/* cf-filter.css — CF Problem Filter page styles */

/* ─── Page Layout ───────────────────────────────────────── */
.cfp-layout {
  display: flex;
  gap: 1.5rem;
  padding: 2rem 0 4rem;
  align-items: flex-start;
}

/* ─── Sidebar ───────────────────────────────────────────── */
.cfp-sidebar {
  width: 268px;
  flex-shrink: 0;
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.filter-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 1.1rem;
}
.filter-card h3 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin: 0 0 0.75rem;
}

/* Division filter */
.div-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
}
.div-btn {
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-light);
  color: var(--color-text-muted);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.div-btn[data-div="div1"]         { --dclr: #ef4444; }
.div-btn[data-div="div2"]         { --dclr: #eab308; }
.div-btn[data-div="div3"]         { --dclr: #22c55e; }
.div-btn[data-div="div4"]         { --dclr: #38bdf8; }
.div-btn[data-div="div12"]        { --dclr: #f97316; }
.div-btn[data-div="educational"]  { --dclr: #a855f7; }
.div-btn[data-div="global"]       { --dclr: #ec4899; }
.div-btn[data-div="other"]        { --dclr: #64748b; }
.div-btn.active {
  background: color-mix(in srgb, var(--dclr) 15%, transparent);
  border-color: color-mix(in srgb, var(--dclr) 40%, transparent);
  color: var(--dclr);
}

/* Index filter */
.index-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.idx-btn {
  width: 28px; height: 28px;
  border-radius: 5px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-light);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex; align-items: center; justify-content: center;
}
.idx-btn.active {
  background: rgba(6,182,212,0.2);
  border-color: #06b6d4;
  color: #06b6d4;
}

/* Rating range */
.rating-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.rating-select {
  flex: 1;
  padding: 0.4rem 0.5rem;
  background: var(--glass-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.82rem;
}
.rating-row span { color: var(--color-text-faint); font-size: 0.8rem; }

/* Sort */
.sort-select {
  width: 100%;
  padding: 0.45rem 0.6rem;
  background: var(--glass-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.82rem;
}

/* Filter actions */
.filter-actions { display: flex; gap: 0.5rem; }
.btn-reset {
  flex: 1;
  padding: 0.45rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--glass-bg-light);
  color: var(--color-text-muted);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-reset:hover { background: var(--color-border); }

/* Solved toggle */
.solved-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ─── Main content ──────────────────────────────────────── */
.cfp-main { flex: 1; min-width: 0; }

/* ─── Search bar ────────────────────────────────────────── */
.cf-search-wrap {
  position: relative;
  margin-bottom: 1rem;
}
.cf-search-wrap svg {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-faint);
  pointer-events: none;
}
#cf-search {
  width: 100%;
  padding: 0.65rem 1rem 0.65rem 2.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 0.9rem;
  transition: border-color 0.2s;
}
#cf-search:focus {
  outline: none;
  border-color: rgba(6,182,212,0.5);
}
.search-shortcut {
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.72rem;
  color: var(--color-text-faint);
  background: var(--glass-border);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
}

/* ─── KPI Strip ─────────────────────────────────────────── */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.kpi-card {
  background: var(--color-surface-2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
}
.kpi-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.kpi-label { font-size: 0.72rem; color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.06em; }
.kpi-card:nth-child(1) .kpi-val { color: #06b6d4; }
.kpi-card:nth-child(2) .kpi-val { color: #8b5cf6; }
.kpi-card:nth-child(3) .kpi-val { color: #f59e0b; }
.kpi-card:nth-child(4) .kpi-val { color: #22c55e; }
.kpi-filtered { font-size: 0.8rem; color: var(--color-text-faint); margin-bottom: 0.75rem; }

/* ─── Handle section ────────────────────────────────────── */
.handle-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
#handle-input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.85rem;
}
#handle-input:focus { outline: none; border-color: rgba(6,182,212,0.5); }
#handle-btn {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: none;
  background: linear-gradient(135deg, #06b6d4, #8b5cf6);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}
#handle-error { font-size: 0.8rem; color: #f87171; margin-bottom: 0.5rem; }

/* User card */
#user-card {
  display: none;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  margin-bottom: 1rem;
  overflow: hidden;
}
.user-card-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
}
.user-avatar {
  width: 48px; height: 48px;
  border-radius: 8px;
  object-fit: cover;
  border: 2px solid rgba(6,182,212,0.4);
}
.user-handle { font-weight: 700; font-size: 1rem; }
.user-rank   { font-size: 0.8rem; text-transform: capitalize; }
.user-stats  { display: flex; gap: 1rem; font-size: 0.78rem; color: var(--color-text-faint); margin-top: 0.25rem; }
.user-card-close {
  margin-left: auto;
  background: none; border: none;
  color: var(--color-text-faint); cursor: pointer; font-size: 1rem;
}
.user-card-loading { padding: 1rem; color: var(--color-text-faint); font-size: 0.9rem; }

/* ─── Table ─────────────────────────────────────────────── */
.cf-table-wrap {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  background: var(--color-surface);
}
.cf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.cf-table thead th {
  padding: 0.8rem 0.9rem;
  text-align: left;
  color: var(--color-text-faint);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--color-border-subtle);
  white-space: nowrap;
  background: var(--glass-bg);
  cursor: pointer;
  user-select: none;
}
.cf-table th:hover { color: var(--color-text); }
.cf-table td { padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--glass-bg-light); vertical-align: middle; }
.cf-table tr:hover td { background: rgba(255,255,255,0.025); }

/* Solved row */
.row-solved { border-left: 3px solid #22c55e !important; }
.row-solved .problem-link { color: #22c55e !important; }

.problem-link { color: var(--color-text); text-decoration: none; font-weight: 500; }
.problem-link:hover { color: #06b6d4; text-decoration: underline; }
.problem-tags { display: flex; flex-wrap: wrap; gap: 0.25rem; margin-top: 0.3rem; }
.tag-chip { font-size: 0.7rem; padding: 0.1rem 0.4rem; border-radius: 3px; background: var(--color-border-subtle); color: var(--color-text-faint); }
.contest-name { font-size: 0.8rem; color: var(--color-text-faint); }
.td-num { font-family: 'JetBrains Mono', monospace; color: var(--color-text-faint); font-size: 0.78rem; }
.td-solves { font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; color: var(--color-text-faint); }

/* Rating badge — new rc- classes used by table.js */
.rc {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.82rem;
}
.rc-none      { color: #64748b; }
.rc-gray      { color: #94a3b8; }
.rc-green     { color: #10b981; }
.rc-cyan      { color: #06b6d4; }
.rc-blue      { color: #3b82f6; }
.rc-violet    { color: #8b5cf6; }
.rc-amber     { color: #f59e0b; }
.rc-orange    { color: #f97316; }
.rc-red       { color: #ef4444; }
.rc-red-bold  { color: #dc2626; font-weight: 900; }
/* Legacy aliases kept for backward compat */
.rating-badge  { font-family: 'JetBrains Mono', monospace; font-weight: 700; font-size: 0.82rem; }
.rating-unrated{ color: #64748b; }
.rating-800    { color: #94a3b8; }
.rating-1200   { color: #10b981; }
.rating-1400   { color: #06b6d4; }
.rating-1600   { color: #3b82f6; }
.rating-1900   { color: #8b5cf6; }
.rating-2100   { color: #f59e0b; }
.rating-2400   { color: #f97316; }
.rating-2600   { color: #ef4444; }
.rating-3000   { color: #dc2626; font-weight: 900; }

.solve-btn {
  padding: 0.25rem 0.65rem;
  border-radius: 5px;
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.3);
  color: #06b6d4;
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  transition: all 0.2s;
}
.solve-btn:hover { background: rgba(6,182,212,0.2); }
.table-empty { text-align: center; padding: 3rem; color: var(--color-text-faint); }

/* ─── Pagination ────────────────────────────────────────── */
#cf-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.3rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
/* Support both .pg-btn (new) and .page-btn (legacy) */
.pg-btn, .page-btn {
  min-width: 36px; height: 36px;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-light);
  color: var(--color-text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0 0.5rem;
}
.pg-btn:hover:not([disabled]), .page-btn:hover:not([disabled]) { background: rgba(6,182,212,0.15); border-color: rgba(6,182,212,0.3); color: #06b6d4; }
.pg-btn.active, .page-btn.active { background: rgba(6,182,212,0.2); border-color: #06b6d4; color: #06b6d4; }
.pg-btn[disabled], .page-btn[disabled] { opacity: 0.3; cursor: not-allowed; }
.pg-ellipsis, .page-ellipsis { color: var(--color-text-faint); padding: 0 0.2rem; }

/* ─── Skeleton ──────────────────────────────────────────── */
.skeleton-text, .skel-text {
  display: inline-block;
  width: 80%;
  height: 14px;
  background: linear-gradient(90deg, var(--color-border-subtle) 25%, rgba(255,255,255,0.12) 50%, var(--color-border-subtle) 75%);
  background-size: 200% 100%;
  border-radius: 3px;
  animation: shimmer 1.4s infinite;
}

/* Tag pills (table.js uses .tag-pill) */
.tag-pill {
  font-size: 0.68rem;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  background: var(--color-border-subtle);
  color: var(--color-text-faint);
  white-space: nowrap;
}
.tag-row { display: flex; flex-wrap: wrap; gap: 0.2rem; margin-top: 0.25rem; }

/* Table cell aliases (new table.js names) */
.td-n    { font-family: 'JetBrains Mono', monospace; color: var(--color-text-faint); font-size: 0.78rem; width: 40px; }
.td-prob { max-width: 240px; }
.td-cont { max-width: 180px; font-size: 0.78rem; color: var(--color-text-faint); }
.td-act  { white-space: nowrap; }
.prob-link { color: var(--color-text); text-decoration: none; font-weight: 500; }
.prob-link:hover { color: #06b6d4; text-decoration: underline; }
.tbl-empty { text-align: center; padding: 3rem; color: var(--color-text-faint); }

/* Status pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-top: 0.5rem;
}
.status-pill.loading { background: var(--color-border-subtle); color: var(--color-text-faint); }
.status-pill.ready   { background: rgba(34,197,94,0.12); color: #22c55e; }
.status-pill.error   { background: rgba(239,68,68,0.12); color: #f87171; }
.sp-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.status-pill.loading .sp-dot { animation: blink 1.2s ease-in-out infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.spinner {
  display: inline-block;
  width: 12px; height: 12px;
  border: 2px solid rgba(6,182,212,0.3);
  border-top-color: #06b6d4;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 900px) {
  .cfp-layout { flex-direction: column; }
  .cfp-sidebar { width: 100%; position: static; }
  .kpi-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .kpi-strip { grid-template-columns: 1fr 1fr; }
  .cf-table { min-width: 560px; }
}