/* PCFinder v2 — clean dark UI */
:root {
  --bg: #0b0f14;
  --bg-soft: #10161d;
  --card: #131a22;
  --card-hover: #171f29;
  --border: #223040;
  --border-soft: #1a2530;
  --text: #e6edf3;
  --text-dim: #8b98a9;
  --text-faint: #5c6b7d;
  --accent: #22d3ee;
  --accent-2: #8b5cf6;
  --good: #34d399;
  --warn: #fbbf24;
  --bad: #fb7185;
  --grad: linear-gradient(90deg, #22d3ee, #8b5cf6);
  --radius: 14px;
  --radius-sm: 9px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

:where(a, button, input, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 20px; }

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(600px 300px at 15% -5%, rgba(34, 211, 238, 0.09), transparent 70%),
    radial-gradient(700px 350px at 85% 0%, rgba(139, 92, 246, 0.10), transparent 70%);
  z-index: 0;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 20, 0.78);
  border-bottom: 1px solid var(--border-soft);
}

.site-header .wrap { display: flex; align-items: center; gap: 14px; padding-top: 14px; padding-bottom: 14px; }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.tagline { color: var(--text-faint); font-size: 0.85rem; }
@media (max-width: 640px) { .tagline { display: none; } }

/* ---------- hero ---------- */

main { position: relative; z-index: 1; padding-bottom: 70px; }

.hero { text-align: center; padding: 46px 0 30px; }

.hero h1 { font-size: clamp(1.9rem, 4.6vw, 3rem); line-height: 1.14; letter-spacing: -0.03em; font-weight: 800; }

.hero .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.hero p { max-width: 680px; margin: 16px auto 0; color: var(--text-dim); font-size: 1.02rem; }

/* ---------- panels ---------- */

.panel { background: var(--card); border: 1px solid var(--border-soft); border-radius: var(--radius); padding: 26px; }

.input-panel { max-width: 780px; margin: 0 auto; }

.field + .field { margin-top: 20px; }

.field-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.seg { display: flex; gap: 8px; flex-wrap: wrap; }

.seg-btn {
  flex: 1;
  min-width: 150px;
  padding: 12px 10px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}

.seg-btn:hover { border-color: var(--text-faint); color: var(--text); }

.seg-btn.active {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.14), rgba(139, 92, 246, 0.14));
  border-color: var(--accent);
  color: var(--text);
}

.mode-hint { margin-top: 8px; color: var(--text-faint); font-size: 0.82rem; }

.budget-row { display: flex; gap: 18px; align-items: center; }
@media (max-width: 640px) { .budget-row { flex-direction: column; align-items: stretch; } }

.money-wrap {
  display: inline-flex;
  align-items: center;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
  min-width: 170px;
}

.money-wrap:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15); }

.currency { padding: 0 4px 0 14px; color: var(--text-dim); font-size: 1.15rem; }

#budget {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 1.45rem;
  font-weight: 700;
  padding: 10px 14px 10px 2px;
  font-family: inherit;
}
#budget::-webkit-outer-spin-button, #budget::-webkit-inner-spin-button { -webkit-appearance: none; }
#budget { -moz-appearance: textfield; appearance: textfield; }

.slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 8px;
  border-radius: 999px;
  /* progress fill driven by --fill (0–100%) set from JS */
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) var(--fill, 15%), var(--bg-soft) var(--fill, 15%));
  outline: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 4px solid var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  cursor: grab;
}

.slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 4px solid var(--accent);
  cursor: grab;
}

.presets { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

.chip {
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}

.chip:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- toggles ---------- */

.toggle-row { margin-top: 22px; display: grid; gap: 12px; }

.switch-wrap { display: flex; align-items: flex-start; gap: 12px; cursor: pointer; }

.switch-wrap input { position: absolute; opacity: 0; }

.switch {
  flex: none;
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: var(--border);
  position: relative;
  transition: background 0.18s;
  margin-top: 1px;
}

.switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.18s;
}

.switch-wrap input:checked + .switch { background: var(--grad); }
.switch-wrap input:checked + .switch::after { transform: translateX(18px); }
.switch-wrap input:focus-visible + .switch { outline: 2px solid var(--accent); outline-offset: 2px; }

.switch-text { font-size: 0.9rem; color: var(--text-dim); }
.switch-text strong { color: var(--text); }
.switch-text em { color: var(--text-faint); font-style: normal; font-size: 0.82rem; }

.btn-primary {
  display: block;
  width: 100%;
  margin-top: 22px;
  padding: 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--grad);
  color: #071018;
  font-size: 1.02rem;
  font-weight: 700;
  cursor: pointer;
  transition: filter 0.15s, transform 0.05s;
  font-family: inherit;
}

.btn-primary:hover { filter: brightness(1.1); }
.btn-primary:active { transform: scale(0.995); }

.microcopy { margin-top: 12px; text-align: center; color: var(--text-faint); font-size: 0.8rem; }

/* ---------- error ---------- */

.error-panel {
  max-width: 780px;
  margin: 26px auto 0;
  border-color: rgba(251, 113, 133, 0.35);
  background: rgba(251, 113, 133, 0.06);
  color: #fda4af;
  text-align: center;
}

/* ---------- summary ---------- */

#results { margin-top: 26px; }

.summary-main {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.4fr 1.6fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 860px) { .summary-main { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .summary-main { grid-template-columns: 1fr; } }

.stat-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-faint);
  margin-bottom: 4px;
}

.stat-value { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em; }
.stat-sub { display: block; font-size: 0.82rem; color: var(--text-dim); margin-top: 4px; }
#leftover { color: var(--good); }

.perf-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  overflow: hidden;
  margin: 6px 0 4px;
}

.perf-fill { height: 100%; width: 0; border-radius: 999px; background: var(--grad); transition: width 0.5s ease; }

.perf-tier { font-size: 0.85rem; color: var(--text-dim); font-weight: 600; }

/* fps / balance boxes */

.fps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 14px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border-soft);
}
@media (max-width: 720px) { .fps-grid { grid-template-columns: 1fr; } }

.fps-box { background: var(--bg-soft); border: 1px solid var(--border-soft); border-radius: var(--radius-sm); padding: 12px 14px; }

.fps-caption { display: block; font-size: 0.72rem; color: var(--text-faint); }

.fps-val { display: block; font-size: 1.12rem; font-weight: 800; margin-top: 4px; letter-spacing: -0.01em; }

.bn-bar { height: 8px; border-radius: 999px; background: var(--border-soft); overflow: hidden; margin: 8px 0 6px; }
.bn-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--good), var(--accent)); border-radius: 999px; transition: width 0.5s; }
.bn-label { display: block; font-size: 0.86rem; font-weight: 700; }
.bn-detail { display: block; font-size: 0.76rem; color: var(--text-faint); }

.summary-note { margin-top: 18px; color: var(--text-dim); font-size: 0.92rem; border-top: 1px solid var(--border-soft); padding-top: 16px; }

/* ---------- part cards ---------- */

.results-title { margin: 34px 0 16px; font-size: 1.25rem; letter-spacing: -0.01em; }
.results-sub { color: var(--text-faint); font-weight: 400; font-size: 0.9rem; }

.parts-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(430px, 1fr)); gap: 14px; }
@media (max-width: 960px) { .parts-grid { grid-template-columns: 1fr; } }

.part-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.15s, background 0.15s;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.part-card:hover { border-color: var(--border); background: var(--card-hover); }

.part-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap; }

.part-cat {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
}

.price-line { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

.part-price { font-size: 1.25rem; font-weight: 800; }

.price-used { font-size: 0.9rem; color: var(--good); font-weight: 700; }
.price-used em { font-style: normal; font-weight: 400; font-size: 0.72rem; color: var(--text-faint); }

.badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: -2px; }

.best-badge {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--good);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: 999px;
  padding: 3px 10px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.best-badge a { color: inherit; text-decoration: none; }
.best-badge a:hover { text-decoration: underline; }

.used-est-badge {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-dim);
  border: 1px dashed var(--border);
  border-radius: 999px;
  padding: 3px 10px;
}

.part-name { font-size: 1.05rem; font-weight: 700; letter-spacing: -0.01em; margin-top: 2px; }

.part-why { color: var(--text-dim); font-size: 0.84rem; font-style: italic; }

.specs { width: 100%; border-collapse: collapse; font-size: 0.8rem; margin-top: 2px; }

.specs td { padding: 4px 8px 4px 0; border-bottom: 1px dashed var(--border-soft); vertical-align: top; }
.specs td:first-child { color: var(--text-faint); width: 42%; white-space: nowrap; }
.specs tr:last-child td { border-bottom: none; }

.store-links { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 8px; }

.store-btn {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  text-decoration: none;
  transition: all 0.15s;
}

.store-btn:hover { border-color: var(--text-faint); color: var(--text); }

.store-btn.best {
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.16), rgba(139, 92, 246, 0.16));
  border-color: var(--accent);
  color: var(--text);
}

.store-btn.used-link {
  border-color: rgba(52, 211, 153, 0.35);
  color: var(--good);
}

.store-btn.used-link:hover { border-color: var(--good); color: var(--good); }

/* live slot */

.live-slot { margin-top: 4px; }

.live-best {
  font-size: 0.86rem;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
}

.live-best a { color: var(--text); text-decoration: none; }
.live-best a:hover { text-decoration: underline; }
.live-best em { color: var(--text-faint); font-style: normal; font-size: 0.78rem; margin-left: 4px; }

.live-best.good { border-left-color: var(--good); }
.live-best.warn { border-left-color: var(--warn); }

.live-tag {
  display: inline-block;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #071018;
  background: var(--grad);
  border-radius: 4px;
  padding: 1px 6px;
  margin-right: 6px;
  vertical-align: 1px;
}

.live-fail, .used-none { font-size: 0.8rem; color: var(--text-faint); margin: 4px 0; }
.live-fail a, .used-none a { color: var(--accent); }

.live-loading { font-size: 0.82rem; color: var(--text-dim); display: flex; align-items: center; gap: 8px; }

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.check-live {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px dashed var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}

.check-live:hover { border-color: var(--accent); color: var(--accent); }

/* used panel */

.used-panel { margin-top: 6px; border: 1px solid rgba(52, 211, 153, 0.25); border-radius: var(--radius-sm); background: rgba(52, 211, 153, 0.04); }

.used-panel summary {
  cursor: pointer;
  padding: 10px 14px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--good);
  list-style: none;
}

.used-panel summary::-webkit-details-marker { display: none; }
.used-panel summary::before { content: "▸ "; transition: transform 0.15s; display: inline-block; }
.used-panel[open] summary::before { transform: rotate(90deg); }

.used-body { padding: 4px 14px 14px; display: grid; gap: 10px; }

.used-item { border: 1px solid var(--border-soft); border-radius: var(--radius-sm); padding: 12px; background: var(--bg-soft); }

.used-item-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }

.cond { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; border-radius: 4px; padding: 2px 7px; }
.cond.good { color: var(--good); background: rgba(52, 211, 153, 0.12); }
.cond.ok { color: var(--warn); background: rgba(251, 191, 36, 0.12); }

.chip-top { font-size: 0.68rem; font-weight: 700; color: var(--accent-2); border: 1px solid rgba(139, 92, 246, 0.4); border-radius: 4px; padding: 1px 6px; }

.used-price { margin-left: auto; font-weight: 800; font-size: 0.95rem; }

.used-title { display: block; color: var(--text); font-size: 0.88rem; font-weight: 600; text-decoration: none; margin-bottom: 6px; }
.used-title:hover { color: var(--accent); }

.cond-desc { font-size: 0.78rem; color: var(--text-dim); margin-bottom: 8px; }

.used-meta { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 0.76rem; color: var(--text-dim); margin-bottom: 6px; }
.used-meta strong { color: var(--text); }

.used-specs { font-size: 0.74rem; }

.used-check { font-size: 0.76rem; color: var(--text-faint); border-top: 1px dashed var(--border-soft); padding-top: 10px; }

/* alternatives */

.alts { margin-top: 4px; }

.alts summary { cursor: pointer; font-size: 0.8rem; color: var(--text-faint); font-weight: 600; list-style: none; }
.alts summary::-webkit-details-marker { display: none; }
.alts summary::before { content: "+ "; color: var(--accent); }
.alts[open] summary::before { content: "− "; }

.alt-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-top: 8px;
  padding: 9px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.15s;
  text-align: left;
  font-family: inherit;
}

.alt-row:hover { border-color: var(--accent); }

.alt-name { font-weight: 600; }
.alt-delta { color: var(--text-dim); white-space: nowrap; font-size: 0.76rem; }
.alt-delta.good { color: var(--good); }

/* ---------- upgrades panel ---------- */

.upgrades { margin-top: 22px; }
.upgrades h2 { font-size: 1.05rem; margin-bottom: 12px; }

.upgrade-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--border-soft);
  font-size: 0.88rem;
  flex-wrap: wrap;
}
.upgrade-row:last-child { border-bottom: none; }

.up-cat { color: var(--accent); font-weight: 700; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.06em; min-width: 110px; }
.up-name { flex: 1; font-weight: 600; }
.up-delta { color: var(--text-dim); }
.up-over { color: var(--warn); font-size: 0.74rem; border: 1px solid rgba(251, 191, 36, 0.3); padding: 1px 7px; border-radius: 999px; }
.upgrade-row.over { opacity: 0.65; }

/* ---------- actions ---------- */

.actions { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }

.btn-ghost {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
  font-family: inherit;
}

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- how it works ---------- */

.how { margin-top: 40px; }

.how h2 { font-size: 1.15rem; margin-bottom: 18px; letter-spacing: -0.01em; }

.how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 720px) { .how-grid { grid-template-columns: 1fr; } }

.how-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--grad);
  color: #071018;
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.how h3 { font-size: 0.98rem; margin-bottom: 5px; }
.how p { color: var(--text-dim); font-size: 0.87rem; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 26px 0 34px;
  color: var(--text-faint);
  font-size: 0.8rem;
  text-align: center;
}