/* ============================================================
   RELAY LABS — STYLES.CSS
   Dark Tech / Cyberpunk limpio — Mobile First
   ============================================================ */

/* ---------------------------------
   1. VARIABLES CSS (DESIGN TOKENS)
---------------------------------- */
:root {
  /* Colores base */
  --bg-primary: #090D16;
  --bg-card: #0B0F17;
  --border-color: #1E293B;
  --border-color-hover: #334155;

  /* Texto */
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  /* Acentos */
  --accent-cyan: #00F2FE;
  --accent-violet: #A855F7;
  --gradient-accent: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));

  /* Estados */
  --success: #22C55E;

  /* Tipografía */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Espaciados */
  --container-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  /* Transiciones */
  --transition-fast: 0.2s ease;
  --transition-base: 0.35s cubic-bezier(0.22, 1, 0.36, 1);

  /* Sombras */
  --shadow-glow-cyan: 0 0 40px rgba(0, 242, 254, 0.15);
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
}

/* ---------------------------------
   2. RESET
---------------------------------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

::selection {
  background: var(--accent-violet);
  color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover { background: var(--border-color-hover); }

/* ---------------------------------
   3. UTILIDADES GENERALES
---------------------------------- */
.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section {
  padding: 88px 0;
}

.section-container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-accent);
  color: #06131F;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 242, 254, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 15px 30px;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

.btn-nav {
  display: none;
}

/* ---------------------------------
   4. NAVBAR
---------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(9, 13, 22, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Hamburguesa */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 6px;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Menú móvil */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  background: var(--bg-card);
  border-top: 1px solid transparent;
  transition: max-height var(--transition-base), border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.mobile-menu.open {
  max-height: 400px;
  border-top: 1px solid var(--border-color);
}

.mobile-link {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.mobile-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.02);
}

.btn-mobile-cta {
  margin: 16px 20px;
}

/* ---------------------------------
   5. HERO SECTION
---------------------------------- */
.hero {
  position: relative;
  padding: 150px 20px 90px;
  text-align: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}

.hero-glow-1 {
  width: 380px;
  height: 380px;
  background: var(--accent-cyan);
  top: -100px;
  left: -100px;
}

.hero-glow-2 {
  width: 380px;
  height: 380px;
  background: var(--accent-violet);
  bottom: -140px;
  right: -100px;
}

.hero-container {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 340px;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
  width: 100%;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------------------------------
   6. APPS SHOWCASE
---------------------------------- */
.apps-section {
  background: linear-gradient(180deg, transparent, rgba(168, 85, 247, 0.03), transparent);
}

.apps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), border-color var(--transition-fast), box-shadow var(--transition-base);
}

.app-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-card);
}

.app-card-media {
  position: relative;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.08), rgba(168, 85, 247, 0.08));
  border-bottom: 1px solid var(--border-color);
}

.app-card-icon {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-glow-cyan);
}

.app-card-category {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(9, 13, 22, 0.7);
  border: 1px solid var(--border-color);
  color: var(--accent-cyan);
}

.app-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.app-card-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.app-card-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 18px;
  flex: 1;
}

.app-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.tag {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.app-card-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-download {
  background: var(--gradient-accent);
  color: #06131F;
}

.btn-details {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-details:hover,
.btn-download:hover {
  transform: translateY(-2px);
}

/* ---------------------------------
   7. MODAL DE DETALLES DE APP
---------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(4, 6, 10, 0.75);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transform: translateY(20px) scale(0.98);
  transition: transform var(--transition-base);
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.4rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: rotate(90deg);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  padding-right: 30px;
}

.modal-category {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 18px;
  display: block;
}

.modal-screens {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}

.modal-screen {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  object-fit: cover;
  object-position: top center;
  background: var(--bg-primary);
  cursor: zoom-in;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.modal-screen:hover {
  transform: scale(1.03);
  border-color: var(--border-color-hover);
}

.modal-desc {
  color: var(--text-secondary);
  margin-bottom: 18px;
}

.modal-features {
  margin-bottom: 24px;
}

.modal-features h4 {
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.modal-features ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-features li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}

.modal-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-accent);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ---------------------------------
   7b. LIGHTBOX DE CAPTURAS
---------------------------------- */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(4, 6, 10, 0.92);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.lightbox-overlay.open {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: min(90vw, 480px);
  max-height: 85vh;
  width: auto;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  transform: scale(0.96);
  transition: transform var(--transition-base);
  cursor: zoom-out;
}

.lightbox-overlay.open .lightbox-img {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.6rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: rotate(90deg);
}

/* ---------------------------------
   8. SERVICIOS
---------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: transform var(--transition-base), border-color var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-hover);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.06);
  border: 1px solid var(--border-color);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.service-list li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
  margin-bottom: 8px;
}

.service-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-violet);
}

/* ---------------------------------
   9. METODOLOGÍA
---------------------------------- */
.method-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.method-step {
  position: relative;
  padding-left: 8px;
  border-left: 2px solid var(--border-color);
  padding-left: 20px;
}

.method-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.method-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.method-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ---------------------------------
   10. CONTACTO
---------------------------------- */
.contact-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
}

.contact-info .section-eyebrow,
.contact-info .section-title,
.contact-info .section-subtitle {
  text-align: left;
}

.contact-info .section-title { margin-bottom: 14px; }
.contact-info .section-subtitle { margin-bottom: 32px; max-width: 480px; }

.whatsapp-cta {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--success);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.whatsapp-cta:hover {
  transform: translateY(-2px);
  background: rgba(34, 197, 94, 0.14);
}

.whatsapp-cta span {
  display: flex;
  flex-direction: column;
}

.whatsapp-cta strong {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.whatsapp-cta small {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 242, 254, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-status {
  font-size: 0.85rem;
  text-align: center;
  min-height: 1.2em;
}

.form-status.success { color: var(--success); }
.form-status.error { color: #F87171; }

/* ---------------------------------
   11. FOOTER
---------------------------------- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 48px 0 28px;
}

.footer-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 10px;
}

.footer-links {
  display: flex;
  gap: 18px;
}

.footer-links a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  color: var(--text-muted);
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ============================================================
   RESPONSIVE — TABLET (≥ 640px)
   ============================================================ */
@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    max-width: none;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modal-screens {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================================
   RESPONSIVE — DESKTOP (≥ 900px)
   ============================================================ */
@media (min-width: 900px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .nav-link {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    position: relative;
  }

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

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width var(--transition-fast);
  }

  .nav-link:hover::after { width: 100%; }

  .btn-nav { display: inline-flex; }
  .hamburger { display: none; }
  .mobile-menu { display: none; }

  .method-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact-container {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

/* ============================================================
   RESPONSIVE — LARGE DESKTOP (≥ 1140px)
   ============================================================ */
@media (min-width: 1140px) {
  .apps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------------------------------
   ACCESIBILIDAD: reduce motion
---------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}