/* ==========================================================================
   Base & Root Variables
   ========================================================================== */
:root {
  /* Colors */
  --bg: #030712; /* Very dark slate, almost black */
  --surface-1: rgba(17, 24, 39, 0.6);
  --surface-2: rgba(31, 41, 55, 0.4);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(59, 130, 246, 0.4);
  
  --primary: #3b82f6; /* Blue */
  --secondary: #8b5cf6; /* Purple */
  --tertiary: #06b6d4; /* Cyan */
  
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  
  /* Typography */
  --font-sans: 'Outfit', system-ui, -apple-system, sans-serif;
  
  /* Layout & Spacing */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  
  /* Animations */
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

ul { list-style: none; }
a { text-decoration: none; color: inherit; }

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5%;
}

.section-padding {
  padding: 8rem 0;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--tertiary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
  padding-bottom: 0.1em;
}

/* Language Toggle Logic */
.es, .en { display: none; }
[data-lang="es"] .es { display: inline-block; }
[data-lang="en"] .en { display: inline-block; }
p .es, p .en, h1 .es, h1 .en, h2 .es, h2 .en, h3 .es, h3 .en { display: inline; }

/* ==========================================================================
   Backgrounds & Effects
   ========================================================================== */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
}

.glow-blob {
  position: fixed;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -2;
  opacity: 0.15;
  pointer-events: none;
  animation: float 20s infinite ease-in-out alternate;
}

.glow-1 {
  top: -10%;
  left: -10%;
  background: var(--primary);
}

.glow-2 {
  bottom: -10%;
  right: -10%;
  background: var(--secondary);
  animation-delay: -10s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(5%, 5%) scale(1.1); }
  100% { transform: translate(-5%, 10%) scale(0.9); }
}

.glassmorphism {
  background: var(--surface-1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
}

.glass-card {
  background: linear-gradient(180deg, var(--surface-1) 0%, var(--surface-2) 100%);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.glass-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}

/* ==========================================================================
   Components
   ========================================================================== */
/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 99px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.5);
}

.btn-primary:hover::before { left: 100%; }

.btn-outline {
  display: inline-flex;
  padding: 0.5rem 1.25rem;
  font-weight: 500;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 99px;
  transition: var(--transition);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--text-main);
}

/* Language Bar */
.lang-bar {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  display: flex;
  padding: 4px;
  border-radius: 99px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  border-radius: 99px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--text-main);
  color: var(--bg);
}

/* Nav */
.glass-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 90;
  background: transparent;
  transition: var(--transition);
}

.glass-nav.scrolled {
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 5%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo span { color: var(--primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a:not(.btn-outline) {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}

.nav-links a:not(.btn-outline):hover { color: var(--text-main); }

@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* ==========================================================================
   Sections
   ========================================================================== */
/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-top: 100px;
  position: relative;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 99px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.indicator {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
  100% { opacity: 1; transform: scale(1); }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero .subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 700px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

.metrics-strip {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  padding: 2rem 4rem;
  border-radius: 99px;
  margin-top: 5rem;
  width: max-content;
  max-width: 90vw;
  flex-wrap: wrap;
}

.metric {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metric .number {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
}

.metric .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

@media (max-width: 768px) {
  .metrics-strip { flex-direction: column; gap: 1.5rem; border-radius: var(--radius-lg); padding: 2rem; }
  .divider { width: 40px; height: 1px; }
}

/* Section Headers */
.section-header {
  margin-bottom: 4rem;
  text-align: center;
}

.section-label {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(250px, auto);
  gap: 1.5rem;
}

.bento-card {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.bento-card.large {
  grid-column: span 2;
  grid-row: span 2;
  background: radial-gradient(circle at top left, rgba(59,130,246,0.1), transparent 50%), var(--surface-1);
}

.icon-wrapper {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  color: var(--primary);
}

.icon-wrapper svg { width: 24px; height: 24px; }

.bento-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.bento-card p {
  color: var(--text-muted);
  font-size: 1rem;
}

.bento-card.large h3 { font-size: 2rem; }
.bento-card.large p { font-size: 1.1rem; max-width: 80%; }

@media (max-width: 992px) {
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .bento-card.large { grid-column: span 2; }
}
@media (max-width: 600px) {
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card.large { grid-column: span 1; grid-row: span 1; }
  .bento-card.large p { max-width: 100%; }
}

/* Infinite Marquee */
.stack { overflow: hidden; }
.marquee-wrapper { position: relative; width: 100%; padding: 2rem 0; }
.marquee-wrapper::before, .marquee-wrapper::after {
  content: '';
  position: absolute; top: 0; bottom: 0; width: 20%;
  z-index: 2; pointer-events: none;
}
.marquee-wrapper::before {
  left: 0; background: linear-gradient(to right, var(--bg), transparent);
}
.marquee-wrapper::after {
  right: 0; background: linear-gradient(to left, var(--bg), transparent);
}

.marquee {
  display: flex;
  gap: 2rem;
  white-space: nowrap;
  animation: scroll 30s linear infinite;
  width: max-content;
}

.marquee:hover { animation-play-state: paused; }

.tech-tag {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.tech-tag:hover {
  color: white;
  border-color: var(--primary);
  background: rgba(59,130,246,0.1);
  transform: scale(1.05);
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-50% - 1rem)); } /* Shift based on duplicated content */
}

/* Timeline Process */
.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline-line {
  position: absolute;
  top: 0; bottom: 0; left: 24px;
  width: 2px;
  background: var(--surface-2);
  z-index: 0;
}

.timeline-progress {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 0%;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  transition: height 0.5s ease;
}

.timeline-item {
  position: relative;
  padding-left: 80px;
  margin-bottom: 4rem;
  z-index: 1;
}

.timeline-dot {
  position: absolute;
  left: 0; top: 0;
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--surface-2);
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.25rem;
  transition: var(--transition);
}

.timeline-item.active .timeline-dot {
  border-color: var(--primary);
  color: white;
  background: rgba(59,130,246,0.2);
  box-shadow: 0 0 20px rgba(59,130,246,0.4);
}

.timeline-content {
  padding: 2rem;
}

.timeline-content h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.timeline-content p { color: var(--text-muted); }

/* CTA Section */
.cta-box {
  padding: 5rem 2rem;
  text-align: center;
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.15), transparent 60%), var(--surface-1);
}

.cta-box h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta-box p {
  color: var(--text-muted);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  margin-top: 4rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

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

.social-links { display: flex; gap: 1.5rem; }
.social-links a { color: var(--text-muted); font-weight: 500; font-size: 0.9rem; transition: var(--transition); }
.social-links a:hover { color: var(--primary); }

@media (max-width: 600px) {
  .footer-content { flex-direction: column; text-align: center; }
}

/* ==========================================================================
   Animations & Reveals
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}