:root {
  --bg: #ffffff;
  --surface: #f8fafc;
  --text: #0f172a;
  --text-muted: #64748b;
  --accent: #1769ff;
  --accent-hover: #0d4ed8;
  --accent-light: #e0f2fe;
  --border: #e2e8f0;
  --shadow: rgba(15, 40, 90, 0.08);
  --shadow-lg: rgba(15, 40, 90, 0.12);
  --shadow-xl: rgba(15, 40, 90, 0.16);
  --gradient-primary: linear-gradient(135deg, #1769ff 0%, #00c2ff 100%);
  --gradient-secondary: linear-gradient(135deg, #f6fbff 0%, #ffffff 100%);
  --gradient-accent: linear-gradient(135deg, #1769ff, #00c2ff, #8b5cf6);
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Arial;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

/* Animated background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(23, 105, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 194, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

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

/* Header */
.site-header {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
  box-shadow: 0 2px 20px rgba(15, 40, 90, 0.05);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 30px rgba(15, 40, 90, 0.15);
  border-bottom-color: var(--accent);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  min-height: 60px;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.brand h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: brandGlow 3s ease-in-out infinite;
  letter-spacing: -0.5px;
}

@keyframes brandGlow {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2); }
}

.tagline {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.header-nav {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s ease;
  position: relative;
  padding: 12px 20px;
  border-radius: 12px;
  border: 2px solid transparent;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--accent-light);
  border-radius: 10px;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: -1;
}

.nav-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.nav-link:hover::before {
  opacity: 1;
}

.nav-link:last-child {
  background: var(--gradient-primary);
  color: white;
  border-color: var(--accent);
}

.nav-link:last-child:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(23, 105, 255, 0.3);
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  position: relative;
  margin: 0;
  flex-shrink: 0;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px var(--shadow);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.mobile-menu-toggle:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--shadow);
}

.hamburger-line {
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 2px 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 1px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  margin: 0;
  padding: 0;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 360px;
  height: 100vh;
  background: var(--bg);
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.15);
  z-index: 999;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  display: block;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--border);
}

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

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--surface), var(--bg));
  position: sticky;
  top: 0;
  z-index: 1;
}

.mobile-menu-header h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.3px;
}

.mobile-menu-close {
  width: 36px;
  height: 36px;
  border: none;
  background: var(--surface);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 18px;
  color: var(--text-muted);
  border: 2px solid var(--border);
}

.mobile-menu-close:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  transform: rotate(90deg);
}

.mobile-menu-content {
  padding: 24px 0;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  border-left: 4px solid transparent;
  position: relative;
  margin: 4px 0;
}

.mobile-nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

.mobile-nav-link:hover::before {
  width: 4px;
}

.mobile-nav-link:hover {
  background: var(--accent-light);
  border-left-color: var(--accent);
  color: var(--accent);
  transform: translateX(8px);
}

.mobile-nav-icon {
  font-size: 20px;
  width: 24px;
  text-align: center;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.mobile-menu-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 24px 0;
}

.mobile-menu-section {
  padding: 0 24px;
  margin: 24px 0;
}

.mobile-menu-section h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  margin: 0 0 12px 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.mobile-menu-footer {
  padding: 24px;
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: auto;
  background: var(--surface);
}

.mobile-menu-footer p {
  margin: 0 0 8px 0;
  font-weight: 700;
  color: var(--text);
  font-size: 16px;
}

.mobile-menu-footer small {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.4;
}

/* Hide mobile menu elements on desktop */
@media (min-width: 769px) {
  .mobile-menu-toggle {
    display: none !important;
  }
  
  .mobile-menu-overlay,
  .mobile-menu {
    display: none !important;
  }
}

/* Hero Section */
.hero {
  background: var(--gradient-secondary);
  padding: 120px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 30% 20%, rgba(23, 105, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(0, 194, 255, 0.1) 0%, transparent 50%);
  animation: heroFloat 15s ease-in-out infinite;
  z-index: 0;
}

@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(1deg); }
  66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-content h2 {
  font-size: 48px;
  font-weight: 800;
  margin: 0 0 16px 0;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleShimmer 4s ease-in-out infinite;
  position: relative;
}

.hero-content h2::after {
  content: '|';
  color: var(--accent);
  font-weight: 300;
  animation: blink 1.2s infinite;
  margin-left: 6px;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  font-size: 0.9em;
  vertical-align: baseline;
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background-color: var(--accent);
  border-radius: 1px;
}

@keyframes titleShimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

.hero-content p {
  font-size: 20px;
  color: var(--text-muted);
  margin: 0 0 32px 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.btn.primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 12px rgba(23, 105, 255, 0.3);
  position: relative;
  overflow: hidden;
}

.btn.primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn.primary:hover::before {
  left: 100%;
}

.btn.primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(23, 105, 255, 0.4);
}

.btn.secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.secondary:hover {
  background: var(--border);
  transform: translateY(-1px);
}

/* Tools Section */
.tools-section {
  padding: 80px 0;
  position: relative;
  z-index: 2;
  background: var(--bg);
}

.tools-section h3 {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  margin: 0 0 48px 0;
  color: var(--text);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.tool-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px var(--shadow);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.tool-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px var(--shadow-xl);
  border-color: var(--accent);
}

/* Card Thumbnail */
.card-thumbnail {
  position: relative;
  height: 160px;
  overflow: hidden;
  border-radius: 20px 20px 0 0;
  background: var(--surface);
  border: 1px solid var(--border);
}

.thumbnail-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.3s ease;
  background: var(--surface);
  border: none;
  display: block;
}

/* Fallback for missing images */
.thumbnail-image:not([src]),
.thumbnail-image[src=""] {
  background: linear-gradient(135deg, var(--accent-light), var(--surface));
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumbnail-image:not([src])::after,
.thumbnail-image[src=""]::after {
  content: "📱";
  font-size: 48px;
  opacity: 0.6;
}

/* Image loading states */
.thumbnail-image[src] {
  min-height: 100%;
  min-width: 100%;
}

/* Ensure images are visible */
.card-thumbnail img {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  display: block !important;
}

.tool-card:hover .thumbnail-image {
  transform: scale(1.05);
}

.thumbnail-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(18, 101, 255, 0.4), rgba(0, 22, 54, 0.4));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.play-icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent);
  transform: scale(1);
  transition: all 0.3s ease;
  text-decoration: none;
  cursor: pointer;
}

.play-icon:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 1);
  color: var(--accent-hover);
}

.tool-card:hover .play-icon {
  transform: scale(1.1);
}

/* Card Content */
.card-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.tool-icon {
  font-size: 24px;
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-3px); }
}

.tool-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  color: var(--text);
  flex: 1;
}

.tool-card p {
  color: var(--text-muted);
  margin: 0 0 16px 0;
  line-height: 1.5;
  flex: 1;
  font-size: 14px;
}

.tool-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
  margin-top: auto;
}

.feature {
  background: var(--surface);
  color: var(--text);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: -1;
}

.feature:hover {
  color: white;
  border-color: var(--accent);
  transform: translateY(-2px);
}

.feature:hover::before {
  left: 0;
  opacity: 1;
}

/* Card Button */
.card-content .btn {
  margin-top: auto;
  align-self: flex-start;
  width: 100%;
  justify-content: center;
}

/* About Section */
.about-section {
  background: var(--surface);
  padding: 80px 0;
}

.about-section h3 {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  margin: 0 0 48px 0;
  color: var(--text);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  font-size: 18px;
  color: var(--text-muted);
  margin: 0 0 32px 0;
  line-height: 1.7;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
  margin: 40px 0;
}

.feature-category {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px var(--shadow);
}

.feature-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.feature-category:hover::before {
  transform: scaleX(1);
}

.feature-category:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--shadow-xl);
  border-color: var(--accent);
}

.feature-category h4 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 20px 0;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.3px;
}

.feature-category ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-category li {
  padding: 8px 0;
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 15px;
  position: relative;
  padding-left: 24px;
  transition: color 0.2s ease;
}

.feature-category li:hover {
  color: var(--text);
}

.feature-category li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
  font-size: 16px;
  top: 8px;
}

.feature-category strong {
  color: var(--text);
  font-weight: 600;
}

/* Advanced Features */
.advanced-features {
  margin-top: 60px;
  padding: 40px;
  background: linear-gradient(135deg, var(--accent-light), rgba(255, 255, 255, 0.9));
  border-radius: 24px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.advanced-features::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(23, 105, 255, 0.05) 0%, transparent 70%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-20px, -20px) rotate(180deg); }
}

.advanced-features h4 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 32px 0;
  color: var(--text);
  text-align: center;
  position: relative;
  z-index: 1;
  letter-spacing: -0.5px;
}

.advanced-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 1;
}

.advanced-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--bg);
  border-radius: 16px;
  border: 1px solid var(--border);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px var(--shadow);
}

.advanced-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.advanced-item:hover::before {
  transform: scaleX(1);
}

.advanced-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px var(--shadow-lg);
  border-color: var(--accent);
}

.advanced-icon {
  font-size: 28px;
  flex-shrink: 0;
  margin-top: 4px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.advanced-content h5 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px 0;
  color: var(--text);
  letter-spacing: -0.2px;
}

.advanced-content p {
  font-size: 15px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 24px;
  margin-top: 48px;
  padding: 32px;
  background: var(--bg);
  border-radius: 20px;
  border: 1px solid var(--border);
}

.stat {
  text-align: center;
  padding: 20px 16px;
  background: var(--surface);
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}

.stat:hover::before {
  opacity: 0.05;
}

.stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px var(--shadow-lg);
}

.stat-number {
  font-size: 36px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
  position: relative;
  z-index: 1;
}

.stat-label {
  color: var(--text-muted);
  font-weight: 500;
  position: relative;
  z-index: 1;
}

/* Footer */
.site-footer {
  background: var(--text);
  color: white;
  padding: 48px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand h4 {
  margin: 0 0 8px 0;
  font-size: 20px;
  font-weight: 700;
}

.footer-brand p {
  color: #94a3b8;
  margin: 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 32px;
}

.link-group h5 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
}

.link-group a {
  display: block;
  color: #94a3b8;
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s ease;
}

.link-group a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  color: #94a3b8;
}

.footer-bottom a {
  color: var(--accent);
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* Enhanced tool card animations */
.tool-card:nth-child(1) { animation-delay: 0.1s; }
.tool-card:nth-child(2) { animation-delay: 0.2s; }
.tool-card:nth-child(3) { animation-delay: 0.3s; }

/* Gradient text effects */
.gradient-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Enhanced button styles */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

/* Loading animation */
body:not(.loaded) {
  overflow: hidden;
}

body:not(.loaded)::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

body:not(.loaded)::before {
  content: '';
  position: fixed;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top: 4px solid var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  z-index: 10000;
  transform: translate(-50%, -50%);
}

@keyframes spin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Scroll indicator */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--border);
  z-index: 1000;
}

.scroll-progress {
  height: 100%;
  background: var(--gradient-primary);
  width: 0%;
  transition: width 0.1s ease;
}

/* Responsive */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
  }
  
  .advanced-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .hero-content h2 {
    font-size: 36px;
  }
  
  .hero-content p {
    font-size: 18px;
  }
  
  .tools-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .tool-card {
    max-width: 400px;
    margin: 0 auto;
  }
  
  .card-thumbnail {
    height: 140px;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .feature-category {
    padding: 24px;
  }
  
  .advanced-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .advanced-item {
    padding: 20px;
  }
  
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 24px;
  }
  
  .advanced-features {
    padding: 24px;
    margin-top: 40px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .header-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex !important;
  }
  
  .mobile-menu-overlay {
    display: block !important;
  }
  
  .mobile-menu {
    display: block !important;
  }
  
  .site-header .container {
    padding: 12px 16px;
    min-height: 50px;
  }
  
  .brand h1 {
    font-size: 20px;
  }
  
  .tagline {
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero {
    padding: 60px 0;
  }
  
  .hero-content h2 {
    font-size: 28px;
  }
  
  .tools-section,
  .about-section {
    padding: 60px 0;
  }
  
  .tool-card {
    padding: 0;
  }
  
  .card-content {
    padding: 16px;
  }
  
  .feature-category {
    padding: 20px;
  }
  
  .advanced-item {
    padding: 16px;
    flex-direction: column;
    text-align: center;
  }
  
  .advanced-icon {
    margin: 0 auto 12px;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px;
  }
  
  .advanced-features {
    padding: 20px;
  }
  
  .site-header .container {
    padding: 12px;
    min-height: 70px;
  }
  
  .brand h1 {
    font-size: 22px;
  }
  
  .nav-link {
    padding: 8px 12px;
    font-size: 13px;
  }
  
  .features-grid {
    gap: 20px;
  }
  
  .advanced-grid {
    gap: 12px;
  }
}