/* ============================================================
   Skoolyn L.E.A.R.N — Pinterest-style UI
   White surfaces · big rounded cards · pills · filled icons
   ============================================================ */

:root {
  --pin-bg: #ffffff;
  --pin-soft: #f7f7f7;
  --pin-border: #efefef;
  --pin-text: #111111;
  --pin-muted: #767676;
  --pin-primary: #2563eb;
  --pin-dark: #111111;
  --pin-radius: 16px;
}
.dark {
  --pin-bg: #0d0d0d;
  --pin-soft: #1a1a1a;
  --pin-border: #262626;
  --pin-text: #efefef;
  --pin-muted: #a3a3a3;
  --pin-dark: #efefef;
}

body {
  background: var(--pin-bg);
  color: var(--pin-text);
  font-family: __Inter_f367f3, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Topbar (Pinterest style) ---------- */
.pin-topbar {
  background: var(--pin-bg);
  height: 80px;
}
.pin-search {
  background: var(--pin-soft);
  border-radius: 999px;
  transition: box-shadow .2s ease, background .2s ease;
}
.pin-search:focus-within {
  background: var(--pin-bg);
  box-shadow: 0 0 0 4px rgba(0,132,255,.25);
}
.pin-icon-btn {
  width: 48px; height: 48px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--pin-text); background: transparent;
  transition: background .15s ease, transform .1s ease;
  position: relative;
}
.pin-icon-btn:hover { background: rgba(0,0,0,.06); }
.dark .pin-icon-btn:hover { background: rgba(255,255,255,.1); }
.pin-icon-btn:active { transform: scale(.92); }

/* ---------- Nav chips (Pinterest filter pills) ---------- */
.pin-chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 16px; border-radius: 999px;
  font-size: 14px; font-weight: 600; white-space: nowrap;
  color: var(--pin-text); background: transparent;
  transition: background .15s ease, color .15s ease;
  flex-shrink: 0;
}
.pin-chip:hover { background: rgba(0,0,0,.06); }
.dark .pin-chip:hover { background: rgba(255,255,255,.1); }
.pin-chip.active { background: var(--pin-dark); color: var(--pin-bg); }
.pin-chip.active:hover { background: var(--pin-dark); }
.pin-chip svg { width: 17px; height: 17px; }
.pin-chiprow { scrollbar-width: none; }
.pin-chiprow::-webkit-scrollbar { display: none; }

/* ---------- Cards ---------- */
.pin-card {
  background: var(--pin-bg);
  border: 1px solid var(--pin-border);
  border-radius: var(--pin-radius);
  transition: box-shadow .25s ease, transform .25s ease;
}
.dark .pin-card { background: var(--pin-soft); }
.pin-card-soft {
  background: var(--pin-soft);
  border: none;
  border-radius: var(--pin-radius);
}
.pin-lift { transition: transform .25s ease, box-shadow .25s ease; }
.pin-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.12);
}

/* Pinterest hover overlay on media cards */
.pin-pin { position: relative; overflow: hidden; border-radius: var(--pin-radius); }
.pin-pin .pin-overlay {
  position: absolute; inset: 0; border-radius: var(--pin-radius);
  background: rgba(0,0,0,0);
  transition: background .2s ease;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 12px; opacity: 0;
}
.pin-pin:hover .pin-overlay { background: rgba(0,0,0,.35); opacity: 1; }
.pin-pin img { transition: transform .4s cubic-bezier(.2,.7,.3,1); width: 100%; height: 100%; object-fit: cover; }
.pin-pin:hover img { transform: scale(1.03); }

/* ---------- Buttons (Pinterest pills) ---------- */
.pin-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; font-size: 15px; font-weight: 700;
  padding: 0 20px; height: 48px; border: none; cursor: pointer;
  transition: background .15s ease, transform .1s ease, box-shadow .15s ease;
  white-space: nowrap;
}
.pin-btn:active { transform: scale(.96); }
.pin-btn-primary { background: var(--pin-primary); color: #fff; }
.pin-btn-primary:hover { background: #1d4fd7; }
.pin-btn-dark { background: var(--pin-dark); color: var(--pin-bg); }
.pin-btn-soft { background: rgba(0,0,0,.06); color: var(--pin-text); }
.dark .pin-btn-soft { background: rgba(255,255,255,.12); color: var(--pin-text); }
.pin-btn-soft:hover { background: rgba(0,0,0,.1); }
.dark .pin-btn-soft:hover { background: rgba(255,255,255,.18); }
.pin-btn-sm { height: 36px; padding: 0 14px; font-size: 13px; }
.pin-btn-lg { height: 56px; padding: 0 28px; font-size: 16px; }

/* ---------- Inputs ---------- */
.pin-input {
  width: 100%; border: none; background: var(--pin-soft);
  border-radius: 14px; padding: 0 16px; height: 48px;
  font-size: 15px; color: var(--pin-text);
  transition: box-shadow .15s ease, background .15s ease;
}
.pin-input:focus { outline: none; background: var(--pin-bg); box-shadow: 0 0 0 4px rgba(0,132,255,.25); }
textarea.pin-input { padding: 14px 16px; height: auto; resize: vertical; }
.pin-label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; color: var(--pin-text); }

/* ---------- Tables ---------- */
.pin-table th {
  font-size: 12px; font-weight: 700; color: var(--pin-muted);
  text-transform: uppercase; letter-spacing: .04em;
  padding: 12px 20px; text-align: left;
}
.pin-table td { padding: 16px 20px; font-size: 14px; }
.pin-table tbody tr { border-top: 1px solid var(--pin-border); transition: background .12s ease; }
.pin-table tbody tr:hover { background: var(--pin-soft); }

/* ---------- Badges ---------- */
.pin-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px;
}

/* ---------- Masonry ---------- */
.pin-masonry { column-gap: 16px; }
.pin-masonry > * { break-inside: avoid; margin-bottom: 16px; }
@media (min-width: 640px)  { .pin-masonry { column-count: 2; } }
@media (min-width: 1024px) { .pin-masonry { column-count: 3; } }
@media (min-width: 1280px) { .pin-masonry.cols-4 { column-count: 4; } }

/* ---------- Stat tiles ---------- */
.pin-stat-icon {
  width: 48px; height: 48px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Animations ---------- */
@keyframes pin-fade-up { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pin-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pin-pop { 0% { transform: scale(.88); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
@keyframes pin-float { 0%,100% { transform: translateY(0) rotate(var(--rot,0deg)); } 50% { transform: translateY(-14px) rotate(var(--rot,0deg)); } }
.pin-fade-up { animation: pin-fade-up .55s cubic-bezier(.2,.7,.3,1) both; }
.pin-fade-in { animation: pin-fade-in .4s ease both; }
.pin-pop { animation: pin-pop .3s cubic-bezier(.2,.7,.3,1.35) both; }
.pin-d1 { animation-delay: .05s; } .pin-d2 { animation-delay: .1s; }
.pin-d3 { animation-delay: .15s; } .pin-d4 { animation-delay: .2s; }
.pin-d5 { animation-delay: .25s; }
.pin-float { animation: pin-float 6s ease-in-out infinite; }

.sk-toast { animation: pin-pop .28s cubic-bezier(.2,.7,.3,1.3) both; border-radius: 14px; }

/* Scrollbars */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: #d9d9d9; border-radius: 9px; border: 2px solid var(--pin-bg); }
.dark ::-webkit-scrollbar-thumb { background: #3a3a3a; border-color: var(--pin-bg); }
::-webkit-scrollbar-track { background: transparent; }

/* Line clamp */
.line-clamp-1 { display:-webkit-box; -webkit-line-clamp:1; -webkit-box-orient:vertical; overflow:hidden; }
.line-clamp-2 { display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.line-clamp-3 { display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }

/* Hero mesh for landing */
.pin-hero {
  background:
    radial-gradient(900px 480px at 88% -12%, rgba(37,99,235,.14), transparent 60%),
    radial-gradient(760px 420px at -8% 24%, rgba(255,138,0,.10), transparent 55%),
    radial-gradient(700px 420px at 55% 115%, rgba(37,99,235,.08), transparent 60%),
    var(--pin-bg);
}
.dark .pin-hero {
  background:
    radial-gradient(900px 480px at 88% -12%, rgba(96,165,250,.14), transparent 60%),
    radial-gradient(760px 420px at -8% 24%, rgba(255,138,0,.07), transparent 55%),
    #0d0d0d;
}

/* Avatar stack */
.pin-avatar-ring { border: 2.5px solid var(--pin-bg); }

/* Popover menus */
.pin-menu {
  background: var(--pin-bg); border-radius: 16px;
  box-shadow: 0 8px 36px rgba(0,0,0,.18);
  border: 1px solid var(--pin-border);
  animation: pin-pop .18s cubic-bezier(.2,.7,.3,1.2) both;
}
.pin-menu-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: 10px; font-size: 14px; font-weight: 600;
  color: var(--pin-text); transition: background .12s ease; width: 100%; text-align: left;
}
.pin-menu-item:hover { background: var(--pin-soft); }