:root {
  color-scheme: light;
  --ink: #1c2430;
  --muted: #5c6570;
  --line: #d5dbe3;
  --paper: #eef1f4;
  --card: #ffffff;
  --green: #1f4d3a;
  --green-ink: #f4f7f5;
  --notice-bg: #f4efe4;
  --notice-line: #e2d3b0;
  --notice-ink: #6a4e12;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

.frame {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

aside {
  background: var(--green);
  color: var(--green-ink);
  padding: 48px 36px;
}

.mark {
  width: 32px;
  height: 32px;
  display: block;
}

.org {
  margin: 28px 0 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
}

aside h1 {
  margin: 6px 0 0;
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.aside-copy {
  margin: 18px 0 0;
  max-width: 220px;
  line-height: 1.5;
  color: #d5e4dc;
}

main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 8vw;
  background: var(--card);
}

main h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.lede {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.notice {
  margin: 20px 0 0;
  padding: 12px 14px;
  background: var(--notice-bg);
  border: 1px solid var(--notice-line);
  border-radius: 6px;
  color: var(--notice-ink);
  line-height: 1.45;
}

form {
  margin-top: 22px;
  max-width: 380px;
}

label {
  display: block;
  margin-top: 16px;
}

label span {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
}

input {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
}

input:focus {
  outline: 2px solid #9bb8aa;
  border-color: var(--green);
}

button {
  margin-top: 22px;
  width: 100%;
  height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--green);
  color: var(--green-ink);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

button:hover { background: #183e2e; }

.alt {
  margin: 18px 0 0;
  font-size: 14px;
}

.alt a {
  color: var(--green);
  text-decoration: none;
  font-weight: 600;
}

.alt a:hover { text-decoration: underline; }

@media (max-width: 760px) {
  .frame { grid-template-columns: 1fr; }
  aside { padding: 28px 24px 24px; }
  aside h1 { font-size: 32px; }
  .aside-copy { display: none; }
  main { padding: 28px 24px 48px; }
}