:root {
  --bg: #eceff1;
  --panel: #f8f9fa;
  --text: #16191d;
  --muted: #58616a;
  --line: #bcc4ca;
  --line-strong: #8c969d;
  --accent: #1c2329;
  --accent-contrast: #f3f5f6;
  --shadow: 0 18px 50px rgba(17, 22, 26, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0)) 0 0 / 100% 220px no-repeat,
    linear-gradient(135deg, #eef1f2, #e2e7ea);
}

.page {
  min-height: 100vh;
  padding: 24px;
  display: grid;
  align-items: center;
}

.panel {
  width: min(100%, 42rem);
  padding: 1.5rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0.9)),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 27px,
      rgba(28, 35, 41, 0.03) 27px,
      rgba(28, 35, 41, 0.03) 28px
    ),
    var(--panel);
  box-shadow: var(--shadow);
}

.kicker {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(1.5rem, 6vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.headline {
  margin: 1rem 0 0;
  max-width: 34rem;
  color: var(--accent);
  font-size: 1.05rem;
  line-height: 1.45;
  font-weight: 600;
}

.summary {
  margin: 1rem 0 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.actions {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.75rem;
}

.button {
  display: block;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line-strong);
  color: var(--text);
  text-decoration: none;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: rgba(255, 255, 255, 0.76);
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover,
.button:focus-visible {
  background: #ffffff;
  border-color: var(--accent);
  transform: translateY(-1px);
}

.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.button-primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #2a343c;
  border-color: #2a343c;
}

@media (min-width: 640px) {
  .page {
    padding: 40px;
  }

  .panel {
    padding: 2.5rem;
  }

  .actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}