self: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}