/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: 1rem 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
  padding: 0.75rem 0;
}

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

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
}

.navbar-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-blue);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar-links a {
  font-weight: 500;
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-blue);
  transition: width var(--transition-base);
}

.navbar-links a:hover {
  color: var(--color-blue-600);
}

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

.navbar-cta {
  display: flex;
  gap: 0.75rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-gray-800);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--color-white);
}

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

.hero-bg .gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
}

.hero-bg .orb-1 {
  width: 600px;
  height: 600px;
  background: var(--color-blue-400);
  top: -200px;
  right: -100px;
}

.hero-bg .orb-2 {
  width: 400px;
  height: 400px;
  background: var(--color-blue-300);
  bottom: -100px;
  left: -100px;
}

.hero-bg .orb-3 {
  width: 300px;
  height: 300px;
  background: var(--color-blue-200);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  animation: fadeInUp 0.8s ease-out;
}

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

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--color-gray-900);
}

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

.hero-description {
  font-size: 1.25rem;
  color: var(--color-gray-500);
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-blue-600);
}

.hero-stat-label {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.hero-visual {
  position: relative;
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: 2rem;
  box-shadow: var(--shadow-2xl);
  border: 1px solid var(--color-gray-100);
  position: relative;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.hero-card-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.hero-card-dot.red { background: #ef4444; }
.hero-card-dot.yellow { background: #eab308; }
.hero-card-dot.green { background: #22c55e; }

.hero-code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-gray-700);
}

.hero-code .keyword { color: var(--color-blue-600); }
.hero-code .string { color: #22c55e; }
.hero-code .comment { color: var(--color-gray-400); }
.hero-code .function { color: #8b5cf6; }

.hero-floating-card {
  position: absolute;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-gray-100);
  animation: float 3s ease-in-out infinite;
}

.hero-floating-card.card-1 {
  top: -20px;
  right: -20px;
  animation-delay: 0s;
}

.hero-floating-card.card-2 {
  bottom: 20px;
  left: -30px;
  animation-delay: 1s;
}

/* ========== SERVICES ========== */
.services {
  background: var(--color-gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-blue);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

.service-card:hover {
  border-color: var(--color-blue-200);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  background: var(--color-blue-100);
  color: var(--color-blue-600);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--color-gray-900);
}

.service-description {
  color: var(--color-gray-500);
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
}

.service-price {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-blue-600);
}

.service-price span {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-gray-400);
}

/* ========== PORTFOLIO ========== */
.portfolio {
  background: var(--color-white);
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 500;
  color: var(--color-gray-500);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-blue);
  color: var(--color-white);
  border-color: transparent;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ========== PORTFOLIO / CASES ========== */
.portfolio-item {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  cursor: default;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  box-shadow: none;
}

.portfolio-media {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-gray-100);
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.45s ease;
}

.portfolio-item:hover img {
  transform: scale(1.06);
}

.portfolio-overlay {
  display: none !important;
}

.portfolio-content {
  padding: 1rem 1.25rem 1.25rem;
}

.portfolio-category {
  display: inline-block;
  margin-bottom: 0.35rem;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.portfolio-content h3 {
  margin: 0;
  color: var(--color-gray-900);
  font-size: 1.15rem;
  line-height: 1.3;
}

/* ========== PROMOTIONS ========== */
.promotions {
  background: var(--gradient-dark);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.promotions .section-title {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.promotions .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.promo-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.promo-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}

.promo-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

.promo-card .promo-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.375rem 0.875rem;
  background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
}

.promo-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.promo-description {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1.5rem;
}

.promo-price {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.promo-price .old {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.4);
  text-decoration: line-through;
}

.promo-price .new {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-blue-400);
}

.promo-features {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.promo-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9375rem;
}

.promo-feature svg {
  width: 18px;
  height: 18px;
  color: #22c55e;
  flex-shrink: 0;
}

.promo-card .btn {
  width: 100%;
}

/* ========== CONTACT ========== */
.contact {
  background: var(--color-gray-50);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info {
  padding: 2rem;
}

.contact-info h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-gray-900);
}

.contact-info p {
  color: var(--color-gray-500);
  margin-bottom: 2rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
}

.contact-method:hover {
  border-color: var(--color-blue-200);
  box-shadow: var(--shadow-md);
}

.contact-method-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-blue-100);
  color: var(--color-blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-method-label {
  font-size: 0.8125rem;
  color: var(--color-gray-400);
}

.contact-method-value {
  font-weight: 600;
  color: var(--color-gray-900);
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--gradient-blue);
  color: var(--color-white);
  border-color: transparent;
}

.contact-form-wrapper {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 2rem;
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--color-gray-700);
  font-size: 0.9375rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-gray-800);
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-blue-400);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

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

/* ========== FOOTER ========== */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: 4rem 0 2rem;
}

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

.footer-brand p {
  margin-top: 1rem;
  line-height: 1.7;
}

.footer-col h4 {
  color: var(--color-white);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.footer-col a {
  display: block;
  padding: 0.375rem 0;
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom a {
  color: var(--color-blue-400);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: minmax(0, 1fr);
    text-align: center;
  }

  .hero-description { margin: 0 auto 2rem; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { max-width: 500px; margin: 0 auto; }

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

@media (max-width: 768px) {
  .navbar-links { display: none; }
  .mobile-toggle { display: flex; }

  .hero-title { font-size: 2.5rem; }
  .hero-stats { gap: 1.5rem; }

  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .promo-cards { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.25rem; }
  .hero-description { font-size: 1.125rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { flex-wrap: wrap; gap: 1rem 1.5rem; }
  .hero-card { padding: 1.5rem; }
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gray-800);
}

.mobile-menu-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-gray-600);
}

/* ========== WHY ========== */
.why {
  background: var(--color-white);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.why-item {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-xl);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all var(--transition-base);
}

.why-item:hover {
  border-color: var(--color-blue-200);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.why-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--color-blue-100);
  color: var(--color-blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 1.25rem;
}

.why-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--color-gray-900);
}

.why-text {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ========== ABOUT ========== */
.about {
  background: var(--gradient-blue-subtle);
}

.about-box {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-lead {
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--color-gray-800);
  margin-bottom: 1.5rem;
}

.about-text {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-gray-600);
  margin-bottom: 2.5rem;
}

.about-cta {
  display: flex;
  justify-content: center;
}

/* ========== RESPONSIVE WHY/ABOUT ========== */
@media (max-width: 1024px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .why-grid { grid-template-columns: 1fr; }
  .about-lead { font-size: 1.125rem; }
}