:root {
  --bg: #0f172a;
  --panel: rgba(255, 255, 255, 0.08);
  --text: #e5e7eb;
  --muted: #a1a1aa;
  --accent: #60a5fa;
  --accent-2: #34d399;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(900px 500px at 20% 0%, rgba(96, 165, 250, 0.25), transparent),
    radial-gradient(700px 400px at 90% 30%, rgba(52, 211, 153, 0.18), transparent),
    var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 28px 16px;
}

h1 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
}

.buttons {
  width: min(520px, 100%);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 16px;
  border-radius: 16px;
  background: var(--panel);
  backdrop-filter: blur(6px);
}

.btn {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(96, 165, 250, 0.18);
  border-color: rgba(96, 165, 250, 0.45);
}

.btn:active {
  transform: translateY(0px);
}

.output {
  width: min(520px, 100%);
  padding: 16px;
  border-radius: 16px;
  background: var(--panel);
  color: var(--muted);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.datetime {
  position: fixed;
  top: 14px;
  right: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-end;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  color: var(--text);
}

.datetime__date {
  font-size: 13px;
  color: var(--muted);
}

.datetime__time {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.2px;
}