/* ============================================================
   EpicenterDSP Player — Official Site
   Premium "pro-audio hardware" system — matte black + signal red
   Inspired by classic car-audio bass-restoration processors.
   ============================================================ */

:root {
  --bg: #060606;
  --bg-2: #0b0b0c;
  --panel-top: #17171a;
  --panel-bot: #0d0d0f;
  --line: rgba(255, 255, 255, 0.07);
  --line-2: rgba(255, 255, 255, 0.12);
  --hair: rgba(255, 255, 255, 0.05);

  --txt: #f2f2f3;
  --muted: #9c9ca4;
  --dim: #5c5c64;
  --faint: #35353b;

  --red: #f20d1e;
  --red-hi: #ff4a3d;
  --red-deep: #a80812;
  --amber: #d9a441;

  --font-display: "Chakra Petch", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "Chakra Petch", ui-monospace, monospace;

  --r: 14px;
  --r-lg: 20px;
  --nav-h: 68px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 20px);
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--txt);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.preloading { overflow: hidden; }

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul { list-style: none; }
::selection { background: rgba(225, 21, 21, 0.4); color: #fff; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

/* ---------- Ambient ---------- */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(1200px 520px at 50% -8%, rgba(225, 21, 21, 0.10), transparent 60%),
    radial-gradient(900px 600px at 100% 100%, rgba(143, 13, 16, 0.06), transparent 60%),
    var(--bg);
}

/* ============================================================
   PRELOADER — power-on sequence
   ============================================================ */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #050505;
  display: grid;
  place-items: center;
  transition: opacity 0.7s ease 0.15s, visibility 0.7s 0.15s;
}
.preloader.done { opacity: 0; visibility: hidden; }
.pre-core {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 34px;
  transition: transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.7s ease;
}
.preloader.done .pre-core { transform: scale(1.03); opacity: 0; }

/* breathing logo (assets/logo.svg) — calm, minimal */
.pre-logo {
  width: 214px; height: auto;
  animation: breathe 2.8s ease-in-out infinite;
  will-change: transform, opacity, filter;
}
@keyframes breathe {
  0%, 100% { transform: scale(0.965); opacity: 0.68; filter: drop-shadow(0 0 0 rgba(242, 13, 30, 0)); }
  50% { transform: scale(1.035); opacity: 1; filter: drop-shadow(0 0 34px rgba(242, 13, 30, 0.38)); }
}
.pre-bar {
  width: 172px; height: 2px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}
.pre-bar i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, transparent, var(--red));
  animation: preFill 2.6s cubic-bezier(0.3, 0.4, 0.2, 1) forwards;
}
.preloader.quick .pre-bar i { animation-duration: 0.4s; }
@keyframes preFill { to { width: 100%; } }

/* ---------- Reusable knob glyph (brand device) ---------- */
.knob {
  position: relative;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 30%, #2a2a2e, #141416 52%, #060608);
  border: 1px solid #2c2c31;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.08), inset 0 -6px 14px rgba(0, 0, 0, 0.6);
}
.knob::after {
  content: "";
  position: absolute;
  left: 50%; top: 12%;
  width: 3px; height: 30%;
  background: var(--red);
  border-radius: 3px;
  transform: translateX(-50%);
  box-shadow: 0 0 8px rgba(225, 21, 21, 0.8);
}
.knob-arc {
  position: absolute; inset: -8px;
  border-radius: 50%;
  background: conic-gradient(from 215deg, var(--red) 0deg, var(--red) 250deg, transparent 250deg);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 4px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 4px));
  filter: drop-shadow(0 0 5px rgba(225, 21, 21, 0.5));
}

/* ---------- Layout ---------- */
.wrap { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
section { position: relative; padding: 116px 0; }
.divider { height: 1px; background: var(--line); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 20px;
}
.eyebrow .idx { color: var(--faint); }
.eyebrow::before { content: ""; width: 30px; height: 1px; background: var(--red); opacity: 0.6; }

.sec-head { max-width: 700px; margin-bottom: 60px; }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head.center .eyebrow { justify-content: center; }
.sec-head h2 {
  font-size: clamp(1.75rem, 3.6vw, 2.55rem);
  margin-bottom: 18px;
}
.sec-head p { color: var(--muted); font-size: 1.05rem; max-width: 620px; }
.sec-head.center p { margin-inline: auto; }

.red { color: var(--red-hi); }
.grad-txt {
  background: linear-gradient(180deg, #ff5b52, #e11515);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: linear-gradient(180deg, #ef2222, #c11212);
  color: #fff;
  border: 1px solid #ff5b52;
  box-shadow: 0 6px 18px rgba(180, 14, 20, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(200, 16, 22, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.3); filter: brightness(1.05); }
.btn:active { transform: translateY(0); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--txt);
  border: 1px solid var(--line-2);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}
.btn-ghost:hover { border-color: rgba(225, 21, 21, 0.55); transform: translateY(-2px); }

/* Store badges */
.store-btns { display: flex; flex-wrap: wrap; gap: 12px; }
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px 10px 16px;
  border-radius: 12px;
  background: linear-gradient(180deg, #141416, #0c0c0e);
  border: 1px solid var(--line-2);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.store-btn svg { width: 24px; height: 24px; fill: var(--txt); flex-shrink: 0; }
.store-btn .st { display: flex; flex-direction: column; line-height: 1.2; text-align: left; }
.store-btn .st small {
  font-family: var(--font-display);
  font-size: 0.58rem; font-weight: 600;
  color: var(--muted); letter-spacing: 0.12em; text-transform: uppercase;
}
.store-btn .st strong { font-family: var(--font-display); font-size: 0.98rem; font-weight: 600; }
.store-btn:hover { transform: translateY(-2px); border-color: rgba(225, 21, 21, 0.5); }
.store-btn.primary {
  border-color: rgba(225, 21, 21, 0.5);
  background: linear-gradient(180deg, rgba(225, 21, 21, 0.16), #0c0c0e 70%);
}
.store-btn.primary .st small { color: var(--red-hi); }
.store-btn.soon, .btn-ghost.soon { opacity: 0.5; cursor: default; pointer-events: none; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease;
}
.nav.scrolled {
  background: rgba(6, 6, 6, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.nav-inner { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand .brand-mark { height: 32px; width: auto; }
.brand-word {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-display); font-weight: 700; font-size: 0.98rem;
  letter-spacing: 0.14em; text-transform: uppercase;
}
.brand-word em { font-style: normal; color: var(--red); }
.brand-word .knob-glyph {
  width: 20px; height: 20px; border-radius: 50%;
  background: radial-gradient(circle at 38% 30%, #2a2a2e, #101012 60%);
  border: 1px solid #333;
  position: relative;
}
.brand-word .knob-glyph::after {
  content: ""; position: absolute; left: 50%; top: 2px;
  width: 2px; height: 7px; background: var(--red); border-radius: 2px; transform: translateX(-50%);
}

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 0.86rem; font-weight: 500; color: var(--muted); transition: color 0.25s ease; position: relative; }
.nav-links a:not(.btn):hover { color: var(--txt); }
.nav-links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--red); transition: width 0.3s ease;
}
.nav-links a:not(.btn):hover::after { width: 100%; }
.nav-links .btn { padding: 9px 18px; font-size: 0.8rem; }

.nav-burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-burger span { width: 22px; height: 2px; border-radius: 2px; background: var(--txt); transition: transform 0.3s ease, opacity 0.3s ease; }
.nav.open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero { min-height: 100svh; display: flex; align-items: center; padding: calc(var(--nav-h) + 60px) 0 60px; }
.hero-grid { display: grid; grid-template-columns: 1.02fr 0.98fr; align-items: center; gap: 64px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 6px 14px; border-radius: 6px;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.02);
  font-family: var(--font-display); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted);
  margin-bottom: 26px;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 0 rgba(225, 21, 21, 0.6); animation: dotPulse 2s infinite; }
@keyframes dotPulse { 0% { box-shadow: 0 0 0 0 rgba(225, 21, 21, 0.55); } 70% { box-shadow: 0 0 0 8px rgba(225, 21, 21, 0); } 100% { box-shadow: 0 0 0 0 rgba(225, 21, 21, 0); } }

.hero h1 { font-size: clamp(2.3rem, 5vw, 3.7rem); font-weight: 700; margin-bottom: 22px; }
.hero-lead { color: var(--muted); font-size: 1.08rem; max-width: 520px; margin-bottom: 32px; }
.hero-note { margin-top: 18px; font-size: 0.86rem; color: var(--dim); }
.hero-note strong { color: var(--muted); font-weight: 600; }

/* Hi-Res Audio trust badge */
.hires-row { display: flex; align-items: center; gap: 14px; margin-top: 26px; }
.hires-badge { height: 40px; width: auto; flex-shrink: 0; }
.hires-row span { font-size: 0.78rem; color: var(--dim); max-width: 260px; line-height: 1.4; }

/* spec list under hero */
.spec-list { display: flex; gap: 26px; margin-top: 34px; flex-wrap: wrap; }
.spec-list li { display: flex; flex-direction: column; }
.spec-list .v { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: var(--txt); }
.spec-list .v em { font-style: normal; color: var(--red); }
.spec-list .k { font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim); margin-top: 2px; }

/* ---------- Phone (holds REAL screenshot) ---------- */
.hero-visual { display: flex; justify-content: center; perspective: 1200px; }
.phone { position: relative; transform-style: preserve-3d; transition: transform 0.3s ease-out; animation: float 7s ease-in-out infinite; }
@keyframes float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -12px; } }
.phone-glow { position: absolute; inset: 6% -14%; z-index: -1; background: radial-gradient(58% 52% at 50% 52%, rgba(225, 21, 21, 0.24), transparent 72%); filter: blur(34px); }
.phone-frame {
  width: 300px; border-radius: 42px; padding: 9px;
  background: linear-gradient(155deg, #2a2a2d, #0c0c0e 42%, #1c1c1f);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 44px 90px rgba(0, 0, 0, 0.72), inset 0 0 0 1px rgba(0, 0, 0, 0.8);
}
.phone-screen {
  position: relative; border-radius: 34px; overflow: hidden;
  aspect-ratio: 9 / 19.3; background: #0a0a0b;
}
.phone-notch { position: absolute; top: 11px; left: 50%; transform: translateX(-50%); width: 84px; height: 22px; border-radius: 100px; background: #050505; z-index: 6; }

/* ---------- Honest image slot (no fake app art) ---------- */
.slot { position: absolute; inset: 0; z-index: 2; }
.slot img { width: 100%; height: 100%; object-fit: cover; display: block; }
.slot-ph {
  position: absolute; inset: 0; z-index: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  background:
    linear-gradient(180deg, #101012, #0a0a0b),
    repeating-linear-gradient(0deg, transparent 0 22px, rgba(255,255,255,0.012) 22px 23px);
  color: var(--dim); text-align: center; padding: 24px;
}
.slot-ph .knob { width: 58px; height: 58px; }
.slot-ph .knob-arc { inset: -8px; }
.slot-ph b { font-family: var(--font-mono); font-size: 0.82rem; color: var(--muted); letter-spacing: 0.04em; }
.slot-ph small { font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* ============================================================
   SPEC BAR (replaces generic marquee)
   ============================================================ */
.specbar { border-block: 1px solid var(--line); background: rgba(255, 255, 255, 0.012); }
.specbar-grid { display: grid; grid-template-columns: repeat(5, 1fr); }
.specbar-grid div { padding: 26px 20px; text-align: center; border-left: 1px solid var(--line); }
.specbar-grid div:first-child { border-left: none; }
.specbar-grid .v { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; }
.specbar-grid .v em { font-style: normal; color: var(--red); }
.specbar-grid .k { font-size: 0.64rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--dim); margin-top: 4px; }

/* ============================================================
   PANEL / faceplate card base
   ============================================================ */
.panel {
  position: relative;
  background: linear-gradient(180deg, var(--panel-top), var(--panel-bot));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* ============================================================
   HERITAGE (physical Epicenter homage)
   ============================================================ */
.heritage { background: linear-gradient(180deg, transparent, rgba(143, 13, 16, 0.05)); }
.heritage-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; align-items: center; }

/* rack faceplate motif — decorative brand art */
.rack {
  position: relative;
  padding: 34px 30px;
  border-radius: 16px;
  background: linear-gradient(180deg, #17171a, #0c0c0e);
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
.rack::before, .rack::after {
  content: ""; position: absolute; top: 14px; width: 8px; height: 8px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #55555c, #17171a);
  box-shadow: inset 0 0 3px #000;
}
.rack::before { left: 14px; } .rack::after { right: 14px; }
.rack-top { display: flex; align-items: center; justify-content: space-between; margin: 6px 6px 24px; }
.rack-brand { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.14em; font-size: 0.9rem; }
.rack-brand em { font-style: normal; color: var(--red); }
.rack-model { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.2em; color: var(--dim); text-transform: uppercase; }
.rack-body { display: flex; align-items: center; gap: 28px; }
.rack-knob { position: relative; width: 128px; height: 128px; flex-shrink: 0; }
.rack-knob .knob { width: 100%; height: 100%; }
.rack-knob .knob::after { height: 34%; }
.rack-ticks { position: absolute; inset: -12px; }
.rack-ticks span {
  position: absolute; top: 50%; left: 50%; width: 2px; height: 7px;
  background: var(--faint); transform-origin: 50% 76px;
}
.rack-ticks span.on { background: var(--red); box-shadow: 0 0 5px rgba(225, 21, 21, 0.6); }
.rack-readout { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.rack-readout .big { font-family: var(--font-display); font-weight: 700; font-size: 2.4rem; letter-spacing: 0.04em; }
.rack-readout .lbl { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); }
.rack-leds { display: flex; gap: 5px; margin-top: 4px; }
.rack-leds i { width: 14px; height: 5px; border-radius: 2px; background: var(--faint); }
.rack-leds i.on { background: var(--red); box-shadow: 0 0 6px rgba(225, 21, 21, 0.7); }
.rack-slots { display: flex; gap: 8px; margin: 22px 6px 0; }
.rack-slots i { flex: 1; height: 4px; border-radius: 2px; background: rgba(255, 255, 255, 0.06); }
.rack-slots i:nth-child(-n+3) { background: var(--red); opacity: 0.8; }

.heritage-copy h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: 20px; }
.heritage-copy p { color: var(--muted); margin-bottom: 18px; font-size: 1.02rem; }
.heritage-copy .pull { color: var(--txt); font-weight: 500; }

/* ============================================================
   FEATURES
   ============================================================ */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.feature {
  position: relative; padding: 40px 34px;
  background: var(--bg);
  transition: background 0.3s ease;
}
.feature:hover { background: #0e0e10; }
.feature .fnum { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.14em; color: var(--faint); margin-bottom: 20px; display: block; }
.feature .ficon { width: 42px; height: 42px; margin-bottom: 20px; display: grid; place-items: center; border: 1px solid var(--line-2); border-radius: 10px; }
.feature .ficon svg { width: 22px; height: 22px; stroke: var(--red); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { font-size: 1rem; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.feature p { color: var(--muted); font-size: 0.9rem; }
.tag-full {
  font-family: var(--font-display); font-size: 0.56rem; font-weight: 700; letter-spacing: 0.12em;
  color: var(--red); border: 1px solid rgba(225, 21, 21, 0.4); background: rgba(225, 21, 21, 0.07);
  padding: 2px 8px; border-radius: 4px;
}

/* ============================================================
   LITE VS FULL
   ============================================================ */
.versions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 64px; }
.vcard { position: relative; padding: 42px 38px; border-radius: var(--r-lg); border: 1px solid var(--line); background: linear-gradient(180deg, var(--panel-top), var(--panel-bot)); display: flex; flex-direction: column; }
.vcard.full { border-color: rgba(225, 21, 21, 0.45); box-shadow: 0 0 0 1px rgba(225, 21, 21, 0.15), 0 30px 60px rgba(0, 0, 0, 0.4); }
.vflag { position: absolute; top: -12px; right: 30px; padding: 5px 14px; border-radius: 6px; background: linear-gradient(180deg, #ef2222, #c11212); color: #fff; font-family: var(--font-display); font-size: 0.64rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.vtier { font-family: var(--font-display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.vcard.full .vtier { color: var(--red); }
.vcard h3 { font-size: 1.4rem; margin-bottom: 6px; }
.vprice { font-family: var(--font-display); font-size: 0.86rem; color: var(--dim); margin-bottom: 22px; }
.vlist { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.vlist li { display: flex; gap: 12px; align-items: flex-start; font-size: 0.92rem; color: var(--muted); }
.vlist li::before {
  content: ""; flex-shrink: 0; width: 17px; height: 17px; margin-top: 3px; border-radius: 4px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23e11515' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center / 11px no-repeat, rgba(225, 21, 21, 0.08);
  border: 1px solid rgba(225, 21, 21, 0.3);
}
.vlist li.muted::before {
  background: rgba(255,255,255,0.03);
  border-color: var(--line-2);
}
.vcard .btn, .vcard .btn-ghost { margin-top: auto; justify-content: center; }

/* comparison table */
.table-wrap { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.cmp { width: 100%; border-collapse: collapse; min-width: 640px; }
.cmp th, .cmp td { padding: 17px 24px; text-align: left; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
.cmp thead th { font-family: var(--font-display); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); background: rgba(255, 255, 255, 0.02); }
.cmp thead th:nth-child(2), .cmp td:nth-child(2) { text-align: center; width: 22%; }
.cmp thead th:nth-child(3), .cmp td:nth-child(3) { text-align: center; width: 25%; }
.cmp thead th:nth-child(3) { color: var(--red); }
.cmp td:nth-child(3) { background: rgba(225, 21, 21, 0.04); }
.cmp tbody tr:hover { background: rgba(255, 255, 255, 0.02); }
.cmp tbody tr:last-child td { border-bottom: none; }
.cmp td:first-child { color: var(--txt); font-weight: 500; }
.cmp .sub { display: block; font-size: 0.76rem; color: var(--dim); font-weight: 400; margin-top: 2px; }
.m-yes { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 5px; background: rgba(225, 21, 21, 0.1); border: 1px solid rgba(225, 21, 21, 0.35); color: var(--red-hi); font-size: 0.7rem; font-weight: 700; }
.m-no { color: var(--faint); font-weight: 600; }
.m-part { display: inline-block; padding: 3px 11px; border-radius: 5px; font-family: var(--font-display); font-size: 0.7rem; font-weight: 600; color: var(--muted); background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line-2); white-space: nowrap; }
.m-full { display: inline-block; padding: 3px 11px; border-radius: 5px; font-family: var(--font-display); font-size: 0.7rem; font-weight: 600; color: var(--red-hi); background: rgba(225, 21, 21, 0.08); border: 1px solid rgba(225, 21, 21, 0.32); white-space: nowrap; }
.table-note { margin-top: 16px; font-size: 0.8rem; color: var(--dim); text-align: center; }

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step { padding: 30px 26px; border-radius: var(--r); border: 1px solid var(--line); background: linear-gradient(180deg, var(--panel-top), var(--panel-bot)); }
.step .snum { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--red); margin-bottom: 16px; display: block; }
.step h3 { font-size: 0.98rem; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: 0.88rem; }
.honest { margin-top: 40px; display: flex; gap: 18px; align-items: flex-start; padding: 26px 30px; border-radius: var(--r); border: 1px solid var(--line-2); background: rgba(255, 255, 255, 0.015); }
.honest svg { flex-shrink: 0; width: 24px; height: 24px; stroke: var(--red); fill: none; stroke-width: 1.7; margin-top: 2px; }
.honest h4 { font-size: 0.92rem; margin-bottom: 6px; }
.honest p { color: var(--muted); font-size: 0.9rem; }

/* ============================================================
   SCREENSHOTS — single gallery, real assets
   ============================================================ */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; max-width: 880px; margin-inline: auto; }
.shot {
  position: relative; border-radius: 26px; padding: 7px;
  background: linear-gradient(155deg, #262629, #0b0b0d 44%, #1b1b1e);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.5);
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease;
}
.shot-inner { position: relative; border-radius: 20px; overflow: hidden; aspect-ratio: 9 / 19.5; background: #0a0a0b; }
.shot:hover { transform: translateY(-9px); box-shadow: 0 32px 64px rgba(0, 0, 0, 0.6), 0 0 30px rgba(225, 21, 21, 0.14); }
.shots .shot:nth-child(3n+2) { transform: translateY(28px); }
.shots .shot:nth-child(3n+2):hover { transform: translateY(18px); }
.shot .slot-ph .knob { width: 46px; height: 46px; }
.shot .slot-ph b { font-size: 0.74rem; }
.shot .slot-ph small { font-size: 0.6rem; }

/* ============================================================
   AUDIENCE
   ============================================================ */
.aud-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.aud { padding: 28px 26px; border-radius: var(--r); border: 1px solid var(--line); background: var(--bg-2); display: flex; gap: 16px; align-items: flex-start; transition: border-color 0.3s ease, transform 0.3s ease; }
.aud:hover { border-color: rgba(225, 21, 21, 0.35); transform: translateY(-3px); }
.aud .aicon { flex-shrink: 0; width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; border: 1px solid var(--line-2); }
.aud .aicon svg { width: 20px; height: 20px; stroke: var(--red); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.aud h3 { font-size: 0.92rem; margin-bottom: 4px; }
.aud p { color: var(--muted); font-size: 0.85rem; }

/* ============================================================
   CTA
   ============================================================ */
.cta { position: relative; padding: 84px 40px; border-radius: var(--r-lg); text-align: center; overflow: hidden; border: 1px solid rgba(225, 21, 21, 0.35); background: linear-gradient(180deg, #141012, #0a0809); }
.cta::before { content: ""; position: absolute; inset: -40% -10%; background: radial-gradient(40% 50% at 50% 30%, rgba(225, 21, 21, 0.16), transparent 70%); pointer-events: none; }
.cta h2 { position: relative; font-size: clamp(1.6rem, 3.4vw, 2.4rem); max-width: 680px; margin: 0 auto 16px; }
.cta p { position: relative; color: var(--muted); max-width: 540px; margin: 0 auto 34px; font-size: 1.02rem; }
.cta .store-btns { position: relative; justify-content: center; }
.cta .cta-sub { position: relative; margin-top: 20px; font-size: 0.84rem; color: var(--dim); }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 800px; margin-inline: auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--r); background: var(--bg-2); overflow: hidden; transition: border-color 0.3s ease; }
.faq-item.open { border-color: rgba(225, 21, 21, 0.4); }
.faq-q { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 22px 26px; text-align: left; font-family: var(--font-display); font-weight: 600; font-size: 0.96rem; }
.faq-q .fi { flex-shrink: 0; width: 26px; height: 26px; border-radius: 6px; border: 1px solid var(--line-2); display: grid; place-items: center; transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.3s ease, border-color 0.3s ease; }
.faq-q .fi::before { content: "+"; font-size: 1rem; color: var(--muted); line-height: 1; }
.faq-item.open .fi { transform: rotate(45deg); background: var(--red); border-color: transparent; }
.faq-item.open .fi::before { color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); }
.faq-a p { padding: 0 26px 22px; color: var(--muted); font-size: 0.92rem; }
.faq-a a { color: var(--red-hi); }

/* ============================================================
   FOOTER
   ============================================================ */
footer { border-top: 1px solid var(--line); padding: 68px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 44px; margin-bottom: 50px; }
.footer-brand .brand-logo { width: 168px; height: auto; margin-bottom: 18px; }
.footer-brand p { color: var(--muted); font-size: 0.88rem; max-width: 300px; }
.footer-col h4 { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.18em; color: var(--dim); margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: 0.88rem; color: var(--muted); transition: color 0.25s ease; }
.footer-col a:hover { color: var(--red-hi); }
.footer-col .soon-tag { font-size: 0.7rem; color: var(--dim); border: 1px solid var(--line); border-radius: 100px; padding: 1px 8px; margin-left: 6px; }
.footer-bottom { border-top: 1px solid var(--line); padding-top: 26px; display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; }
.footer-bottom p { font-size: 0.78rem; color: var(--dim); }
.footer-bottom .tm { font-size: 0.7rem; max-width: 520px; }

/* ============================================================
   SUBPAGES
   ============================================================ */
.doc-page { padding: calc(var(--nav-h) + 66px) 0 100px; min-height: 80vh; }
.doc { max-width: 760px; margin-inline: auto; }
.doc h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 14px; }
.doc .doc-meta { display: inline-block; padding: 6px 15px; border-radius: 6px; border: 1px solid var(--line-2); background: rgba(255, 255, 255, 0.02); font-size: 0.78rem; color: var(--muted); margin-bottom: 42px; }
.doc h2 { font-size: 1.12rem; margin: 42px 0 15px; }
.doc h3 { font-size: 0.96rem; margin: 26px 0 9px; }
.doc p, .doc li { color: var(--muted); font-size: 0.96rem; }
.doc p { margin-bottom: 15px; }
.doc ul { list-style: none; margin: 0 0 18px; display: flex; flex-direction: column; gap: 9px; }
.doc ul li { padding-left: 20px; position: relative; }
.doc ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 2px; background: var(--red); }
.doc a:not(.btn):not(.btn-ghost) { color: var(--red-hi); }
.doc a:not(.btn):not(.btn-ghost):hover { text-decoration: underline; }
.callout { display: flex; gap: 15px; align-items: flex-start; padding: 20px 24px; border-radius: var(--r); border: 1px solid rgba(225, 21, 21, 0.3); background: rgba(225, 21, 21, 0.05); margin: 24px 0; }
.callout.info { border-color: var(--line-2); background: rgba(255, 255, 255, 0.02); }
.callout p { margin: 0; font-size: 0.88rem; }
.callout strong { color: var(--txt); }
.support-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 42px 0; }
.support-card { padding: 30px 28px; border-radius: var(--r); border: 1px solid var(--line); background: var(--bg-2); transition: border-color 0.3s ease, transform 0.3s ease; }
.support-card:hover { border-color: var(--line-2); transform: translateY(-3px); }
.support-card h3 { font-size: 0.98rem; margin: 0 0 10px; }
.support-card p { font-size: 0.88rem; margin-bottom: 16px; }
.support-card .btn-ghost { padding: 10px 18px; font-size: 0.8rem; }
.trouble-list { display: flex; flex-direction: column; gap: 12px; margin: 24px 0; }
.trouble-item { padding: 22px 26px; border-radius: var(--r); border: 1px solid var(--line); background: var(--bg-2); }
.trouble-item h3 { margin: 0 0 8px; font-size: 0.94rem; }
.trouble-item p { margin: 0; font-size: 0.9rem; }
.err-page { min-height: 100svh; display: grid; place-items: center; text-align: center; padding: 40px 24px; }
.err-page h1 { font-size: clamp(4rem, 14vw, 8rem); color: var(--red); }
.err-page p { color: var(--muted); margin: 14px 0 32px; }

/* ============================================================
   REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1); transition-delay: var(--d, 0s); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .features-grid, .aud-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .heritage-grid { grid-template-columns: 1fr; gap: 44px; }
  .specbar-grid { grid-template-columns: repeat(3, 1fr); }
  .specbar-grid div:nth-child(4) { border-left: none; }
}
@media (max-width: 860px) {
  section { padding: 84px 0; }
  .hero { min-height: auto; padding-bottom: 70px; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { order: 2; }
  .phone-frame { width: 280px; }
  .versions-grid { grid-template-columns: 1fr; }
  .vcard.full { order: -1; }
  .shots { grid-template-columns: repeat(2, 1fr); gap: 18px; max-width: 460px; }
  .shots .shot { transform: none; }
  .shots .shot:nth-child(even) { transform: translateY(18px); }
  .shots .shot:nth-child(even):hover { transform: translateY(10px); }
  .nav-burger { display: flex; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(6, 6, 6, 0.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line); padding: 12px 24px 24px;
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.35s ease, visibility 0.35s;
  }
  .nav.open .nav-links { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-links a:not(.btn) { padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .nav-links a:not(.btn)::after { display: none; }
  .nav-links .btn { margin-top: 16px; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 36px); }
  .steps, .features-grid, .aud-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .specbar-grid { grid-template-columns: 1fr 1fr; }
  .specbar-grid div { border-left: none; border-top: 1px solid var(--line); }
  .specbar-grid div:nth-child(-n+2) { border-top: none; }
  .store-btns { flex-direction: column; align-items: stretch; }
  .store-btn { justify-content: center; }
  .spec-list { gap: 20px; }
  .shots { grid-template-columns: 1fr; max-width: 260px; }
  .shots .shot, .shots .shot:nth-child(even) { transform: none; }
  .rack-body { flex-direction: column; text-align: center; }
  .cta { padding: 60px 24px; }
  .support-grid { grid-template-columns: 1fr; }
  .cmp th, .cmp td { padding: 14px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .preloader { display: none; }
  body.preloading { overflow: auto; }
}

/* ============================================================
   BILINGÜE ES/EN — oculta el idioma inactivo según <html lang>
   ============================================================ */
html[lang="en"] [data-lang="es"],
html[lang="es"] [data-lang="en"] { display: none !important; }

/* ============================================================
   ACCESIBILIDAD
   ============================================================ */
.skip-link {
  position: fixed; top: 8px; left: 8px; z-index: 2000;
  transform: translateY(-150%);
  background: var(--red); color: #fff;
  padding: 10px 18px; border-radius: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.85rem;
  transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); outline: 2px solid #fff; }
:focus-visible { outline: 2px solid var(--red-hi); outline-offset: 3px; border-radius: 4px; }

/* ============================================================
   LANGUAGE TOGGLE
   ============================================================ */
.lang-toggle {
  font-family: var(--font-display); font-weight: 600; font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--txt);
  border: 1px solid var(--line-2);
  border-radius: 8px;
  padding: 7px 12px;
  line-height: 1;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.lang-toggle:hover { border-color: rgba(242, 13, 30, 0.55); color: var(--red-hi); }
.nav-mobile-actions { display: none; align-items: center; gap: 10px; }

/* ============================================================
   iOS "coming soon" button
   ============================================================ */
.store-btn.ios-soon { position: relative; cursor: default; }
.store-btn.ios-soon .st small { color: var(--dim); }
.store-btn.ios-soon:hover { transform: translateY(-2px); border-color: var(--line-2); }
.soon-ribbon {
  position: absolute; top: -9px; right: 10px;
  font-family: var(--font-display); font-weight: 700;
  font-size: 0.56rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: #fff; background: linear-gradient(180deg, #ef2222, #c11212);
  padding: 3px 9px; border-radius: 5px;
  box-shadow: 0 4px 12px rgba(180, 14, 20, 0.4);
}
.store-btn.ios-soon.is-shaking { animation: iosShake 0.4s ease; }
@keyframes iosShake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-3px)} 75%{transform:translateX(3px)} }
.foot-soon { font-size: 0.88rem; color: var(--dim); }

/* ============================================================
   Small helpers
   ============================================================ */
.micro { font-size: 0.86rem !important; color: var(--dim) !important; }
.honest-line {
  max-width: 760px; margin: 40px auto 0; text-align: center;
  font-size: 0.95rem; color: var(--muted);
  padding: 20px 26px; border: 1px solid var(--line-2); border-radius: var(--r);
  background: rgba(255, 255, 255, 0.015);
}

/* ============================================================
   NO ES SOLO UN BASS BOOSTER
   ============================================================ */
.diff-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.diff-card {
  padding: 32px 28px; border-radius: var(--r-lg);
  border: 1px solid var(--line); background: linear-gradient(180deg, var(--panel-top), var(--panel-bot));
}
.diff-card.feature { border-color: rgba(242, 13, 30, 0.45); box-shadow: 0 0 0 1px rgba(242, 13, 30, 0.14), var(--shadow); }
.diff-tag {
  display: inline-block; margin-bottom: 14px;
  font-family: var(--font-display); font-weight: 700; font-size: 0.72rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}
.diff-card.feature .diff-tag { color: var(--red-hi); }
.diff-card p { color: var(--muted); font-size: 0.92rem; }

/* ============================================================
   CUÁNDO SE NOTA MÁS / MENOS
   ============================================================ */
.signal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.signal {
  padding: 34px 32px; border-radius: var(--r-lg);
  border: 1px solid var(--line); background: linear-gradient(180deg, var(--panel-top), var(--panel-bot));
}
.signal.pos { border-color: rgba(242, 13, 30, 0.32); }
.signal h3 { font-size: 1.05rem; margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.signal h3::before {
  content: ""; width: 20px; height: 20px; border-radius: 6px; flex-shrink: 0;
  background: center / 12px no-repeat, rgba(255, 255, 255, 0.04); border: 1px solid var(--line-2);
}
.signal.pos h3::before {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ff4a3d' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center / 12px no-repeat, rgba(242, 13, 30, 0.08);
  border-color: rgba(242, 13, 30, 0.3);
}
.signal.neg h3::before {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235c5c64' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M6 12h12'/%3E%3C/svg%3E") center / 12px no-repeat, rgba(255, 255, 255, 0.03);
}
.signal ul { display: flex; flex-direction: column; gap: 12px; }
.signal li { color: var(--muted); font-size: 0.92rem; padding-left: 18px; position: relative; }
.signal li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; }
.signal.pos li::before { background: var(--red); }
.signal.neg li::before { background: var(--faint); }

/* ============================================================
   HI-RES / CALIDAD
   ============================================================ */
.hires-sec { background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.012)); }
.hires-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; align-items: center; }
.hires-badge-wrap { display: flex; justify-content: center; }
.hires-logo {
  width: 220px; height: auto;
  filter: drop-shadow(0 12px 40px rgba(0, 0, 0, 0.5));
}
.hires-copy h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); margin-bottom: 18px; }
.hires-copy p { color: var(--muted); margin-bottom: 14px; font-size: 1.02rem; }

/* ============================================================
   PRIVACIDAD LOCAL
   ============================================================ */
.privacy-sec { background: linear-gradient(180deg, transparent, rgba(242, 13, 30, 0.04)); }
.privacy-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  max-width: 940px; margin: 0 auto;
}
.privacy-grid li {
  display: flex; align-items: center; gap: 12px;
  padding: 20px 22px; border-radius: var(--r);
  border: 1px solid var(--line); background: var(--bg-2);
  color: var(--txt); font-family: var(--font-display); font-weight: 600; font-size: 0.9rem;
}
.privacy-grid li::before {
  content: ""; flex-shrink: 0; width: 22px; height: 22px; border-radius: 6px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ff4a3d' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center / 13px no-repeat, rgba(242, 13, 30, 0.08);
  border: 1px solid rgba(242, 13, 30, 0.3);
}
.privacy-note { text-align: center; margin-top: 26px; color: var(--muted); font-size: 0.9rem; }
.privacy-note a { color: var(--red-hi); }

/* ============================================================
   FAQ — native <details>/<summary> (accesible por teclado)
   ============================================================ */
details.faq-item { border: 1px solid var(--line); border-radius: var(--r); background: var(--bg-2); overflow: hidden; }
details.faq-item + details.faq-item { margin-top: 12px; }
details.faq-item[open] { border-color: rgba(242, 13, 30, 0.4); }
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 26px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.96rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .fi {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 6px;
  border: 1px solid var(--line-2); display: grid; place-items: center;
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.3s ease, border-color 0.3s ease;
}
.faq-item summary .fi::before { content: "+"; font-size: 1rem; color: var(--muted); line-height: 1; }
.faq-item[open] summary .fi { transform: rotate(45deg); background: var(--red); border-color: transparent; }
.faq-item[open] summary .fi::before { color: #fff; }
.faq-item .faq-a { max-height: none; overflow: visible; }
.faq-item .faq-a p { padding: 0 26px 22px; color: var(--muted); font-size: 0.92rem; }
.faq-item .faq-a a { color: var(--red-hi); }

/* figure reset for screenshots */
figure.shot { margin: 0; }

/* ============================================================
   RESPONSIVE — nav actions + table → cards
   ============================================================ */
@media (max-width: 860px) {
  .nav-mobile-actions { display: flex; }
  .nav-links .lang-toggle { display: none; }
  .diff-grid { grid-template-columns: 1fr; }
  .signal-grid { grid-template-columns: 1fr; }
  .hires-grid { grid-template-columns: 1fr; gap: 36px; text-align: center; }
  .hires-badge-wrap { order: -1; }
  .privacy-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .privacy-grid { grid-template-columns: 1fr; }
  /* Tabla comparativa → tarjetas */
  .cmp, .cmp tbody, .cmp tr, .cmp td { display: block; width: 100%; }
  .cmp { min-width: 0; }
  .cmp thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .cmp tr {
    border: 1px solid var(--line); border-radius: 12px;
    margin-bottom: 12px; padding: 6px 0; background: var(--bg-2);
  }
  .cmp td { border: none; padding: 10px 18px; }
  .cmp td:first-child {
    font-family: var(--font-display); font-weight: 700; font-size: 0.9rem;
    border-bottom: 1px solid var(--line); padding-bottom: 12px; margin-bottom: 4px;
  }
  .cmp td:not(:first-child) { display: flex; align-items: center; justify-content: space-between; gap: 16px; text-align: right; }
  .cmp td:not(:first-child)::before {
    content: attr(data-th); color: var(--dim);
    font-family: var(--font-display); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.06em;
  }
  .cmp td:nth-child(3) { background: transparent; }
}