/* =============================================
   NOVAURAL — Design System
   ============================================= */

/* Google Fonts — loaded via <link> in HTML for faster rendering */
/* @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap'); */
/* @import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;600;700;800&display=swap'); */

/* CSS Variables */
:root {
  /* Brand colors — derived from logo */
  --navy-900: #061224;
  --navy-800: #0B2545;
  --navy-700: #0F3460;
  --navy-600: #16498A;
  --teal-500: #2EC4B6;
  --teal-400: #4DD8CC;
  --teal-300: #7BE5DB;
  --teal-200: #B3F0EA;
  --cyan-accent: #00D4FF;

  /* Neutrals */
  --white: #FFFFFF;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;

  /* Semantic */
  --text-primary: #E2E8F0;
  --text-secondary: #94A3B8;
  --text-accent: var(--teal-400);
  --bg-primary: var(--navy-900);
  --bg-card: rgba(11, 37, 69, 0.6);
  --bg-card-hover: rgba(11, 37, 69, 0.85);
  --border-subtle: rgba(46, 196, 182, 0.15);
  --border-glow: rgba(46, 196, 182, 0.35);

  /* Glass effect */
  --glass-bg: rgba(11, 37, 69, 0.4);
  --glass-border: rgba(46, 196, 182, 0.12);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  /* Spacing */
  --section-padding: 6rem 0;
  --container-max: 1200px;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

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

/* Background – dot grid pattern (scientific precision) */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle, rgba(77, 216, 204, 0.10) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: -2;
  pointer-events: none;
}

/* Background – soft radial orbs for depth */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 600px 600px at 15% 20%, rgba(46, 196, 182, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 85% 60%, rgba(0, 212, 255, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 700px 700px at 50% 90%, rgba(15, 52, 96, 0.25) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

/* =============================================
   NAVIGATION
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.4s ease;
  backdrop-filter: blur(0px);
}

.navbar.scrolled {
  background: rgba(6, 18, 36, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0.6rem 0;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem 0 0;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--white);
  margin-right: 4rem;
}

.nav-logo img {
  height: 74px;
  width: auto;
  transition: transform 0.4s ease, filter 0.4s ease;
}

.nav-logo:hover img {
  transform: scale(1.1);
  filter: drop-shadow(0 0 6px rgba(77, 216, 204, 0.5));
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo-brand {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--white);
  display: flex;
  align-items: center;
}

.nav-logo-brand .logo-o {
  color: var(--teal-400);
  transition: text-shadow 0.4s ease, transform 0.4s ease;
  display: inline-block;
}

.nav-logo:hover .logo-o {
  text-shadow: 0 0 12px rgba(77, 216, 204, 0.6), 0 0 24px rgba(77, 216, 204, 0.3);
  transform: scale(1.08) rotate(360deg);
}

.nav-logo-sub {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--gray-400);
  margin-top: 3px;
}

.nav-logo-sub .sub-dot {
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--teal-400);
  vertical-align: middle;
  margin: 0 0.3em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.3rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--teal-500);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--teal-400);
}

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

.nav-links a.active {
  color: var(--teal-400);
}

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

.nav-cta {
  background: linear-gradient(135deg, var(--teal-500), var(--cyan-accent));
  color: var(--navy-900) !important;
  padding: 0.6rem 1.5rem;
  border-radius: 8px;
  font-weight: 600 !important;
  white-space: nowrap;
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(46, 196, 182, 0.4);
  color: var(--navy-900) !important;
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
  border-radius: 2px;
}

/* =============================================
   LANGUAGE SELECTOR
   ============================================= */
.lang-selector-container {
  display: flex;
  align-items: center;
  margin-left: 0.5rem;
}

.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(46, 196, 182, 0.08);
  border: 1px solid rgba(46, 196, 182, 0.2);
  color: var(--text-secondary);
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-family: var(--font-family);
  font-weight: 500;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.lang-btn:hover {
  background: rgba(46, 196, 182, 0.15);
  border-color: rgba(46, 196, 182, 0.4);
  color: var(--teal-400);
}

.lang-code {
  font-weight: 600;
  letter-spacing: 0.05em;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 160px;
  background: rgba(6, 18, 36, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 0.35rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.25s ease;
  z-index: 2000;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.lang-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font-family);
  font-weight: 400;
  transition: all 0.2s ease;
}

.lang-option:hover {
  background: rgba(46, 196, 182, 0.1);
  color: var(--teal-400);
}

.lang-option.active {
  background: rgba(46, 196, 182, 0.15);
  color: var(--teal-400);
  font-weight: 600;
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: 8rem 2rem 6rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 800px;
  height: 800px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(46, 196, 182, 0.06) 0%, transparent 70%);
  animation: heroGlow 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes heroGlow {
  0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.3); }
}

/* Animated audio waveforms */
.hero-waveforms {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.waveform {
  position: absolute;
  width: 200%;
  height: 40%;
}

.waveform-1 {
  top: 25%;
  animation: waveScroll 18s linear infinite;
}

.waveform-2 {
  top: 45%;
  animation: waveScroll 14s linear infinite reverse;
}

.waveform-3 {
  top: 60%;
  animation: waveScroll 22s linear infinite;
}

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

.hero-content {
  max-width: 800px;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  color: var(--teal-400);
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--teal-500);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--teal-400), var(--cyan-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text {
  background: linear-gradient(135deg, var(--teal-400), var(--cyan-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--teal-500), var(--cyan-accent));
  color: var(--navy-900);
  padding: 0.9rem 2rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 30px rgba(46, 196, 182, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-primary);
  padding: 0.9rem 2rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  border-color: var(--teal-500);
  background: rgba(46, 196, 182, 0.08);
  transform: translateY(-2px);
}

/* Animated wave in hero background */
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  opacity: 0.08;
}

/* =============================================
   SECTION STYLES
   ============================================= */
section {
  padding: var(--section-padding);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--teal-400);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--teal-500);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.7;
}

/* =============================================
   ABOUT / COMPANY SECTION
   ============================================= */
.about {
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.about-visual {
  position: relative;
}

.about-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 3rem;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--cyan-accent));
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
  background: rgba(46, 196, 182, 0.05);
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.stat-item:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--teal-400);
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.about-text p strong {
  color: var(--text-primary);
}

/* Mission items */
.mission-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.mission-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  background: rgba(46, 196, 182, 0.04);
  border-radius: 12px;
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.mission-item:hover {
  border-color: var(--border-subtle);
  background: rgba(46, 196, 182, 0.08);
}

.mission-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.mission-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.mission-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}

/* =============================================
   PROBLEM SECTION
   ============================================= */
.problem {
  position: relative;
}

.problem-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.problem-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(16px);
  transition: all 0.4s ease;
}

.problem-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 107, 107, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.problem-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.problem-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.problem-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* =============================================
   PRODUCT SECTION
   ============================================= */
.product {
  position: relative;
}

.product-showcase {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.product-image-wrapper {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.product-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

.product-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  border: 1px solid rgba(46, 196, 182, 0.1);
  pointer-events: none;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.feature-item:hover {
  border-color: var(--border-glow);
  transform: translateX(6px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, rgba(46, 196, 182, 0.15), rgba(0, 212, 255, 0.08));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.feature-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Patent badge */
.patent-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, rgba(46, 196, 182, 0.12), rgba(0, 212, 255, 0.06));
  border: 1px solid var(--border-glow);
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--teal-400);
  margin-top: 1.5rem;
}

.patent-badge .shield {
  font-size: 1.1rem;
}

/* =============================================
   HOW IT WORKS
   ============================================= */
.how-it-works {
  position: relative;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--teal-500), var(--teal-500), transparent);
  opacity: 0.3;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--teal-500), var(--cyan-accent));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--navy-900);
  margin: 0 auto 1.25rem;
  box-shadow: 0 4px 20px rgba(46, 196, 182, 0.3);
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* =============================================
   BENEFITS SECTION
   ============================================= */
.benefits {
  position: relative;
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.benefit-column {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  transition: all 0.4s ease;
}

.benefit-column:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
}

.benefit-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.benefit-header-icon {
  font-size: 2.5rem;
}

.benefit-header h3 {
  font-size: 1.3rem;
  font-weight: 700;
}

.benefit-header p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

.benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.benefit-list li .check {
  color: var(--teal-400);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact {
  text-align: center;
  position: relative;
}

.contact-card {
  max-width: 600px;
  margin: 3rem auto 0;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 3.5rem;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--cyan-accent));
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--teal-400);
  text-decoration: none;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.contact-email:hover {
  color: var(--cyan-accent);
  transform: translateY(-2px);
}

.contact-note {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 1.5rem;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  border-top: 1px solid var(--glass-border);
  padding: 2.5rem 0 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem 3rem;
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
}

.footer-logo span {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-company-info {
  font-size: 0.75rem;
  color: var(--gray-500);
  line-height: 1.6;
}

.footer-company-info .footer-address {
  color: var(--gray-400);
  font-style: normal;
}

.footer-company-info .footer-reg {
  margin-top: 0.25rem;
  color: var(--gray-500);
  font-size: 0.7rem;
}

.footer-links {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 1.2rem;
  justify-content: flex-end;
  align-items: center;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--teal-400);
}

.footer-legal {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--gray-600);
  text-align: center;
}

/* =============================================
   CURRENT STAGE / TIMELINE
   ============================================= */
.stage {
  position: relative;
}

.timeline {
  max-width: 720px;
  margin: 3rem auto;
  position: relative;
  padding-left: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--teal-500), var(--teal-500) 60%, var(--gray-600) 60%, var(--gray-600));
}

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

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -3rem;
  top: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 1;
}

.timeline-item.completed .timeline-marker {
  background: linear-gradient(135deg, var(--teal-500), var(--cyan-accent));
  color: var(--navy-900);
  box-shadow: 0 0 12px rgba(46, 196, 182, 0.4);
}

.timeline-item.current .timeline-marker {
  background: var(--navy-800);
  border: 2px solid var(--teal-500);
  color: var(--teal-400);
  box-shadow: 0 0 16px rgba(46, 196, 182, 0.5);
  animation: pulse-dot 2s infinite;
  font-size: 0.9rem;
}

.timeline-item.upcoming .timeline-marker {
  background: var(--navy-800);
  border: 2px solid var(--gray-600);
  color: var(--gray-500);
}

.timeline-content {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 1.5rem 1.75rem;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.timeline-item.current .timeline-content {
  border-color: var(--border-glow);
  background: rgba(46, 196, 182, 0.06);
}

.timeline-content:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.timeline-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.timeline-item.current .timeline-content h4 {
  color: var(--teal-400);
}

.timeline-item.upcoming .timeline-content h4 {
  color: var(--gray-400);
}

.timeline-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-item.upcoming .timeline-content p {
  color: var(--gray-500);
}

/* Stage CTA */
.stage-cta {
  margin-top: 3rem;
}

.stage-cta-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 3rem;
  backdrop-filter: blur(16px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.stage-cta-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--cyan-accent), var(--teal-500));
}

.stage-cta-card h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.stage-cta-card > p {
  color: var(--text-secondary);
  max-width: 660px;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

.partner-types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  text-align: left;
}

.partner-type {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: rgba(46, 196, 182, 0.04);
  border-radius: 14px;
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.partner-type:hover {
  border-color: var(--border-glow);
  background: rgba(46, 196, 182, 0.08);
  transform: translateY(-3px);
}

.partner-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.partner-type h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.partner-type p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* =============================================
   COLLABORATE PAGE
   ============================================= */
.collab-hero {
  padding-top: 10rem;
  padding-bottom: 4rem;
  text-align: center;
}

/* Why Partner */
.why-partner {
  position: relative;
}

.why-partner-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.why-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(16px);
  transition: all 0.4s ease;
}

.why-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.why-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.why-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.why-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Partnership type cards */
.collab-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.collab-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  transition: all 0.4s ease;
  display: flex;
  flex-direction: column;
}

.collab-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.collab-card-header {
  padding: 1.75rem 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}

.collab-card-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 2rem;
  right: 2rem;
  height: 1px;
  background: var(--border-subtle);
}

.collab-card-header.nhs {
  background: linear-gradient(135deg, rgba(46, 196, 182, 0.08), transparent);
}

.collab-card-header.private {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), transparent);
}

.collab-card-header.research {
  background: linear-gradient(135deg, rgba(168, 130, 255, 0.08), transparent);
}

.collab-card-header.consumer {
  background: linear-gradient(135deg, rgba(255, 183, 77, 0.08), transparent);
}

.collab-card-icon {
  font-size: 2rem;
}

.collab-card-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.collab-card-body {
  padding: 1.75rem 2rem 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.collab-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.collab-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex-grow: 1;
}

.collab-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 1.2rem;
  position: relative;
  line-height: 1.5;
}

.collab-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--teal-400);
  font-weight: 700;
  font-size: 0.8rem;
}

.collab-ideal {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.collab-ideal strong {
  color: var(--teal-400);
}

/* =============================================
   ENQUIRY FORM
   ============================================= */
.enquiry-form-section {
  text-align: center;
}

.form-wrapper {
  max-width: 720px;
  margin: 0 auto;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 3rem;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.form-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-500), var(--cyan-accent));
}

.partner-form {
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1.5rem;
}

.form-group.full-width {
  margin-bottom: 1.5rem;
}

.form-group label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-group label .required {
  color: var(--teal-400);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(6, 18, 36, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 0.92rem;
  transition: all 0.3s ease;
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-500);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal-500);
  box-shadow: 0 0 0 3px rgba(46, 196, 182, 0.12);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-group select option {
  background: var(--navy-800);
  color: var(--text-primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  justify-content: center;
  margin-top: 0.5rem;
  font-size: 1.05rem;
  padding: 1rem;
}

.form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.form-disclaimer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--gray-500);
  margin-top: 1.25rem;
}

/* Form success state */
.form-success {
  text-align: center;
  padding: 3rem 2rem;
}

.form-success .success-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--teal-500), var(--cyan-accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--navy-900);
  margin: 0 auto 1.5rem;
  box-shadow: 0 4px 24px rgba(46, 196, 182, 0.4);
}

.form-success h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.form-success p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Scroll-triggered animations */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1200px) {
  .nav-links {
    gap: 1rem;
  }

  .nav-links a {
    font-size: 0.82rem;
  }

  .nav-cta {
    padding: 0.5rem 1rem;
    font-size: 0.82rem;
  }

  .nav-logo-brand {
    font-size: 1.4rem;
  }

  .nav-logo-sub {
    font-size: 0.5rem;
  }

  .nav-logo img {
    height: 40px;
  }

  .nav-logo {
    margin-right: 1rem;
  }
}

@media (max-width: 1024px) {
  .nav-links {
    gap: 0.6rem;
  }

  .nav-links a {
    font-size: 0.78rem;
  }

  .nav-cta {
    padding: 0.45rem 0.8rem;
    font-size: 0.78rem;
  }

  .nav-logo-brand {
    font-size: 1.2rem;
  }

  .nav-logo-sub {
    font-size: 0.45rem;
  }

  .nav-logo img {
    height: 34px;
  }

  .nav-logo {
    margin-right: 0.5rem;
  }

  .about-grid,
  .product-showcase {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .problem-cards {
    grid-template-columns: 1fr 1fr;
  }

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

  .steps::before {
    display: none;
  }

  .partner-types {
    grid-template-columns: 1fr;
  }

  .collab-cards {
    grid-template-columns: 1fr;
  }

  .why-partner-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  :root {
    --section-padding: 4rem 0;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(6, 18, 36, 0.98);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    backdrop-filter: blur(20px);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    font-size: 1.2rem;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .lang-selector-container {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1002;
    display: none;
  }

  .nav-links.active ~ .lang-selector-container {
    display: flex;
  }

  .lang-dropdown {
    bottom: calc(100% + 6px);
    top: auto;
    right: 50%;
    transform: translateX(50%) translateY(8px);
  }

  .lang-dropdown.open {
    transform: translateX(50%) translateY(0);
  }

  .hero {
    padding: 7rem 1.5rem 4rem;
  }

  .problem-cards {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-brand {
    align-items: center;
  }

  .footer-logo {
    justify-content: center;
  }

  .footer-links {
    justify-content: center;
    gap: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .form-wrapper {
    padding: 2rem 1.5rem;
  }

  .stage-cta-card {
    padding: 2rem 1.5rem;
  }

  .collab-hero {
    padding-top: 8rem;
  }

  .collab-card-body {
    padding: 1.5rem;
  }

  .collab-card-header {
    padding: 1.25rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

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

  .contact-card {
    padding: 2rem 1.5rem;
  }

  .contact-email {
    font-size: 1rem;
  }

  .timeline {
    padding-left: 2.5rem;
  }

  .timeline-marker {
    left: -2.5rem;
    width: 26px;
    height: 26px;
    font-size: 0.7rem;
  }

  .timeline-content {
    padding: 1.25rem;
  }
}