/* ============================================================
   Sublime LMS — Solutions pages
   Reuses site.css / platform.css / platform-pages.css.
   Adds: hero stat panel + challenge→solution rows.
   ============================================================ */

.sol-reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.sol-reveal.in { opacity: 1; transform: none; }

/* ---- hero stat panel (the visual) ---- */
.sol-panel {
  position: relative; isolation: isolate;
  width: 100%; max-width: 520px; margin: 0 auto;
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: 0 44px 80px -38px rgba(15,23,42,.34), 0 14px 34px -18px rgba(15,23,42,.10);
  overflow: hidden;
}
.sol-panel::before {
  content: ''; position: absolute; z-index: -1; inset: -16% -10% -20% -10%;
  background:
    radial-gradient(58% 54% at 72% 26%, rgba(167,139,250,.30), transparent 70%),
    radial-gradient(52% 50% at 22% 94%, rgba(20,184,166,.16), transparent 72%);
  filter: blur(6px); pointer-events: none;
}
.sol-panel-top {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px; border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg,#FCFAFF,#fff);
}
.sol-panel-top .ico { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; flex-shrink: 0; }
.sol-panel-top .ico i { width: 20px; height: 20px; }
.sol-panel-top b { font-family: var(--font-display); font-size: 15px; font-weight: 700; color: var(--fg); letter-spacing: -0.01em; }
.sol-panel-top span { display: block; font-size: 11px; color: var(--fg-muted); margin-top: 1px; }
.sol-panel-top .live { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: var(--color-emerald-50); color: var(--color-emerald-700); font-size: 11px; font-weight: 700; }
.sol-panel-top .live i { width: 6px; height: 6px; border-radius: 999px; background: var(--color-emerald-500); animation: sol-breathe 1.8s ease-in-out infinite; }
@keyframes sol-breathe { 0%,100% { opacity: .5; } 50% { opacity: 1; } }

.sol-panel-body { padding: 20px; }
.sol-stat-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.sol-stat { background: var(--color-mist); border-radius: 12px; padding: 14px; }
.sol-stat .v { font-family: var(--font-display); font-size: 24px; font-weight: 800; color: var(--fg); letter-spacing: -0.03em; line-height: 1; display: inline-flex; align-items: baseline; }
.sol-stat .v small { font-size: 13px; color: var(--fg-muted); font-weight: 700; margin-left: 1px; }
.sol-stat .l { font-size: 10px; color: var(--fg-muted); margin-top: 6px; letter-spacing: .03em; }
.sol-stat .bar { height: 5px; border-radius: 999px; background: rgba(15,23,42,.06); overflow: hidden; margin-top: 9px; }
.sol-stat .bar span { display: block; height: 100%; border-radius: 999px; background: var(--color-violet-600); width: 0; animation: sol-bar 1.5s var(--ease-out) .3s forwards; }
.sol-stat.teal .bar span { background: var(--color-teal-500); }
.sol-stat.emerald .bar span { background: var(--color-emerald-500); }
@keyframes sol-bar { to { width: var(--w, 70%); } }

.sol-rows { display: flex; flex-direction: column; gap: 8px; }
.sol-row { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 10px; background: #fff; border: 1px solid var(--border-soft); }
.sol-row .ic { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; flex-shrink: 0; }
.sol-row .ic i { width: 14px; height: 14px; }
.sol-row.violet .ic { background: var(--color-violet-100); color: var(--color-violet-700); }
.sol-row.teal .ic { background: var(--color-teal-100); color: var(--color-teal-700); }
.sol-row.blue .ic { background: var(--color-blue-100); color: var(--color-blue-700); }
.sol-row.emerald .ic { background: var(--color-emerald-100); color: var(--color-emerald-700); }
.sol-row.amber .ic { background: var(--color-amber-100); color: var(--color-amber-600); }
.sol-row b { display: block; font-family: var(--font-display); font-weight: 650; font-size: 12.5px; color: var(--fg); }
.sol-row span { display: block; font-size: 10.5px; color: var(--fg-muted); }
.sol-row .meta { margin-left: auto; font-size: 11px; font-weight: 700; color: var(--color-emerald-700); }

/* ---- challenge → solution split list ---- */
.sol-cs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sol-cs-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-2xl); padding: 28px;
}
.sol-cs-card.problem { background: var(--color-mist); }
.sol-cs-card.solved { border-color: var(--color-violet-200); box-shadow: var(--shadow-violet-soft); position: relative; }
.sol-cs-card.solved::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-ai-primary); border-radius: var(--radius-2xl) var(--radius-2xl) 0 0; }
.sol-cs-eyebrow { display: flex; align-items: center; gap: 8px; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 18px; }
.sol-cs-eyebrow i { width: 14px; height: 14px; }
.sol-cs-card.problem .sol-cs-eyebrow { color: var(--fg-muted); }
.sol-cs-card.solved .sol-cs-eyebrow { color: var(--color-violet-700); }
.sol-cs-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.sol-cs-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; line-height: 1.45; }
.sol-cs-list li i { width: 17px; height: 17px; flex-shrink: 0; margin-top: 1px; }
.sol-cs-card.problem li { color: var(--fg-body); }
.sol-cs-card.problem li i { color: var(--color-slate-400); }
.sol-cs-card.solved li { color: var(--fg); }
.sol-cs-card.solved li i { color: var(--color-violet-600); }

@media (max-width: 760px) {
  .sol-cs { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .sol-panel-top .live i, .sol-stat .bar span { animation: none !important; }
  .sol-stat .bar span { width: var(--w, 70%) !important; }
  .sol-panel, .sol-panel::before, .sol-panel::after { animation: none !important; }
}

/* ============================================================
   Solutions hero panel — polished animated upgrade
   ============================================================ */
.sol-panel::before { animation: sol-aura 14s ease-in-out infinite; }
@keyframes sol-aura {
  0%,100% { transform: translate(0,0) scale(1); opacity: .9; }
  33%     { transform: translate(3%,-2%) scale(1.07); opacity: 1; }
  66%     { transform: translate(-2%,2%) scale(.96); opacity: .82; }
}
.sol-panel::after {
  content: ''; position: absolute; z-index: -1;
  width: 128%; aspect-ratio: 1/1; left: -14%; top: 50%;
  transform: translateY(-50%);
  background: conic-gradient(from 0deg, transparent 0deg, rgba(167,139,250,.16) 50deg, transparent 130deg, transparent 230deg, rgba(45,212,191,.13) 290deg, transparent 350deg);
  -webkit-mask: radial-gradient(closest-side, transparent 64%, #000 66%, #000 82%, transparent 84%);
  mask: radial-gradient(closest-side, transparent 64%, #000 66%, #000 82%, transparent 84%);
  animation: sol-orbit 26s linear infinite;
  pointer-events: none;
}
@keyframes sol-orbit { to { transform: translateY(-50%) rotate(360deg); } }
.sol-panel { animation: sol-rise .8s var(--ease-out) both, sol-bob 6.5s ease-in-out 1s infinite; }
@keyframes sol-rise { from { transform: translateY(18px) scale(.98); } to { transform: none; } }
@keyframes sol-bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
}


/* card top-accent removed — cleaner cards via border/shadow/hover */
.sol-cs-card.solved::before { display:none !important; }