/* ============================================
   BUS PRO CLEAN - Premium Design System
   Modern, Glassmorphism, Dark Theme
   ============================================ */

/* ===== CSS Custom Properties ===== */
:root {
  /* Colors */
  --color-primary: #0A1628;
  --color-primary-light: #1a2a42;
  --color-accent: #00D4FF;
  --color-accent-glow: rgba(0, 212, 255, 0.3);
  --color-secondary: #FFB800;
  --color-secondary-glow: rgba(255, 184, 0, 0.3);
  --color-white: #ffffff;
  --color-gray-100: #f8fafc;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-text: var(--color-gray-100);
  --color-text-muted: var(--color-gray-400);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(20px);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', var(--font-primary);

  /* Spacing */
  --section-padding: clamp(4rem, 10vw, 8rem);
  --container-max: 1400px;
  --container-padding: clamp(1rem, 5vw, 3rem);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-glow: 0 0 40px var(--color-accent-glow);
  --shadow-card: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

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

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

body {
  font-family: var(--font-primary);
  background: var(--color-primary);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
}

h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--color-text-muted);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

/* ===== Layout ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

section {
  padding: var(--section-padding) 0;
  position: relative;
}

/* ===== Glassmorphism Components ===== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  transition: var(--transition-medium);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-5px);
  box-shadow: var(--shadow-card);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2.5rem;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #0099cc);
  color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 60px var(--color-accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-bg);
  border-color: var(--color-accent);
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition-medium);
}

.navbar.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: var(--glass-blur);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  transition: all 0.3s ease;
}

.logo:hover {
  transform: scale(1.02);
}

.logo-img {
  height: 55px;
  width: auto;
  object-fit: contain;
  filter: invert(1);
  transition: all 0.3s ease;
}

.logo:hover .logo-img {
  filter: drop-shadow(0 0 15px var(--color-accent));
  transform: scale(1.05);
}

/* Footer logo - slightly larger */
.footer-brand .logo-img {
  height: 70px;
}

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

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-gray-300);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition-fast);
}

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

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

.nav-cta {
  display: flex;
  gap: 1rem;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition-fast);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
      rgba(10, 22, 40, 0.9) 0%,
      rgba(10, 22, 40, 0.7) 50%,
      rgba(0, 212, 255, 0.1) 100%);
}

.hero-content {
  text-align: center;
  max-width: 900px;
  padding: 2rem;
  animation: fadeInUp 1s ease-out;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--color-accent);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

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

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: var(--color-gray-300);
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

.scroll-indicator span {
  display: block;
  width: 30px;
  height: 50px;
  border: 2px solid var(--color-gray-400);
  border-radius: 25px;
  position: relative;
}

.scroll-indicator span::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: scroll-dot 2s infinite;
}

/* ===== Services Section ===== */
.services {
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-subtitle {
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-desc {
  max-width: 600px;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.service-card {
  position: relative;
  overflow: hidden;
  padding: 2.5rem;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.service-card:hover {
  transform: translateY(-10px);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.04) 100%);
  border-color: var(--color-accent);
  box-shadow: 0 25px 50px -12px rgba(0, 212, 255, 0.25);
}

.service-card .icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #0077aa 100%);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin-bottom: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.service-card:hover .icon {
  transform: scale(1.15) rotate(8deg);
  box-shadow: 0 15px 40px rgba(0, 212, 255, 0.5);
}

.service-card h3 {
  margin-bottom: 1rem;
  color: var(--color-white);
  font-size: 1.5rem;
  font-weight: 700;
}

.service-card p {
  margin-bottom: 2rem;
  line-height: 1.7;
  font-size: 1rem;
}

.service-link {
  color: var(--color-accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 50px;
  border: 1px solid rgba(0, 212, 255, 0.3);
  transition: all 0.3s ease;
}

.service-link:hover {
  gap: 0.75rem;
  background: rgba(0, 212, 255, 0.2);
  border-color: var(--color-accent);
  transform: translateX(5px);
}

/* ===== About Section ===== */
.about {
  background: var(--color-primary-light);
}

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

.about-image {
  position: relative;
}

.about-image img,
.about-image video {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow-card);
}

.about-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-accent);
  border-radius: 20px;
  z-index: -1;
}

.about-content h2 {
  margin-bottom: 1.5rem;
}

.about-content>p {
  margin-bottom: 2rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.about-feature .icon {
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.about-feature h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--color-white);
}

.about-feature p {
  font-size: 0.875rem;
}

/* ===== Stats Section ===== */
.stats {
  background: linear-gradient(135deg, var(--color-accent) 0%, #006699 50%, #004466 100%);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.stat-item {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 3rem 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.4s ease;
}

.stat-item:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.stat-item h3 {
  font-size: clamp(3rem, 6vw, 4.5rem);
  color: var(--color-white);
  margin-bottom: 0.75rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  font-weight: 800;
}

.stat-item p {
  color: var(--color-white);
  font-weight: 600;
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.9;
}

/* ===== Process Section ===== */
.process {
  background: var(--color-primary);
}

.process-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-secondary));
  transform: translateX(-50%);
}

.process-step {
  display: flex;
  align-items: center;
  margin-bottom: 3rem;
  position: relative;
}

.process-step:nth-child(odd) {
  flex-direction: row-reverse;
}

.process-step:nth-child(odd) .step-content {
  text-align: right;
  padding-right: 4rem;
  padding-left: 0;
}

.process-step:nth-child(even) .step-content {
  padding-left: 4rem;
}

.step-number {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-accent), #0099cc);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  z-index: 1;
  box-shadow: var(--shadow-glow);
}

.step-content {
  width: 50%;
}

.step-content h3 {
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

/* ===== Testimonials Section ===== */
.testimonials {
  background: var(--color-primary-light);
}

.testimonial-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  text-align: center;
}

.testimonial-card .quote {
  font-size: 3rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.testimonial-card blockquote {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-gray-200);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent);
}

.testimonial-author h4 {
  color: var(--color-white);
  font-size: 1rem;
}

.testimonial-author p {
  font-size: 0.875rem;
}

/* ===== Contact Section ===== */
.contact {
  background: var(--color-primary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
}

.contact-info h2 {
  margin-bottom: 1.5rem;
}

.contact-info>p {
  margin-bottom: 2rem;
}

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

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-item .icon {
  width: 50px;
  height: 50px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.contact-item h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-form {
  padding: 3rem;
}

.form-group {
  margin-bottom: 1.5rem;
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--color-white);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

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

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

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

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

/* ===== Footer ===== */
.footer {
  background: rgba(0, 0, 0, 0.3);
  padding: 4rem 0 2rem;
}

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

.footer-brand .logo {
  margin-bottom: 1.5rem;
  display: inline-block;
}

.footer-brand p {
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.social-links a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: var(--color-white);
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

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

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

.footer-col a {
  color: var(--color-gray-400);
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  40% {
    transform: translateX(-50%) translateY(-10px);
  }

  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

@keyframes scroll-dot {
  0% {
    opacity: 1;
    top: 8px;
  }

  100% {
    opacity: 0;
    top: 25px;
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {

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

  .about-image {
    order: -1;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {

  .nav-links,
  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-primary);
    justify-content: center;
    align-items: center;
    gap: 2rem;
    z-index: 1000;
  }

  .process-timeline::before {
    left: 30px;
  }

  .process-step,
  .process-step:nth-child(odd) {
    flex-direction: column;
    align-items: flex-start;
    padding-left: 80px;
  }

  .step-number {
    left: 30px;
    transform: translateX(-50%);
  }

  .step-content,
  .process-step:nth-child(odd) .step-content,
  .process-step:nth-child(even) .step-content {
    width: 100%;
    text-align: left;
    padding: 0;
  }

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

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

  .social-links {
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .services-grid,
  .testimonial-slider {
    grid-template-columns: 1fr;
  }

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