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

:root {
  --bg-color: #ffffff;
  --text-color: #333;
  --border-color: #ddd;
  --hover-color: #666;
  --footer-color: #666;
  --grid-color: rgba(0, 0, 0, 0.03);
  --data-point-color: rgba(0, 0, 0, 0.1);
  --connection-line-color: rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
  --bg-color: #1a1a1a;
  --text-color: #e0e0e0;
  --border-color: #444;
  --hover-color: #aaa;
  --footer-color: #999;
  --grid-color: rgba(255, 255, 255, 0.05);
  --data-point-color: rgba(255, 255, 255, 0.15);
  --connection-line-color: rgba(255, 255, 255, 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  transition: background-color 0.3s ease, color 0.3s ease;
  position: relative;
  overflow-x: hidden;
}

/* Data Background */
.data-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

/* Animated Grid Pattern */
.grid-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

/* Connection Lines */
.connection-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.connection-line {
  stroke: var(--connection-line-color);
  stroke-width: 1;
  stroke-dasharray: 3, 3;
  animation: linePulse 4s ease-in-out infinite;
  transition: stroke 0.3s ease;
}

.connection-line:nth-child(1) { animation-delay: 0s; }
.connection-line:nth-child(2) { animation-delay: 0.3s; }
.connection-line:nth-child(3) { animation-delay: 0.6s; }
.connection-line:nth-child(4) { animation-delay: 0.9s; }
.connection-line:nth-child(5) { animation-delay: 1.2s; }
.connection-line:nth-child(6) { animation-delay: 1.5s; }
.connection-line:nth-child(7) { animation-delay: 1.8s; }
.connection-line:nth-child(8) { animation-delay: 0.2s; }
.connection-line:nth-child(9) { animation-delay: 0.5s; }
.connection-line:nth-child(10) { animation-delay: 0.8s; }
.connection-line:nth-child(11) { animation-delay: 1.1s; }
.connection-line:nth-child(12) { animation-delay: 1.4s; }

@keyframes linePulse {
  0%, 100% {
    opacity: 0.3;
    stroke-dashoffset: 0;
  }
  50% {
    opacity: 0.6;
    stroke-dashoffset: 6;
  }
}

/* Animated Data Points */
.data-points {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.data-point {
  position: absolute;
  width: 8px;
  height: 8px;
  background-color: var(--data-point-color);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
  transition: background-color 0.3s ease;
}

.data-point:nth-child(1) {
  left: 10%;
  top: 20%;
  animation-delay: 0s;
  animation-duration: 6s;
}

.data-point:nth-child(2) {
  left: 25%;
  top: 60%;
  animation-delay: 1s;
  animation-duration: 8s;
}

.data-point:nth-child(3) {
  left: 45%;
  top: 15%;
  animation-delay: 2s;
  animation-duration: 7s;
}

.data-point:nth-child(4) {
  left: 60%;
  top: 75%;
  animation-delay: 0.5s;
  animation-duration: 9s;
}

.data-point:nth-child(5) {
  left: 75%;
  top: 35%;
  animation-delay: 1.5s;
  animation-duration: 6.5s;
}

.data-point:nth-child(6) {
  left: 15%;
  top: 80%;
  animation-delay: 2.5s;
  animation-duration: 7.5s;
}

.data-point:nth-child(7) {
  left: 35%;
  top: 45%;
  animation-delay: 0.8s;
  animation-duration: 8.5s;
}

.data-point:nth-child(8) {
  left: 55%;
  top: 25%;
  animation-delay: 1.8s;
  animation-duration: 6.8s;
}

.data-point:nth-child(9) {
  left: 80%;
  top: 65%;
  animation-delay: 0.3s;
  animation-duration: 7.2s;
}

.data-point:nth-child(10) {
  left: 20%;
  top: 50%;
  animation-delay: 2.2s;
  animation-duration: 8.2s;
}

.data-point:nth-child(11) {
  left: 40%;
  top: 85%;
  animation-delay: 1.2s;
  animation-duration: 6.2s;
}

.data-point:nth-child(12) {
  left: 70%;
  top: 10%;
  animation-delay: 0.7s;
  animation-duration: 9.2s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.6;
  }
  25% {
    transform: translate(20px, -30px) scale(1.2);
    opacity: 0.8;
  }
  50% {
    transform: translate(-15px, 20px) scale(0.9);
    opacity: 0.7;
  }
  75% {
    transform: translate(30px, 15px) scale(1.1);
    opacity: 0.9;
  }
}

header {
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
  margin-bottom: 40px;
  transition: border-color 0.3s ease;
  position: relative;
  z-index: 1;
}

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

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: bold;
  font-size: 1.2em;
  transition: color 0.3s ease;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  align-items: center;
}

nav ul a {
  font-weight: normal;
  font-size: 1em;
}

nav a:hover {
  color: var(--hover-color);
}

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

.lang-toggle {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
}

.lang-toggle:hover {
  background-color: var(--border-color);
  transform: scale(1.1);
}

.lang-code {
  display: inline-block;
}

#theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-color);
}

#theme-toggle:hover {
  background-color: var(--border-color);
  transform: scale(1.1);
}

.theme-icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

#theme-toggle:hover .theme-icon {
  transform: rotate(15deg);
}

main {
  min-height: 60vh;
  padding: 20px 0;
  position: relative;
  z-index: 1;
}

h1 {
  margin-bottom: 20px;
}

h2 {
  margin-top: 40px;
  margin-bottom: 20px;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-color);
}

h3 {
  margin-top: 30px;
  margin-bottom: 15px;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-color);
}

/* Product Page Styles */
.product-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

.product-header {
  margin-bottom: 50px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  margin-bottom: 30px;
  color: var(--text-color);
  opacity: 0.7;
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  padding: 8px 0;
}

.back-link:hover {
  opacity: 1;
  color: var(--hover-color);
  transform: translateX(-5px);
}

.product-title-section {
  margin-bottom: 20px;
}

.product-title-section h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--text-color), var(--hover-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.product-subtitle {
  font-size: 1.375rem;
  color: var(--text-color);
  opacity: 0.8;
  font-weight: 400;
  line-height: 1.5;
}

/* Product Hero Section */
.product-hero {
  margin: 50px 0;
  padding: 40px 0;
}

.product-hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.product-intro {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.product-intro-text {
  font-size: 1.5rem;
  line-height: 1.6;
  color: var(--text-color);
  font-weight: 500;
  margin-bottom: 15px;
}

.product-intro-description {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-color);
  opacity: 0.8;
}

/* App Mockup */
.product-app-preview {
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-mockup {
  width: 100%;
  max-width: 400px;
  background: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

.app-mockup:hover {
  transform: translateY(-5px);
}

.app-mockup-header {
  background: var(--border-color);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.app-mockup-dots {
  display: flex;
  gap: 6px;
}

.app-mockup-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-color);
  opacity: 0.3;
}

.app-mockup-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-color);
  opacity: 0.7;
}

.app-mockup-content {
  padding: 20px;
  min-height: 400px;
  background: var(--bg-color);
}

/* Personal App Mockup */
.personal-screen {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mockup-nav {
  display: flex;
  gap: 8px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.mockup-nav-item {
  height: 8px;
  border-radius: 4px;
  background: var(--border-color);
  flex: 1;
}

.mockup-nav-item.active {
  background: #6366f1;
  flex: 1.5;
}

.mockup-chart {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 150px;
  padding: 20px;
  background: rgba(99, 102, 241, 0.05);
  border-radius: 8px;
}

.chart-bar {
  flex: 1;
  background: linear-gradient(180deg, #6366f1, #818cf8);
  border-radius: 4px 4px 0 0;
  min-height: 20px;
  animation: chartGrow 1s ease-out;
}

@keyframes chartGrow {
  from { height: 0; }
}

.mockup-stats {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-stat {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--border-color);
  border-radius: 8px;
}

.stat-icon {
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 8px;
}

.stat-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-label {
  height: 8px;
  width: 60%;
  background: var(--border-color);
  border-radius: 4px;
}

.stat-value {
  height: 12px;
  width: 40%;
  background: var(--border-color);
  border-radius: 4px;
}

/* Business App Mockup */
.business-screen {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 15px;
}

.mockup-sidebar {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-item {
  height: 40px;
  background: var(--border-color);
  border-radius: 6px;
}

.sidebar-item.active {
  background: #ec4899;
  opacity: 0.8;
}

.mockup-main {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mockup-table-header {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
}

.table-col {
  height: 10px;
  background: var(--border-color);
  border-radius: 4px;
}

.mockup-table-row {
  height: 35px;
  background: var(--border-color);
  border-radius: 6px;
  opacity: 0.6;
}

.product-content {
  line-height: 1.8;
  font-size: 1.125rem;
}

.product-content > p:first-child {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 30px;
  padding: 20px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 8px;
  border-left: 4px solid #6366f1;
  color: var(--text-color);
}

.product-content h2 {
  margin-top: 50px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
}

.product-content h3 {
  margin-top: 35px;
  margin-bottom: 15px;
  color: var(--text-color);
}

.product-content ul {
  margin-left: 0;
  margin-bottom: 25px;
  list-style: none;
  padding-left: 0;
}

.product-content li {
  margin-bottom: 12px;
  padding-left: 30px;
  position: relative;
}

.product-content li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--hover-color);
  font-weight: bold;
}

.product-content strong {
  color: var(--text-color);
  font-weight: 600;
}

.product-features-detailed {
  max-width: 900px;
  margin: 60px auto;
  line-height: 1.8;
  font-size: 1.125rem;
}

.product-features-detailed h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-top: 50px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-color);
}

.product-features-detailed h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 35px;
  margin-bottom: 15px;
  color: var(--text-color);
}

.product-features-detailed ul {
  margin-left: 0;
  margin-bottom: 25px;
  list-style: none;
  padding-left: 0;
}

.product-features-detailed li {
  margin-bottom: 12px;
  padding-left: 30px;
  position: relative;
}

.product-features-detailed li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--hover-color);
  font-weight: bold;
}

.product-features-detailed strong {
  color: var(--text-color);
  font-weight: 600;
}

.product-cta {
  text-align: center;
  margin: 60px 0;
  padding: 40px 0;
}

.cta-button {
  display: inline-block;
  padding: 18px 40px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1.25rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.cta-primary {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

.cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
  color: white;
}

.cta-secondary {
  background: transparent;
  color: #ec4899;
  border-color: #ec4899;
}

.cta-secondary:hover {
  background: #ec4899;
  color: white;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(236, 72, 153, 0.3);
}


/* Responsive Product Page */
@media (max-width: 768px) {
  .product-page {
    padding: 20px 15px;
  }

  .product-title-section h1 {
    font-size: 2.25rem;
  }

  .product-subtitle {
    font-size: 1.125rem;
  }

  .product-hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .product-app-preview {
    order: -1;
  }

  .app-mockup {
    max-width: 100%;
  }

  .product-features-detailed {
    font-size: 1rem;
  }

  .product-content {
    font-size: 1rem;
  }

  .product-content > p:first-child {
    font-size: 1.125rem;
    padding: 15px;
  }

  .cta-button {
    font-size: 1.125rem;
    padding: 16px 32px;
  }
}

/* Contact Page */
.contact-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 20px;
}

.contact-header {
  text-align: center;
  margin-bottom: 50px;
}

.contact-header h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.contact-intro {
  font-size: 1.25rem;
  color: var(--text-color);
  opacity: 0.8;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

/* FAQ Section */
.faq-section {
  margin-bottom: 0;
}

.faq-section h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-color);
  letter-spacing: -0.02em;
}

.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-color);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.3s ease;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

.faq-item:hover {
  border-color: var(--hover-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

.faq-item[aria-expanded="true"] {
  border-color: var(--hover-color);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.2);
  background: rgba(99, 102, 241, 0.02);
}

.faq-question-btn {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-color);
  transition: all 0.2s ease;
  font-family: inherit;
  gap: 16px;
  position: relative;
}

.faq-question-btn:hover {
  background: rgba(99, 102, 241, 0.06);
  color: var(--hover-color);
}

.faq-question-btn:focus {
  outline: none;
  background: rgba(99, 102, 241, 0.1);
}

.faq-item[aria-expanded="true"] .faq-question-btn {
  background: rgba(99, 102, 241, 0.05);
  color: var(--hover-color);
}

.faq-question-btn span {
  flex: 1;
  line-height: 1.5;
}

.faq-icon {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  color: var(--text-color);
  opacity: 0.7;
  width: 20px;
  height: 20px;
}

.faq-item[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
  opacity: 1;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
              padding 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.2s ease,
              margin 0.4s ease;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-color);
  opacity: 0;
  padding: 0;
  margin: 0;
  display: block;
  visibility: hidden;
}

.faq-item[aria-expanded="true"] .faq-answer {
  max-height: 1000px;
  padding: 0 24px 20px 24px;
  margin-top: 0;
  opacity: 0.9;
  visibility: visible;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
              padding 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease 0.1s,
              visibility 0s ease 0s;
}

.faq-answer p {
  margin: 0;
  padding: 0;
}

.faq-answer a {
  color: var(--hover-color);
  text-decoration: none;
  font-weight: 500;
}

.faq-answer a:hover {
  text-decoration: underline;
}

/* Contact Form Section */
.contact-form-section {
  align-self: start;
}

.contact-form-section h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border-color);
  color: var(--text-color);
  letter-spacing: -0.02em;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-color);
}

.form-group select,
.form-group input,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--bg-color);
  color: var(--text-color);
  transition: all 0.3s ease;
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--hover-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23333' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

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

.submit-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.submit-button svg {
  width: 20px;
  height: 20px;
}

.form-note {
  font-size: 0.875rem;
  color: var(--text-color);
  opacity: 0.7;
  text-align: center;
  margin-top: 10px;
}

.form-note a {
  color: var(--hover-color);
  text-decoration: none;
  font-weight: 500;
}

.form-note a:hover {
  text-decoration: underline;
}

.form-message {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  margin-bottom: 10px;
  display: none;
}

.form-message.form-message-success {
  display: block;
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.form-message.form-message-error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.submit-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Responsive Contact Page */
@media (max-width: 768px) {
  .contact-page {
    padding: 20px 15px;
  }

  .contact-header h1 {
    font-size: 2.25rem;
  }

  .contact-intro {
    font-size: 1.125rem;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-form-section {
    position: static;
  }

  .faq-section h2,
  .contact-form-section h2 {
    font-size: 1.75rem;
  }
}

footer {
  border-top: 1px solid var(--border-color);
  padding: 20px 0;
  margin-top: 40px;
  color: var(--footer-color);
  transition: border-color 0.3s ease, color 0.3s ease;
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-copyright {
  margin: 0;
  font-size: 0.875rem;
  color: var(--footer-color);
}

.footer-links {
  display: flex;
  gap: 20px;
  align-items: center;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--footer-color);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all 0.3s ease;
  padding: 6px 12px;
  border-radius: 6px;
}

.footer-link:hover {
  color: var(--text-color);
  background: var(--border-color);
}

.footer-link svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  transition: transform 0.3s ease;
}

.footer-link:hover svg {
  transform: scale(1.1);
}

.footer-link span {
  font-weight: 500;
}

/* Responsive Footer */
@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .footer-links {
    gap: 15px;
  }
}

/* ============================================
   HOMEPAGE STYLES - Product Cards
   ============================================ */
.homepage {
  position: relative;
  z-index: 1;
}

.hero-section {
  text-align: center;
  margin-bottom: 60px;
  padding: 40px 0;
}

.hero-section h1 {
  font-size: 3rem;
  margin-bottom: 15px;
  font-weight: 700;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-color);
  opacity: 0.8;
}

.products-section {
  margin: 60px 0;
}

/* Posts Section */
.posts-section {
  margin: 60px 0;
}

.posts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 20px;
}

.posts-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0;
}

.view-all-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.view-all-link:hover {
  color: var(--hover-color);
}

.posts-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.post-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.post-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  height: 100%;
}

.post-card-link:hover .post-card {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--hover-color);
}

.post-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--border-color);
  position: relative;
}

.post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.post-card-link:hover .post-card .post-image img {
  transform: scale(1.05);
}

.post-image-placeholder {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(236, 72, 153, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.post-image-placeholder::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(99, 102, 241, 0.05) 10px,
    rgba(99, 102, 241, 0.05) 20px
  );
  animation: placeholderMove 20s linear infinite;
}

@keyframes placeholderMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(20px, 20px); }
}

.placeholder-content {
  color: var(--text-color);
  opacity: 0.4;
  position: relative;
  z-index: 1;
}

.post-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-categories {
  margin-bottom: 12px;
}

.post-category {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(99, 102, 241, 0.1);
  color: #6366f1;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.post-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.3;
}

.post-title {
  color: var(--text-color);
  transition: color 0.3s ease;
}

.post-card-link:hover .post-title {
  color: var(--hover-color);
}

.post-description {
  color: var(--text-color);
  opacity: 0.8;
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
  font-size: 0.95rem;
}

.post-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
}

.post-date {
  color: var(--text-color);
  opacity: 0.6;
}

.post-social {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #0077b5;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
}

.post-social:hover {
  color: #005885;
  transform: translateX(2px);
}

.post-social svg {
  width: 16px;
  height: 16px;
}

/* Posts Page */
.posts-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.posts-page-header {
  text-align: center;
  margin-bottom: 50px;
}

.posts-page-header h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.posts-page-description {
  font-size: 1.25rem;
  color: var(--text-color);
  opacity: 0.8;
}

.posts-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.products-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

/* Homepage Product Cards */
.homepage .product-card,
.product-card {
  background: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 40px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--hover-color);
}

.product-card-personal {
  border-left: 4px solid #6366f1;
}

.product-card-business {
  border-left: 4px solid #ec4899;
}

.product-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 20px;
  width: fit-content;
}

.personal-badge {
  background: rgba(99, 102, 241, 0.1);
  color: #6366f1;
}

.business-badge {
  background: rgba(236, 72, 153, 0.1);
  color: #ec4899;
}

.product-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-tagline {
  font-size: 1.125rem;
  color: var(--text-color);
  opacity: 0.7;
  margin-bottom: 20px;
  font-weight: 500;
}

.product-description {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-color);
  margin-bottom: 30px;
  flex: 1;
}

.product-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  line-height: 1.5;
}

.feature-icon {
  font-size: 1.25rem;
  min-width: 28px;
  width: 28px;
  text-align: center;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.feature-item > span:not(.feature-icon) {
  flex: 1;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.product-highlight {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 25px;
  padding: 12px 20px;
  border-radius: 8px;
  text-align: center;
  background: rgba(99, 102, 241, 0.1);
  color: #6366f1;
}

.coming-soon {
  background: rgba(236, 72, 153, 0.1);
  color: #ec4899;
}

.product-button {
  display: block;
  text-align: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.product-button-primary {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
}

.product-button-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
  color: white;
}

.product-button-secondary {
  background: transparent;
  color: #ec4899;
  border-color: #ec4899;
}

.product-button-secondary:hover {
  background: #ec4899;
  color: white;
  transform: translateY(-2px);
}

.content-section {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}

/* Page Content Styles */
.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
  line-height: 1.8;
}

.page-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-color);
}

.page-content h2 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 20px;
  color: var(--text-color);
}

.page-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--text-color);
}

.page-content p {
  margin-bottom: 16px;
  color: var(--text-color);
  opacity: 0.9;
}

.page-content ul,
.page-content ol {
  margin-bottom: 20px;
  padding-left: 30px;
  color: var(--text-color);
}

.page-content li {
  margin-bottom: 10px;
}

.page-content a {
  color: #6366f1;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-content a:hover {
  color: #4f46e5;
  text-decoration: underline;
}

.page-meta {
  color: var(--text-color);
  opacity: 0.7;
  font-size: 0.95rem;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.page-meta strong {
  font-weight: 600;
  opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2rem;
  }

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

  .products-container {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 0 20px;
  }

  .product-card {
    padding: 30px 20px;
  }

  .product-title {
    font-size: 1.75rem;
  }

  .posts-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .posts-header h2 {
    font-size: 2rem;
  }

  .posts-container {
    grid-template-columns: 1fr;
    gap: 25px;
  }
}

/* About Page Styles */
.about-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 20px;
}

.language-toggle {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-bottom: 30px;
}

.lang-btn {
  padding: 8px 16px;
  background: var(--bg-color);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-color);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-block;
}

.lang-btn:hover {
  border-color: var(--hover-color);
  transform: translateY(-2px);
}

.lang-btn.active {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: white;
  border-color: #6366f1;
  cursor: default;
}

.lang-btn.active:hover {
  transform: none;
}

.about-hero {
  text-align: center;
  margin-bottom: 60px;
  padding: 40px 0;
}

.about-hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-hero .hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-color);
  opacity: 0.8;
  max-width: 600px;
  margin: 0 auto;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.about-section {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-section h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-color);
}

.about-section p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--text-color);
  opacity: 0.9;
  margin-bottom: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.feature-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--hover-color);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-color);
}

.feature-card p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-color);
  opacity: 0.8;
  margin-bottom: 20px;
  flex: 1;
}

.feature-link {
  color: #6366f1;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

.feature-link:hover {
  color: #4f46e5;
  transform: translateX(5px);
}

.values-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.value-item {
  padding: 24px;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.value-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  border-color: var(--hover-color);
}

.value-item h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-color);
}

.value-item p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-color);
  opacity: 0.8;
  margin: 0;
}

.cta-link {
  color: #6366f1;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  border-bottom: 2px solid transparent;
}

.cta-link:hover {
  color: #4f46e5;
  border-bottom-color: #4f46e5;
}

/* Responsive About Page */
@media (max-width: 768px) {
  .about-hero h1 {
    font-size: 2rem;
  }

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

  .about-section h2 {
    font-size: 1.75rem;
  }

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

  .values-list {
    grid-template-columns: 1fr;
  }

  .language-toggle {
    margin-bottom: 20px;
  }
}