/* ============================================
   IMPULSO NEGOCIO - Global Styles
   PPC & Automatizaciones Agency
   ============================================ */

/* — Google Fonts — */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=DM+Sans:ital,wght@0,400;0,500;0,700;1,400&display=swap');

/* — CSS Variables — */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2035;
  --bg-card-hover: #1f2847;
  --accent: #3b82f6;
  --accent-bright: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --accent-green: #10b981;
  --accent-green-glow: rgba(16, 185, 129, 0.2);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(148, 163, 184, 0.1);
  --border-accent: rgba(59, 130, 246, 0.3);
  --font-display: 'Sora', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-bright); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* — Typography — */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { color: var(--text-secondary); font-size: 1.05rem; }

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-bright);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--accent);
}

/* — Buttons — */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-bright);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-accent);
}

.btn-outline:hover {
  background: rgba(59, 130, 246, 0.08);
  border-color: var(--accent);
  color: var(--accent-bright);
}

.btn-green {
  background: var(--accent-green);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-green-glow);
}

.btn-green:hover {
  background: #34d399;
  color: #fff;
  transform: translateY(-2px);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.95);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo span {
  color: var(--accent-bright);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px !important;
  font-size: 0.85rem !important;
}

/* Mobile Nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 32px 24px;
    gap: 24px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    transition: all 0.4s ease;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: pulse-glow 6s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-green-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: pulse-glow 8s ease-in-out infinite reverse;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--border-accent);
  border-radius: 40px;
  padding: 8px 20px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-bright);
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease both;
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero p {
  font-size: 1.2rem;
  max-width: 560px;
  margin-bottom: 40px;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-stat h3 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-bright);
  margin-bottom: 4px;
}

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

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
  .hero-stats { gap: 24px; flex-wrap: wrap; }
}

/* ============================================
   SECTIONS
   ============================================ */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-header p {
  margin-top: 16px;
}

/* Grid de tarjetas */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

/* ============================================
   SERVICE CARDS
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 36px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-green));
  opacity: 0;
  transition: opacity var(--transition);
}

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

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--border-accent);
}

.card-icon.green {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
}

.card h3 {
  margin-bottom: 12px;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-bright);
}

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

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 48px 0;
}

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

.stats-grid h3 {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent-bright);
  margin-bottom: 8px;
}

.stats-grid p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

@media (max-width: 600px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================
   PROCESS / STEPS
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  counter-reset: step;
}

.step {
  position: relative;
  padding-top: 48px;
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(59, 130, 246, 0.12);
  position: absolute;
  top: 0;
  left: 0;
}

.step h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.step p {
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .process-steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .process-steps { grid-template-columns: 1fr; }
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 36px 32px;
}

.testimonial-stars {
  color: #fbbf24;
  font-size: 1rem;
  margin-bottom: 16px;
  letter-spacing: 4px;
}

.testimonial-card blockquote {
  font-size: 1rem;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-green));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
}

.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
}

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

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  text-align: center;
  padding: 100px 0;
}

.cta-box {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(59, 130, 246, 0.08) 100%);
  border: 1px solid var(--border-accent);
  border-radius: 24px;
  padding: 72px 48px;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta-box h2 {
  margin-bottom: 16px;
  position: relative;
}

.cta-box p {
  font-size: 1.1rem;
  max-width: 480px;
  margin: 0 auto 36px;
  position: relative;
}

.cta-box .btn {
  position: relative;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition);
}

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

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394a3b8' fill='none' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 280px;
}

.footer h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  color: var(--text-muted);
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 12px;
}

.footer ul a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a {
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================
   PAGE HERO (interior pages)
   ============================================ */
.page-hero {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 {
  position: relative;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.15rem;
  max-width: 560px;
  position: relative;
}

/* ============================================
   SERVICE DETAIL
   ============================================ */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.service-detail:nth-child(even) {
  direction: rtl;
}

.service-detail:nth-child(even) > * {
  direction: ltr;
}

.service-detail-visual {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  font-size: 5rem;
}

.service-detail h3 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.service-detail p {
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
  margin-top: 24px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.feature-list li::before {
  content: '✓';
  color: var(--accent-green);
  font-weight: 700;
  font-size: 0.9rem;
  margin-top: 2px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .service-detail {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .service-detail:nth-child(even) { direction: ltr; }
}

/* ============================================
   FAQ
   ============================================ */
.faq-item {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: var(--border-accent);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
}

.faq-question span {
  transition: transform var(--transition);
  font-size: 1.2rem;
  color: var(--text-muted);
}

.faq-item.open .faq-question span {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-content p {
  margin-bottom: 16px;
}

.about-visual {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 48px;
  text-align: center;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}

.value-card {
  text-align: center;
  padding: 40px 24px;
}

.value-card .card-icon {
  margin: 0 auto 16px;
}

@media (max-width: 768px) {
  .about-content { grid-template-columns: 1fr; }
  .value-grid { grid-template-columns: 1fr; }
}

/* ============================================
   UTILITY / ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Background grid pattern */
.bg-grid {
  position: relative;
}

.bg-grid::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 100%);
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 900;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--accent-bright);
}