/* =============================================
   TeleBit Comunicaciones - Landing Page Styles
   ============================================= */

/* ---------- CSS Variables / Design Tokens ---------- */
:root {
  --bg-primary: #f8fafb;
  --bg-secondary: #ffffff;
  --bg-dark: #24434B;
  --bg-card: #ffffff;
  --bg-card-dark: #24434B;
  --border-color: rgba(36, 67, 75, 0.1);
  --border-hover: rgba(250, 202, 102, 0.5);

  --text-primary: #24434B;
  --text-secondary: #4a5d62;
  --text-muted: #748c94;
  --text-light: #ffffff;

  --accent: #FACA66;
  --accent-hover: #fbd588;
  --primary: #24434B;
  --primary-light: #355f6b;

  --gradient-primary: linear-gradient(135deg, #24434B 0%, #355f6b 50%, #4a7d8a 100%);
  --gradient-accent: linear-gradient(135deg, #FACA66 0%, #fbd588 100%);
  --gradient-dark: linear-gradient(145deg, #24434B 0%, #1a3138 100%);
  --gradient-mesh: radial-gradient(at 0% 0%, rgba(250, 202, 102, 0.15) 0px, transparent 50%),
                   radial-gradient(at 100% 0%, rgba(36, 67, 75, 0.08) 0px, transparent 50%),
                   radial-gradient(at 100% 100%, rgba(250, 202, 102, 0.1) 0px, transparent 50%),
                   radial-gradient(at 0% 100%, rgba(36, 67, 75, 0.05) 0px, transparent 50%);

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-headline: 'Plus Jakarta Sans', var(--font-family);
  --radius: 24px;
  --radius-sm: 12px;
  --radius-lg: 40px;

  --shadow-glow: 0 10px 40px rgba(36, 67, 75, 0.1);
  --shadow-accent: 0 10px 30px rgba(250, 202, 102, 0.2);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.05);

  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1280px;
  --nav-height: 80px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  background-image: var(--gradient-mesh);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-headline);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 8vw, 4.5rem); }
h2 { font-size: clamp(2rem, 5vw, 3rem); }
h3 { font-size: 1.5rem; }

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

.text-cyan {
  color: var(--accent);
}

.text-accent {
  color: var(--accent) !important;
}

/* ---------- Badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: rgba(250, 202, 102, 0.1);
  border: 1px solid rgba(250, 202, 102, 0.2);
  color: var(--primary);
  text-transform: uppercase;
}

.badge-cyan {
  background: rgba(36, 67, 75, 0.05);
  border-color: rgba(36, 67, 75, 0.1);
  color: var(--primary);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 32px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font-family);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-light);
  box-shadow: 0 10px 20px rgba(36, 67, 75, 0.15);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 30px rgba(36, 67, 75, 0.25);
}

.btn-outline {
  background: var(--accent);
  color: var(--primary);
  box-shadow: var(--shadow-accent);
}

.btn-outline:hover {
  transform: translateY(-3px) scale(1.02);
  filter: brightness(1.05);
  box-shadow: 0 15px 30px rgba(250, 202, 102, 0.3);
}

.btn-lg {
  padding: 20px 48px;
  font-size: 1.1rem;
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: var(--container-max);
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  transition: var(--transition);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.navbar.scrolled {
  top: 10px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.15rem;
  color: var(--text-primary);
}

.logo-icon {
  color: var(--cyan);
  width: 24px;
  height: 24px;
}

.logo strong {
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

.btn-nav {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  background: rgba(2, 8, 23, 0.98);
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu.active {
  display: flex;
}

.mobile-link {
  font-size: 1rem;
  color: var(--text-secondary);
  padding: 8px 0;
}

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

/* ---------- HERO ---------- */
.hero {
  position: relative;
  padding: 160px 0 80px;
  text-align: center;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  pointer-events: none;
}

.hero-glow--left {
  top: -100px;
  left: -200px;
  background: var(--purple);
}

.hero-glow--right {
  top: -50px;
  right: -200px;
  background: var(--cyan-dark);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  margin: 20px auto 24px;
  max-width: 800px;
}

.hero-desc {
  color: var(--text-secondary);
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- STATS ---------- */
.stats {
  padding: 60px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  font-style: italic;
}

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

/* ---------- ABOUT ---------- */
.about {
  padding: 100px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text h2 {
  margin-bottom: 20px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
}

.check-icon {
  width: 20px;
  height: 20px;
  color: var(--cyan);
  flex-shrink: 0;
}

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: var(--transition);
  text-align: center;
}

.category-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.category-icon {
  width: 40px;
  height: 40px;
  color: var(--primary);
}

.category-card span {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary);
}

/* ---------- SERVICES ---------- */
.services {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 16px auto 0;
  font-size: 1.05rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 40px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

/* Specific Dark Theme for Marketing Service */
.service-card.dark-theme {
  background: var(--gradient-dark);
  border: none;
  box-shadow: 0 20px 40px rgba(36, 67, 75, 0.2);
}

.service-card.dark-theme h3 {
  color: #ffffff;
}

.service-card.dark-theme > p {
  color: rgba(255, 255, 255, 0.7);
}

.service-card.dark-theme .service-list li {
  color: rgba(255, 255, 255, 0.8);
}

.service-card.dark-theme .service-link {
  color: var(--accent);
}

.service-card.dark-theme .service-icon-wrap {
  background: rgba(250, 202, 102, 0.1);
}

.service-card.dark-theme .service-icon {
  color: var(--accent);
}

.service-card.dark-theme:hover .service-icon-wrap {
  background: var(--accent);
}

.service-card.dark-theme:hover .service-icon {
  color: var(--primary);
}

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

.service-icon-wrap {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: rgba(36, 67, 75, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .service-icon-wrap {
  background: var(--primary);
}

.service-card:hover .service-icon {
  color: #ffffff;
}

.service-icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
  transition: var(--transition);
}

.service-card h3 {
  margin-bottom: 8px;
}

.service-card > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
  flex-grow: 1;
}

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

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

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 700;
}

.service-link:hover {
  gap: 10px;
}

/* ---------- AI SECTION ---------- */
.ai-section {
  position: relative;
  padding: 120px 0;
  text-align: center;
  overflow: hidden;
  background: var(--gradient-dark);
  color: var(--text-light);
  border-radius: 64px;
  margin: 0 24px;
}

.ai-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(250, 202, 102, 0.1), transparent 70%);
  filter: blur(80px);
}

.ai-content h2 {
  color: var(--text-light);
}

.ai-section .badge {
  color: var(--text-light);
  border-color: rgba(255, 255, 255, 0.2);
}

.ai-content p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 40px;
  font-size: 1.15rem;
}

/* ---------- TESTIMONIALS ---------- */
.testimonials {
  padding: 100px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}

.testimonial-card:hover {
  border-color: var(--accent);
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.star-icon {
  width: 16px;
  height: 16px;
  color: #fbbf24;
  fill: #fbbf24;
}

.testimonial-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-light);
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
}

.testimonial-author span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- CONTACT ---------- */
.contact {
  padding: 100px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item:nth-child(1) .contact-icon-wrap {
  background: rgba(139, 92, 246, 0.15);
}
.contact-item:nth-child(2) .contact-icon-wrap {
  background: rgba(16, 185, 129, 0.15);
}
.contact-item:nth-child(3) .contact-icon-wrap {
  background: rgba(236, 72, 153, 0.15);
}

.contact-item:nth-child(1) .contact-icon { color: var(--purple); }
.contact-item:nth-child(2) .contact-icon { color: var(--green); }
.contact-item:nth-child(3) .contact-icon { color: var(--pink); }

.contact-icon {
  width: 22px;
  height: 22px;
}

.contact-item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-item a,
.contact-item span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.contact-item a:hover {
  color: var(--primary);
  font-weight: 600;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.social-icon:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-3px);
}

/* ---------- CONTACT FORM ---------- */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: #ffffff;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(36, 67, 75, 0.05);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group select option {
  background: var(--bg-primary);
  color: var(--text-primary);
}

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

.btn-submit {
  width: 100%;
  padding: 14px 32px;
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.form-status {
  margin-top: 12px;
  text-align: center;
  font-size: 0.9rem;
  min-height: 24px;
}

.form-status.success {
  color: var(--green);
}

.form-status.error {
  color: #ef4444;
}

/* ---------- FOOTER ---------- */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border-color);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-links a:hover {
  color: var(--text-primary);
}

/* ---------- Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for grid children */
.services-grid .fade-in:nth-child(2) { transition-delay: 0.1s; }
.services-grid .fade-in:nth-child(3) { transition-delay: 0.2s; }
.services-grid .fade-in:nth-child(4) { transition-delay: 0.3s; }
.services-grid .fade-in:nth-child(5) { transition-delay: 0.4s; }
.services-grid .fade-in:nth-child(6) { transition-delay: 0.5s; }

.testimonials-grid .fade-in:nth-child(2) { transition-delay: 0.1s; }
.testimonials-grid .fade-in:nth-child(3) { transition-delay: 0.2s; }

.stats-grid .fade-in:nth-child(2) { transition-delay: 0.1s; }
.stats-grid .fade-in:nth-child(3) { transition-delay: 0.2s; }
.stats-grid .fade-in:nth-child(4) { transition-delay: 0.3s; }

/* ---------- RESPONSIVE ---------- */

/* Tablet */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .testimonials-grid .testimonial-card:nth-child(3) {
    grid-column: 1 / -1;
    max-width: 500px;
    justify-self: center;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-links,
  .btn-nav {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

  .testimonials-grid .testimonial-card:nth-child(3) {
    max-width: 100%;
  }

  .contact-form {
    padding: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .section-header {
    margin-bottom: 40px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .about-cards {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .stat-number {
    font-size: 2rem;
  }
}

/* ---------- WhatsApp Floating Button ---------- */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #25d366;
  color: #fff;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.whatsapp-float:hover {
  background-color: #128c7e;
  transform: scale(1.1);
  color: #fff;
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 20px;
    right: 20px;
    font-size: 25px;
  }
}