/* ==========================================================================
   UnSpeed · Custom Kb
   Concepto: un teclado vivo como protagonista; todo lo demás es oscuro,
   calmado y en azul eléctrico. Una sola apuesta: las teclas reaccionan.
   ========================================================================== */
:root {
  --bg: #060912;
  --surface: #0c1224;
  --surface-2: #121a33;
  --line: #1d2850;
  --fg: #eaf0ff;
  --muted: #8e9bbd;
  --blue: #2a6bff;      /* azul eléctrico */
  --cyan: #19d9ff;      /* el del logo */
  --glow: rgba(42, 107, 255, 0.55);

  --font-display: "Unbounded", "Arial Black", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  color-scheme: dark;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Banda de seguridad superior en móviles con muesca */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  background: var(--bg);
  z-index: 60;
}

img { max-width: 100%; }
h1, h2, h3, p { margin: 0; }
::selection { background: var(--blue); color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.wrap {
  width: 100%;
  max-width: 1160px;
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* ---------- Tipografía ---------- */
.eyebrow {
  font: 500 0.75rem var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

h2 {
  font: 700 clamp(1.6rem, 3.4vw, 2.5rem) / 1.12 var(--font-display);
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h3 {
  font: 700 1.1rem / 1.25 var(--font-display);
  letter-spacing: -0.01em;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font: 700 0.95rem / 1 var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 30px -10px var(--glow);
}
.btn-primary:hover { background: #3b78ff; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: #2b3a72;
}
.btn-ghost:hover { border-color: var(--blue); background: rgba(42, 107, 255, 0.1); }
.btn-sm { padding: 10px 16px; font-size: 0.85rem; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: rgba(6, 9, 18, 0.8);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 12px;
}
.brand { display: block; line-height: 0; }
.brand img { height: 36px; width: auto; display: block; }

.nav { display: flex; gap: 28px; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav a:hover { color: var(--fg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(40px, 7vw, 88px) 0;
  background: radial-gradient(60% 55% at 85% 0%, rgba(42, 107, 255, 0.28), transparent 70%);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
}
.hero-copy { display: grid; gap: 20px; justify-items: start; min-width: 0; }
.hero h1 {
  font: 700 clamp(2.1rem, 5.4vw, 4rem) / 1.05 var(--font-display);
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.hl { color: var(--cyan); }
.lead {
  max-width: 56ch;
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  color: var(--muted);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.hero-mark {
  width: clamp(150px, 20vw, 260px);
  height: auto;
  filter: drop-shadow(0 0 40px rgba(25, 217, 255, 0.3));
}

/* ---------- Teclado (hero, miniaturas y software) ---------- */
.kb {
  --units: 15;
  display: flex;
  flex-direction: column;
  gap: var(--kg, 5px);
}
.kb-row { display: flex; gap: var(--kg, 5px); }

.key {
  position: relative;
  flex: 0 0 calc(var(--w, 1) * (100% + var(--kg, 5px)) / var(--units) - var(--kg, 5px));
  min-width: 0;
  height: var(--kh, 40px);
  margin: 0;
  padding: 0.4em 0.5em;
  display: flex;
  align-items: flex-start;
  border: 1px solid #2b3a72;
  border-radius: clamp(4px, 0.8vw, 8px);
  background: linear-gradient(180deg, #1d2850 0%, #141d3b 100%);
  box-shadow: 0 3px 0 #070b18, inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color: #9fb0e0;
  font: 500 clamp(0.5rem, 0.95vw, 0.74rem) / 1 var(--font-mono);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: transform 0.28s, background 0.3s, box-shadow 0.3s, border-color 0.3s, color 0.3s;
}
.key > span {
  display: block;
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  pointer-events: none;
}
.key--accent {
  background: linear-gradient(180deg, #3b7bff 0%, #2054d8 100%);
  border-color: #5b92ff;
  color: #fff;
}

.kb-stage { margin-top: clamp(36px, 5vw, 56px); padding-bottom: clamp(40px, 6vw, 72px); }

.kb-case {
  --kh: clamp(28px, 4.6vw, 56px);
  --kg: clamp(3px, 0.6vw, 7px);
  padding: clamp(10px, 1.6vw, 18px);
  border: 1px solid #243061;
  border-radius: 22px;
  background: linear-gradient(180deg, #141d3a, #0a1020);
  box-shadow: 0 40px 90px -40px var(--glow), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.kb-case .key { cursor: pointer; }
.kb-case .key.is-down {
  transform: translateY(2px);
  transition-duration: 0.06s, 0.1s, 0.1s, 0.1s, 0.1s;
  background: linear-gradient(180deg, #2d6bff, #1a45c4);
  border-color: var(--cyan);
  box-shadow: 0 1px 0 #070b18, 0 0 24px 2px var(--glow);
  color: #fff;
}
.kb-case .key--accent.is-down {
  background: linear-gradient(180deg, #19d9ff, #0fa0e0);
  color: #04111f;
}

.kb-readout {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: 16px;
  font: 400 0.78rem var(--font-mono);
  color: var(--muted);
}
.kb-readout b { color: var(--cyan); font-weight: 500; margin-left: 6px; }

/* ---------- Secciones ---------- */
.section { padding-block: clamp(56px, 9vw, 104px); scroll-margin-top: 64px; }
.section--soft { background: #080d1b; border-block: 1px solid var(--line); }
.section-head { display: grid; gap: 14px; max-width: 640px; margin-bottom: clamp(28px, 4vw, 48px); }
.section-head p:last-child { color: var(--muted); max-width: 56ch; }

/* ---------- Tarjetas de teclados ---------- */
.cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}
@media (min-width: 640px) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1180px) {
  .cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  transition: border-color 0.25s, transform 0.25s;
}
.card:hover { border-color: #2f4bb0; transform: translateY(-3px); }
.card-body { display: grid; gap: 10px; flex: 1; align-content: start; }
.card-body p { color: var(--muted); font-size: 0.95rem; }
.card-foot { display: flex; flex-direction: column; align-items: stretch; gap: 14px; }
.card-actions { display: flex; gap: 8px; }
.card-actions .btn {
  padding: 11px 14px;
  font-size: 0.82rem;
  line-height: 1.15;
  text-align: center;
}
.card-actions .btn-primary { flex: 1 1 auto; }
.price { font: 700 1.35rem / 1 var(--font-display); }
.price span {
  margin-right: 8px;
  font: 400 0.72rem var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.mini {
  --kh: 13px;
  --kg: 3px;
  display: flex;
  align-items: center;
  min-height: 150px;
  padding: 16px;
  border: 1px solid #243061;
  border-radius: 14px;
  background: linear-gradient(180deg, #141d3a, #0a1020);
}
.mini .kb { width: 100%; }
.mini .key--gap { visibility: hidden; }
.mini .key {
  padding: 0;
  border-radius: 3px;
  box-shadow: 0 1px 0 #070b18;
}
.finish-silver .key {
  background: linear-gradient(180deg, #d3dcf0, #9aa8cc);
  border-color: #e6ecf9;
}
.finish-silver .key--accent {
  background: linear-gradient(180deg, #3b7bff, #2054d8);
  border-color: #5b92ff;
}
.finish-blue .key {
  background: linear-gradient(180deg, #2f6fff, #1a45c4);
  border-color: #5b92ff;
}
.finish-blue .key--accent {
  background: linear-gradient(180deg, #19d9ff, #0fa0e0);
  border-color: #7fe9ff;
}

.specs { margin: 0; display: grid; }
.specs > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
}
.specs dt { color: var(--muted); font-size: 0.85rem; }
.specs dd { margin: 0; font: 500 0.82rem var(--font-mono); text-align: right; }

/* ---------- Configurador ---------- */
.builder {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(20px, 3.5vw, 40px);
  border: 1px solid var(--line);
  border-radius: 26px;
  background: linear-gradient(180deg, var(--surface), #090e1d);
}
.builder-head { display: grid; gap: 6px; margin-bottom: 28px; }
.builder-head p { color: var(--muted); max-width: 56ch; }
.builder-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;   /* antes: start */
}
.builder-opts { display: grid; gap: 22px; min-width: 0; }
.builder-out { display: grid; gap: 18px; min-width: 0; }

fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
legend, .field-label {
  display: block;
  padding: 0;
  margin-bottom: 10px;
  font: 500 0.72rem var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; cursor: pointer; }
.chip input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.chip span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.9rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.chip:hover span { color: var(--fg); }
.chip input:checked + span {
  border-color: var(--blue);
  background: rgba(42, 107, 255, 0.18);
  color: #fff;
  box-shadow: inset 0 0 0 1px var(--blue);
}
.chip input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }
.swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--sw);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25);
}

/* ---------- Software ---------- */
.app {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  box-shadow: 0 40px 80px -50px var(--glow);
}
.app-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font: 400 0.78rem var(--font-mono);
  color: var(--muted);
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: #26305a; }
.app-bar span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.app-bar .tag { flex: none; margin-left: auto; color: var(--cyan); }
.app-body { display: grid; grid-template-columns: minmax(0, 1fr) 260px; }
.app-main { display: flex; align-items: center; min-width: 0; padding: clamp(16px, 3vw, 32px); }
.app-kb {
  --kh: clamp(24px, 4vw, 40px);
  --kg: 4px;
  --bright: 0.7;
  width: 100%;
}
.app-kb .key { cursor: pointer; }
.app-kb .key[aria-pressed="true"] {
  border-color: var(--cyan);
  color: #fff;
  box-shadow: 0 3px 0 #070b18, 0 0 0 2px rgba(25, 217, 255, 0.5);
}
.app-kb .key[data-mapped]::before {
  content: "";
  position: absolute;
  top: 4px;
  right: 4px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
}
.app-kb .key::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 0 calc(var(--bright) * 18px) calc(var(--bright) * 2px) rgba(25, 217, 255, 0.9);
  opacity: 0.7;
  pointer-events: none;
}
.fx-static .key::after { opacity: 0.75; }
.fx-breathe .key::after { animation: breathe 3.4s ease-in-out infinite; }
.fx-wave .key::after {
  animation: wave 2.6s ease-in-out infinite;
  animation-delay: calc(var(--c) * -0.14s);
}
@keyframes breathe { 0%, 100% { opacity: 0.12; } 50% { opacity: 1; } }
@keyframes wave { 0%, 100% { opacity: 0.08; } 35% { opacity: 1; } 60% { opacity: 0.1; } }

.app-side {
  display: grid;
  align-content: start;
  gap: 24px;
  padding: 20px;
  border-left: 1px solid var(--line);
  background: #0a1020;
}
.side-block { display: grid; gap: 10px; }
.side-block .field-label { margin-bottom: 0; }
.key-name { font: 700 1.5rem / 1.1 var(--font-display); min-height: 1.1em; }
.range-label { margin-top: 8px; }
.range-label b { color: var(--cyan); font-weight: 500; margin-left: 6px; }

select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--fg);
  font: inherit;
}
select:disabled { opacity: 0.5; }
input[type="range"] { width: 100%; accent-color: var(--blue); }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 28px;
  margin-top: clamp(28px, 4vw, 44px);
}
.feature { display: grid; gap: 8px; align-content: start; padding-top: 14px; border-top: 1px solid var(--line); }
.feature p { color: var(--muted); font-size: 0.95rem; }
.software-cta { margin-top: clamp(28px, 4vw, 44px); }

/* ---------- Contacto ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 20px;
}
.contact-card {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 14px;
  min-width: 0;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
}
.contact-card p { color: var(--muted); }
.icon-tile {
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-2);
}
.icon-tile img { width: 36px; height: 36px; display: block; }
.copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  font: 500 1.05rem var(--font-mono);
  color: var(--fg);
}

/* ---------- Pie ---------- */
.site-footer { border-top: 1px solid var(--line); }
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  padding-block: 32px;
}
.site-footer img { height: 28px; width: auto; display: block; }
.site-footer p { color: var(--muted); font-size: 0.9rem; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .builder-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 820px) {
  .app-body { grid-template-columns: minmax(0, 1fr); }
  .app-side { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 800px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-mark { display: none; }
}
@media (max-width: 640px) {
  .nav { display: none; }
  .site-footer .nav { display: flex; gap: 20px; }
  .key--long > span { display: none; }
  .kb-readout span:first-child { flex-basis: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fx-breathe .key::after, .fx-wave .key::after { animation: none; opacity: 0.8; }
  .card, .btn, .key { transition: none; }
}