/* Streamux AI - Premium Day-Light & Night AI Theme Design System (Cross-Browser Optimized) */

:root {
  /* Brand Palette from Streamux Identity */
  --primary-blue: #2563EB;
  --primary-blue-hover: #1D4ED8;
  --primary-blue-glow: rgba(37, 99, 235, 0.25);
  --deep-blue: #1E3A8A;
  
  --brand-orange: #F97316;
  --brand-orange-hover: #EA580C;
  --brand-orange-glow: rgba(249, 115, 22, 0.25);
  --brand-amber: #EA580C;

  /* Accent & Gradients */
  --gradient-blue-orange: linear-gradient(135deg, #2563EB 0%, #F97316 100%);
  --gradient-text: linear-gradient(135deg, #1D4ED8 0%, #EA580C 100%);

  /* Light Theme (Default) Tokens */
  --bg-body: #F8FAFC;
  --bg-body-mesh: radial-gradient(circle at 50% 0%, #EEF2FF 0%, #F8FAFC 70%);
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFFFFF;
  --bg-card-alt: #F1F5F9;
  --bg-surface: #FFFFFF;
  --bg-input: #FFFFFF;
  --bg-banner: #FFFFFF;
  --bg-stats: #F1F5F9;
  --bg-footer: #FFFFFF;
  
  --navbar-bg: rgba(255, 255, 255, 0.88);
  --navbar-scrolled: rgba(255, 255, 255, 0.98);
  --navbar-border: rgba(226, 232, 240, 0.9);
  --navbar-mobile-bg: rgba(255, 255, 255, 0.98);

  /* Typography */
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-dim: #64748B;
  --text-highlight: #2563EB;

  /* Borders & Shadows */
  --border-light: #E2E8F0;
  --border-hover: #CBD5E1;
  --border-focus: #2563EB;
  --border-glow: rgba(37, 99, 235, 0.2);
  --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --card-shadow-hover: 0 14px 32px -4px rgba(37, 99, 235, 0.12), 0 8px 16px -2px rgba(15, 23, 42, 0.08);
  --preview-shadow: 0 20px 45px -10px rgba(15, 23, 42, 0.14), 0 10px 20px -5px rgba(15, 23, 42, 0.08);

  /* Secondary Button */
  --btn-secondary-bg: #FFFFFF;
  --btn-secondary-color: #0F172A;
  --btn-secondary-border: #CBD5E1;
  --btn-secondary-hover-bg: #F1F5F9;
  --btn-secondary-hover-border: #2563EB;

  /* NVIDIA Badging */
  --nvidia-pill-bg: #FFFFFF;
  --nvidia-pill-border: rgba(118, 185, 0, 0.6);
  --nvidia-pill-shadow: 0 2px 10px rgba(118, 185, 0, 0.15);
  --nvidia-banner-bg: linear-gradient(135deg, #FFFFFF 0%, #F1F5F9 100%);
  --nvidia-banner-border: rgba(118, 185, 0, 0.4);

  /* Badges */
  --badge-blue-bg: rgba(37, 99, 235, 0.08);
  --badge-blue-border: rgba(37, 99, 235, 0.25);
  --badge-blue-text: #1D4ED8;
  --badge-orange-bg: rgba(249, 115, 22, 0.08);
  --badge-orange-border: rgba(249, 115, 22, 0.25);
  --badge-orange-text: #C2410C;

  /* Layout Constants */
  --nav-height: 80px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Overrides */
[data-theme="dark"] {
  --gradient-text: linear-gradient(135deg, #60A5FA 0%, #F97316 100%);

  --bg-body: #0B1120;
  --bg-body-mesh: radial-gradient(circle at 50% 0%, #1e293b 0%, #0B1120 70%);
  --bg-card: #111827;
  --bg-card-hover: #1F2937;
  --bg-card-alt: rgba(17, 24, 39, 0.6);
  --bg-surface: #111827;
  --bg-input: #0B1120;
  --bg-banner: #111827;
  --bg-stats: rgba(17, 24, 39, 0.6);
  --bg-footer: #0B1120;

  --navbar-bg: rgba(11, 17, 32, 0.88);
  --navbar-scrolled: rgba(11, 17, 32, 0.98);
  --navbar-border: rgba(255, 255, 255, 0.08);
  --navbar-mobile-bg: rgba(11, 17, 32, 0.98);

  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --text-highlight: #60A5FA;

  --border-light: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.2);
  --border-focus: #2563EB;
  --border-glow: rgba(37, 99, 235, 0.3);
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  --card-shadow-hover: 0 16px 36px rgba(0, 0, 0, 0.5), 0 0 20px rgba(37, 99, 235, 0.2);
  --preview-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);

  --btn-secondary-bg: rgba(255, 255, 255, 0.05);
  --btn-secondary-color: #F8FAFC;
  --btn-secondary-border: rgba(255, 255, 255, 0.1);
  --btn-secondary-hover-bg: rgba(255, 255, 255, 0.1);
  --btn-secondary-hover-border: #2563EB;

  --nvidia-pill-bg: rgba(14, 22, 38, 0.9);
  --nvidia-pill-border: rgba(118, 185, 0, 0.4);
  --nvidia-pill-shadow: 0 4px 18px rgba(118, 185, 0, 0.15);
  --nvidia-banner-bg: linear-gradient(135deg, rgba(14, 22, 38, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
  --nvidia-banner-border: rgba(118, 185, 0, 0.3);

  --badge-blue-bg: rgba(37, 99, 235, 0.15);
  --badge-blue-border: rgba(37, 99, 235, 0.3);
  --badge-blue-text: #60A5FA;
  --badge-orange-bg: rgba(249, 115, 22, 0.15);
  --badge-orange-border: rgba(249, 115, 22, 0.3);
  --badge-orange-text: #FB923C;
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  background: var(--bg-body);
  background: var(--bg-body-mesh);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text-main);
  transition: background 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background-color: var(--navbar-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--navbar-border);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: var(--navbar-scrolled);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .navbar.scrolled {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.navbar-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

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

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  font-weight: 600;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--brand-orange);
  transition: var(--transition);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  background: var(--btn-secondary-bg);
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.05rem;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.theme-toggle-btn:hover {
  color: var(--brand-orange);
  border-color: var(--brand-orange);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--brand-orange-glow);
}

.theme-toggle-btn:active {
  transform: translateY(0);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
}

.btn-primary {
  background: var(--primary-blue);
  background: var(--gradient-blue-orange);
  color: #ffffff !important;
  box-shadow: 0 4px 20px var(--primary-blue-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px var(--brand-orange-glow);
}

.btn-secondary {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-color);
  border-color: var(--btn-secondary-border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.btn-secondary:hover {
  background: var(--btn-secondary-hover-bg);
  border-color: var(--btn-secondary-hover-border);
  color: var(--primary-blue);
  transform: translateY(-2px);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

/* Layout Containers */
.section {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.section-alt {
  background-color: var(--bg-card-alt);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 30px;
  background: var(--badge-blue-bg);
  border: 1px solid var(--badge-blue-border);
  color: var(--badge-blue-text);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.badge-orange {
  background: var(--badge-orange-bg);
  border-color: var(--badge-orange-border);
  color: var(--badge-orange-text);
}

.section-title {
  font-size: 2.75rem;
  margin-bottom: 20px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.15rem;
}

/* Hero Section */
.hero {
  padding-top: calc(var(--nav-height) + 60px);
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 24px;
  line-height: 1.15;
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-preview-container {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--preview-shadow);
  background: var(--bg-card);
}

.hero-preview-container img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.hero-preview-container:hover img {
  transform: scale(1.02);
}

/* Feature Grid Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 30px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-blue);
  box-shadow: var(--card-shadow-hover);
}

.card-img-wrapper {
  position: relative;
  width: 100%;
  height: 220px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 24px;
  background-color: var(--bg-card-alt);
}

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

.card:hover .card-img-wrapper img {
  transform: scale(1.05);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--badge-blue-bg);
  border: 1px solid var(--badge-blue-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--brand-orange);
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--text-main);
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  margin-top: 16px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 10px;
}

.feature-item i {
  color: var(--brand-orange);
}

/* Tech Pill / Tag Badges */
.tech-pill {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--badge-blue-bg);
  color: var(--badge-blue-text);
  border: 1px solid var(--badge-blue-border);
  padding: 3px 10px;
  border-radius: 6px;
  letter-spacing: 0.02em;
}

/* Video Demo Section */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}

.video-card:hover {
  border-color: var(--brand-orange);
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.video-player-container {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000000;
  position: relative;
  overflow: hidden;
}

.video-player-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background-color: #000;
}

.video-info {
  padding: 20px;
}

.video-title {
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: var(--text-main);
}

.video-tag {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--brand-orange);
  font-weight: 600;
  text-transform: uppercase;
}

/* Stats Counter */
.stats-banner {
  background: var(--bg-stats);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 50px 24px;
  margin: 60px 0;
}

.stats-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: var(--text-highlight);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

/* Contact Form */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 50px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--card-shadow);
}

.contact-info h3 {
  font-size: 2rem;
  margin-bottom: 16px;
  color: var(--text-main);
}

.contact-details {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.detail-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--badge-blue-bg);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: 1px solid var(--badge-blue-border);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px var(--primary-blue-glow);
}

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

/* Footer */
.footer {
  background: var(--bg-footer);
  border-top: 1px solid var(--border-light);
  padding: 80px 24px 40px;
}

.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 16px;
  font-size: 0.95rem;
}

.footer-title {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--text-main);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--brand-orange);
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 30px;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-dim);
  font-size: 0.88rem;
}

/* Mobile Navigation Toggle Button */
.mobile-toggle {
  display: none !important;
  background: var(--btn-secondary-bg);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.mobile-toggle:hover {
  color: var(--brand-orange);
}

/* Subpage Hero Header */
.subpage-hero {
  padding-top: 130px;
  padding-top: calc(var(--nav-height) + 50px);
  padding-bottom: 50px;
  background: var(--subpage-hero-bg, radial-gradient(circle at 50% 10%, rgba(37, 99, 235, 0.08) 0%, transparent 70%));
  border-bottom: 1px solid var(--border-light);
  text-align: center;
  position: relative;
  width: 100%;
  box-sizing: border-box;
}

.subpage-hero .badge {
  margin-bottom: 14px;
}

.subpage-hero h1 {
  font-size: 2.8rem;
  margin-bottom: 16px;
}

.subpage-hero p {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 720px;
  margin: 0 auto;
}

/* NVIDIA Inception Badges & Banner */
.nvidia-inception-pill {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--nvidia-pill-bg);
  border: 1px solid var(--nvidia-pill-border);
  padding: 8px 18px;
  border-radius: 40px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: var(--nvidia-pill-shadow);
}

.nvidia-inception-pill:hover {
  border-color: #76B900;
  box-shadow: 0 6px 24px rgba(118, 185, 0, 0.3);
  transform: translateY(-2px);
}

.nvidia-inception-pill img {
  height: 24px;
  width: auto;
}

.nvidia-banner {
  background: var(--nvidia-banner-bg);
  border: 1px solid var(--nvidia-banner-border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.nvidia-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: #76B900;
}

.nvidia-banner-text h3 {
  font-size: 1.4rem;
  color: var(--text-main);
  margin-bottom: 8px;
}

.nvidia-banner-text p {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.5;
  max-width: 780px;
}

.nvidia-tag {
  color: #76B900;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  display: inline-block;
  margin-bottom: 6px;
}

/* Founders & Leadership */
.founders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 32px;
  margin-top: 40px;
}

.founder-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.founder-card:hover {
  transform: translateY(-6px);
  border-color: var(--brand-orange);
  box-shadow: var(--card-shadow-hover);
}

.founder-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.founder-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563EB, #F97316);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 800;
  color: #FFFFFF;
  box-shadow: 0 8px 20px var(--primary-blue-glow);
  flex-shrink: 0;
}

.founder-title-info h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.founder-role {
  color: var(--brand-orange);
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.founder-credentials {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.credential-item i {
  color: var(--primary-blue);
  font-size: 0.9rem;
}

/* Innovation Roadmap */
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.roadmap-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}

.roadmap-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-blue);
  box-shadow: var(--card-shadow-hover);
}

.roadmap-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.roadmap-status.live {
  background: rgba(34, 197, 94, 0.12);
  color: #16A34A;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

[data-theme="dark"] .roadmap-status.live {
  background: rgba(34, 197, 94, 0.15);
  color: #4ADE80;
}

.roadmap-status.progress {
  background: rgba(249, 115, 22, 0.12);
  color: #EA580C;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

[data-theme="dark"] .roadmap-status.progress {
  background: rgba(249, 115, 22, 0.15);
  color: #FB923C;
}

/* Address & Location Card */
.address-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: var(--card-shadow);
}

.address-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  color: var(--text-main);
}

.address-title i {
  color: var(--brand-orange);
}

.address-text {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

.landmark-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--badge-blue-bg);
  border: 1px solid var(--badge-blue-border);
  color: var(--badge-blue-text);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  align-self: flex-start;
}

/* Optional Form Label Marker */
.optional-label {
  font-weight: 400;
  color: var(--text-dim);
  font-size: 0.82rem;
  margin-left: 6px;
}

/* Alert Notification Boxes */
.alert-box {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.alert-box.success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: #15803D;
}

[data-theme="dark"] .alert-box.success {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.4);
  color: #4ADE80;
}

.alert-box.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #B91C1C;
}

[data-theme="dark"] .alert-box.error {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.4);
  color: #F87171;
}

/* Footer & Social Enhancements */
.social-links-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.social-link-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--btn-secondary-bg);
  border: 1px solid var(--border-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.1rem;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.social-link-btn:hover {
  background: var(--brand-orange);
  color: #ffffff;
  border-color: var(--brand-orange);
  transform: translateY(-3px);
  box-shadow: 0 4px 14px var(--brand-orange-glow);
}

.social-link-btn.linkedin:hover {
  background: #0A66C2;
  border-color: #0A66C2;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(10, 102, 194, 0.5);
}

.social-link-btn.instagram:hover {
  background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
  border-color: #d6249f;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(214, 36, 159, 0.5);
}

/* Responsive Overrides */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-cta {
    justify-content: center;
  }
  .contact-container {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nvidia-banner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: inline-flex !important;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: var(--navbar-mobile-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  }

  [data-theme="dark"] .nav-menu {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
  }

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

  .nav-actions {
    display: flex;
  }
  
  .nav-actions .btn {
    display: none; /* Hide full button on mobile to save space, keeping toggle */
  }

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

  .subpage-hero h1 {
    font-size: 2.2rem;
  }

  .hero-content h1 {
    font-size: 2.3rem;
  }

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

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