/* Davis Learning hub — shared + space accents. 390px-first. */
:root {
  --bg: #0b1638;
  --bg-elev: #141f45;
  --ink: #eef2ff;
  --ink-soft: #a8b4d8;
  --line: rgba(165, 243, 252, 0.18);
  --accent: #22d3ee;
  --accent-2: #e879f9;
  --teddy: #34d399;
  --teddy-bg: rgba(52, 211, 153, 0.14);
  --teddy-ink: #6ee7b7;
  --jack: #60a5fa;
  --jack-bg: rgba(96, 165, 250, 0.14);
  --jack-ink: #93c5fd;
  --roman: #f87171;
  --roman-bg: rgba(248, 113, 113, 0.14);
  --roman-ink: #fca5a5;
  --off: #7c86a8;
  --radius: 22px;
  --tap: 48px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.25), 0 16px 40px rgba(0, 0, 0, 0.35);
  --glow: 0 0 0 1px rgba(34, 211, 238, 0.35), 0 0 22px rgba(34, 211, 238, 0.28), 0 0 48px rgba(232, 121, 249, 0.18);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.45;
  background:
    radial-gradient(900px 420px at 12% -8%, rgba(232, 121, 249, 0.18), transparent 55%),
    radial-gradient(800px 380px at 110% 0%, rgba(34, 211, 238, 0.14), transparent 50%),
    radial-gradient(700px 500px at 50% 120%, rgba(52, 211, 153, 0.10), transparent 55%),
    linear-gradient(165deg, #1a1040 0%, #0b1638 42%, #070d22 100%);
  background-attachment: fixed;
  min-height: 100dvh;
}
button, a { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
a { text-decoration: none; }
[hidden] { display: none !important; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--bg-elev);
  color: var(--ink);
  padding: 8px 12px;
  z-index: 99;
}
.skip:focus { left: 12px; top: 12px; }

.app {
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  min-height: 100dvh;
  padding: calc(20px + var(--safe-t)) calc(16px + var(--safe-r)) calc(32px + var(--safe-b)) calc(16px + var(--safe-l));
  position: relative;
}

.app::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 8% 18%, rgba(255,255,255,0.85), transparent),
    radial-gradient(1px 1px at 22% 62%, rgba(165,243,252,0.7), transparent),
    radial-gradient(1.5px 1.5px at 48% 12%, rgba(255,255,255,0.75), transparent),
    radial-gradient(1px 1px at 72% 28%, rgba(240,171,252,0.7), transparent),
    radial-gradient(1.5px 1.5px at 88% 55%, rgba(255,255,255,0.65), transparent),
    radial-gradient(1px 1px at 64% 78%, rgba(165,243,252,0.55), transparent),
    radial-gradient(1px 1px at 34% 88%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 15% 42%, rgba(253,230,138,0.55), transparent);
  opacity: 0.7;
  z-index: 0;
}
.app > * { position: relative; z-index: 1; }

.kicker {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 0 0 6px;
}
h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 34px;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 8px;
}
.lede {
  margin: 0 0 22px;
  color: var(--ink-soft);
  font-size: 15px;
}

.hub-header { margin-bottom: 8px; }
.kid-grid { display: grid; gap: 12px; }

.kid-card {
  display: grid;
  gap: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow);
  min-height: 96px;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.12s ease, box-shadow 0.2s ease;
  border-left: 5px solid var(--off);
}
a.kid-card:active { transform: scale(0.985); }
.kid-card.teddy {
  border-left-color: var(--teddy);
  background: linear-gradient(135deg, var(--teddy-bg), transparent 55%), var(--bg-elev);
  box-shadow: var(--shadow), var(--glow);
  animation: pulse-glow 2.8s ease-in-out infinite;
}
.kid-card.jack {
  border-left-color: var(--jack);
  background: linear-gradient(135deg, var(--jack-bg), transparent 55%), var(--bg-elev);
}
.kid-card.roman {
  border-left-color: var(--roman);
  background: linear-gradient(135deg, var(--roman-bg), transparent 55%), var(--bg-elev);
}
.kid-card.soon { opacity: 0.72; cursor: default; }

.kid-badge {
  display: inline-flex;
  align-self: start;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  background: rgba(52, 211, 153, 0.2);
  color: var(--teddy-ink);
  border-radius: 999px;
  padding: 4px 10px;
  margin-bottom: 4px;
}
.kid-badge.muted {
  background: rgba(124, 134, 168, 0.2);
  color: var(--ink-soft);
}
.kid-name {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.kid-card.teddy .kid-name { color: var(--teddy-ink); }
.kid-card.jack .kid-name { color: var(--jack-ink); }
.kid-card.roman .kid-name { color: var(--roman-ink); }
.kid-meta { font-size: 14px; color: var(--ink-soft); }

@keyframes pulse-glow {
  0%, 100% {
    box-shadow:
      var(--shadow),
      0 0 0 1px rgba(34, 211, 238, 0.28),
      0 0 18px rgba(34, 211, 238, 0.22),
      0 0 40px rgba(232, 121, 249, 0.12);
  }
  50% {
    box-shadow:
      var(--shadow),
      0 0 0 1px rgba(232, 121, 249, 0.45),
      0 0 28px rgba(34, 211, 238, 0.38),
      0 0 56px rgba(232, 121, 249, 0.28);
  }
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 14px;
  margin: 0 0 8px;
}
.back-link:active { color: var(--ink); }

.feature-card {
  display: grid;
  gap: 8px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow), var(--glow);
  animation: pulse-glow 2.8s ease-in-out infinite;
  margin-top: 12px;
}
.feature-card h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.feature-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 12px 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, #34d399, #22d3ee);
  color: #062016;
  font-weight: 700;
  font-size: 16px;
  margin-top: 8px;
  box-shadow: 0 8px 24px rgba(34, 211, 238, 0.28);
}
.btn-primary:active { transform: scale(0.98); }

.placeholder-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(253, 230, 138, 0.12);
  border: 1px solid rgba(253, 230, 138, 0.35);
  color: #fde68a;
  border-radius: 14px;
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 16px;
}
.placeholder-banner span {
  display: inline-flex;
  background: #fde68a;
  color: #1a1040;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 3px 8px;
  flex: none;
  font-weight: 800;
}