:root {
  --bg: #060607;
  --bg-glow-1: rgba(247, 147, 26, 0.24);
  --bg-glow-2: rgba(56, 189, 248, 0.2);
  --panel-bg: linear-gradient(145deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.03));
  --panel-border: rgba(255, 255, 255, 0.16);
  --title: #f5f7fb;
  --text: rgba(237, 242, 250, 0.92);
  --muted: rgba(214, 224, 242, 0.72);
  --accent: #f7931a;
  --accent-2: #4cc9ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 12%, var(--bg-glow-1), transparent 42%),
    radial-gradient(circle at 88% 84%, var(--bg-glow-2), transparent 42%),
    var(--bg);
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 18px 40px;
  display: grid;
  gap: 14px;
  animation: enter 420ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  backdrop-filter: blur(16px) saturate(1.12);
  -webkit-backdrop-filter: blur(16px) saturate(1.12);
  box-shadow:
    0 20px 56px rgba(0, 0, 0, 0.36),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.hero {
  padding: 22px;
}

.eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: rgba(247, 147, 26, 0.95);
  font-weight: 700;
}

h1 {
  margin: 8px 0;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.04;
  color: var(--title);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: clamp(15px, 1.8vw, 18px);
}

.quick-link {
  margin: 12px 0 0;
}

.quick-link a {
  color: #bfe9ff;
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(76, 201, 255, 0.35);
}

.quick-link a:hover {
  color: #def5ff;
  border-bottom-color: rgba(76, 201, 255, 0.7);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: flex-start;
  padding: 14px;
}

button {
  height: 40px;
  border-radius: 999px;
  padding: 0 14px;
  font: inherit;
}

button {
  border: 1px solid rgba(247, 147, 26, 0.32);
  color: #fff;
  background: linear-gradient(130deg, rgba(247, 147, 26, 0.96), rgba(255, 182, 69, 0.96));
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(247, 147, 26, 0.34);
}

.meta {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 14px;
  border-left: 3px solid rgba(247, 147, 26, 0.9);
}

.chart-wrap {
  padding: 14px;
}

#cycleChart {
  width: 100%;
  height: min(68vh, 620px);
}

.footer {
  padding: 10px 14px;
  color: var(--muted);
  font-size: 13px;
}

.footer p {
  margin: 0;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: rgba(255, 255, 255, 0.12);
  color: #f6fbff;
  padding: 2px 6px;
  border-radius: 6px;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.995);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 760px) {
  .hero {
    padding: 18px;
  }

  .controls {
    display: grid;
    grid-template-columns: 1fr;
  }

  button {
    width: 100%;
  }

  #cycleChart {
    height: min(58vh, 470px);
  }
}