*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f4f7f4;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.page {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  width: 100%;
  max-width: 960px;
}

.brand {
  flex: 1;
  max-width: 380px;
}

.brand-name {
  font-size: 2.8rem;
  font-weight: 700;
  color: #1a2e1d;
  letter-spacing: -0.03em;
}

.brand-name span {
  color: #c49a0e;
}

.brand-tagline {
  margin-top: 12px;
  font-size: 1rem;
  color: #7a9e82;
  line-height: 1.6;
}

.divider {
  width: 1px;
  height: 320px;
  background: #d6e8d8;
}

.auth-box {
  flex: 1;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sign-in-btn {
  padding: 12px 32px;
  background: #2e7d32;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

.sign-in-btn:hover {
  background: #1b5e20;
}

@media (max-width: 680px) {
  .page { flex-direction: column; gap: 32px; }
  .brand { max-width: 100%; text-align: center; }
  .brand-name { font-size: 2rem; }
  .divider { display: none; }
  .auth-box { max-width: 100%; width: 100%; }
}