/* ==========================================================================
   CSS Stylesheet for ExpoTech 2026
   Aesthetics: Futuristic Dark Theme, Glassmorphism, Neon Glow & Micro-animations
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* --- CSS Variables & Design Tokens --- */
:root {
  --bg-primary: #080b11;
  --bg-secondary: #0f1422;
  --bg-glass: rgba(15, 20, 34, 0.65);
  --border-glass: rgba(255, 255, 255, 0.07);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --color-cyan: #06b6d4;
  --color-violet: #8b5cf6;
  --color-pink: #ec4899;
  
  --gradient-neon: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
  --gradient-pink-purple: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
  --gradient-dark: linear-gradient(180deg, #080b11 0%, #0f1422 100%);
  
  --glow-cyan: 0 0 15px rgba(6, 182, 212, 0.4);
  --glow-violet: 0 0 15px rgba(139, 92, 246, 0.4);
  --glow-pink: 0 0 15px rgba(236, 72, 153, 0.4);
  
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Space Grotesk', sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  background-color: var(--bg-primary);
  background-image: var(--gradient-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background glowing blobs */
body::before, body::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  z-index: -1;
  filter: blur(120px);
  opacity: 0.25;
  pointer-events: none;
}

body::before {
  top: 15%;
  left: -100px;
  background-color: var(--color-cyan);
  animation: pulseBlob 12s infinite alternate ease-in-out;
}

body::after {
  bottom: 25%;
  right: -100px;
  background-color: var(--color-violet);
  animation: pulseBlob 12s infinite alternate-reverse ease-in-out;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

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

/* --- Typography Utilities --- */
.gradient-text {
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* --- Layout Containers --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 6rem 0;
  position: relative;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3.5rem auto;
  font-size: 1.1rem;
}

/* --- Header Component --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(8, 11, 17, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition-normal);
}

header.scrolled {
  background-color: rgba(8, 11, 17, 0.9);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 4.5rem;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
}

.logo-img {
  height: 2.5rem;
  width: auto;
  filter: drop-shadow(0 0 5px rgba(6, 182, 212, 0.4));
  transition: transform var(--transition-normal), filter var(--transition-normal);
}

.logo-wrapper:hover .logo-img {
  transform: scale(1.05) rotate(-3deg);
  filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.7));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
}

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

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

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

/* Button & Nav Call-to-action */
.btn-nav {
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  display: inline-block;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-nav:hover {
  border-color: var(--color-cyan);
  box-shadow: var(--glow-cyan);
  background: rgba(6, 182, 212, 0.1);
}

/* Hamburger toggle for mobile */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1010;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition-normal);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 7rem;
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
  background: #0a0c12;
}

.hero-info {
  max-width: 55%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--color-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: inset 0 0 10px rgba(6, 182, 212, 0.05);
}

.hero-tag i {
  animation: pulsePulse 2s infinite;
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 550px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

/* Prime CTA Button */
.btn-primary {
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--gradient-neon);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-normal);
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: 0.75s;
  pointer-events: none;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan), 0 6px 25px rgba(6, 182, 212, 0.4);
}

.btn-primary:hover::after {
  left: 120%;
}

.btn-secondary {
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Countdown Clock */
.countdown-container {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
}

.countdown-box {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  min-width: 85px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.countdown-value {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-cyan);
}

.countdown-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-top: 0.3rem;
}

.hero-img-wrap {
  position: absolute;
  right: 5%;
  top: 25%;
  width: 440px;
  animation: floatHero 4s ease-in-out infinite;
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 24px;
  border: 1px solid var(--border-glass);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  transition: var(--transition-slow);
  animation: rotateHero 25s linear infinite;
}

.hero-img:hover {
  box-shadow: var(--glow-violet), 0 25px 60px rgba(139, 92, 246, 0.3);
  border-color: rgba(139, 92, 246, 0.4);
}

/* --- Hero Sponsors Strip (Carrusel de Aliados) --- */
.hero-sponsors-strip {
  margin-top: 2rem;
  width: 100%;
}

.hero-sponsors-label {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

.hero-sponsors-track-outer {
  position: relative;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%);
}

.hero-sponsors-track-outer:hover .hero-sponsors-track {
  animation-play-state: paused;
}

@keyframes heroMarqueeScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.hero-sponsors-track {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: max-content;
  animation: heroMarqueeScroll 22s linear infinite;
}

/* Each pill — vibrant, colorful, glowing */
.hero-sponsor-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.5rem;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: default;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1.5px solid transparent;
  background-clip: padding-box;
}

/* Alternating bright color themes per pill */
.hero-sponsor-pill:nth-child(10n+1)  { background: rgba(6,182,212,0.12);  border-color: rgba(6,182,212,0.4);  color: #22d3ee; }
.hero-sponsor-pill:nth-child(10n+2)  { background: rgba(139,92,246,0.12); border-color: rgba(139,92,246,0.4); color: #a78bfa; }
.hero-sponsor-pill:nth-child(10n+3)  { background: rgba(236,72,153,0.12); border-color: rgba(236,72,153,0.4); color: #f472b6; }
.hero-sponsor-pill:nth-child(10n+4)  { background: rgba(34,197,94,0.10);  border-color: rgba(34,197,94,0.4);  color: #4ade80; }
.hero-sponsor-pill:nth-child(10n+5)  { background: rgba(251,191,36,0.10); border-color: rgba(251,191,36,0.4); color: #fbbf24; }
.hero-sponsor-pill:nth-child(10n+6)  { background: rgba(6,182,212,0.12);  border-color: rgba(6,182,212,0.4);  color: #22d3ee; }
.hero-sponsor-pill:nth-child(10n+7)  { background: rgba(139,92,246,0.12); border-color: rgba(139,92,246,0.4); color: #a78bfa; }
.hero-sponsor-pill:nth-child(10n+8)  { background: rgba(236,72,153,0.12); border-color: rgba(236,72,153,0.4); color: #f472b6; }
.hero-sponsor-pill:nth-child(10n+9)  { background: rgba(34,197,94,0.10);  border-color: rgba(34,197,94,0.4);  color: #4ade80; }
.hero-sponsor-pill:nth-child(10n+10) { background: rgba(251,191,36,0.10); border-color: rgba(251,191,36,0.4); color: #fbbf24; }

.hero-sponsor-pill i {
  font-size: 1.2rem;
}

.hero-sponsor-pill:hover {
  transform: translateY(-2px) scale(1.06);
  box-shadow: 0 4px 18px rgba(6, 182, 212, 0.25);
}



/* --- Ponentes Section --- */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 380px));
  gap: 2.5rem;
  justify-content: center;
}

.speaker-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 20px;
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  max-width: 380px;
  width: 100%;
  margin: 0 auto;
}

.speaker-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-neon);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.speaker-card:hover {
  transform: translateY(-10px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), var(--glow-violet);
}

.speaker-card:hover::before {
  transform: scaleX(1);
}

.speaker-img-box {
  width: 100%;
  height: 280px;
  overflow: hidden;
  position: relative;
  background-color: var(--bg-secondary);
}

.speaker-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.speaker-card:hover .speaker-img {
  transform: scale(1.08);
}

/* Social links floating over image */
.speaker-socials {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  gap: 0.75rem;
  z-index: 5;
  transform: translateY(20px);
  opacity: 0;
  transition: var(--transition-normal);
}

.speaker-card:hover .speaker-socials {
  transform: translateY(0);
  opacity: 1;
}

.speaker-social-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(15, 20, 34, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.speaker-social-btn:hover {
  background: var(--gradient-neon);
  border-color: transparent;
  color: #ffffff;
  box-shadow: var(--glow-cyan);
}

/* Card Body */
.speaker-info {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.speaker-name {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.speaker-role {
  font-size: 0.95rem;
  color: var(--color-cyan);
  font-weight: 500;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.speaker-bio {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.speaker-badge-container {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.speaker-badge {
  font-size: 0.8rem;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
}

/* --- Inscripción Section --- */
.register-container {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 4.5rem;
  align-items: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 32px;
  padding: 4rem;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.register-info-title {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.register-info-text {
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.register-benefits {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.benefit-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.25);
  color: var(--color-violet);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  box-shadow: inset 0 0 10px rgba(139, 92, 246, 0.05);
}

.benefit-title {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

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

/* Beautiful Form */
.register-form-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.75rem;
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  transition: var(--transition-fast);
}

.input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.input-container i {
  position: absolute;
  left: 1.25rem;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: var(--transition-fast);
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 1rem 1.25rem 1rem 3rem;
  border-radius: 8px;
  background-color: rgba(8, 11, 17, 0.6);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
  background-color: rgba(8, 11, 17, 0.8);
}

.form-input:focus + i {
  color: var(--color-cyan);
  text-shadow: var(--glow-cyan);
}

/* Dropdown list customization */
select.form-input {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.select-arrow {
  position: absolute;
  right: 1.25rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: var(--transition-fast);
}

.form-input:focus ~ .select-arrow {
  color: var(--color-cyan);
}

/* Sweet alert override helper if needed */
.swal2-popup {
  font-family: var(--font-body) !important;
  background: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-glass) !important;
  border-radius: 16px !important;
}

.swal2-title {
  color: var(--text-primary) !important;
  font-family: var(--font-heading) !important;
}

.swal2-content, .swal2-html-container {
  color: var(--text-secondary) !important;
}

.swal2-confirm {
  background: var(--gradient-neon) !important;
  box-shadow: var(--glow-cyan) !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
}

.swal2-cancel {
  border-radius: 8px !important;
  background: rgba(255, 255, 255, 0.05) !important;
  border: 1px solid var(--border-glass) !important;
}

/* Submit CTA button */
.btn-submit {
  width: 100%;
  padding: 1.1rem;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--gradient-neon);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition: var(--transition-normal);
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan), 0 6px 25px rgba(6, 182, 212, 0.45);
}

.btn-submit i {
  transition: var(--transition-fast);
}

.btn-submit:hover i {
  transform: translateX(4px);
}

/* --- Footer Section --- */
footer {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-glass);
  padding: 5rem 0 2.5rem 0;
  position: relative;
  overflow: hidden;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand-text {
  color: var(--text-secondary);
  margin-top: 1.25rem;
  margin-bottom: 2rem;
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 1.75rem;
  position: relative;
  display: inline-block;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 1.5rem;
  height: 2px;
  background: var(--gradient-neon);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-link-item {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.footer-link-item:hover {
  color: var(--text-primary);
  transform: translateX(4px);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-item i {
  color: var(--color-cyan);
  font-size: 1.1rem;
  width: 1.25rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-btn {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-fast);
}

.social-btn:hover {
  background: var(--gradient-neon);
  border-color: transparent;
  color: #ffffff;
  transform: translateY(-4px);
  box-shadow: var(--glow-cyan);
}

/* Footer bottom copyright area */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-bottom-links {
  display: flex;
  gap: 2rem;
}

.footer-bottom-link:hover {
  color: var(--text-secondary);
}

/* --- KEYFRAME ANIMATIONS --- */
@keyframes pulseBlob {
  0% { transform: scale(1) translate(0px, 0px); }
  50% { transform: scale(1.15) translate(30px, -50px); }
  100% { transform: scale(0.9) translate(-20px, 20px); }
}

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

@keyframes floatHero {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

@keyframes rotateHero {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes rotateLogo {
  0% { transform: rotateY(0deg) scale(1); }
  50% { transform: rotateY(180deg) scale(1.15); }
  100% { transform: rotateY(360deg) scale(1); }
}

/* --- RESPONSIVE MEDIA QUERIES --- */

/* Desktop & Large Screen Fixes */
@media (min-width: 1400px) {
  .container {
    max-width: 1300px;
  }
}

/* Table Viewports (max-width: 1024px) */
@media (max-width: 1024px) {
  html {
    font-size: 15px;
  }
  
  .section {
    padding: 5rem 0;
  }
  
  .hero-title {
    font-size: 3.2rem;
  }
  
  .register-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .footer-grid > div:first-child {
    grid-column: span 2;
  }
}

/* Mobile & Small Table Viewports (max-width: 768px) */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  /* Hamburger menu functionality */
  .hamburger {
    display: block;
  }
  
  .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);
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(8, 11, 17, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-glass);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 4rem 3rem;
    gap: 2rem;
    z-index: 1005;
    transition: var(--transition-normal);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.1rem;
  }
  
  .hero-info {
    max-width: 100%;
  }

  .hero-img-wrap {
    width: 220px;
    right: 3%;
  }

  .hero-tag {
    justify-content: center;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-description {
    font-size: 1rem;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
  }

  .hero-sponsors-strip {
    display: none;
  }

  .countdown-value {
    font-size: 1.4rem;
  }
  
  .hero-ctas {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .countdown-container {
    justify-content: center;
  }
  
  .speakers-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }
  
  .register-container {
    padding: 2rem;
    border-radius: 20px;
  }
  
  .register-form-box {
    padding: 1.5rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-grid > div:first-child {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }
}

/* Small Screens & Mobile (max-width: 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  
  .countdown-box {
    min-width: 60px;
    padding: 0.4rem;
  }

  .countdown-value {
    font-size: 1.2rem;
  }

  .register-container {
    padding: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }
  
  .countdown-value {
    font-size: 1.5rem;
  }
}

/* ==========================================================================
   NUEVOS ESTILOS: NAVEGACIÓN SPA, COMPONENTES INTERACTIVOS Y TICKET
   ========================================================================== */

/* --- SPA Views & Transitions --- */
.view-section {
  display: none !important;
  opacity: 0;
}

@keyframes viewFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.view-section.active-view {
  display: block !important;
  animation: viewFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

section.hero.view-section.active-view {
  display: flex !important;
  animation: viewFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.nav-link.active {
  color: var(--text-primary) !important;
  text-shadow: var(--glow-cyan) !important;
}

.nav-link.active::after {
  width: 100% !important;
}

/* --- Categorías de Ponentes (Filtro) --- */
.filter-container {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--gradient-neon);
  border-color: transparent;
  color: #ffffff;
  box-shadow: var(--glow-cyan);
}

.speaker-card {
  transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.speaker-card.hidden {
  display: none !important;
}

/* --- Speaker Detail Modal --- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.modal.active {
  opacity: 1;
  pointer-events: all;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 11, 17, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), var(--glow-violet);
  border-radius: 24px;
  width: 100%;
  max-width: 650px;
  z-index: 2010;
  overflow: hidden;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 1.5rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2020;
  transition: var(--transition-fast);
  line-height: 1;
}

.modal-close:hover {
  background: rgba(236, 72, 153, 0.1);
  border-color: var(--color-pink);
  color: var(--color-pink);
}

.modal-body {
  padding: 3rem;
}

.modal-speaker-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  align-items: start;
}

.modal-speaker-img {
  width: 180px;
  height: 180px;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid var(--border-glass);
  box-shadow: var(--glow-cyan);
}

.modal-speaker-info h3 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.modal-speaker-role {
  color: var(--color-cyan);
  text-transform: uppercase;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.modal-speaker-bio {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.modal-speaker-schedule {
  background: rgba(6, 182, 212, 0.05);
  border: 1px solid rgba(6, 182, 212, 0.15);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
}

.modal-speaker-schedule i {
  color: var(--color-cyan);
  font-size: 1.2rem;
}

.modal-speaker-socials {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* --- Sidebar Info Drawer --- */
.sidebar-drawer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.sidebar-drawer.active {
  opacity: 1;
  pointer-events: all;
}

.drawer-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 11, 17, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 400px;
  height: 100%;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-glass);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  z-index: 2010;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-drawer.active .drawer-content {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 1rem;
}

.drawer-header h3 {
  font-size: 1.4rem;
}

.drawer-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
  line-height: 1;
}

.drawer-close:hover {
  color: var(--text-primary);
  transform: rotate(90deg);
}

.drawer-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.drawer-info-group {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.drawer-icon-box {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 8px;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--color-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.drawer-info-group h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

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

.drawer-agenda h4 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.agenda-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 1rem;
}

.agenda-list li {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
}

.agenda-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.agenda-time {
  color: var(--color-cyan);
  font-weight: 600;
  min-width: 65px;
}

.agenda-event {
  color: var(--text-secondary);
}

.drawer-map-box h4 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.mock-map {
  background: rgba(8, 11, 17, 0.5);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  gap: 0.5rem;
}

.mock-map i {
  font-size: 2rem;
  color: var(--color-violet);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* --- Ticket Digital (Boleto Pass) --- */
.ticket-container-box {
  animation: viewFadeIn 0.5s ease forwards;
}

.ticket-wrapper {
  position: relative;
  margin-bottom: 2rem;
}

.ticket-glow {
  position: absolute;
  inset: -5px;
  background: linear-gradient(135deg, var(--color-cyan), var(--color-violet), var(--color-pink));
  filter: blur(15px);
  opacity: 0.3;
  border-radius: 24px;
  z-index: 1;
}

.ticket-card {
  position: relative;
  background: #0d111b;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 2rem;
  z-index: 2;
  overflow: hidden;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.ticket-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.ticket-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.ticket-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
}

.ticket-logo-img {
  height: 1.75rem;
  width: auto;
}

.ticket-pass-type {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #a78bfa;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
}

.ticket-body {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ticket-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.ticket-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.ticket-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ticket-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
}

.ticket-code-id {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-cyan);
  text-shadow: var(--glow-cyan);
}

.qr-code-placeholder {
  background: #ffffff;
  padding: 6px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.qr-code-placeholder canvas {
  display: block;
  width: 75px;
  height: 75px;
}

.ticket-divider {
  position: relative;
  height: 20px;
  margin: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ticket-divider .divider-line {
  width: 100%;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.ticket-divider .divider-circle {
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--bg-secondary);
  border-radius: 50%;
  z-index: 3;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ticket-divider .divider-circle.left {
  left: -31px;
  clip-path: circle(50% at 100% 50%);
}

.ticket-divider .divider-circle.right {
  right: -31px;
  clip-path: circle(50% at 0 50%);
}

.ticket-instruction {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

.ticket-actions {
  display: flex;
  gap: 1rem;
}

.ticket-actions button {
  flex: 1;
}

/* Ajustes de responsividad específicos para modales y tickets */
@media (max-width: 600px) {
  .modal-speaker-grid {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }
  .modal-body {
    padding: 2.5rem 1.5rem;
  }
  .modal-speaker-schedule {
    justify-content: center;
  }
  .modal-speaker-socials {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .ticket-actions {
    flex-direction: column;
  }
}