@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;700;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- Design System & CSS Variables --- */
:root {
  /* Colors - Dark Mode Premium (Default) */
  --bg-primary: #040814;
  --bg-secondary: #0a1128;
  --bg-canvas: #02040a;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #00f0ff;
  --accent-blue: #0055ff;
  --accent-teal: #14b8a6;
  
  --accent-cyan-rgb: 0, 240, 255;
  --accent-blue-rgb: 0, 85, 255;
  
  /* Glassmorphism */
  --glass-bg: rgba(10, 17, 40, 0.5);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(0, 240, 255, 0.35);
  
  /* Shadows & Glows */
  --card-shadow: 0 20px 50px -12px rgba(0, 0, 0, 0.8);
  --neon-glow: 0 0 20px rgba(0, 240, 255, 0.25);
  --glow-strength: rgba(0, 240, 255, 0.12);
  
  /* Fonts */
  --font-brand: 'Montserrat', sans-serif;
  --font-body: 'Outfit', sans-serif;
  
  /* Navigation */
  --nav-height: 80px;
  
  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-theme: background-color 0.6s ease, color 0.6s ease, border-color 0.6s ease, box-shadow 0.6s ease, filter 0.6s ease;
}

/* Light Theme Variables overrides */
.light-theme {
  --bg-primary: #f4f6fc;
  --bg-secondary: #ffffff;
  --bg-canvas: #edf2f9;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --accent-cyan: #0099ff;
  --accent-blue: #2563eb;
  --accent-teal: #0d9488;
  
  --accent-cyan-rgb: 0, 153, 255;
  --accent-blue-rgb: 37, 99, 235;
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(15, 23, 42, 0.08);
  --glass-border-hover: rgba(37, 99, 235, 0.35);
  
  /* Shadows & Glows */
  --card-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.1);
  --neon-glow: 0 0 20px rgba(37, 99, 235, 0.15);
  --glow-strength: rgba(37, 99, 235, 0.06);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: var(--transition-theme);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(var(--accent-blue-rgb), 0.3);
  border-radius: 10px;
  border: 2px solid var(--bg-primary);
  transition: var(--transition-smooth);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Selection */
::selection {
  background-color: rgba(var(--accent-cyan-rgb), 0.3);
  color: var(--text-primary);
}

/* --- Utilities --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

.text-gradient {
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-neon {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  font-family: var(--font-brand);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  display: inline-block;
  position: relative;
  padding-left: 1.5rem;
}

.section-tag::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 2px;
  background-color: var(--accent-cyan);
}

.section-title {
  font-family: var(--font-brand);
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.15rem;
  max-width: 600px;
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2rem;
  font-family: var(--font-brand);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-decoration: none;
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  color: #040814;
  box-shadow: 0 4px 20px rgba(var(--accent-cyan-rgb), 0.25);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-cyan) 100%);
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: -1;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(var(--accent-cyan-rgb), 0.45), var(--neon-glow);
  color: #ffffff;
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(5px);
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  background-color: rgba(var(--accent-cyan-rgb), 0.05);
  transform: translateY(-3px);
  box-shadow: var(--neon-glow);
}

/* Glass panel base style */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 20px;
  transition: var(--transition-smooth);
}

/* --- Interactive Background Canvas --- */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  pointer-events: none;
  background-color: var(--bg-canvas);
  transition: var(--transition-theme);
}

.bg-aurora {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -3;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.6;
}

.bg-aurora::before,
.bg-aurora::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  mix-blend-mode: screen;
  transition: var(--transition-theme);
}

.bg-aurora::before {
  top: -20%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
}

.bg-aurora::after {
  bottom: -20%;
  right: -10%;
  width: 70vw;
  height: 70vw;
  background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
}

.light-theme .bg-aurora::before,
.light-theme .bg-aurora::after {
  opacity: 0.08;
  mix-blend-mode: multiply;
}

/* --- Header / Navigation Bar --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth), var(--transition-theme);
}

header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  height: 70px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.logo-container {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 0.75rem;
}

.logo-img {
  height: 42px;
  width: auto;
  transition: var(--transition-smooth);
}

.logo-text {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 2px;
  color: var(--text-primary);
  transition: var(--transition-theme);
}

.logo-text span {
  font-weight: 300;
  color: var(--accent-blue);
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 2.25rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-family: var(--font-brand);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition-smooth);
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  transition: var(--transition-smooth);
}

.nav-links a.active {
  color: var(--accent-cyan);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Theme Toggle Button */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--glass-border);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.2rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.theme-toggle:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--neon-glow);
  transform: scale(1.05);
}

.theme-toggle i {
  position: absolute;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.5s ease;
}

.theme-toggle .fa-sun {
  opacity: 1;
  transform: translateY(0) rotate(0);
}

.theme-toggle .fa-moon {
  opacity: 0;
  transform: translateY(20px) rotate(90deg);
}

.light-theme .theme-toggle .fa-sun {
  opacity: 0;
  transform: translateY(-20px) rotate(-90deg);
}

.light-theme .theme-toggle .fa-moon {
  opacity: 1;
  transform: translateY(0) rotate(360deg);
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 101;
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: calc(var(--nav-height) + 2rem);
  padding-bottom: 4rem;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 3rem;
}

.hero-content {
  position: relative;
  z-index: 5;
}

.hero-tag {
  border: 1px solid rgba(var(--accent-cyan-rgb), 0.2);
  background-color: rgba(var(--accent-cyan-rgb), 0.05);
  color: var(--accent-cyan);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-family: var(--font-brand);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 0 15px rgba(var(--accent-cyan-rgb), 0.1) inset;
}

.hero-tag span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.hero h1 {
  font-family: var(--font-brand);
  font-size: 4rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  line-height: 1.6;
  max-width: 540px;
}

.hero-ctas {
  display: flex;
  gap: 1.25rem;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 450px;
}

.hero-logo-interactive {
  width: 100%;
  max-width: 380px;
  height: auto;
  filter: drop-shadow(0 0 40px rgba(var(--accent-cyan-rgb), 0.15));
  animation: hero-logo-bounce 8s ease-in-out infinite;
}

@keyframes hero-logo-bounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-brand);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-decoration: none;
  gap: 0.5rem;
  z-index: 10;
  transition: var(--transition-smooth);
}

.scroll-indicator:hover {
  color: var(--text-primary);
}

.scroll-indicator::after {
  content: '';
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
  animation: scroll-line 2s infinite cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: top;
}

@keyframes scroll-line {
  0% { transform: scaleY(0); }
  50% { transform: scaleY(1); }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* --- Section Layout --- */
.section {
  padding: 8rem 0;
  position: relative;
}

/* --- Services / O que Fazemos --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  position: relative;
  padding: 3rem;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  z-index: 1;
}

/* Hover tracking background glow */
.service-card::after {
  content: '';
  position: absolute;
  top: var(--mouse-y, 0px);
  left: var(--mouse-x, 0px);
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, var(--glow-strength) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.service-card:hover::after {
  opacity: 1;
}

.service-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-5px);
  box-shadow: var(--card-shadow), 0 10px 30px rgba(var(--accent-cyan-rgb), 0.05);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(var(--accent-cyan-rgb), 0.1) 0%, rgba(var(--accent-blue-rgb), 0.1) 100%);
  border: 1px solid rgba(var(--accent-cyan-rgb), 0.2);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 2rem;
  transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  color: #040814;
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--neon-glow);
}

.service-card h3 {
  font-family: var(--font-brand);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.service-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-brand);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-cyan);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.service-link i {
  transition: var(--transition-smooth);
}

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

.service-card:hover .service-link i {
  transform: translateX(5px);
}

/* --- Who We Are / Quem Somos --- */
.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  align-items: center;
}

.about-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-mesh {
  position: relative;
  width: 100%;
  max-width: 450px;
  height: 450px;
  border-radius: 30px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border: 1px solid var(--glass-border);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Futuristic graphic inside mesh */
.about-mesh::before {
  content: '';
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  border: 1px dashed rgba(var(--accent-cyan-rgb), 0.2);
  animation: spin-clockwise 30s linear infinite;
}

.about-mesh::after {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 2px solid rgba(var(--accent-blue-rgb), 0.15);
  border-top-color: var(--accent-cyan);
  border-bottom-color: var(--accent-blue);
  animation: spin-counter 15s linear infinite;
}

.mesh-crystal {
  width: 120px;
  height: 120px;
  z-index: 2;
  filter: drop-shadow(0 0 20px rgba(var(--accent-cyan-rgb), 0.3));
  animation: hero-logo-bounce 6s ease-in-out infinite;
}

@keyframes spin-clockwise {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes spin-counter {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

.founders-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.founder-card {
  padding: 2.25rem;
  display: flex;
  gap: 1.75rem;
  align-items: flex-start;
}

.founder-avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  color: #040814;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  border: 2px solid var(--text-primary);
  flex-shrink: 0;
  box-shadow: var(--neon-glow);
}

.founder-card:nth-child(2) .founder-avatar {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
}

.founder-info h4 {
  font-family: var(--font-brand);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.founder-role {
  font-family: var(--font-brand);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 1rem;
  display: block;
}

.founder-bio {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* --- Business Model / Modelo de Negócios --- */
.model-intro {
  text-align: center;
  margin-bottom: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.model-card {
  padding: 4rem 3rem;
  position: relative;
  overflow: hidden;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.model-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
}

.model-card:nth-child(2)::after {
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-teal));
}

.model-badge {
  font-family: var(--font-brand);
  font-size: 0.75rem;
  font-weight: 800;
  color: #040814;
  background-color: var(--accent-cyan);
  padding: 0.4rem 1.25rem;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 2rem;
  box-shadow: var(--neon-glow);
}

.model-card:nth-child(2) .model-badge {
  background-color: var(--accent-blue);
  color: #ffffff;
}

.model-card h3 {
  font-family: var(--font-brand);
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.model-card p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 440px;
  margin-bottom: 2.5rem;
}

.model-features {
  list-style: none;
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.model-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  text-align: left;
}

.model-features li i {
  color: var(--accent-cyan);
  font-size: 1.1rem;
}

.model-card:nth-child(2) .model-features li i {
  color: var(--accent-blue);
}

/* --- Contact & Conversion / Contato --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-top: 2rem;
}

.contact-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background-color: rgba(var(--accent-cyan-rgb), 0.08);
  border: 1px solid rgba(var(--accent-cyan-rgb), 0.2);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-text h5 {
  font-family: var(--font-brand);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.25rem;
}

.contact-text p {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-text a {
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

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

.contact-form {
  padding: 3.5rem;
}

.form-group {
  margin-bottom: 2rem;
  position: relative;
}

.form-label {
  display: block;
  font-family: var(--font-brand);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  transition: var(--transition-smooth);
}

.form-control {
  width: 100%;
  padding: 1.1rem 1.5rem;
  background-color: rgba(15, 23, 42, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.light-theme .form-control {
  background-color: rgba(255, 255, 255, 0.8);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cyan);
  background-color: rgba(15, 23, 42, 0.5);
  box-shadow: 0 0 15px rgba(var(--accent-cyan-rgb), 0.15);
}

.light-theme .form-control:focus {
  background-color: #ffffff;
}

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

.form-group:focus-within .form-label {
  color: var(--accent-cyan);
}

/* Submit status styles */
.form-status {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
  align-items: center;
  gap: 0.5rem;
}

.form-status.success {
  display: flex;
  background-color: rgba(20, 184, 166, 0.1);
  border: 1px solid var(--accent-teal);
  color: #14b8a6;
}

.form-status.error {
  display: flex;
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid #ef4444;
  color: #ef4444;
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--glass-border);
  background-color: var(--bg-canvas);
  padding: 5rem 0 2rem 0;
  transition: var(--transition-theme);
}

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

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-top: 1.5rem;
  max-width: 320px;
}

.footer-nav h4,
.footer-contact h4 {
  font-family: var(--font-brand);
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1.75rem;
  color: var(--text-primary);
}

.footer-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.footer-nav-links a:hover {
  color: var(--accent-cyan);
  padding-left: 5px;
}

.footer-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer-info-list i {
  color: var(--accent-cyan);
  font-size: 1rem;
  margin-top: 0.2rem;
}

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

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

.footer-legal {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: right;
  line-height: 1.5;
}

.footer-legal span {
  font-weight: 600;
  color: var(--text-secondary);
}

/* --- Scroll Animation Hooks (CSS-driven entry) --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* --- Responsive Adjustments --- */
@media (max-width: 1024px) {
  .section {
    padding: 6rem 0;
  }
  
  .section-title {
    font-size: 2.25rem;
  }
  
  .hero h1 {
    font-size: 3.25rem;
  }
  
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  
  .about-visual {
    order: 2;
  }
  
  .model-card h3 {
    font-size: 1.85rem;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  header {
    height: 70px;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--bg-primary);
    flex-direction: column;
    justify-content: center;
    gap: 3rem;
    padding-bottom: 5rem;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    z-index: 99;
  }
  
  .nav-links.active {
    transform: translateX(0);
  }
  
  .nav-links a {
    font-size: 1.25rem;
  }
  
  .nav-actions {
    margin-right: 1.5rem;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  
  .hero h1 {
    font-size: 2.75rem;
  }
  
  .hero p {
    margin: 0 auto 2rem auto;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .hero-visual {
    height: 320px;
  }
  
  .hero-logo-interactive {
    max-width: 280px;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .service-card {
    padding: 2.5rem 2rem;
  }
  
  .founder-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.25rem;
  }
  
  .model-grid {
    grid-template-columns: 1fr;
  }
  
  .model-card {
    padding: 3rem 2rem;
  }
  
  .contact-form {
    padding: 2.5rem 1.75rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .footer-legal {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }
  
  .hero h1 {
    font-size: 2.25rem;
  }
  
  .hero-ctas {
    flex-direction: column;
    width: 100%;
    gap: 1rem;
  }
  
  .hero-ctas .btn {
    width: 100%;
  }
  
  .section-title {
    font-size: 1.85rem;
  }
}