:root {
  --bg: #e9efe8;
  --surface: #ffffff;
  --ink: #1c2a23;
  --muted: #5a6b62;
  --accent: #1f6f4a;
  --accent-hover: #185838;
  --border: #e6e4dd;
  --shadow: 0 1px 2px rgba(20, 30, 25, 0.04), 0 8px 24px rgba(20, 30, 25, 0.06);
  --radius: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 18px 28px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  font-size: 14px;
  color: var(--muted);
}

.site-header nav { padding-top: 18px; }

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
}

.site-header nav a:hover { color: var(--accent); }

.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: inherit;
}

.brand-logo {
  height: 44px;
  width: auto;
  display: block;
}

.brand-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 64px 48px;
  width: 100%;
  max-width: 760px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.logo {
  width: 180px;
  height: 180px;
  border-radius: 32px;
  object-fit: contain;
  background: #f0efe9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 8px;
}

.title {
  font-size: 34px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.subtitle {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin: 0;
}

.launch-btn {
  margin-top: 20px;
  display: inline-block;
  padding: 18px 104px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background 0.15s ease, transform 0.1s ease;
  border: none;
  cursor: pointer;
}

.launch-btn:hover {
  background: var(--accent-hover);
}

.launch-btn:active { transform: translateY(1px); }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 760px));
  gap: 32px;
  width: 100%;
  max-width: 1560px;
  justify-content: center;
}

@media (max-width: 1100px) {
  .grid { grid-template-columns: minmax(0, 760px); }
}

@media (max-width: 720px) {
  .card { padding: 44px 28px; gap: 18px; }
  .logo { width: 140px; height: 140px; }
  .title { font-size: 26px; }
  .subtitle { font-size: 19px; }
  .launch-btn { padding: 14px 80px; font-size: 16px; }
  .site-header { padding: 14px 18px; }
  .brand-logo { height: 36px; }
}