/**
 * Galería de demos · estilos
 * Páginas web para negocios de Demon Trail
 *
 * Índice
 *   1. Tokens de diseño
 *   2. Base
 *   3. Componentes compartidos (títulos, botones)
 *   4. Navegación
 *   5. Portada
 *   6. Galería de demos
 *   7. Cómo trabajamos
 *   8. Contacto
 *   9. Pie de página
 *  10. Adaptación a pantallas chicas
 *
 * © 2026 Demon Trail. Todos los derechos reservados.
 */

/* ==========================================================================
   1. Tokens de diseño
   ========================================================================== */

:root {
  /* Tema oscuro de la marca: el rojo es el único color de acento */
  --background: #0c0c0e;
  --card: #151518;
  --line: #26262b;
  --text: #f3f3f1;
  --muted: #9c9ca5;
  --red: #e5343a;
  --red-dark: #b7242a;
}

/* ==========================================================================
   2. Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font:
    16px/1.6 Inter,
    system-ui,
    sans-serif;
  color: var(--text);
  background: var(--background);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

.wrap {
  max-width: 1240px;
  margin: auto;
  padding: 0 22px;
}

section {
  padding: 70px 0;
}

/* ==========================================================================
   3. Componentes compartidos
   ========================================================================== */

/* El nombre de cada demo no es un encabezado, pero se compone con la misma tipografía */
h1,
h2,
h3,
.demo-name {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--red);
  color: #fff;
  border: 0;
  border-radius: 12px;
  padding: 14px 22px;
  font: 600 16px Inter;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--red-dark);
}

/* Botón secundario: sin relleno, con el contorno dibujado como sombra interior */
.btn.ghost {
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--line);
}

.btn.ghost:hover {
  box-shadow: inset 0 0 0 1px var(--text);
}

/* ==========================================================================
   4. Navegación
   ========================================================================== */

nav .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 700 20px "Space Grotesk";
  text-decoration: none;
}

/* Monograma "DT" dentro de un cuadro rojo */
.logo i {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--red);
  display: grid;
  place-items: center;
  font-style: normal;
  font-size: 16px;
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}

.nav-link:hover {
  color: var(--text);
}

/* ==========================================================================
   5. Portada
   ========================================================================== */

.hero {
  padding: 70px 0 50px;
  position: relative;
  overflow: hidden;
}

/* Resplandor rojo que asoma por la esquina superior derecha */
.hero::before {
  content: "";
  position: absolute;
  width: 700px;
  height: 700px;
  right: -200px;
  top: -300px;
  background: radial-gradient(circle, rgba(229, 52, 58, 0.22), transparent 60%);
  pointer-events: none;
}

.pill {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 14px;
  color: var(--muted);
}

.pill b {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3ddc84;
}

/* El título, el texto y los botones llevan position: relative para pintarse sobre el resplandor */
.hero h1 {
  font-size: clamp(44px, 7vw, 96px);
  line-height: 0.98;
  margin: 22px 0;
  max-width: 15ch;
  position: relative;
}

.hero h1 span {
  color: var(--red);
}

.hero .lead {
  font-size: 20px;
  color: var(--muted);
  max-width: 54ch;
  position: relative;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
  position: relative;
}

/* Ventajas: el fondo del contenedor se ve por el gap de 1px y hace de línea divisoria */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 56px;
}

.features div {
  background: var(--background);
  padding: 22px;
}

.features b {
  display: block;
  font: 600 17px "Space Grotesk";
  margin-bottom: 4px;
}

.features span {
  color: var(--muted);
  font-size: 14px;
}

/* ==========================================================================
   6. Galería de demos
   ========================================================================== */

.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filters button {
  font: 500 14px Inter;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
}

.filters button[aria-pressed="true"] {
  background: var(--text);
  color: var(--background);
  border-color: var(--text);
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* Toda la tarjeta es el enlace a la demo */
.demo-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition:
    transform 0.25s,
    border-color 0.25s;
}

.demo-card:hover {
  transform: translateY(-4px);
  border-color: #44444c;
}

/* Tarjeta de doble ancho con la foto a un lado: js/app.js la usa para completar la última fila */
.demo-card.is-wide {
  grid-column: span 2;
  flex-direction: row;
}

.demo-photo {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: #222;
}

.demo-card.is-wide .demo-photo {
  aspect-ratio: auto;
  flex: 1.25;
  min-height: 100%;
}

.demo-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s;
}

.demo-card:hover .demo-photo img {
  transform: scale(1.05);
}

/* Degradado oscuro en la base de la foto para que el nombre se lea sobre cualquier imagen */
.demo-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.75), transparent 60%);
}

.demo-name {
  font-size: 30px;
  line-height: 1.05;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.demo-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  font: 600 13px "Space Grotesk";
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  border-radius: 999px;
  padding: 4px 10px;
}

/* Colores de la demo, en círculos encimados. js/app.js define --swatch en cada uno */
.palette {
  position: absolute;
  top: 14px;
  right: 14px;
  display: flex;
}

.palette i {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
  margin-left: -6px;
  background: var(--swatch);
}

.demo-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.demo-body p {
  font-size: 15px;
  color: #cfcfd4;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chips span {
  font-size: 12.5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  color: var(--muted);
}

.demo-fonts {
  font-size: 12.5px;
  color: var(--muted);
}

/* margin-top: auto lo empuja al fondo para que quede alineado entre tarjetas de distinta altura */
.demo-open {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  font-weight: 600;
  font-size: 15px;
}

.demo-open span {
  color: var(--red);
}

/* ==========================================================================
   7. Cómo trabajamos
   ========================================================================== */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.steps div {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 26px;
}

.steps b {
  font: 700 44px "Space Grotesk";
  color: var(--red);
  display: block;
  line-height: 1;
}

.steps h3 {
  font-size: 22px;
  margin: 12px 0 6px;
}

.steps p {
  color: var(--muted);
}

/* ==========================================================================
   8. Contacto
   ========================================================================== */

/* Menos separación arriba que el resto de las secciones: el recuadro cierra la página */
.contact {
  padding-top: 20px;
}

.contact-card {
  background: linear-gradient(135deg, #1a0b0c, #2a0f12);
  border: 1px solid #3a1a1d;
  border-radius: 28px;
  padding: 56px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
}

.contact-card h2 {
  font-size: clamp(32px, 4vw, 50px);
}

.contact-text {
  color: var(--muted);
  margin-top: 12px;
}

.contact-card .btn {
  width: 100%;
  justify-content: center;
}

.contact-note {
  color: var(--muted);
  font-size: 14px;
  margin-top: 10px;
  text-align: center;
}

/* ==========================================================================
   9. Pie de página
   ========================================================================== */

footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
  color: var(--muted);
  font-size: 14px;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

/* ==========================================================================
   10. Adaptación a pantallas chicas
   ========================================================================== */

@media (max-width: 1020px) {
  .demo-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .features {
    grid-template-columns: 1fr 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .contact-card {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
}

@media (max-width: 700px) {
  .section-head {
    gap: 14px;
  }

  .hero {
    padding: 44px 0 36px;
  }

  /* Los dos botones de la portada se reparten el ancho por igual */
  .actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .actions .btn {
    justify-content: center;
    padding: 14px 10px;
  }

  .features div {
    padding: 16px;
  }

  /* Los filtros dejan de partirse en renglones y se deslizan de lado, de borde a borde */
  .filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    margin: 0 -22px;
    padding: 0 22px 6px;
    scrollbar-width: none;
  }

  .filters button {
    flex: none;
  }

  .demo-grid {
    grid-template-columns: 1fr;
  }

  /* En una sola columna la tarjeta ancha vuelve al formato normal */
  .demo-card.is-wide {
    grid-column: auto;
    flex-direction: column;
  }

  .demo-card.is-wide .demo-photo {
    aspect-ratio: 16/10;
    min-height: 0;
    flex: none;
  }

  .demo-name {
    font-size: 26px;
  }
}