/* Reset & Base Styles */
:root {
  /* US Tech Palette (Vercel/Linear inspired) */
  --primary-color: #000000;
  --text-color: #111111;
  --text-light: #666666;
  --text-lighter: #888888;

  --bg-white: #ffffff;
  --bg-dot: #e5e5e5;

  --accent-color: #000000; /* Minimalist Black Accent */
  --border-color: #eaeaea;
  --border-hover: #000000;

  /* Radius System */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.02),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.05),
    0 10px 10px -5px rgba(0, 0, 0, 0.01);

  --transition: all 0.2s cubic-bezier(0.165, 0.84, 0.44, 1);
  --transition-fast: all 0.15s cubic-bezier(0.165, 0.84, 0.44, 1);
  --transition-slow: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
  --font-inter: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  --font-mono: "Roboto Mono", monospace;

  /* Dark Mode Support */
  --dark-bg: #0a0a0a;
  --dark-bg-secondary: #1a1a1a;
  --dark-text: #f5f5f5;
  --dark-text-secondary: #b0b0b0;
  --dark-border: #2a2a2a;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-inter);
  line-height: 1.5;
  color: var(--text-color);
  background-color: var(--bg-white);
  /* Technical Grid Background */
  background-image: linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Dark Mode - Disabled by default (uncomment to enable auto dark mode) */
/*
@media (prefers-color-scheme: dark) {
  :root {
    --text-color: var(--dark-text);
    --text-light: var(--dark-text-secondary);
    --bg-white: var(--dark-bg);
    --border-color: var(--dark-border);
    --bg-dot: rgba(255, 255, 255, 0.05);
  }

  body {
    background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  }
}
*/

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4rem;
  color: var(--primary-color);
  letter-spacing: -0.04em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  letter-spacing: -0.03em;
}

/* Header & Navigation */
.header {
  background-color: rgba(255, 255, 255, var(--header-bg, 0.8));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, var(--header-border, 0.05));
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  will-change: transform;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

/* Disabled dark mode for Header
@media (prefers-color-scheme: dark) {
  .header {
    background-color: rgba(10, 10, 10, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
}
*/

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

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  transition: var(--transition-fast);
  text-decoration: none;
}

.logo:hover {
  opacity: 0.8;
  text-decoration: none;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
  background: #f4f4f5;
  padding: 6px 6px;
  border-radius: var(--radius-pill);
}

/* Disabled dark mode for Nav list
@media (prefers-color-scheme: dark) {
  .nav-list {
    background: rgba(255, 255, 255, 0.05);
  }
}
*/

.nav-list li {
  display: flex;
}

.nav-list a {
  text-decoration: none;
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.875rem;
  transition: var(--transition);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  position: relative;
  will-change: color, background-color;
}

.nav-list a:hover {
  color: var(--primary-color);
  background-color: #fff;
  box-shadow: var(--shadow-xs);
}

.nav-list a.active {
  color: var(--primary-color);
  background-color: #fff;
  box-shadow: var(--shadow-xs);
}

/* Disabled dark mode for Nav hover
@media (prefers-color-scheme: dark) {
  .nav-list a:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
}
*/

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  position: relative;
  z-index: 1001;
  padding: 0;
  transition: background-color 0.2s;
  will-change: transform;
}

.mobile-menu-btn:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

/* Disabled dark mode for Mobile menu button
@media (prefers-color-scheme: dark) {
  .mobile-menu-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
}
*/

.mobile-menu-btn:active {
  transform: scale(0.95);
}

.mobile-menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--primary-color);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  transition: var(--transition);
  border-radius: 2px;
}

.mobile-menu-btn span:nth-child(1) {
  top: 13px;
}

.mobile-menu-btn span:nth-child(2) {
  top: 50%;
  margin-top: -1px;
}

.mobile-menu-btn span:nth-child(3) {
  bottom: 13px;
}

.mobile-menu-btn.active span:nth-child(1) {
  top: 50%;
  margin-top: -1px;
  transform: translateX(-50%) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  bottom: 50%;
  margin-bottom: -1px;
  transform: translateX(-50%) rotate(-45deg);
}

/* Hero Section */
.hero {
  padding: 10rem 0 8rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.6;
  will-change: contents;
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 2rem;
  color: var(--primary-color);
  letter-spacing: -0.05em;
  background: linear-gradient(to right, #000000 0%, #666666 40%, #000000 80%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 5s linear infinite;
  will-change: background-position;
}

@keyframes shine {
  to {
    background-position: 200% center;
  }
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-light);
  margin-bottom: 3.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: -0.02em;
  font-weight: 400;
  animation: fadeInUp 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) 0.2s both;
}

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

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  animation: fadeInUp 0.8s cubic-bezier(0.165, 0.84, 0.44, 1) 0.3s both;
}

/* Buttons */
.btn {
  padding: 0 1.5rem;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.165, 0.84, 0.44, 1);
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
  will-change: transform, box-shadow;
  touch-action: manipulation;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
  transition: left 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

.btn:active {
  transform: scale(0.96);
}

.btn-interactive {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn.is-pressed {
  transform: translateY(1px) scale(0.98);
}

.btn-ripple {
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.18;
  transform: scale(0);
  pointer-events: none;
  animation: ripple 0.6s ease-out;
}

.btn-ripple.is-hover {
  opacity: 0.1;
  animation-duration: 0.9s;
}

@keyframes ripple {
  to {
    transform: scale(2.5);
    opacity: 0;
  }
}

.btn.is-loading {
  color: transparent;
  pointer-events: none;
}

.btn.is-loading::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-top-color: rgba(255, 255, 255, 0.1);
  animation: spin 0.7s linear infinite;
}

.btn-secondary.is-loading::after {
  border-color: rgba(0, 0, 0, 0.2);
  border-top-color: rgba(0, 0, 0, 0.05);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.btn:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  background-color: #333;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary:hover {
  border-color: #000;
  background-color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Disabled dark mode for Secondary button
@media (prefers-color-scheme: dark) {
  .btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    border-color: var(--dark-border);
  }

  .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--text-color);
  }
}
*/

/* Touch device button optimization */
@media (hover: none) and (pointer: coarse) {
  .btn {
    height: 52px;
    padding: 0 1.75rem;
    font-size: 1.0625rem;
  }
}

/* About Section */
.about {
  padding: 8rem 0;
  background-color: #fff;
  border-top: 1px solid var(--border-color);
}

/* Disabled dark mode for About section
@media (prefers-color-scheme: dark) {
  .about {
    background-color: var(--dark-bg);
    border-top-color: var(--dark-border);
  }
}
*/

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.about-text h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.about-text p {
  color: var(--text-light);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.about-info {
  background-color: #fafafa;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  will-change: transform, box-shadow;
  transition: var(--transition-slow);
}

.about-info:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

/* Disabled dark mode for About info
@media (prefers-color-scheme: dark) {
  .about-info {
    background-color: var(--dark-bg-secondary);
    border-color: var(--dark-border);
  }
}
*/

.info-item {
  display: flex;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.info-item:hover {
  opacity: 0.8;
}

.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-item:first-child {
  padding-top: 0;
}

.info-label {
  font-weight: 500;
  color: var(--text-light);
}

.info-value {
  color: var(--primary-color);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

/* Services Section (Bento Grid) */
.services,
.dx {
  padding: 8rem 0;
  background-color: #fafafa;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

/* Disabled dark mode for Services/DX sections
@media (prefers-color-scheme: dark) {
  .services,
  .dx {
    background-color: var(--dark-bg);
    border-top-color: var(--dark-border);
    border-bottom-color: var(--dark-border);
  }
}
*/

.services .section-title {
  color: var(--primary-color);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, minmax(250px, auto));
  gap: 1.5rem;
}

.bento-item {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  will-change: transform, box-shadow, border-color;
}

.bento-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.02), transparent);
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
  pointer-events: none;
}

.bento-item:hover {
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
  transform: translateY(-6px);
}

.bento-item:hover::before {
  opacity: 1;
}

/* Disabled dark mode for Bento items
@media (prefers-color-scheme: dark) {
  .bento-item {
    background-color: var(--dark-bg-secondary);
    border-color: var(--dark-border);
  }

  .bento-item:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  }
}
*/

.service-icon {
  width: 48px;
  height: 48px;
  background-color: #fafafa;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--primary-color);
  transition: var(--transition-fast);
  will-change: transform, background-color;
}

.bento-item:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
  background-color: #000;
  color: white;
  border-color: #000;
}

/* Disabled dark mode for Service icons
@media (prefers-color-scheme: dark) {
  .service-icon {
    background-color: var(--dark-bg);
    border-color: var(--dark-border);
  }
}
*/

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--primary-color);
  letter-spacing: -0.02em;
}

.service-description {
  color: var(--text-light);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.bento-large .service-title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.bento-large .service-description {
  font-size: 1.125rem;
  max-width: 80%;
}

/* Testimonials Section */
.testimonials {
  padding: 8rem 0;
  background-color: #fff;
  border-bottom: 1px solid var(--border-color);
}

/* Disabled dark mode for Testimonials
@media (prefers-color-scheme: dark) {
  .testimonials {
    background-color: var(--dark-bg);
    border-bottom-color: var(--dark-border);
  }
}
*/

.testimonial-card {
  background-color: #fcfcfc;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  transition: var(--transition);
  will-change: transform, box-shadow, border-color;
  position: relative;
  overflow: hidden;
}

.testimonial-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--primary-color), transparent);
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.testimonial-card:hover {
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
  transform: translateY(-6px);
}

.testimonial-card:hover::before {
  opacity: 1;
}

/* Disabled dark mode for Testimonial cards
@media (prefers-color-scheme: dark) {
  .testimonial-card {
    background-color: var(--dark-bg-secondary);
    border-color: var(--dark-border);
  }

  .testimonial-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  }
}
*/

.testimonial-content {
  margin-bottom: 2rem;
}

.testimonial-content p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-light);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-pill);
  background-color: #eee;
  flex-shrink: 0;
  will-change: transform;
  transition: var(--transition-fast);
}

.testimonial-card:hover .author-avatar {
  transform: scale(1.1);
}

/* Disabled dark mode for Author avatar
@media (prefers-color-scheme: dark) {
  .author-avatar {
    background-color: var(--dark-border);
  }
}
*/

.author-info {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--primary-color);
}

.author-role {
  font-size: 0.8125rem;
  color: var(--text-lighter);
}

/* Contact Section */
.contact {
  padding: 8rem 0;
  background-color: #fff;
}

/* Disabled dark mode for Contact section
@media (prefers-color-scheme: dark) {
  .contact {
    background-color: var(--dark-bg);
  }
}
*/

.contact-content {
  max-width: 500px;
  margin: 0 auto;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  color: var(--primary-color);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  padding: 0 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition-fast);
  background-color: #fafafa;
  color: var(--text-color);
  will-change: border-color, box-shadow, background-color;
}

.form-group input {
  height: 48px;
}

.form-group textarea {
  padding-top: 1rem;
  padding-bottom: 1rem;
  min-height: 140px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background-color: white;
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.form-group.has-error input,
.form-group.has-error textarea {
  border-color: #d62828;
  background-color: #fff5f5;
  box-shadow: 0 0 0 3px rgba(214, 40, 40, 0.08);
}

.form-error {
  font-size: 0.85rem;
  color: #d62828;
  min-height: 1.2rem;
}

.contact-form.is-sent {
  animation: formSuccess 0.6s ease;
}

.form-success {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  background-color: #f1f5f9;
  color: var(--primary-color);
  font-size: 0.95rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.form-success.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.form-feedback {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.form-feedback[data-type="error"] {
  background-color: #fff5f5;
  color: #b42318;
}

.form-feedback[data-type="success"] {
  background-color: #f1f5f9;
  color: var(--primary-color);
}

.form-feedback.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes formSuccess {
  0% {
    transform: scale(0.98);
  }
  60% {
    transform: scale(1.01);
  }
  100% {
    transform: scale(1);
  }
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: #d32f2f;
}

.form-group input:valid:not(:placeholder-shown),
.form-group textarea:valid:not(:placeholder-shown) {
  border-color: #388e3c;
}

/* Disabled dark mode for Form inputs
@media (prefers-color-scheme: dark) {
  .form-group input,
  .form-group textarea {
    background-color: var(--dark-bg-secondary);
    border-color: var(--dark-border);
  }

  .form-group input:focus,
  .form-group textarea:focus {
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
  }
}
*/

/* Loading Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  will-change: transform;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner.small {
  width: 24px;
  height: 24px;
  border-width: 2px;
}

.spinner.large {
  width: 56px;
  height: 56px;
  border-width: 4px;
}

/* Loading Bar / Progress Indicator */
.progress-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(to right, var(--primary-color), #666666, var(--primary-color));
  background-size: 200% 100%;
  animation: loadingBar 2s ease-in-out infinite;
  z-index: 9999;
  will-change: width;
}

@keyframes loadingBar {
  0% {
    width: 0%;
    opacity: 1;
  }
  50% {
    width: 80%;
    opacity: 1;
  }
  100% {
    width: 100%;
    opacity: 0;
  }
}

/* Footer */
.footer {
  background-color: #fff;
  color: var(--text-color);
  padding: 5rem 0 2rem;
  border-top: 1px solid var(--border-color);
}

/* Disabled dark mode for Footer
@media (prefers-color-scheme: dark) {
  .footer {
    background-color: var(--dark-bg);
    border-top-color: var(--dark-border);
    color: var(--text-color);
  }
}
*/

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
  transition: var(--transition-fast);
  display: inline-block;
}

.footer-logo:hover {
  opacity: 0.8;
}

.footer-info p {
  color: var(--text-light);
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
}

.footer-links h4 {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  font-weight: 600;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #888;
  text-decoration: none;
  transition: var(--transition-fast);
  font-size: 0.9375rem;
  position: relative;
  display: inline-block;
}

.footer-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: #888;
  transition: width 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

.footer-links a:hover::after {
  width: 100%;
  background-color: var(--primary-color);
}

/* Disabled dark mode for Footer links
@media (prefers-color-scheme: dark) {
  .footer-links a {
    color: var(--text-lighter);
  }

  .footer-links a::after {
    background-color: var(--text-lighter);
  }

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

  .footer-links a:hover::after {
    background-color: var(--text-color);
  }
}
*/

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: #666;
  font-size: 0.875rem;
}

/* Disabled dark mode for Footer bottom
@media (prefers-color-scheme: dark) {
  .footer-bottom {
    border-top-color: var(--dark-border);
  }

  .footer-bottom p {
    color: var(--text-lighter);
  }
}
*/

.no-scroll {
  overflow: hidden;
}

.page-fade-in {
  opacity: 0;
}

.page-fade-in.page-loaded {
  opacity: 1;
  transition: opacity 0.6s ease;
}

/* Scroll Animation Utilities */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.165, 0.84, 0.44, 1),
    transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
  will-change: opacity, transform;
}

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

.fade-in {
  opacity: 0;
  transition: opacity 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
  will-change: opacity;
}

.fade-in.visible {
  opacity: 1;
}

.scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s cubic-bezier(0.165, 0.84, 0.44, 1),
    transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
  will-change: opacity, transform;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger Delays */
.delay-100 {
  transition-delay: 100ms;
}
.delay-200 {
  transition-delay: 200ms;
}
.delay-300 {
  transition-delay: 300ms;
}
.delay-400 {
  transition-delay: 400ms;
}
.delay-500 {
  transition-delay: 500ms;
}

/* Parallax Effect for Background */
.parallax-bg {
  position: relative;
  overflow: hidden;
}

.parallax-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.02), transparent);
  transform: translateY(0);
  will-change: transform;
  pointer-events: none;
}

/* DX Section specific overrides */
.dx .bento-grid {
    grid-template-rows: minmax(250px, auto);
}

/* Section CTA Button */
.section-cta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1rem;
}

.section-cta .btn {
  min-width: 180px;
  text-decoration: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .hero-title {
    font-size: 3.5rem;
  }

  .section-title {
    font-size: 2rem;
    margin-bottom: 3rem;
  }

  .about-content {
    gap: 4rem;
  }

  /* Tablet button optimization */
  .btn {
    height: 50px;
    padding: 0 1.625rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .hero {
    padding: 6rem 0 5rem;
  }

  .hero-title {
    font-size: 2.5rem;
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 0.75rem;
  }

  .btn {
    width: 100%;
    height: 48px;
  }

  .nav-list {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
    margin-right: -10px;
  }

  .nav {
    display: none;
  }

  .nav.active {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: #fff;
    z-index: 1000;
    padding: 8rem 2rem 2rem;
    animation: slideIn 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    will-change: transform;
  }

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

  /* Disabled dark mode for Mobile nav
  @media (prefers-color-scheme: dark) {
    .nav.active {
      background: var(--dark-bg);
    }
  }
  */

  .nav.active .nav-list {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    gap: 2rem;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: 0;
    padding: 0;
  }

  .nav.active .nav-list li {
    width: 100%;
    text-align: center;
  }

  .nav.active .nav-list a {
    font-size: 1.75rem;
    font-weight: 600;
    padding: 1rem;
    background: none;
    color: var(--primary-color);
    display: block;
    width: 100%;
    letter-spacing: -0.02em;
  }

  .nav.active .nav-list a:hover {
    background-color: #fafafa;
    box-shadow: none;
  }

  /* Disabled dark mode for Mobile nav links
  @media (prefers-color-scheme: dark) {
    .nav.active .nav-list a {
      color: var(--text-color);
    }

    .nav.active .nav-list a:hover {
      background-color: var(--dark-bg-secondary);
    }
  }
  */

  .bento-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .bento-large {
    grid-column: span 1;
    grid-row: span 1;
  }

  .about {
    padding: 5rem 0;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-text h3 {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.75rem;
    margin-bottom: 2.5rem;
  }

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

  .testimonials,
  .services,
  .dx {
    padding: 5rem 0;
  }

  .contact {
    padding: 5rem 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 4rem 0 3rem;
  }

  .hero-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
  }

  .about-text h3 {
    font-size: 1.5rem;
  }

  .about-text p {
    font-size: 1rem;
  }

  .service-title {
    font-size: 1.125rem;
  }

  .bento-large .service-title {
    font-size: 1.5rem;
  }

  .bento-item {
    padding: 1.5rem;
  }

  .about-info {
    padding: 1.5rem;
  }

  .testimonial-card {
    padding: 1.5rem;
  }

  .footer-logo {
    font-size: 1.125rem;
  }
}