:root {
  color-scheme: dark;
  --night: #090817;
  --night-soft: #111027;
  --panel: rgba(30, 27, 59, 0.72);
  --panel-line: rgba(191, 177, 255, 0.15);
  --text: #f6f3ff;
  --subtext: #b9b3cf;
  --violet: #9f8cff;
  --cyan: #65e6e0;
  --gold: #f2c976;
  --rose: #e88ba3;
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
  min-height: 100%;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% -5%, rgba(106, 78, 191, 0.32), transparent 31rem),
    radial-gradient(circle at 10% 35%, rgba(44, 187, 183, 0.10), transparent 25rem),
    linear-gradient(180deg, #090817 0%, #0c0a1b 50%, #070711 100%);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cyan); text-underline-offset: 0.2em; }
a:hover { color: #a2fffb; }

.shell {
  width: min(100% - 36px, 720px);
  margin: 0 auto;
  padding: 56px 0 48px;
}

header { text-align: center; }

.mark {
  display: block;
  width: 92px;
  height: 92px;
  margin: 0 auto 18px;
  filter: drop-shadow(0 0 26px rgba(101, 230, 224, 0.18));
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 8vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.tagline {
  margin: 12px 0 0;
  color: var(--subtext);
  font-size: 1.04rem;
}

.orbit-rule {
  width: 118px;
  height: 1px;
  margin: 26px auto;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
}

.languages {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 0 0 36px;
}

.languages button {
  appearance: none;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  padding: 8px 15px;
  color: var(--subtext);
  background: rgba(255,255,255,0.035);
  font: inherit;
  font-size: 0.86rem;
  cursor: pointer;
}

.languages button[aria-pressed="true"] {
  color: var(--text);
  border-color: rgba(101, 230, 224, 0.42);
  background: rgba(101, 230, 224, 0.10);
  box-shadow: 0 0 20px rgba(101, 230, 224, 0.08);
}

article { display: none; }
article.active { display: block; }

.lead {
  margin: 0 0 32px;
  color: #ded9ef;
  font-size: 1.08rem;
  text-align: center;
}

h2 {
  margin: 40px 0 13px;
  font-size: 1.28rem;
  letter-spacing: -0.015em;
}

h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--text);
}

p { margin: 0; }

.card {
  position: relative;
  margin: 12px 0;
  padding: 19px 20px;
  overflow: hidden;
  border: 1px solid var(--panel-line);
  border-radius: 20px;
  color: var(--subtext);
  background: linear-gradient(145deg, rgba(41, 35, 79, 0.72), rgba(20, 19, 43, 0.74));
  box-shadow: 0 18px 55px rgba(0,0,0,0.17);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet), transparent 80%);
  opacity: 0.72;
}

.card strong { color: var(--text); }
.card p + p { margin-top: 10px; }
.mail { font-size: 1.08rem; font-weight: 650; }
.path { color: #d8d1ff; }

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.fact {
  min-height: 112px;
  padding: 18px;
  border: 1px solid rgba(159, 140, 255, 0.15);
  border-radius: 18px;
  background: rgba(26, 23, 52, 0.64);
}

.fact .eyebrow {
  display: block;
  margin-bottom: 5px;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.fact p { color: var(--subtext); font-size: 0.92rem; }

.notice {
  border-color: rgba(242, 201, 118, 0.2);
  background: linear-gradient(145deg, rgba(75, 58, 32, 0.36), rgba(25, 22, 39, 0.72));
}

footer {
  margin-top: 46px;
  color: #7f7994;
  font-size: 0.78rem;
  text-align: center;
}

footer a { color: #aaa1c9; }

@media (max-width: 560px) {
  .shell { width: min(100% - 24px, 720px); padding-top: 36px; }
  .fact-grid { grid-template-columns: 1fr; }
  .card { padding: 17px; border-radius: 17px; }
  .lead { font-size: 1rem; }
}

@media (prefers-reduced-motion: no-preference) {
  .mark .pulse { animation: breathe 6s ease-in-out infinite; transform-origin: 50% 50%; }
  @keyframes breathe {
    0%, 100% { transform: scale(0.88); opacity: 0.7; }
    50% { transform: scale(1.06); opacity: 1; }
  }
}