/* =========================================================
   SUPERFAST PC BUILDER — Claude Design refresh
   Paleta: pink / purple / orange · Dark-first
   Tipografia: Barlow Condensed (display) + Exo 2 + Rajdhani (UI)
   ========================================================= */

/* ===== TOKENS ===== */
:root {
  /* BRAND CORE */
  --sf-pink:    #FF0099;
  --sf-magenta: #CC0077;
  --sf-purple:  #7B2FBE;
  --sf-violet:  #5A1A9E;
  --sf-orange:  #FF7700;
  --sf-amber:   #FF9500;

  --accent:        var(--sf-pink);
  --accent-soft:   color-mix(in oklab, var(--accent) 15%, transparent);
  --accent-glow:   color-mix(in oklab, var(--accent) 55%, transparent);
  --accent2:       var(--sf-purple);

  /* NEUTRALS — DARK */
  --bg-0:   #000000;
  --bg-1:   #070709;
  --bg-2:   #0A0A0C;
  --bg-3:   #111113;
  --bg-4:   #17171A;
  --bg-5:   #1E1E22;
  --line-1: rgba(255,255,255,0.06);
  --line-2: rgba(255,255,255,0.10);
  --line-3: rgba(255,255,255,0.16);

  --fg-0:   #FFFFFF;
  --fg-1:   #EDEDEF;
  --fg-2:   #A8A8AE;
  --fg-3:   #72727A;
  --fg-4:   #48484F;
  --fg-5:   #2B2B30;

  /* SEMANTIC */
  --ok:   #22E09A;
  --warn: #FFB020;
  --err:  #FF3B5C;
  --info: #5CC8FF;

  /* GRADIENTS */
  --grad-brand:   linear-gradient(135deg, #FF0099 0%, #7B2FBE 60%, #FF7700 100%);
  --grad-pv:      linear-gradient(135deg, #FF0099 0%, #7B2FBE 100%);
  --grad-po:      linear-gradient(135deg, #7B2FBE 0%, #FF7700 100%);

  /* TYPOGRAPHY */
  --font-display: 'Barlow Condensed', 'Helvetica Neue', sans-serif;
  --font-tagline: 'Exo 2', 'Helvetica Neue', sans-serif;
  --font-ui:      'Rajdhani', 'Helvetica Neue', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  /* RADIUS */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-2xl: 28px;
  --r-full: 999px;

  /* SHADOWS */
  --sh-1: 0 1px 2px rgba(0,0,0,0.4);
  --sh-2: 0 4px 12px rgba(0,0,0,0.5);
  --sh-3: 0 10px 28px rgba(0,0,0,0.55);
  --sh-4: 0 20px 60px rgba(0,0,0,0.6);
  --glow-pink:   0 0 40px rgba(255,0,153,0.35), 0 0 2px rgba(255,0,153,0.6);
  --glow-purple: 0 0 40px rgba(123,47,190,0.45), 0 0 2px rgba(123,47,190,0.6);
  --glow-orange: 0 0 40px rgba(255,119,0,0.35), 0 0 2px rgba(255,119,0,0.6);
  --glow-accent: 0 0 36px var(--accent-glow), 0 0 2px var(--accent);

  /* MOTION */
  --ease-out:    cubic-bezier(.2,.7,.2,1);
  --ease-inout:  cubic-bezier(.65,0,.35,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);

  /* LEGACY ALIASES (app.js usa essas variáveis) */
  --bg:     var(--bg-1);
  --bg2:    var(--bg-2);
  --bg3:    var(--bg-4);
  --border: var(--line-2);
  --text:   var(--fg-1);
  --text2:  var(--fg-2);
  --text3:  var(--fg-3);
  --card-bg: rgba(30,30,34,0.55);
  --card-hover: color-mix(in oklab, var(--accent) 10%, transparent);
  --shadow: var(--sh-3);
  --radius: var(--r-lg);
  --green:  var(--ok);
  --yellow: var(--warn);
  --red:    var(--err);
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { overflow-x: hidden; }
body {
  background: var(--bg-0);
  color: var(--fg-1);
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 15px;
  letter-spacing: 0.01em;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--accent); text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

/* Tabular nums pra preços */
.sidebar-total, .build-item-price, .product-price, .final-total,
.budget-display, .build-price-badge, .mobile-total {
  font-variant-numeric: tabular-nums;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-5); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--fg-4); }

/* ===== AURORA BACKGROUND (aplicado só em algumas telas) ===== */
.aurora {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.aurora::before, .aurora::after {
  content: "";
  position: absolute;
  width: 60vw; height: 60vw;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.32;
  animation: aurora-drift 18s var(--ease-inout) infinite alternate;
}
.aurora::before {
  background: radial-gradient(circle, var(--sf-pink) 0%, transparent 60%);
  top: -20%; left: -10%;
}
.aurora::after {
  background: radial-gradient(circle, var(--sf-purple) 0%, transparent 60%);
  bottom: -20%; right: -10%;
  animation-delay: -9s;
}
@keyframes aurora-drift {
  0%   { transform: translate(-5%, 0) scale(1); }
  100% { transform: translate(5%, 8%) scale(1.15); }
}

/* ===== HEADER ===== */
.header {
  position: sticky; top: 0; z-index: 100;
  height: 64px; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(180deg, rgba(10,10,12,0.85) 0%, rgba(10,10,12,0.6) 100%);
  border-bottom: 0.5px solid var(--line-2);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--fg-0);
}
.logo svg { width: 28px; height: 28px; }
.logo > span:first-of-type {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.logo span span {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.header-right { display: flex; align-items: center; gap: 10px; }

/* ===== BOTÕES BASE ===== */
.btn-sm {
  padding: 7px 14px;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  border: 0.5px solid transparent;
  transition: transform .18s var(--ease-out), box-shadow .2s var(--ease-out), background .2s var(--ease-out), border-color .2s var(--ease-out);
}
.btn-sm:hover { transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--fg-1);
  border-color: var(--line-3);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary {
  background: var(--grad-pv);
  color: #fff;
  box-shadow: var(--glow-accent), var(--sh-2);
}
.btn-primary:hover { box-shadow: var(--glow-accent), var(--sh-3); filter: brightness(1.08); }

/* ===== LAYOUT ===== */
.app {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 380px;
  min-height: calc(100vh - 64px);
}
@media (max-width: 900px) { .app { grid-template-columns: 1fr; } }

.main {
  padding: 32px 40px;
  overflow-y: auto;
  max-height: calc(100vh - 64px);
}

/* ===== STEP HEADER ===== */
.step-header { margin-bottom: 28px; }
.step-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; margin-bottom: 14px;
  border-radius: var(--r-full);
  background: rgba(255,0,153,0.12);
  color: var(--accent);
  border: 0.5px solid rgba(255,0,153,0.3);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}
.step-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 46px;
  letter-spacing: -0.02em;
  line-height: 1.02;
  color: var(--fg-0);
  margin-bottom: 8px;
  padding-right: 0.08em;
}
.step-desc {
  font-family: var(--font-tagline);
  font-style: italic;
  font-weight: 200;
  font-size: 17px;
  color: var(--fg-2);
  line-height: 1.4;
  max-width: 720px;
}

/* ===== SECTION LABEL ===== */
.section-label {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin: 20px 0 12px;
}

/* ===== STEPS NAV ===== */
.steps-nav {
  display: flex; align-items: center; gap: 4px;
  margin-bottom: 28px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}
.step-dot {
  display: flex; align-items: center; gap: 8px;
  cursor: pointer;
  white-space: nowrap;
  padding: 4px 6px;
  border-radius: var(--r-full);
  transition: background .2s var(--ease-out);
}
.step-dot:hover { background: var(--line-1); }
.step-dot-circle {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 0.5px solid var(--line-3);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-2);
  transition: all .2s var(--ease-out);
  flex-shrink: 0;
}
.step-dot.active .step-dot-circle {
  background: var(--grad-pv);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--glow-accent);
}
.step-dot.done .step-dot-circle {
  background: rgba(34,224,154,0.15);
  border-color: rgba(34,224,154,0.45);
  color: var(--ok);
}
.step-dot-label {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.step-dot.active .step-dot-label { color: var(--fg-0); font-weight: 600; }
.step-dot.done .step-dot-label { color: var(--ok); }
.step-connector {
  width: 20px; height: 1px;
  background: var(--line-2);
  flex-shrink: 0;
}
.step-connector.done { background: rgba(34,224,154,0.45); }

/* ===== PROFILE STEP ===== */
.profiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}
.profile-card {
  position: relative;
  padding: 28px 20px 22px;
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 0.5px solid var(--line-2);
  cursor: pointer;
  transition: border-color .25s var(--ease-out), transform .25s var(--ease-out), box-shadow .25s var(--ease-out);
  text-align: center;
  overflow: hidden;
}
.profile-card::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--grad-brand);
  opacity: 0;
  transition: opacity .25s var(--ease-out);
  z-index: 0;
}
.profile-card > * { position: relative; z-index: 1; }
.profile-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,0,153,0.35);
  box-shadow: var(--sh-2), var(--glow-accent);
}
.profile-card.selected {
  border-color: transparent;
  background: linear-gradient(180deg, rgba(255,0,153,0.12), rgba(123,47,190,0.08));
  box-shadow: var(--glow-accent);
}
.profile-card.selected::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad-brand);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
.profile-icon { font-size: 36px; margin-bottom: 12px; filter: drop-shadow(0 4px 12px rgba(255,0,153,0.3)); }
.profile-name {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  color: var(--fg-0);
}
.profile-desc {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 12px;
  line-height: 1.4;
  color: var(--fg-2);
}

/* ===== PLATFORM ===== */
.platforms-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}
.platform-card {
  position: relative;
  display: flex; align-items: center; gap: 16px;
  padding: 20px;
  border-radius: var(--r-lg);
  background: var(--bg-2);
  border: 0.5px solid var(--line-2);
  cursor: pointer;
  transition: border-color .25s var(--ease-out), transform .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.platform-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,0,153,0.35);
  box-shadow: var(--sh-2);
}
.platform-card.selected {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(255,0,153,0.06), rgba(123,47,190,0.04));
  box-shadow: var(--glow-accent);
}
.platform-logo {
  width: 56px; height: 56px;
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 28px;
  color: #fff;
  flex-shrink: 0;
}
.intel-logo { background: linear-gradient(135deg, #0068b5, #00aeef); box-shadow: 0 4px 14px rgba(0,104,181,0.4); }
.amd-logo   { background: linear-gradient(135deg, #e00000, #ff6b35); box-shadow: 0 4px 14px rgba(224,0,0,0.4); }
.platform-info h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 20px;
  color: var(--fg-0);
  letter-spacing: -0.01em;
}
.platform-info p {
  font-size: 12px; color: var(--fg-2); margin-top: 3px;
  font-family: var(--font-ui); font-weight: 400;
}
.platform-check {
  margin-left: auto; width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--grad-pv);
  color: #fff;
  font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--glow-accent);
  flex-shrink: 0;
}

/* ===== BUDGET ===== */
.budget-section { margin-bottom: 32px; }
.budget-section label {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-3);
  display: block; margin-bottom: 8px;
}
.budget-display {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 42px;
  letter-spacing: -0.02em;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  margin-bottom: 12px;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  height: 6px;
  cursor: pointer;
}
.budget-presets { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.budget-preset {
  padding: 6px 14px;
  border-radius: var(--r-full);
  background: transparent;
  border: 0.5px solid var(--line-3);
  color: var(--fg-2);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .2s var(--ease-out);
}
.budget-preset:hover { border-color: var(--accent); color: var(--accent); }
.budget-preset.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== HINT BOX ===== */
.hint-box {
  margin-top: 24px;
  padding: 40px 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px dashed var(--line-3);
  border-radius: var(--r-lg);
  text-align: center;
  color: var(--fg-3);
  font-family: var(--font-tagline);
  font-style: italic;
}

/* ===== AI SUGGESTIONS / BUILDS ===== */
.builds-section { margin-top: 28px; }
.builds-section h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 28px;
  letter-spacing: -0.02em;
  color: var(--fg-0);
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.builds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.build-suggestion {
  padding: 18px;
  border-radius: var(--r-lg);
  background: var(--bg-3);
  border: 0.5px solid var(--line-2);
  transition: transform .22s var(--ease-out), border-color .22s var(--ease-out), box-shadow .22s var(--ease-out);
}
.build-suggestion:hover {
  transform: translateY(-2px);
  border-color: rgba(255,0,153,0.35);
  box-shadow: var(--sh-2);
}
.build-suggestion.loading { opacity: 0.6; pointer-events: none; }
.build-suggestion-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.build-suggestion-header h4 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--fg-0);
}
.build-price-badge {
  padding: 4px 12px;
  border-radius: var(--r-full);
  background: rgba(34,224,154,0.12);
  color: var(--ok);
  border: 0.5px solid rgba(34,224,154,0.3);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  flex-shrink: 0;
}
.build-suggestion-desc {
  font-family: var(--font-tagline);
  font-style: italic;
  font-weight: 200;
  font-size: 13px;
  color: var(--fg-2);
  margin-bottom: 12px;
  line-height: 1.4;
}
.build-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.build-chip {
  padding: 4px 10px;
  border-radius: var(--r-full);
  background: var(--bg-4);
  border: 0.5px solid var(--line-2);
  color: var(--fg-2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}
.build-justification {
  font-family: var(--font-tagline);
  font-style: italic;
  font-weight: 300;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 14px;
  line-height: 1.4;
}
.btn-apply-build {
  width: 100%;
  padding: 11px;
  border-radius: var(--r-sm);
  background: var(--grad-pv);
  color: #fff;
  border: none;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .18s var(--ease-out), box-shadow .2s var(--ease-out);
  box-shadow: var(--glow-accent);
}
.btn-apply-build:hover { transform: translateY(-1px); filter: brightness(1.08); }

/* ===== BOTÃO REFAZER IA ===== */
.btn-regen {
  padding: 10px 18px;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--accent);
  border: 0.5px solid rgba(255,0,153,0.4);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s var(--ease-out), border-color .2s var(--ease-out);
}
.btn-regen:hover { background: var(--accent-soft); border-color: var(--accent); }

/* ===== AI ERROR ===== */
.ai-error {
  grid-column: 1 / -1;
  text-align: center;
  padding: 40px 20px;
  color: var(--fg-3);
  font-family: var(--font-tagline);
  font-style: italic;
}

/* ===== PRODUCTS GRID ===== */
.products-filters { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.filter-input, .filter-select {
  background: var(--bg-3);
  border: 0.5px solid var(--line-2);
  color: var(--fg-1);
  padding: 9px 14px;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-size: 13px;
  outline: none;
  transition: border-color .2s var(--ease-out);
}
.filter-input { flex: 1; min-width: 180px; }
.filter-input:focus, .filter-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.filter-select { cursor: pointer; }

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.product-card {
  position: relative;
  padding: 16px;
  border-radius: var(--r-lg);
  background: var(--bg-3);
  border: 0.5px solid var(--line-2);
  cursor: pointer;
  transition: transform .2s var(--ease-out), border-color .2s var(--ease-out), box-shadow .2s var(--ease-out);
}
.product-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,0,153,0.35);
  box-shadow: var(--sh-2);
}
.product-card.selected {
  border-color: var(--ok);
  background: linear-gradient(180deg, rgba(34,224,154,0.08), rgba(34,224,154,0.02));
  box-shadow: 0 0 24px rgba(34,224,154,0.2);
}
.product-card.incompatible {
  opacity: 0.35;
  pointer-events: none;
  border-color: rgba(255,59,92,0.3);
}
.product-thumb {
  width: 100%;
  height: 140px;
  object-fit: contain;
  border-radius: var(--r-md);
  background: var(--bg-2);
  margin-bottom: 12px;
  padding: 10px;
  border: 1px solid var(--line-1);
}
.product-thumb[src^="data:image/svg"] {
  object-fit: cover;
  padding: 0;
  border-color: transparent;
}
.product-brand {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.product-name {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.35;
  color: var(--fg-0);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-price-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.product-price {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--fg-0);
}
.product-price .old-price {
  display: block;
  font-family: var(--font-ui);
  font-style: normal;
  font-weight: 400;
  font-size: 11px;
  color: var(--fg-3);
  text-decoration: line-through;
}
.product-discount {
  background: rgba(34,224,154,0.15);
  color: var(--ok);
  border: 0.5px solid rgba(34,224,154,0.3);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 10px;
  padding: 2px 7px;
  border-radius: var(--r-full);
  margin-left: 6px;
  letter-spacing: 0.05em;
}
.product-check-icon {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--ok);
  color: #081710;
  font-size: 15px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 16px rgba(34,224,154,0.4);
}
.product-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-family: var(--font-mono); }
.product-store { font-size: 10px; color: var(--fg-3); letter-spacing: 0.02em; }
.product-installment { font-size: 10px; color: var(--fg-2); }
.product-selected-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--ok);
  color: #081710;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: var(--r-full);
}
.no-products {
  text-align: center;
  padding: 60px 20px;
  color: var(--fg-2);
  font-family: var(--font-tagline);
  font-style: italic;
}
.no-products svg { width: 48px; height: 48px; opacity: 0.3; margin-bottom: 12px; }

/* ===== STEP ACTIONS ===== */
.step-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 0.5px solid var(--line-2);
  gap: 10px;
  flex-wrap: wrap;
}
.btn-next {
  background: var(--grad-pv);
  color: #fff;
  border: none;
  padding: 13px 28px;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  transition: transform .18s var(--ease-out), box-shadow .2s var(--ease-out), filter .2s;
  box-shadow: var(--glow-accent), var(--sh-2);
}
.btn-next:hover { transform: translateY(-1px); filter: brightness(1.08); box-shadow: var(--glow-accent), var(--sh-3); }
.btn-next:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  filter: grayscale(0.5);
}
.btn-back {
  background: transparent;
  color: var(--fg-2);
  border: 0.5px solid var(--line-3);
  padding: 13px 22px;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color .2s var(--ease-out), color .2s var(--ease-out);
}
.btn-back:hover { border-color: var(--accent); color: var(--accent); }
.btn-skip {
  background: transparent;
  color: var(--fg-3);
  border: none;
  padding: 12px 14px;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: underline;
}
.btn-skip:hover { color: var(--accent); }

/* ===== SIDEBAR ===== */
.sidebar {
  position: sticky; top: 64px;
  max-height: calc(100vh - 64px);
  background: linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%);
  border-left: 0.5px solid var(--line-2);
  padding: 20px 18px;
  overflow-y: auto;
  z-index: 5;
}
.sidebar-title {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 10px;
  display: flex; align-items: center; justify-content: space-between;
}
#totalItems {
  background: var(--bg-4);
  border: 0.5px solid var(--line-2);
  padding: 2px 10px;
  border-radius: var(--r-full);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--fg-2);
}
.sidebar-total {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 36px;
  letter-spacing: -0.02em;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  margin-bottom: 2px;
}
.sidebar-total-label {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 18px;
}

/* ===== BUILD ITEMS (sidebar) ===== */
.build-items { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.build-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  background: var(--bg-3);
  border: 0.5px solid var(--line-2);
  transition: border-color .2s var(--ease-out);
}
.build-item:hover { border-color: var(--line-3); }
.build-item.empty { opacity: 0.55; }
.build-item-icon {
  width: 32px; height: 32px;
  border-radius: var(--r-sm);
  background: var(--bg-4);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.build-item-info { flex: 1; min-width: 0; }
.build-item-cat {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.build-item-name {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 12px;
  color: var(--fg-0);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}
.build-item.empty .build-item-name { color: var(--fg-3); font-weight: 400; font-style: italic; }
.build-item-right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; flex-shrink: 0; }
.build-item-price {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 13px;
  color: var(--fg-0);
}
.build-item-remove {
  background: none; border: none;
  color: var(--fg-3);
  font-size: 14px;
  cursor: pointer;
  padding: 2px;
  transition: color .2s;
}
.build-item-remove:hover { color: var(--err); }

/* ===== COMPATIBILITY / WATTAGE ===== */
.compatibility-alert {
  background: rgba(255,59,92,0.1);
  border: 0.5px solid rgba(255,59,92,0.3);
  border-radius: var(--r-md);
  padding: 10px 12px;
  margin-bottom: 14px;
  font-family: var(--font-ui);
  font-size: 12px;
  color: #ffa5b2;
  display: none;
}
.compatibility-alert.show { display: block; }

.wattage-bar {
  background: var(--bg-3);
  border: 0.5px solid var(--line-2);
  border-radius: var(--r-md);
  padding: 10px 12px;
  margin-bottom: 14px;
}
.wattage-label {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 6px;
}
.wattage-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-0);
  margin-bottom: 8px;
}
.wattage-track {
  height: 6px;
  background: var(--bg-2);
  border-radius: var(--r-full);
  overflow: hidden;
}
.wattage-fill {
  height: 100%;
  border-radius: var(--r-full);
  background: var(--grad-pv);
  transition: width .4s var(--ease-out);
}

/* ===== SIDEBAR ACTIONS ===== */
.sidebar-actions { display: flex; flex-direction: column; gap: 8px; }
.btn-action {
  width: 100%;
  padding: 11px;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  border: 0.5px solid transparent;
  transition: transform .18s var(--ease-out), background .2s var(--ease-out);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-action:hover { transform: translateY(-1px); }
.btn-pdf      { background: rgba(255,176,32,0.12); color: var(--warn); border-color: rgba(255,176,32,0.3); }
.btn-pdf:hover     { background: rgba(255,176,32,0.2); }
.btn-whatsapp { background: rgba(34,224,154,0.12); color: var(--ok); border-color: rgba(34,224,154,0.3); }
.btn-whatsapp:hover{ background: rgba(34,224,154,0.2); }
.btn-save     { background: var(--accent-soft); color: var(--accent); border-color: rgba(255,0,153,0.3); }
.btn-save:hover    { background: rgba(255,0,153,0.2); }
.btn-clear    { background: rgba(255,59,92,0.08); color: #ffa5b2; border-color: rgba(255,59,92,0.25); }
.btn-clear:hover   { background: rgba(255,59,92,0.16); }

/* ===== CHAT ===== */
.chat-section {
  margin-top: 20px;
  border-top: 0.5px solid var(--line-2);
  padding-top: 16px;
}
.chat-title {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
}
.chat-messages {
  max-height: 240px;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 8px;
  margin-bottom: 10px;
}
.chat-msg {
  padding: 9px 12px;
  border-radius: var(--r-md);
  font-family: var(--font-ui);
  font-size: 12px;
  line-height: 1.5;
}
.chat-msg.user {
  background: var(--accent-soft);
  border: 0.5px solid rgba(255,0,153,0.3);
  color: var(--fg-0);
  align-self: flex-end;
  max-width: 92%;
}
.chat-msg.ai {
  background: var(--bg-3);
  border: 0.5px solid var(--line-2);
  color: var(--fg-1);
  align-self: flex-start;
  max-width: 100%;
}
.chat-input-row { display: flex; gap: 6px; }
.chat-input {
  flex: 1;
  background: var(--bg-3);
  border: 0.5px solid var(--line-2);
  color: var(--fg-1);
  padding: 9px 12px;
  border-radius: var(--r-sm);
  font-family: var(--font-ui);
  font-size: 12px;
  outline: none;
  transition: border-color .2s;
}
.chat-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.chat-send {
  background: var(--grad-pv);
  color: #fff;
  border: none;
  padding: 9px 14px;
  border-radius: var(--r-sm);
  font-size: 14px;
  cursor: pointer;
  transition: filter .2s;
  box-shadow: var(--glow-accent);
}
.chat-send:hover { filter: brightness(1.1); }

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 24px; right: 24px;
  padding: 14px 22px;
  border-radius: var(--r-md);
  background: var(--bg-3);
  border: 0.5px solid var(--line-3);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.05em;
  z-index: 999;
  transform: translateY(100px);
  opacity: 0;
  transition: transform .3s var(--ease-spring), opacity .3s;
  backdrop-filter: blur(20px);
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-color: rgba(34,224,154,0.4); color: var(--ok); box-shadow: 0 0 30px rgba(34,224,154,0.2); }
.toast.error   { border-color: rgba(255,59,92,0.4); color: #ffa5b2; box-shadow: 0 0 30px rgba(255,59,92,0.2); }

/* ===== LOADING ===== */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,0,153,0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay {
  display: flex; align-items: center; justify-content: center;
  padding: 60px; gap: 12px;
  color: var(--fg-2);
  font-family: var(--font-tagline);
  font-style: italic;
  grid-column: 1 / -1;
}

/* ===== FINAL SCREEN ===== */
.final-screen {
  text-align: center;
  padding: 40px 20px;
  position: relative;
}
.final-check {
  font-size: 72px;
  margin-bottom: 16px;
  filter: drop-shadow(0 8px 24px rgba(34,224,154,0.4));
}
.final-screen h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 56px;
  letter-spacing: -0.02em;
  color: var(--fg-0);
  margin-bottom: 8px;
}
.final-total {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  font-size: 64px;
  letter-spacing: -0.02em;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  margin: 20px 0 32px;
}
.final-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ===== MOBILE ===== */
.mobile-total-bar { display: none; }
@media (max-width: 900px) {
  .main { padding: 20px 20px 90px; }
  .step-title { font-size: 34px; }
  .final-screen h2 { font-size: 40px; }
  .final-total { font-size: 46px; }
  .sidebar {
    display: none;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    max-height: 72vh;
    border-top: 0.5px solid var(--line-3);
    border-left: none;
    border-top-left-radius: var(--r-xl);
    border-top-right-radius: var(--r-xl);
    z-index: 200;
    padding-bottom: 80px;
  }
  .sidebar.open { display: block; }
  .mobile-total-bar {
    display: flex;
    align-items: center; justify-content: space-between;
    background: var(--bg-2);
    border-top: 0.5px solid var(--line-2);
    padding: 14px 20px;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
  }
  .mobile-total {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 800;
    font-size: 22px;
    background: var(--grad-brand);
    -webkit-background-clip: text; background-clip: text;
    color: transparent;
  }
}

/* =========================================================
   PC 3D STAGE — CSS 3D (pure CSS transforms)
   ========================================================= */
.pc3d-host {
  position: relative;
  margin-bottom: 14px;
  padding: 12px 8px 18px;
  border-radius: var(--r-lg);
  background: radial-gradient(ellipse at 50% 100%, rgba(123,47,190,0.18), transparent 70%);
  overflow: hidden;
}
.pc3d-host__header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
  padding: 0 6px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.pc3d-host__title { display: flex; align-items: center; gap: 6px; }
.pc3d-host__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); animation: pulse-glow 2s var(--ease-inout) infinite; }
@keyframes pulse-glow { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }

.pc3d-stage {
  position: relative;
  width: 100%;
  height: 280px;
  perspective: 1400px;
  perspective-origin: 50% 45%;
  display: grid;
  place-items: center;
  user-select: none;
  touch-action: none;
}

.pc3d {
  position: relative;
  width: 180px;
  height: 270px;
  transform-style: preserve-3d;
  transform: rotateX(-8deg) rotateY(-28deg);
  transition: transform 800ms var(--ease-out);
  animation: pc-idle 20s var(--ease-inout) infinite alternate;
  cursor: grab;
}
.pc3d:active { cursor: grabbing; }
.pc3d[data-drag="true"] { animation: none; transition: none; }
@keyframes pc-idle {
  0%   { transform: rotateX(-8deg) rotateY(-32deg); }
  100% { transform: rotateX(-10deg) rotateY(-22deg); }
}

/* Case faces */
.pc3d .face {
  position: absolute;
  inset: 0;
  border: 0.5px solid rgba(255,255,255,0.12);
  background: linear-gradient(180deg, #0e0e12 0%, #050507 100%);
  box-shadow:
    inset 0 0 40px rgba(0,0,0,0.8),
    inset 0 1px 0 rgba(255,255,255,0.05);
}
/* Case dimensions — W 180 × H 270 × D 112 */
.pc3d .face.front  { transform: translateZ(56px); }
.pc3d .face.back   { transform: translateZ(-56px) rotateY(180deg); background: linear-gradient(180deg, #0a0a0e, #000); }
.pc3d .face.left   {
  width: 112px;
  left: -56px;
  transform: rotateY(-90deg);
  background: linear-gradient(90deg, #0c0c10 0%, #060608 100%);
}
.pc3d .face.right  {
  width: 112px;
  left: 124px;
  transform: rotateY(90deg);
  background: linear-gradient(90deg, #060608 0%, #0c0c10 100%);
}
.pc3d .face.top    {
  height: 112px;
  top: -56px;
  transform: rotateX(90deg);
  background: linear-gradient(180deg, #0a0a0e, #050507);
}
.pc3d .face.bottom {
  height: 112px;
  top: 214px;
  transform: rotateX(-90deg);
  background: #030304;
}

/* Glass front panel */
.pc3d .glass {
  position: absolute;
  top: 10px; left: 10px; right: 10px; bottom: 10px;
  background:
    linear-gradient(135deg, rgba(255,0,153,0.06), rgba(123,47,190,0.04) 50%, rgba(255,119,0,0.06)),
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 0.5px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  overflow: hidden;
}
.pc3d .glass::after {
  content: "";
  position: absolute;
  top: 0; left: -30%;
  width: 50%; height: 100%;
  background: linear-gradient(110deg, transparent 35%, rgba(255,255,255,0.08) 50%, transparent 65%);
  transform: skewX(-12deg);
  animation: glass-sheen 7s var(--ease-inout) infinite;
  pointer-events: none;
}
@keyframes glass-sheen {
  0%, 15%   { left: -30%; opacity: 0; }
  25%       { opacity: 1; }
  60%, 100% { left: 130%; opacity: 0; }
}

/* Interior — parts plane (sits mid-depth inside glass) */
.pc3d .interior {
  position: absolute;
  top: 12px; left: 12px; right: 12px; bottom: 12px;
  transform-style: preserve-3d;
  transform: translateZ(34px);
}

/* Individual parts */
.part {
  position: absolute;
  border-radius: 3px;
  border: 0.5px solid rgba(255,255,255,0.12);
  transition:
    transform 900ms var(--ease-spring),
    opacity 600ms var(--ease-out),
    box-shadow 600ms var(--ease-out),
    filter 600ms var(--ease-out);
}
.part[data-state="pending"] {
  background: transparent !important;
  border: 1px dashed rgba(255,255,255,0.18);
  box-shadow: none !important;
  opacity: 0.35;
}
.part[data-state="installed"] {
  animation: part-install 900ms var(--ease-spring) both;
}
@keyframes part-install {
  0%   { transform: translateZ(100px) rotateX(25deg) scale(1.15); opacity: 0; }
  60%  { opacity: 1; }
  100% { transform: translateZ(0) rotateX(0) scale(1); opacity: 1; }
}

.part-label {
  position: absolute;
  bottom: 2px; left: 4px;
  font-family: var(--font-mono);
  font-size: 7px;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}

/* Motherboard */
.part.mobo {
  top: 2%; left: 6%;
  width: 88%; height: 70%;
  background-image:
    radial-gradient(circle at 30% 30%, rgba(255,0,153,0.08), transparent 50%),
    linear-gradient(135deg, #0a1a0e, #061508),
    repeating-linear-gradient(0deg, rgba(0,255,128,0.04) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(90deg, rgba(0,255,128,0.04) 0 1px, transparent 1px 6px);
  border-color: rgba(0,255,128,0.15);
}
.part.mobo[data-state="installed"] { box-shadow: inset 0 0 16px rgba(0,255,128,0.08); }

/* CPU */
.part.cpu {
  top: 12%; left: 38%;
  width: 30%; height: 18%;
  background: linear-gradient(135deg, #2a2a30, #111116);
  border: 1px solid rgba(255,255,255,0.18);
}
.part.cpu[data-state="installed"] {
  background:
    radial-gradient(circle at 50% 50%, rgba(255,0,153,0.3), transparent 70%),
    linear-gradient(135deg, #3a3a40, #1a1a20);
  box-shadow: 0 0 20px rgba(255,0,153,0.4);
}
.part.cpu::before {
  content: "";
  position: absolute; inset: 20%;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.1) 0 2px, transparent 2px 4px);
  border-radius: 2px;
}

/* GPU */
.part.gpu {
  top: 46%; left: 6%;
  width: 88%; height: 18%;
  background: linear-gradient(180deg, #1a1a20 0%, #0a0a10 100%);
  border-color: rgba(255,255,255,0.15);
}
.part.gpu[data-state="installed"] {
  background: linear-gradient(180deg, #222228 0%, #0a0a10 100%);
  box-shadow:
    0 0 24px rgba(123,47,190,0.5),
    inset 0 0 14px rgba(123,47,190,0.15);
}
.part.gpu::after {
  content: "";
  position: absolute;
  top: 25%; left: 10%; right: 45%; height: 50%;
  background: radial-gradient(circle, rgba(123,47,190,0.6), transparent 70%);
  border-radius: 50%;
  filter: blur(3px);
  opacity: 0;
  transition: opacity 400ms;
}
.part.gpu[data-state="installed"]::after { opacity: 1; animation: fan-spin 2s linear infinite; }
@keyframes fan-spin {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50%      { opacity: 1; transform: scale(1.05); }
}

/* RAM */
.part.ram {
  top: 14%; right: 6%;
  width: 26%; height: 22%;
  background:
    linear-gradient(90deg,
      #0a0a10 0% 8%,
      #1a1a20 8% 18%,
      #0a0a10 18% 28%,
      #1a1a20 28% 38%,
      #0a0a10 38% 48%,
      #1a1a20 48% 58%,
      #0a0a10 58% 68%,
      #1a1a20 68% 78%,
      #0a0a10 78% 100%
    );
  border-color: rgba(255,255,255,0.1);
}
.part.ram[data-state="installed"] {
  background:
    linear-gradient(90deg,
      rgba(255,0,153,0.1) 0% 8%,
      #2a1a30 8% 18%,
      rgba(255,0,153,0.1) 18% 28%,
      #2a1a30 28% 38%,
      rgba(255,0,153,0.1) 38% 48%,
      #2a1a30 48% 58%,
      rgba(255,0,153,0.1) 58% 68%,
      #2a1a30 68% 78%,
      rgba(255,0,153,0.1) 78% 100%
    );
  box-shadow: 0 0 14px rgba(255,0,153,0.3);
}

/* Storage */
.part.storage {
  top: 36%; right: 6%;
  width: 26%; height: 8%;
  background: linear-gradient(135deg, #1a1a20, #0a0a10);
}
.part.storage[data-state="installed"] {
  background: linear-gradient(135deg, #2a2a30, #1a1a20);
  box-shadow: 0 0 10px rgba(92,200,255,0.2);
}

/* PSU */
.part.psu {
  top: 74%; left: 0;
  width: 100%; height: 22%;
  background: linear-gradient(180deg, #0a0a0e, #050507);
  border-color: rgba(255,255,255,0.08);
}
.part.psu[data-state="installed"] {
  background: linear-gradient(180deg, #15151a, #08080b);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}

/* Cooler */
.part.cooler {
  top: 2%; left: 30%;
  width: 46%; height: 14%;
  background: linear-gradient(180deg, #2a2a30, #15151a);
  border-color: rgba(255,255,255,0.18);
}
.part.cooler[data-state="installed"] {
  background: linear-gradient(180deg, #3a3a40, #1a1a20);
  box-shadow: 0 0 16px rgba(92,200,255,0.25);
}
.part.cooler::before {
  content: "";
  position: absolute;
  top: 15%; left: 38%; width: 24%; height: 70%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(92,200,255,0.5), transparent 70%);
  opacity: 0;
  transition: opacity 400ms;
}
.part.cooler[data-state="installed"]::before {
  opacity: 1;
  animation: spin-slow 1.5s linear infinite;
}
@keyframes spin-slow { to { transform: rotate(360deg); } }

/* Case fans */
.part.fans { top: 0; right: -4%; width: 10%; height: 70%; background: transparent; border: none; }
.part.fans .fan {
  position: absolute;
  width: 100%; aspect-ratio: 1;
  border-radius: 50%;
  border: 0.5px solid rgba(255,255,255,0.1);
  background: radial-gradient(circle at 50% 50%, transparent 25%, rgba(255,255,255,0.02) 26%, transparent 45%);
}
.part.fans .fan:nth-child(1) { top: 0; }
.part.fans .fan:nth-child(2) { top: 35%; }
.part.fans .fan:nth-child(3) { top: 70%; }
.part.fans[data-state="installed"] .fan {
  background: radial-gradient(circle, rgba(255,0,153,0.3), transparent 60%);
  box-shadow: 0 0 12px rgba(255,0,153,0.3);
  animation: fan-spin 2s linear infinite;
}

/* EXPLODED VIEW */
.pc3d[data-view="exploded"] { transform: rotateX(-12deg) rotateY(-28deg); }
.pc3d[data-view="exploded"] .part.cpu     { transform: translate(0, -48px) translateZ(24px); }
.pc3d[data-view="exploded"] .part.gpu     { transform: translate(-18px, 24px) translateZ(12px) rotateY(4deg); }
.pc3d[data-view="exploded"] .part.ram     { transform: translate(36px, -18px) translateZ(18px); }
.pc3d[data-view="exploded"] .part.storage { transform: translate(36px, 0) translateZ(12px); }
.pc3d[data-view="exploded"] .part.cooler  { transform: translate(0, -70px) translateZ(36px); }
.pc3d[data-view="exploded"] .part.psu     { transform: translate(0, 48px) translateZ(-6px); }
.pc3d[data-view="exploded"] .part.fans    { transform: translate(36px, 0) translateZ(48px); }
.pc3d[data-view="exploded"] .part.mobo    { transform: translate(0, 0) translateZ(-12px); }

/* WIREFRAME */
.pc3d[data-view="wire"] .face { background: transparent !important; box-shadow: none !important; border-color: rgba(255,0,153,0.35); }
.pc3d[data-view="wire"] .glass { background: transparent !important; border-color: rgba(123,47,190,0.3); }
.pc3d[data-view="wire"] .part {
  background: transparent !important;
  border: 1px solid rgba(255,0,153,0.4) !important;
  box-shadow: 0 0 8px rgba(255,0,153,0.2) !important;
}
.pc3d[data-view="wire"] .part::before,
.pc3d[data-view="wire"] .part::after { opacity: 0 !important; background: transparent !important; }

/* Floor glow */
.pc3d-stage .floor-glow {
  position: absolute;
  bottom: 14%;
  left: 50%;
  transform: translateX(-50%);
  width: 240px; height: 50px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  filter: blur(24px);
  z-index: -1;
  animation: pulse-glow 4s var(--ease-inout) infinite;
  opacity: 0.8;
  pointer-events: none;
}
.pc3d-stage .back-glow {
  position: absolute;
  top: 16%;
  left: 50%;
  transform: translateX(-50%);
  width: 280px; height: 200px;
  background: radial-gradient(ellipse, rgba(123,47,190,0.3) 0%, transparent 70%);
  filter: blur(40px);
  z-index: -1;
  animation: pulse-glow 8s var(--ease-inout) infinite;
  animation-delay: -2s;
  opacity: 0.7;
  pointer-events: none;
}

/* PC3D controls */
.pc3d-controls {
  display: flex; gap: 6px; align-items: center; justify-content: center;
  padding: 6px 10px;
  margin-top: 8px;
  border-radius: var(--r-full);
  background: color-mix(in oklab, var(--bg-2) 70%, transparent);
  backdrop-filter: blur(20px);
  border: 0.5px solid var(--line-2);
}
.pc3d-controls__label {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-right: 4px;
}
.pc3d-btn {
  padding: 5px 11px;
  border-radius: var(--r-full);
  background: transparent;
  color: var(--fg-2);
  border: 0.5px solid var(--line-2);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .2s var(--ease-out);
}
.pc3d-btn:hover { color: var(--fg-0); border-color: var(--line-3); }
.pc3d-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}
.pc3d-sep { width: 1px; height: 14px; background: var(--line-2); margin: 0 2px; }