/* ============== Palette (mirrors the app) ============== */
/* Dark navy + mint/breeze accent. The accent (--accent) reads as cool
   airflow; the secondary blue (--blue) is used for the water-cooling /
   pressure visuals and the "reverse" killer section. */
:root {
  --bg:          #0B0E14;
  --bg-2:        #0F131C;
  --surface:     #131822;
  --surface-2:  #1B2231;
  --surface-hi:  #222B3D;
  --border:      #2A3447;
  --border-2:    #3D4A63;
  --text:        #E7EDF5;
  --text-2:      #8A95A8;
  --text-mute:   #5C6679;

  --accent:      #34E0C2;
  --accent-2:   #5CF0D6;
  --accent-dim:  rgba(52, 224, 194, 0.18);

  --blue:        #7C9CFF;
  --blue-2:      #94B0FF;
  --blue-dim:    rgba(124, 156, 255, 0.18);

  --warn:        #FFB454;
  --error:       #FF6B7A;

  --shadow-lg:   0 30px 60px -20px rgba(0, 0, 0, 0.55), 0 12px 24px -12px rgba(0, 0, 0, 0.6);
  --radius:      14px;
}

/* ============== Reset / base ============== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', 'Segoe UI Variable Display', 'Segoe UI', system-ui, sans-serif;
  background:
    radial-gradient(1100px 600px at 80% -10%, rgba(52, 224, 194, 0.08), transparent 60%),
    radial-gradient(900px 600px at 5% 15%, rgba(124, 156, 255, 0.07), transparent 60%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
code, .mono { font-family: 'JetBrains Mono', Cascadia Mono, Consolas, monospace; }

/* ============== Layout helpers ============== */
.muted { color: var(--text-2); }
.small { font-size: 13px; }

/* ============== Pills / badges / kbd ============== */
.pill {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text-mute);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.badge.green {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(52, 224, 194, 0.4);
}
.badge.blue {
  background: var(--blue-dim);
  color: var(--blue);
  border: 1px solid rgba(124, 156, 255, 0.4);
}
.kbd {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text);
}

/* ============== Buttons ============== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.2s ease;
  border: 0;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: #042019;
  box-shadow: 0 12px 30px -10px rgba(52, 224, 194, 0.5);
}
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--border-2); background: var(--surface); }
.btn-lg { padding: 14px 26px; font-size: 15px; }

/* ============== Nav ============== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 36px;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.brand-name { font-weight: 700; letter-spacing: -0.01em; }
.logo {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--accent);
}
.brand.small .logo { width: 28px; height: 28px; }
/* Ring + center dot mark (matches the app icon). The ring inherits the accent
   via currentColor; the center dot gets the brighter accent for the same
   two-tone look as the app's icon. */
.logo svg circle + circle,
.app-logo svg circle + circle { stroke: var(--accent-2); }
.nav-links {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 14px;
  color: var(--text-2);
}
.nav-links a:hover { color: var(--text); }
.nav-cta { padding: 9px 16px; font-size: 13px; }

/* ============== Language switch ============== */
/* Two-button pill (EN | FR). The body gets a .lang-en / .lang-fr class so the
   active button is highlighted via CSS, no JS toggle needed. */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-left: 8px;
}
.lang-switch button {
  background: transparent;
  color: var(--text-2);
  border: 0;
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 0.03em;
}
.lang-switch button:hover { color: var(--text); }
body.lang-en .lang-switch button[data-lang="en"],
body.lang-fr .lang-switch button[data-lang="fr"] {
  background: var(--accent);
  color: #042019;
}

/* ============== Hero ============== */
.hero {
  padding: 76px 36px 36px;
  max-width: 1320px;
  margin: 0 auto;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 12px;
  margin: 0 0 18px;
}
.hero-title {
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1.07;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 22px;
}
.hero-title .dots { color: var(--text-mute); }
.hero-title .emphasis {
  display: inline-block;
  color: var(--accent);
  font-weight: 800;
}
.hero-title .emphasis u { text-decoration-thickness: 3px; text-underline-offset: 5px; }
.hero-sub {
  font-size: 20px;
  color: var(--text);
  margin: 0 0 18px;
}
.hero-sub strong { color: var(--accent); }
.hero-sub .emphasis-soft { color: var(--blue); font-weight: 800; }
.hero-lead {
  font-size: 16px;
  color: var(--text-2);
  margin: 0 0 30px;
  max-width: 56ch;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.hero-tags li {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.015);
}
/* Highlighted signature hero tag (the "New · BREEZE control law" pill). */
.hero-tag-3d {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border)) !important;
  background: var(--accent-dim) !important;
  color: var(--accent) !important;
  font-weight: 700;
}

/* ============== Hero app mockup ============== */
.hero-app { display: flex; justify-content: center; }
.app-window {
  width: 100%;
  max-width: 440px;
  border-radius: 18px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
}
.app-accent {
  height: 2px;
  background: var(--accent);
}
.app-titlebar {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 42px;
  padding: 0 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.app-logo { color: var(--accent); display: inline-flex; }
.app-title { font-weight: 600; font-size: 14px; }
.app-version {
  margin-left: 8px;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--text-mute);
  font-size: 10px;
  font-weight: 600;
}
.app-chrome { margin-left: auto; display: inline-flex; gap: 8px; }
.chrome-btn { width: 12px; height: 12px; border-radius: 50%; background: var(--surface-2); }
.chrome-btn.close { background: var(--surface-hi); }
.app-body { padding: 18px; }

/* ============== Trust strip ============== */
.trust {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  padding: 28px 36px;
  margin-top: 30px;
}
.trust-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.trust-num {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 32px;
  color: var(--accent);
}
.trust-lbl { color: var(--text-2); font-size: 13px; }

/* ============== Killer feature sections ============== */
.killer { padding: 100px 36px; }
.killer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.killer.reverse .killer-grid { grid-template-columns: 1fr 1fr; direction: rtl; }
.killer.reverse .killer-grid > * { direction: ltr; }
.killer-copy h2 {
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 18px;
  font-weight: 800;
}
.killer-copy p { font-size: 16px; color: var(--text-2); margin: 0 0 18px; }
.killer-copy strong { color: var(--text); }
.bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.bullets li {
  position: relative;
  padding-left: 26px;
  color: var(--text-2);
  font-size: 15px;
}
.bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.killer.reverse .bullets li::before { background: var(--blue); }
.bullets strong { color: var(--text); }

.flow-foot {
  margin-top: 14px;
  text-align: center;
  color: var(--text-mute);
  font-size: 12px;
}
.flow-arrow { color: var(--accent); }
.flow-caption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-2);
}

/* ============== Feature grid ============== */
.features { padding: 80px 36px; max-width: 1320px; margin: 0 auto; }
.section-title {
  text-align: center;
  font-size: clamp(28px, 3vw, 36px);
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
.section-sub {
  text-align: center;
  color: var(--text-2);
  font-size: 16px;
  max-width: 720px;
  margin: 0 auto 50px;
}
.feature-grid {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.feature:hover {
  transform: translateY(-3px);
  border-color: var(--border-2);
}
.feature-mock {
  background: var(--surface-2);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
  min-height: 120px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
}
.feature h3 { margin: 0 0 8px; font-size: 18px; }
.feature p { margin: 0; color: var(--text-2); font-size: 14px; }
.feature code {
  background: var(--surface-hi);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent);
  font-size: 12.5px;
}

/* Roadmap pill on coming-soon feature cards */
.feature.roadmap { border-style: dashed; }
.soon {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--warn);
  background: rgba(255, 180, 84, 0.14);
  border: 1px solid rgba(255, 180, 84, 0.4);
  vertical-align: middle;
}

/* Device tags */
.device-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.device-tag {
  padding: 6px 10px;
  border-radius: 6px;
  background: var(--surface-hi);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
}

/* ============== How it works ============== */
.how { padding: 90px 36px; max-width: 1200px; margin: 0 auto; }
.how-grid {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.how-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  position: relative;
}
.how-num {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--blue);
  font-size: 22px;
  margin-bottom: 6px;
}
.how-step h4 { margin: 0 0 8px; font-size: 16px; }
.how-step p { margin: 0; color: var(--text-2); font-size: 14px; }
.how-step code { color: var(--blue); background: rgba(124, 156, 255, 0.12); padding: 1px 5px; border-radius: 4px; font-size: 12px; }

/* ============== Download ============== */
.download { padding: 80px 36px; max-width: 1100px; margin: 0 auto; }
.download-card {
  background:
    radial-gradient(700px 300px at 5% 0%, rgba(52, 224, 194, 0.08), transparent 60%),
    radial-gradient(700px 300px at 95% 100%, rgba(124, 156, 255, 0.08), transparent 60%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 50px 50px 38px;
}
.download-head { text-align: center; margin-bottom: 30px; }
.download-head h2 { margin: 0 0 8px; font-size: 32px; letter-spacing: -0.01em; }
.download-head p { color: var(--text-2); margin: 0; }
.download-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 18px;
}
/* Single-tile variant: one column, centered, max ~520px so the tile stays
   readable on wide layouts. Used because we only surface the MSI installer. */
.download-grid.single {
  grid-template-columns: minmax(0, 520px);
  justify-content: center;
}
.download-tile {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 22px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
}
.download-tile:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}
/* MSI tile = featured: accent-tinted background, brighter border. */
.download-tile.featured {
  background:
    linear-gradient(135deg, rgba(52, 224, 194, 0.13), rgba(52, 224, 194, 0.04) 60%),
    var(--surface-2);
  border-color: rgba(52, 224, 194, 0.45);
  box-shadow: 0 0 0 0 transparent, 0 12px 30px -18px rgba(52, 224, 194, 0.45);
}
.download-tile.featured:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 0 transparent, 0 18px 36px -16px rgba(52, 224, 194, 0.55);
}
.dl-icon { color: var(--accent); display: inline-flex; }
.dl-title { font-weight: 600; font-size: 16px; }
.dl-title code { background: var(--surface-hi); padding: 1px 6px; border-radius: 5px; color: var(--accent); }
.dl-sub { color: var(--text-2); font-size: 13px; }
.dl-cta {
  background: var(--accent);
  color: #042019;
  font-weight: 700;
  font-size: 13px;
  padding: 9px 16px;
  border-radius: 8px;
}
.download-foot {
  color: var(--text-mute);
  font-size: 12px;
  text-align: center;
  max-width: 720px;
  margin: 18px auto 0;
}

/* ============== Footer ============== */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 50px 36px 30px;
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 30px;
}
.footer h5 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  margin: 0 0 14px;
}
.footer a {
  display: block;
  color: var(--text);
  font-size: 14px;
  padding: 4px 0;
}
.footer a:hover { color: var(--accent); }
/* Links INSIDE a paragraph (the tagline) must stay inline, otherwise the
   anchor gets broken to its own line by the rule above. */
.footer p a {
  display: inline;
  padding: 0;
  font-size: inherit;
  color: var(--accent);
}
.footer p { margin: 0 0 14px; }
.footer-bottom {
  max-width: 1200px;
  margin: 30px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  color: var(--text-mute);
  font-size: 12px;
}

/* ============== Responsive ============== */
@media (max-width: 1080px) {
  .nav { padding: 14px 22px; }
  .nav-links { display: none; }
  /* Lang switch stays visible at all widths, the FR/EN toggle is critical UX. */
  .lang-switch { margin-left: auto; }
  .hero { padding: 56px 22px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .killer { padding: 70px 22px; }
  .killer-grid, .killer.reverse .killer-grid {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 40px;
  }
  .features { padding: 60px 22px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .how { padding: 60px 22px; }
  .how-grid { grid-template-columns: 1fr 1fr; }
  .download { padding: 60px 22px; }
  .download-card { padding: 32px 26px; }
  .download-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero-title { font-size: 34px; }
  .hero-sub { font-size: 18px; }
  .feature-grid { grid-template-columns: 1fr; }
  .how-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .trust-grid { grid-template-columns: 1fr; }
}

/* =======================================================================
   FanForge mockups
   Appended block. Reuses the existing palette tokens (--accent, --blue,
   --surface, etc.) for: the hero app mockup (fan/sensor list + breeze
   curve), the killer-1 BREEZE response visual, the killer-2 cooling-rig
   3D scene, the compatibility hub, and the FanForge feature-card mocks.
   ======================================================================= */

/* ---- Reusable swatch / dot ---- */
.ff-swatch {
  width: 12px; height: 12px;
  border-radius: 4px;
  background: var(--c, var(--accent));
  box-shadow: 0 0 6px color-mix(in srgb, var(--c, var(--accent)) 55%, transparent);
  flex: none;
}

/* ---- Reusable slider track + knob ---- */
.ff-slider {
  position: relative;
  flex: 1;
  height: 6px;
  border-radius: 99px;
  background: var(--surface-2);
}
.ff-knob {
  position: absolute;
  top: 50%;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 8px var(--accent-dim);
}

/* ---- Hero app mockup body ---- */
.ff-mock {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 14px;
}
.ff-curve-panel {
  background: radial-gradient(120% 120% at 30% 0%, rgba(52, 224, 194, 0.12), transparent 55%),
              radial-gradient(120% 120% at 90% 100%, rgba(124, 156, 255, 0.14), transparent 55%),
              #070a0f;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ff-curve-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ff-curve-name { font-weight: 600; font-size: 13px; color: var(--text); }
.ff-rpm {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 5px;
  padding: 2px 6px;
}
/* The BREEZE response curve drawn as an SVG: a near-vertical attack then a
   long decelerating release "tail" — the signature asymmetric shape. */
.ff-curve-svg { width: 100%; flex: 1; min-height: 110px; display: block; }
.ff-curve-svg .grid { stroke: rgba(255,255,255,0.06); stroke-width: 1; }
.ff-curve-svg .axis { stroke: var(--border-2); stroke-width: 1; }
.ff-curve-svg .breeze {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px var(--accent-dim));
}
.ff-curve-svg .breeze-fill { fill: url(#breezeFill); opacity: 0.5; }
.ff-curve-svg .gust {
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.4;
  stroke-dasharray: 3 3;
  opacity: 0.8;
}

/* ---- Hero app mockup side panel (fan/sensor list) ---- */
.ff-side { display: flex; flex-direction: column; gap: 8px; }
.ff-side-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.ff-fan-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.ff-fan-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-2);
  padding: 5px 8px;
  border-radius: 7px;
  border: 1px solid transparent;
}
.ff-fan-list li.active {
  color: var(--text);
  background: var(--surface-2);
  border-color: var(--border);
}
.ff-fan-list li .rpm {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--accent);
}
.ff-param { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--text-2); }
.ff-param > span:first-child { min-width: 64px; }
.ff-sensors { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 4px; }
.ff-sensor {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--surface-2);
  color: var(--text-mute);
  border: 1px solid var(--border);
}
.ff-sensor.hot { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); }

/* ---- Spinning fan glyph (used in hero list + feature mocks) ---- */
.ff-fan-glyph {
  width: 14px; height: 14px;
  color: var(--accent);
  flex: none;
}
.ff-fan-glyph svg { display: block; animation: ff-spin 2.4s linear infinite; }
.ff-fan-glyph.fast svg { animation-duration: 0.9s; }
@keyframes ff-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .ff-fan-glyph svg { animation: none; }
}

/* ---- Killer 1: BREEZE asymmetric response visual ---- */
.ff-breeze {
  background:
    radial-gradient(120% 100% at 20% 0%, rgba(52, 224, 194, 0.10), transparent 55%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px 24px 18px;
}
.ff-breeze-svg { width: 100%; height: auto; display: block; }
.ff-breeze-svg .grid { stroke: rgba(255,255,255,0.05); stroke-width: 1; }
.ff-breeze-svg .axis { stroke: var(--border-2); stroke-width: 1.2; }
.ff-breeze-svg .temp {
  fill: none; stroke: var(--warn); stroke-width: 2; stroke-dasharray: 4 4; opacity: 0.85;
}
.ff-breeze-svg .fan {
  fill: none; stroke: var(--accent); stroke-width: 3;
  stroke-linecap: round; stroke-linejoin: round;
  filter: drop-shadow(0 0 5px var(--accent-dim));
}
.ff-breeze-legend {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-2);
}
.ff-breeze-legend span { display: inline-flex; align-items: center; gap: 7px; }
.ff-leg-dash { width: 18px; height: 0; border-top: 2px dashed var(--warn); }
.ff-leg-line { width: 18px; height: 0; border-top: 3px solid var(--accent); border-radius: 2px; }

/* ---- Killer 2: cooling-rig 3D scene (CSS isometric tower) ---- */
.ff-rig3d {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 0.92;
  border-radius: 18px;
  border: 1px solid var(--border);
  background:
    radial-gradient(130% 110% at 50% 8%, rgba(52, 224, 194, 0.10), transparent 55%),
    radial-gradient(120% 120% at 85% 100%, rgba(124, 156, 255, 0.12), transparent 55%),
    linear-gradient(180deg, #0a0e16, #070a0f);
  overflow: hidden;
  perspective: 1100px;
  perspective-origin: 50% 38%;
}
.ff-rig-floor {
  position: absolute;
  left: 50%; top: 60%;
  width: 116%; height: 116%;
  transform: translate(-50%, 0) rotateX(72deg);
  transform-origin: 50% 0;
  background:
    linear-gradient(180deg, rgba(124, 156, 255, 0.07), transparent 70%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 46px);
  opacity: 0.7;
}
/* The glass tower: 3 isometric faces. */
.ff-tower {
  position: absolute;
  left: 18%; top: 16%;
  width: 150px; height: 230px;
  transform-style: preserve-3d;
  transform: rotateX(8deg) rotateY(-26deg);
}
.ff-face { position: absolute; inset: 0; border: 1px solid var(--border-2); }
.ff-face-right {
  background:
    linear-gradient(135deg, rgba(52, 224, 194, 0.14), rgba(124, 156, 255, 0.10) 60%, transparent),
    rgba(14, 19, 28, 0.78);
  backdrop-filter: blur(1px);
  box-shadow: inset 0 0 26px rgba(0, 0, 0, 0.5);
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 12px;
  gap: 10px;
}
.ff-face-left {
  width: 48px;
  transform-origin: left center;
  transform: rotateY(-90deg);
  background: linear-gradient(180deg, rgba(20, 27, 40, 0.95), rgba(10, 14, 22, 0.95));
}
.ff-face-top {
  height: 48px;
  transform-origin: top center;
  transform: rotateX(90deg);
  background: linear-gradient(135deg, rgba(34, 43, 61, 0.95), rgba(16, 21, 32, 0.95));
}
/* A row of auto-placed fans on a tower face (top intake / exhaust). */
.ff-fan-row { display: flex; gap: 8px; justify-content: center; }
.ff-fan-unit {
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
  background: radial-gradient(circle, rgba(52,224,194,0.12), transparent 70%);
  display: grid; place-items: center;
  color: var(--accent);
}
.ff-fan-unit svg { display: block; animation: ff-spin 1.6s linear infinite; }
.ff-fan-unit.slow svg { animation-duration: 3s; opacity: 0.7; }
@media (prefers-reduced-motion: reduce) { .ff-fan-unit svg { animation: none; } }
/* The radiator block (a finned rectangle) the top fans push through. */
.ff-rad {
  height: 22px;
  border-radius: 5px;
  border: 1px solid var(--border-2);
  background: repeating-linear-gradient(90deg,
    rgba(124,156,255,0.30) 0 2px, rgba(14,19,28,0.6) 2px 6px);
  box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}
/* Pressure readout chip + advisor billboard. */
.ff-rig-tag {
  position: absolute;
  top: 12px; left: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(7, 10, 15, 0.72);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  border-radius: 6px;
  padding: 4px 8px;
  z-index: 3;
}
.ff-rig-pressure {
  position: absolute;
  top: 12px; right: 12px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--blue);
  background: rgba(7, 10, 15, 0.72);
  border: 1px solid color-mix(in srgb, var(--blue) 35%, var(--border));
  border-radius: 6px;
  padding: 4px 8px;
  z-index: 3;
}
.ff-rig-advisor {
  position: absolute;
  left: 12px; bottom: 12px;
  max-width: 62%;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 11px;
  line-height: 1.35;
  color: var(--text);
  background: rgba(7, 10, 15, 0.82);
  border: 1px solid rgba(255, 180, 84, 0.4);
  border-radius: 8px;
  padding: 8px 10px;
  z-index: 3;
}
.ff-rig-advisor .bulb { color: var(--warn); flex: none; }
/* Airflow particles drifting up from intake fans. */
.ff-flow {
  position: absolute;
  left: 0; right: 0; bottom: 18%;
  height: 40%;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(6px 6px at 30% 90%, var(--accent-dim), transparent 70%),
    radial-gradient(5px 5px at 45% 60%, var(--accent-dim), transparent 70%),
    radial-gradient(4px 4px at 38% 30%, rgba(52,224,194,0.10), transparent 70%);
  opacity: 0.8;
}

/* ---- Compatibility hub ---- */
.ff-compat {
  padding: 30px 24px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}
.ff-compat-hub {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 99px;
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  font-weight: 700;
}
.ff-hub-glow {
  position: absolute;
  inset: -8px;
  border-radius: 99px;
  background: radial-gradient(closest-side, var(--accent-dim), transparent);
  z-index: -1;
}
.ff-hub-label { color: var(--accent); }
.ff-compat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  width: 100%;
}
.ff-compat-dev {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.ff-dot { width: 9px; height: 9px; border-radius: 50%; flex: none; box-shadow: 0 0 7px currentColor; }
.ff-dot.a { background: #34E0C2; color: #34E0C2; }
.ff-dot.b { background: #FFC24D; color: #FFC24D; }
.ff-dot.c { background: #7C9CFF; color: #7C9CFF; }
.ff-dot.d { background: #FF7AD6; color: #FF7AD6; }
.ff-dot.e { background: #A97CFF; color: #A97CFF; }
.ff-dot.f { background: var(--text-mute); color: var(--text-mute); box-shadow: none; }

/* ---- Feature-card mocks ---- */
.ff-feat-fans {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: center;
}
.ff-feat-fan {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
  background: radial-gradient(circle, rgba(52,224,194,0.12), transparent 70%);
  display: grid; place-items: center;
  color: var(--accent);
}
.ff-feat-fan svg { animation: ff-spin 1.8s linear infinite; }
.ff-feat-fan.slow svg { animation-duration: 4s; opacity: 0.7; }
.ff-feat-fan.fast svg { animation-duration: 0.8s; }
@media (prefers-reduced-motion: reduce) { .ff-feat-fan svg { animation: none; } }

.ff-feat-params {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0 14px;
  width: 100%;
}
.ff-feat-params .ff-slider { min-width: 70px; max-width: 130px; }

.ff-feat-sensors {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
}
.ff-temp-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--surface-hi);
  border: 1px solid var(--border);
}
.ff-temp-chip .lbl { font-size: 10px; color: var(--text-mute); font-family: 'Inter', sans-serif; }
.ff-temp-chip .val { font-size: 18px; font-weight: 700; color: var(--accent); }
.ff-temp-chip.cpu .val { color: var(--accent); }
.ff-temp-chip.gpu .val { color: var(--blue); }
.ff-temp-op { font-size: 20px; color: var(--text-mute); }

.ff-feat-weight { display: flex; flex-direction: column; gap: 10px; width: 100%; padding: 0 16px; }
.ff-bar {
  position: relative;
  height: 18px;
  border-radius: 6px;
  background: var(--surface-2);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.ff-bar b {
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: 6px;
  background: var(--accent);
}
.ff-bar.full b { background: var(--surface-hi); }
.ff-bar i {
  position: relative;
  font-style: normal;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--bg);
  padding-left: 8px;
  z-index: 1;
}
.ff-bar.full i { color: var(--text-2); }

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .ff-mock { grid-template-columns: 1fr; }
  .ff-compat-grid { grid-template-columns: 1fr 1fr; }
  .ff-tower { width: 120px; height: 180px; left: 14%; }
  .ff-rig-advisor { max-width: 80%; }
}