@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --white: #ffffff;
  --bg-primary: #f8fafc;       
  --bg-secondary: #ffffff;     
  --bg-tertiary: #f1f5f9;       
  --bg-dark-accent: #0f172a;    
  
  --text-primary: #0f172a;     
  --text-secondary: #475569;    
  --text-muted: #64748b;        
  
  --accent-primary: #0f766e;    
  --accent-hover: #115e59;      
  --accent-light: #e6f4f2;     
  --accent-glow: rgba(15, 118, 110, 0.15);
  
  --accent-secondary: #b8975e;  
  --accent-secondary-hover: #a6824a;
  --accent-secondary-light: #fdfaf4;
  
  --accent-success: #10b981;    
  --accent-success-light: #ecfdf5;
 
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
  --shadow-hover: 0 20px 25px -5px rgba(15, 23, 42, 0.12), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  --border-radius-sm: 8px;
  --border-radius-md: 14px;
  --border-radius-lg: 24px;
  --border-radius-full: 9999px;
  
  --border-color: #e2e8f0;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
  width: 100%;
}

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

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
}

section {
  padding: 80px 0;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.grid {
  display: grid;
  gap: 32px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 14px 28px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--border-radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-normal);
  gap: 8px;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--text-white);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.btn-secondary:hover {
  background-color: var(--accent-light);
  transform: translateY(-2px);
}

.btn-gold {
  background-color: var(--accent-secondary);
  color: var(--text-white);
}

.btn-gold:hover {
  background-color: var(--accent-secondary-hover);
  transform: translateY(-2px);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-primary);
  background-color: var(--accent-light);
  padding: 6px 14px;
  border-radius: var(--border-radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 650px;
  margin: 0 auto 48px;
}

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

.header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition-normal);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  position: relative;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  color: var(--accent-primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--accent-primary);
  border-radius: 8px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon::before {
  content: '';
  width: 14px;
  height: 14px;
  border-top: 3px solid var(--white);
  border-right: 3px solid var(--white);
  transform: rotate(45deg);
  margin-top: 3px;
  margin-right: 3px;
}

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--accent-primary);
  transition: var(--transition-normal);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--text-primary);
  font-weight: 600;
}

.menu-toggle {
  display: none;
}

.menu-btn {
  display: none;
  cursor: pointer;
  z-index: 1001;
}

.hero-split {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 80px);
  background-image: linear-gradient(to right, rgba(15, 23, 42, 0.9) 35%, rgba(15, 23, 42, 0.45) 100%), 
  url('./1.avif');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 0;
}

.hero-split-content {
  display: flex;
  align-items: center;
  padding: 80px 48px 80px calc((100vw - 1280px) / 2 + 24px);
  width: 100%;
}

.hero-content-inner {
  max-width: 620px;
  color: var(--white);
}

.hero-split .hero-title {
  color: var(--white);
}

.hero-split .hero-title span {
  color: var(--accent-secondary);
}

.hero-split .hero-text {
  color: rgba(255, 255, 255, 0.8);
}

.hero-split .hero-subtitle {
  color: var(--accent-secondary);
}

.hero-split .hero-subtitle::before {
  background-color: var(--accent-secondary);
}

.hero-split .hero-trust-badge {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-split .hero-trust-badge p {
  color: rgba(255, 255, 255, 0.9);
}

.hero-split .hero-trust-badge strong {
  color: var(--white);
}

.btn-hero-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-hero-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent-primary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-subtitle::before {
  content: '';
  width: 40px;
  height: 2px;
  background-color: var(--accent-primary);
}

.hero-title {
  font-size: 4rem;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 28px;
}

.hero-title span {
  color: var(--accent-primary);
}

.hero-text {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

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

.hero-trust-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: 12px 18px;
  border-radius: var(--border-radius-md);
  margin-top: 48px;
  box-shadow: var(--shadow-sm);
  max-width: fit-content;
}

.hero-trust-badge .badge-icon {
  color: var(--accent-secondary);
  font-size: 1.25rem;
  font-weight: bold;
}

.hero-trust-badge p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
}

.hero-bg-credit {
  position: absolute;
  bottom: 24px;
  right: 24px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.6);
  padding: 4px 10px;
  border-radius: var(--border-radius-sm);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: var(--transition-fast);
}

.hero-bg-credit:hover {
  background: var(--white);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.stats {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 60px 0;
}

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

.stat-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.features {
  background-color: var(--bg-primary);
}

.feature-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 4px; height: 100%;
  background-color: var(--accent-primary);
  opacity: 0;
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

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

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  background-color: var(--accent-light);
  color: var(--accent-primary);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 28px;
  font-weight: bold;
}

.feature-card-image {
  width: 100%;
  height: 180px;
  overflow: hidden;
  border-radius: var(--border-radius-md);
  margin-bottom: 28px;
  background-color: var(--bg-tertiary);
}

.feature-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.feature-card:hover .feature-card-image img {
  transform: scale(1.06);
}

.feature-card h3 {
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.newsletter-section {
  background-color: var(--bg-secondary);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.newsletter-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 60px 40px;
  text-align: center;
  max-width: 850px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.newsletter-box h2 {
  font-size: 2.25rem;
  margin-bottom: 16px;
}

.newsletter-box p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.form-inline {
  display: flex;
  gap: 12px;
  max-width: 550px;
  margin: 0 auto;
}

.form-input {
  flex: 1;
  padding: 16px 20px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.about-hero {
  background-image: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), 
  url('./2.avif');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.about-intro {
  align-items: center;
}

.about-image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 0;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background-color: var(--border-color);
  top: 0; bottom: 0; left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
}

.timeline-item::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  right: -10px;
  background-color: var(--bg-secondary);
  border: 4px solid var(--accent-primary);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.left { left: 0; }
.right { left: 50%; }

.right::after { left: -10px; }

.timeline-content {
  padding: 24px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
}

.timeline-year {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--accent-primary);
  font-weight: 700;
  margin-bottom: 8px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.team-img-wrapper {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.team-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.team-card:hover .team-img {
  transform: scale(1.08);
}

.team-info {
  padding: 24px;
  text-align: center;
}

.team-info h3 {
  font-size: 1.15rem;
  margin-bottom: 4px;
}

.team-role {
  color: var(--accent-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-summary {
  padding: 20px 24px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent-primary);
  transition: var(--transition-fast);
}

.faq-item[open] .faq-summary::after {
  content: '−';
}

.faq-content {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.services-hero {
  background-image: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), 
  url('./3.avif');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.tabs-container {
  max-width: 1000px;
  margin: 0 auto;
}

.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.tab-label {
  padding: 14px 28px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.tab-label:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.tab-radio {
  display: none;
}

#tab1:checked ~ .tabs-nav label[for="tab1"],
#tab2:checked ~ .tabs-nav label[for="tab2"],
#tab3:checked ~ .tabs-nav label[for="tab3"] {
  background-color: var(--accent-primary);
  color: var(--white);
  border-color: var(--accent-primary);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.tab-panel {
  display: none;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
  animation: fadeIn 0.4s ease;
}

#tab1:checked ~ .tabs-content .tab-panel-1,
#tab2:checked ~ .tabs-content .tab-panel-2,
#tab3:checked ~ .tabs-content .tab-panel-3 {
  display: block;
}

.services-tab-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 48px;
  align-items: center;
}

.services-tab-img {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.services-tab-detail h3 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.services-tab-detail p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.services-checklist {
  list-style: none;
  margin-bottom: 32px;
}

.services-checklist li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.services-checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: 700;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.investments-hero {
  background-image: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), 
  url('./4.avif');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.billing-toggle-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.billing-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
}

.billing-label.active {
  color: var(--accent-primary);
}

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

input:checked + .slider {
  background-color: var(--accent-primary);
}

input:checked + .slider:before {
  transform: translateX(26px);
}

.pricing-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 48px 40px;
  position: relative;
  transition: var(--transition-normal);
}

.pricing-card.popular {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-lg);
}

.pricing-card.popular::after {
  content: 'RECOMMENDED';
  position: absolute;
  top: 24px; right: 24px;
  background-color: var(--accent-primary);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 12px;
  border-radius: var(--border-radius-full);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.price-title {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.price-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.price-value-wrapper {
  margin-bottom: 32px;
}

.price-value {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
}

.price-value span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.price-monthly, .price-annually {
  display: block;
}

#billing-toggle:checked ~ .grid-3 .price-monthly {
  display: none;
}

#billing-toggle:not(:checked) ~ .grid-3 .price-annually {
  display: none;
}

.pricing-features {
  list-style: none;
  margin-bottom: 40px;
  border-top: 1px solid var(--border-color);
  padding-top: 32px;
}

.pricing-features li {
  margin-bottom: 16px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.pricing-features li::before {
  content: '✓';
  color: var(--accent-primary);
  font-weight: bold;
}

.portfolio-filter-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-label {
  padding: 10px 20px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-normal);
}

.filter-label:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.filter-radio {
  display: none;
}

#filter-all:checked ~ .portfolio-filter-nav label[for="filter-all"],
#filter-real:checked ~ .portfolio-filter-nav label[for="filter-real"],
#filter-tech:checked ~ .portfolio-filter-nav label[for="filter-tech"],
#filter-energy:checked ~ .portfolio-filter-nav label[for="filter-energy"] {
  background-color: var(--accent-primary);
  color: var(--white);
  border-color: var(--accent-primary);
}

.portfolio-item {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

.portfolio-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.portfolio-img-wrapper {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

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

.portfolio-desc {
  padding: 28px;
}

.portfolio-cat {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.portfolio-desc h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.portfolio-desc p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

#filter-real:checked ~ .portfolio-grid .portfolio-item:not(.real-estate),
#filter-tech:checked ~ .portfolio-grid .portfolio-item:not(.technology),
#filter-energy:checked ~ .portfolio-grid .portfolio-item:not(.energy) {
  display: none;
}

.contact-hero {
  background-image: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), 
  url('./5.avif');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  border-bottom: 1px solid var(--border-color);
}

.contact-layout {
  grid-template-columns: 1.2fr 1.8fr;
  align-items: start;
}

.contact-info-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.contact-info-panel h3 {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.contact-detail-item {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-detail-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--accent-light);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: bold;
  flex-shrink: 0;
}

.contact-detail-text h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-detail-text p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-form-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.contact-form-panel h3 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.contact-form-panel p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.form-group-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.alert-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-color: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99999;
  justify-content: center;
  align-items: center;
}

.alert-overlay:target {
  display: flex;
}

.alert-card {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  padding: 48px 40px;
  width: 90%;
  max-width: 500px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  transform: translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.alert-overlay:target .alert-card {
  transform: translateY(0);
}

.alert-success-icon {
  width: 72px;
  height: 72px;
  background-color: var(--accent-success-light);
  color: var(--accent-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.25rem;
  font-weight: bold;
  margin: 0 auto 24px;
}

.alert-card h3 {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.alert-card p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1rem;
}

.alert-close-btn {
  background-color: var(--text-primary);
  color: var(--white);
  padding: 12px 28px;
  border-radius: var(--border-radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-block;
}

.alert-close-btn:hover {
  background-color: var(--accent-primary);
  transform: translateY(-2px);
}

.footer {
  background-color: var(--bg-dark-accent);
  color: var(--text-white);
  padding: 80px 0 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer h3, .footer h4 {
  color: var(--white);
}

.footer-top {
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 16px;
  max-width: 280px;
}

.footer-logo {
  color: var(--white);
}

.footer-logo span {
  color: var(--accent-primary);
}

.footer-links-col h4 {
  font-size: 1.1rem;
  margin-bottom: 24px;
  font-family: var(--font-heading);
}

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

.footer-links-col ul li {
  margin-bottom: 12px;
}

.footer-links-col ul li a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-links-col ul li a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-contact p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.footer-contact strong {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 40px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-social-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.footer-social-link svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
}

.footer-social-link:hover {
  background-color: var(--accent-primary);
  transform: translateY(-2px);
}

@media (max-width: 1328px) {
  .hero-split-content {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (max-width: 1024px) {
  section {
    padding: 60px 0;
  }
  .hero-title {
    font-size: 3.25rem;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-2, .services-tab-grid, .contact-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .hero-split {
    width: 100%;
    min-height: calc(100vh - 80px);
    background-image: linear-gradient(to bottom, rgba(15, 23, 42, 0.92) 50%, rgba(15, 23, 42, 0.75) 100%), 
    url('./6.avif');
  }
  
  .hero-split-content {
    padding: 80px 24px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .menu-btn {
    display: block;
    position: relative;
    width: 24px;
    height: 18px;
  }
  
  .hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    position: absolute;
    transition: var(--transition-normal);
  }
  
  .hamburger-line-1 { top: 0; }
  .hamburger-line-2 { top: 8px; }
  .hamburger-line-3 { top: 16px; }
  
  .menu-toggle:checked ~ .menu-btn .hamburger-line-1 {
    transform: rotate(45deg);
    top: 8px;
  }
  
  .menu-toggle:checked ~ .menu-btn .hamburger-line-2 {
    opacity: 0;
  }
  
  .menu-toggle:checked ~ .menu-btn .hamburger-line-3 {
    transform: rotate(-45deg);
    top: 8px;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 50%;
    height: 100vh;
    background-color: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    border-radius: 0;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 100px 24px 24px 24px;
    gap: 24px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    overflow-y: auto;
    z-index: 1000;
  }

  .nav-menu .nav-link {
    width: auto;
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    text-align: center;
    display: block;
    font-size: 1.15rem;
  }

  .nav-menu .nav-link:hover {
    background-color: var(--bg-tertiary);
  }

  .menu-toggle:checked ~ .nav-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }
  
  .timeline::after {
    left: 31px;
  }
  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 24px;
  }
  .timeline-item.right {
    left: 0%;
  }
  .timeline-item::after {
    left: 21px;
    right: auto;
  }
  .timeline-item.right::after {
    left: 21px;
  }
  
  .services-tab-grid {
    padding: 24px;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .section-title {
    font-size: 2rem;
  }
  .form-inline {
    flex-direction: column;
    gap: 12px;
  }
  .form-group-grid {
    grid-template-columns: 1fr;
  }
  .grid-4, .team-grid {
    grid-template-columns: 1fr;
  }
  .stats .grid-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  .stats .stat-number {
    font-size: 2.25rem;
  }
  .stats .stat-label {
    font-size: 0.8rem;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}