/* ==========================================================================
   Luper Textos — exploración de diseño (sección provisional, no es un
   proyecto en producción). Mismas fuentes y base oscura que la app y la
   landing de Luper, pero con acento rojo propio: esta línea de producto
   son carteles LED reales de una sola luz, normalmente roja.
   ========================================================================== */

:root {
  --background: #0b0d12;
  --background-raise: #100b0b;
  --foreground: #edeef2;
  --muted-foreground: rgba(237, 238, 242, 0.62);
  --card: #14161d;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --accent: #ff3b26;
  --accent-soft: rgba(255, 59, 38, 0.14);
  --accent-foreground: #ffffff;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;

  --font-display: "Orbitron", sans-serif;
  --font-sans: "Rajdhani", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.01em; margin: 0; }
p { margin: 0; }

.container {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: 24px;
}

@media (min-width: 768px) {
  .container { padding-inline: 40px; }
}

.mono { font-family: var(--font-mono); }

section { padding-block: clamp(56px, 8vw, 100px); }

/* -------------------------------------------------------------------- */
/* Nav                                                                   */
/* -------------------------------------------------------------------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 20px;
}

.nav__logo { display: flex; align-items: center; gap: 10px; }
.nav__logo img { height: 20px; filter: invert(1) brightness(2); }
.nav__badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-soft);
  background: var(--accent-soft);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
}

.nav__back {
  font-size: 14px;
  color: var(--muted-foreground);
}
.nav__back:hover { color: var(--foreground); }

/* -------------------------------------------------------------------- */
/* Hero                                                                  */
/* -------------------------------------------------------------------- */

.hero {
  padding-top: clamp(24px, 5vw, 48px);
  text-align: left;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin-top: 14px;
  font-size: clamp(2rem, 4.6vw, 3rem);
  line-height: 1.16;
  max-width: 780px;
}

.hero p {
  margin-top: 18px;
  max-width: 56ch;
  color: var(--muted-foreground);
  font-size: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 24px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s var(--ease-out);
}
.btn:active { transform: scale(0.98); }
.btn--accent { background: var(--accent); color: var(--accent-foreground); box-shadow: 0 8px 24px rgba(255, 59, 38, 0.28); }
.btn--accent:hover { transform: translateY(-1px); }

/* -------------------------------------------------------------------- */
/* Reveal                                                                */
/* -------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* -------------------------------------------------------------------- */
/* Simulador                                                             */
/* -------------------------------------------------------------------- */

.simulator {
  margin-top: 32px;
}

.sign-mockup {
  display: inline-block;
  padding: 22px;
  border-radius: 14px;
  background: linear-gradient(160deg, #1a1a1a, #050505);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.sign-mockup__screws {
  display: flex;
  justify-content: space-between;
  padding-inline: 4px;
  margin-bottom: 10px;
}

.sign-mockup__screw {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #666, #111);
}

#sign-canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  background: #0a0000;
}

.simulator__controls {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.simulator__field {
  flex: 1 1 260px;
}

.simulator__field label {
  display: block;
  font-size: 13px;
  color: var(--muted-foreground);
  margin-bottom: 6px;
}

.simulator__field input[type="text"] {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--foreground);
  font-family: var(--font-sans);
  font-size: 16px;
  padding: 12px 14px;
}

.simulator__field input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
}

.simulator__speed {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 160px;
}

.simulator__note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted-foreground);
}

/* -------------------------------------------------------------------- */
/* Cómo funciona                                                        */
/* -------------------------------------------------------------------- */

.steps {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 768px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}

.step {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 24px;
}

.step__index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  opacity: 0.8;
}

.step__title {
  margin-top: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
}

.step__body {
  margin-top: 8px;
  font-size: 15px;
  color: var(--muted-foreground);
}

/* -------------------------------------------------------------------- */
/* Casos de uso                                                         */
/* -------------------------------------------------------------------- */

.usecases {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 768px) {
  .usecases { grid-template-columns: repeat(4, 1fr); }
}

.usecase {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px;
  text-align: center;
  font-size: 14px;
  color: var(--muted-foreground);
}

.usecase strong {
  display: block;
  color: var(--foreground);
  font-family: var(--font-display);
  font-size: 14px;
  margin-bottom: 4px;
}

/* -------------------------------------------------------------------- */
/* Footer                                                                */
/* -------------------------------------------------------------------- */

.footer {
  border-top: 1px solid var(--border);
  padding-block: 32px;
  font-size: 13px;
  color: var(--muted-foreground);
  text-align: center;
}