/* ============================================ */
/* OPTIMIZACIÓN FONT-DISPLAY PARA FONT AWESOME */
/* ============================================ */
@font-face {
  font-family: 'Font Awesome 6 Brands';
  font-style: normal;
  font-weight: 400;
  font-display: swap; /* ← ESTO SOLUCIONA EL PROBLEMA */
  src: url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-brands-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Font Awesome 6 Free';
  font-style: normal;
  font-weight: 900;
  font-display: swap; /* ← ESTO SOLUCIONA EL PROBLEMA */
  src: url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/webfonts/fa-solid-900.woff2') format('woff2');
}

/* ============================================ */
/* CLASES PARA ICONOS FONT AWESOME */
/* ============================================ */

.fa {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  line-height: 1;
}

.fas, .fa-solid {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-style: normal;
}

.fab, .fa-brands {
  font-family: 'Font Awesome 6 Brands';
  font-weight: 400;
  font-style: normal;
}


/* Futlogy - Modern Design System */

:root {
    /* Colors */
    --primary: #0066FF;
    --primary-dark: #0052CC;
    --secondary: #00D9FF;
    --accent: #FF6B00;
    --dark: #0A0E27;
    --dark-blue: #1A1F3A;
    --text-dark: #2D3748;
    --text-light: #718096;
    --white: #FFFFFF;
    --light: #F7FAFC;
    --success: #10B981;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0066FF 0%, #00D9FF 100%);
    --gradient-dark: linear-gradient(135deg, #0A0E27 0%, #1A1F3A 100%);
    --gradient-accent: linear-gradient(135deg, #FF6B00 0%, #FF8533 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

p {
  text-align: justify;
  text-justify: inter-word;
  line-height: 1.6;
  margin-bottom: 1em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 102, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    padding: 1.2rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
    font-display: swap;
}

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

.logo-logy {
    color: var(--secondary);
}

.logo-tagline {
    font-size: 0.65rem;
    color: var(--text-light);
    margin-top: -5px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary);
    transition: width 0.3s ease;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 102, 255, 0.4);
}

.btn-hero-primary {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 16px 35px;
    font-size: 1.05rem;
    box-shadow: 0 6px 25px rgba(0, 102, 255, 0.4);
}

.btn-hero-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 16px 35px;
    font-size: 1.05rem;
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--secondary);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}
.stat-mini {
  min-width: 120px;
  min-height: 60px;
}


.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0A0E27 0%, #1A1F3A 50%, #0066FF 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 217, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 107, 0, 0.05) 0%, transparent 50%);
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  min-height: 80vh; /* reserva espacio visual */
  padding: 2rem;     /* mejora legibilidad y aire */
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    color: var(--secondary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid rgba(0, 217, 255, 0.3);
}

.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
    font-display: swap;
}

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

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.stat-mini {
    text-align: left;
}

.stat-mini h3 {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-mini p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 500px;
}

.floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 15px;
  padding: 25px;
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: float 3s ease-in-out infinite;
  box-shadow: 0 10px 40px rgba(0, 102, 255, 0.2);

  /* ✅ Estabilidad visual */
  min-width: 220px;
  min-height: 100px;
  transition: transform 0.3s ease;
}

.floating-card:hover {
  transform: scale(1.03);
}

.floating-card i {
  font-size: 2rem;
  color: var(--secondary);
}
.floating-card span {
  color: var(--white);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
  display: inline-block;
  max-width: 200px;
  text-wrap: balance;
}

.card-1 {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 50%;
  right: 10%;
  animation-delay: 1s;
}

.card-3 {
  bottom: 15%;
  left: 20%;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Sections */
section {
  padding: 100px 0;
  scroll-margin-top: 80px; /* mejora navegación anclada */
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-badge {
  display: inline-block;
  background: rgba(0, 102, 255, 0.1);
  color: var(--primary);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
  line-height: 1.2;
  text-wrap: balance;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
  text-align: center;
}

/* IA Section */
.ia-section {
  background: var(--light);
  padding: 100px 0;
  scroll-margin-top: 80px;
}

.ia-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.ia-card {
  background: var(--white);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  border: 2px solid transparent;
  min-height: 320px; /* ✅ estabilidad visual */
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.ia-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px rgba(0, 102, 255, 0.15);
  border-color: var(--primary);
}

.ia-card.featured {
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(0, 217, 255, 0.05) 100%);
  border: 2px solid var(--primary);
}

.ia-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.ia-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.ia-badge {
  background: rgba(0, 102, 255, 0.1);
  color: var(--primary);
  padding: 5px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.ia-card h3 {
  font-size: 1.5rem;
  color: var(--dark);
  margin-bottom: 1rem;
  line-height: 1.3;
  text-wrap: balance;
}

.ia-card p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.6;
  text-wrap: pretty;
}

.ia-features {
  list-style: none;
  margin-bottom: 1.5rem;
  padding-left: 0;
}

.ia-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.ia-features i {
  color: var(--success);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.ia-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.tech-tag {
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Success Cases */
.ia-success-cases {
    margin-top: 4rem;
}

.cases-title {
    text-align: center;
    font-size: 2rem;
    color: var(--dark);
    margin-bottom: 2rem;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.case-item {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.1);
}

.case-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
    font-size: 1.8rem;
}

.case-item h4 {
    color: var(--dark);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.case-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.case-tag {
    display: inline-block;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Solutions Section */
.solutions-section {
    background: var(--white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.solution-card {
    background: var(--light);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.solution-card.featured {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(0, 217, 255, 0.05) 100%);
    border: 2px solid var(--primary);
}

.solution-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
}

.patent-badge {
    background: var(--gradient-accent);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.solution-card h3 {
    font-size: 1.6rem;
    color: var(--dark);
    margin-bottom: 1rem;
}

.solution-desc {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.solution-features span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.solution-features i {
    color: var(--success);
    font-size: 0.85rem;
}

.solution-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.solution-link:hover {
    gap: 1rem;
}

/* Patents Section */
.patents-section {
    background: var(--gradient-dark);
    color: var(--white);
}

.patents-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.patent-badge-large {
    width: 200px;
    height: 200px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 102, 255, 0.4);
}

.patent-badge-large i {
    font-size: 4rem;
    margin-bottom: 0.5rem;
}

.patent-badge-large span {
    font-size: 4rem;
    font-weight: 700;
}

.patents-visual h4 {
    text-align: center;
    font-size: 1.2rem;
    color: var(--secondary);
}

.patents-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.patents-text p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.patents-list {
    list-style: none;
    margin-bottom: 2rem;
}

.patents-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    color: rgba(255, 255, 255, 0.9);
}

.patents-list i {
    color: var(--secondary);
    font-size: 1.2rem;
}

/* Services */
.services-section {
    background: var(--light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-box {
    background: var(--white);
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.service-box:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 15px 40px rgba(0, 102, 255, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 2rem;
    transition: all 0.3s ease;
}

.service-box:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-box h3 {
    color: var(--dark);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.service-box p {
    color: var(--text-light);
    line-height: 1.6;
}

/* About Section */
.about-section {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-lead {
    font-size: 1.3rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-highlights {
    margin-top: 3rem;
}

.highlight-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.highlight-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.highlight-content h4 {
    color: var(--dark);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.highlight-content p {
    color: var(--text-light);
    margin: 0;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 15px;
    height: 15px;
    background: var(--primary);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: 0 0 0 3px var(--light);
}

.timeline-item.active::before {
    background: var(--secondary);
    animation: pulse-timeline 2s infinite;
}

@keyframes pulse-timeline {
    0%, 100% { box-shadow: 0 0 0 3px var(--light), 0 0 0 6px rgba(0, 217, 255, 0.3); }
    50% { box-shadow: 0 0 0 3px var(--light), 0 0 0 10px rgba(0, 217, 255, 0.1); }
}

.timeline-year {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-display: swap;
}

.timeline-content h4 {
    color: var(--dark);
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.timeline-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin: 0;
}

/* Contact CTA */
.contact-cta-section {
    background: var(--gradient-dark);
    color: var(--white);
}

.contact-cta-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.contact-cta-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-cta-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 1.5rem 2rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    border-color: var(--secondary);
}

.contact-btn i {
    font-size: 2rem;
    color: var(--secondary);
}

.contact-btn div {
    text-align: left;
}

.contact-btn span {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin-bottom: 0.2rem;
}

.contact-btn strong {
    color: var(--white);
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-display: swap;
}

.footer-tagline {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    letter-spacing: 1.5px;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: var(--secondary);
}

.footer-location {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.footer-location i {
    color: var(--secondary);
    margin-top: 0.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-patents {
    color: var(--secondary);
    font-weight: 600;
}

/* Scroll to Top */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 5px 20px rgba(0, 102, 255, 0.4);
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.5);
}

/* Responsive */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--dark);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        transition: right 0.3s ease;
        gap: 1rem;
    }

    .nav-menu.active {
        right: 0;
    }

    .hamburger {
        display: flex;
    }

    .nav-container .btn-primary {
        display: none;
    }

    .hero-container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-content,
    .patents-content {
        grid-template-columns: 1fr;
    }

    .timeline {
        padding-left: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-mini h3 {
        font-size: 2.5rem;
    }

    .contact-methods {
        flex-direction: column;
    }
}