:root {
  color-scheme: dark;
  --panel: rgba(12, 16, 24, 0.76);
  --panel-border: rgba(255, 255, 255, 0.14);
  --text: #f4f7ff;
  --muted: rgba(244, 247, 255, 0.72);
  --accent: #ff5e66;
  --accent-2: #74d0ff;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.36);
}

* { box-sizing: border-box; }

html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  color: var(--text);
}

body {
  background:
    radial-gradient(circle at top, rgba(116, 208, 255, 0.16), transparent 34%),
    radial-gradient(circle at 75% 18%, rgba(255, 94, 102, 0.14), transparent 24%),
    linear-gradient(180deg, #10223d 0%, #09111d 58%, #03060a 100%);
}

a { color: inherit; text-decoration: none; }

.hub {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  padding: 20px;
  isolation: isolate;
}

.hub__backdrop {
  position: absolute;
  inset: 0;
  background-image: url("./kayusha-photo.jpg");
  background-size: cover;
  background-position: center;
  filter: blur(10px) brightness(0.52) saturate(1.08);
  transform: scale(1.08);
  opacity: 0.88;
  z-index: -2;
}

.hub__backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 10, 20, 0.06), rgba(5, 10, 20, 0.58) 50%, rgba(3, 7, 15, 0.94)),
    radial-gradient(circle at 50% 16%, rgba(116, 208, 255, 0.16), transparent 34%);
}

.hub__panel {
  width: min(1040px, 100%);
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  border-radius: 30px;
  padding: 28px;
}

.hub__eyebrow {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.hub h1 {
  margin: 0;
  font-size: clamp(38px, 5vw, 70px);
  line-height: 0.95;
}

.hub p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 66ch;
}

.hub__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.hub-card {
  display: block;
  border-radius: 24px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)),
    rgba(10, 16, 31, 0.62);
  box-shadow: var(--shadow);
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.hub-card:hover {
  transform: translateY(-2px);
  border-color: rgba(116, 208, 255, 0.34);
}

.hub-card__tag {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hub-card__title {
  margin-top: 14px;
  font-size: 28px;
  font-weight: 800;
}

.hub-card__text {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.5;
}

.hub-card__action {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 94, 102, 0.28), rgba(116, 208, 255, 0.22));
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.hub__footer {
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
}

@media (max-width: 720px) {
  .hub__panel { padding: 18px; border-radius: 24px; }
  .hub__grid { grid-template-columns: 1fr; }
  .hub-card__title { font-size: 24px; }
}