/* ==========================================================================
   ATHLETECH COMPUTER - MAIN DESIGN SYSTEM & STYLESHEET
   Replicated & Engineered from Isynbus with High Performance Aesthetics
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- CSS Variables & Design Tokens --- */
:root {
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'Inter', sans-serif;

  /* Color Palette - Hybrid Design */
  --bg-dark: #050814;
  --bg-dark-alt: #090D22;
  --bg-card-dark: #111836;
  --bg-light: #FFFFFF;
  --bg-light-alt: #F8FAFC;
  --bg-card-light: #FFFFFF;
  
  --primary-indigo: #4F46E5;
  --primary-blue: #3B82F6;
  --primary-purple: #7C3AED;
  --accent-blue: #2563EB;
  
  /* Text styling for Dark backgrounds */
  --text-heading-light: #F8FAFC;
  --text-body-light: #E2E8F0;
  --text-muted-light: #94A3B8;
  
  /* Text styling for Light backgrounds */
  --text-heading-dark: #0F172A;
  --text-body-dark: #334155;
  --text-muted-dark: #64748B;

  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: #E2E8F0;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4F46E5 0%, #3B82F6 100%);
  --gradient-purple-blue: linear-gradient(135deg, #7C3AED 0%, #3B82F6 100%);
  --gradient-glow: linear-gradient(135deg, rgba(79, 70, 229, 0.08) 0%, rgba(59, 130, 246, 0.08) 100%);
  --gradient-dark-card: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 12px 30px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.08);
  --shadow-card-hover: 0 22px 45px rgba(79, 70, 229, 0.08);
  --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--bg-light);
  color: var(--text-body-dark);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

/* --- Container & Layout Helpers --- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6.5rem 0;
  position: relative;
}

.section-dark {
  background-color: var(--bg-dark);
  color: var(--text-body-light);
}

.section-dark-alt {
  background-color: var(--bg-dark-alt);
  color: var(--text-body-light);
}

.section-light {
  background-color: var(--bg-light);
  color: var(--text-body-dark);
}

.section-light-alt {
  background-color: var(--bg-light-alt);
  color: var(--text-body-dark);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 4rem auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-full);
  background: rgba(79, 70, 229, 0.08);
  border: 1px solid rgba(79, 70, 229, 0.15);
  color: var(--primary-indigo);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.section-dark .section-tag, .section-dark-alt .section-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--primary-blue);
}

.section-title {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 1.2rem;
}

.section-dark .section-title, .section-dark-alt .section-title {
  color: var(--text-heading-light);
}

.section-light .section-title, .section-light-alt .section-title {
  color: var(--text-heading-dark);
}

.section-desc {
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.6;
}

.section-dark .section-desc, .section-dark-alt .section-desc {
  color: var(--text-muted-light);
}

.section-light .section-desc, .section-light-alt .section-desc {
  color: var(--text-muted-dark);
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2.2rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(79, 70, 229, 0.5);
  background: linear-gradient(135deg, #4338CA 0%, #2563EB 100%);
}

/* Compact nav CTA button — used only in the header */
.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.52rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  border: 1.5px solid rgba(79, 70, 229, 0.6);
  color: #FFFFFF;
  background: rgba(79, 70, 229, 0.18);
  transition: all var(--transition-fast);
  white-space: nowrap;
  backdrop-filter: blur(4px);
}

.btn-nav-cta:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
  color: #FFFFFF;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-white);
  border: 1px solid var(--border-dark);
}

.section-light .btn-secondary, .section-light-alt .btn-secondary {
  background: #FFFFFF;
  color: var(--text-heading-dark);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--primary-indigo);
  color: var(--primary-indigo);
}

.section-light .btn-secondary:hover, .section-light-alt .btn-secondary:hover {
  background: var(--bg-light-alt);
  border-color: var(--primary-indigo);
  color: var(--primary-indigo);
}

/* --- Header / Navbar & Mega Menu --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(5, 8, 20, 0.95);
  backdrop-filter: blur(12px);
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border-dark);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

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

.logo-brand {
  display: flex;
  align-items: center;
  height: 42px;
}

.logo-brand img {
  height: 42px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.8rem 0;
}

.nav-link:hover, .nav-item.active .nav-link {
  color: var(--primary-blue);
}

.nav-link svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Mega Menu Dropdown */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(15px);
  width: 900px;
  background: var(--bg-dark-alt);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  z-index: 1001;
}

.nav-item:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(5px);
}

/* Specific shorter dropdown layout for about us */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  transform: translateY(15px);
  width: 250px;
  background: var(--bg-dark-alt);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  box-shadow: 0 15px 40px rgba(0,0,0,0.4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  z-index: 1001;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(5px);
}

.dropdown-menu a {
  font-size: 0.95rem;
  color: var(--text-body-light);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  display: block;
}

.dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--primary-blue);
}

.mega-column h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary-blue);
  margin-bottom: 1.2rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-dark);
}

.mega-column ul {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.mega-column a {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  color: var(--text-body-light);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

.mega-column a:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--primary-blue);
}

.mega-icon {
  font-size: 1.1rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1.6rem;
  cursor: pointer;
}

/* --- Hero Section --- */
.hero {
  min-height: 95vh;
  padding-top: 9.5rem;
  padding-bottom: 6rem;
  display: flex;
  align-items: center;
  position: relative;
  background-color: var(--bg-dark);
  background-image: radial-gradient(circle at 15% 25%, rgba(79, 70, 229, 0.12) 0%, transparent 45%),
                    radial-gradient(circle at 85% 75%, rgba(59, 130, 246, 0.12) 0%, transparent 45%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.45rem 1.3rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--primary-blue);
  margin-bottom: 1.8rem;
}

.hero-title {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-white);
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted-light);
  margin-bottom: 2.5rem;
  max-width: 620px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  gap: 1.2rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-social-proof {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border-dark);
  padding-top: 1.5rem;
}

.proof-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.proof-item span {
  font-size: 1.2rem;
}

.proof-text {
  font-size: 0.85rem;
  color: var(--text-muted-light);
  font-weight: 500;
}

.hero-media {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
  border: 1px solid var(--border-dark);
}

.hero-image-wrapper img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

.hero-floating-card {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: rgba(9, 13, 34, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-dark);
  padding: 1.25rem 1.6rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 1.1rem;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.hero-floating-card .icon-box {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #FFF;
}

/* --- Partner Logos Marquee --- */
.partners-marquee {
  background: #FFFFFF;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 2.2rem 0;
  overflow: hidden;
}

.marquee-wrapper {
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-content {
  display: inline-block;
  animation: scroll-marquee 30s linear infinite;
  padding-left: 100%; /* pushes initial set offscreen */
}

.marquee-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: #64748b;
  margin: 0 4rem;
  opacity: 0.5;
  transition: opacity 0.3s;
}

.marquee-logo:hover {
  opacity: 0.95;
}

.marquee-logo svg {
  height: 24px;
  fill: currentColor;
}

@keyframes scroll-marquee {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-100%, 0, 0); }
}

/* --- Stats Section --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat-card {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  padding: 2.5rem 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.section-dark .stat-card, .section-dark-alt .stat-card {
  background: var(--bg-card-dark);
  border: 1px solid var(--border-dark);
  box-shadow: none;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-indigo);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary-indigo);
  margin-bottom: 0.4rem;
}

.section-dark .stat-number, .section-dark-alt .stat-number {
  color: var(--primary-blue);
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-body-dark);
  font-weight: 600;
}

.section-dark .stat-label, .section-dark-alt .stat-label {
  color: var(--text-muted-light);
}

/* --- Services & Cards Grid --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.2rem;
}

.service-card {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.section-dark .service-card, .section-dark-alt .service-card {
  background: var(--bg-card-dark);
  border: 1px solid var(--border-dark);
  box-shadow: none;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-indigo);
  box-shadow: var(--shadow-card-hover);
}

.service-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: rgba(79, 70, 229, 0.06);
  border: 1px solid rgba(79, 70, 229, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.8rem;
  font-size: 1.6rem;
  color: var(--primary-indigo);
}

.section-dark .service-icon, .section-dark-alt .service-icon {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--primary-blue);
}

.service-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-heading-dark);
  margin-bottom: 1rem;
}

.section-dark .service-title, .section-dark-alt .service-title {
  color: var(--text-white);
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-body-dark);
  margin-bottom: 1.8rem;
  line-height: 1.6;
}

.section-dark .service-desc, .section-dark-alt .service-desc {
  color: var(--text-muted-light);
}

.service-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary-indigo);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.section-dark .service-link, .section-dark-alt .service-link {
  color: var(--primary-blue);
}

.service-link:hover {
  gap: 0.7rem;
}

/* --- Timeline: Software Engineering Process --- */
.timeline {
  position: relative;
  max-width: 1000px;
  margin: 3.5rem auto 0 auto;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--border-light);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
}

.timeline-container {
  padding: 10px 40px;
  position: relative;
  width: 50%;
  box-sizing: border-box;
}

.timeline-container::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  right: -9px;
  background-color: #FFFFFF;
  border: 4px solid var(--primary-indigo);
  top: 25px;
  border-radius: 50%;
  z-index: 1;
  transition: all 0.3s;
}

.left { left: 0; }
.right { left: 50%; }
.right::after { left: -9px; }

.timeline-content {
  padding: 2rem;
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  position: relative;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.timeline-content:hover {
  transform: translateY(-3px);
  border-color: var(--primary-indigo);
  box-shadow: var(--shadow-md);
}

.timeline-step {
  display: inline-block;
  font-weight: 700;
  color: var(--primary-indigo);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.timeline-content h3 {
  font-size: 1.3rem;
  color: var(--text-heading-dark);
  margin-bottom: 0.75rem;
}

.timeline-content p {
  font-size: 0.95rem;
  color: var(--text-body-dark);
}

/* --- FAQ Accordion --- */
.faq-container {
  max-width: 850px;
  margin: 3.5rem auto 0 auto;
}

.faq-item {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-sm);
}

.faq-header {
  padding: 1.4rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-heading-dark);
  user-select: none;
}

.faq-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--primary-indigo);
}

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  padding: 0 2rem;
}

.faq-body p {
  padding-bottom: 1.4rem;
  color: var(--text-body-dark);
  font-size: 0.98rem;
  line-height: 1.65;
}

.faq-item.active {
  border-color: var(--primary-indigo);
  box-shadow: var(--shadow-md);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-item.active .faq-body {
  max-height: 300px;
}

/* --- Technology Stack Grid --- */
.tech-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.8rem;
}

.tech-item {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.tech-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary-indigo);
  box-shadow: var(--shadow-md);
}

.tech-icon {
  font-size: 2.2rem;
  margin-bottom: 0.8rem;
  display: block;
}

.tech-item span {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-heading-dark);
}

/* --- Industry Verticals --- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.industry-card {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.industry-card:hover {
  border-color: var(--primary-indigo);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.industry-icon {
  font-size: 2.5rem;
  margin-bottom: 1.2rem;
  display: block;
}

.industry-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-heading-dark);
  margin-bottom: 0.8rem;
}

.industry-desc {
  font-size: 0.95rem;
  color: var(--text-body-dark);
}

/* --- Portfolio & Case Studies --- */
.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.65rem 1.6rem;
  border-radius: var(--radius-full);
  background: var(--bg-light-alt);
  border: 1px solid var(--border-light);
  color: var(--text-body-dark);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--gradient-primary);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.2rem;
}

.portfolio-card {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--primary-indigo);
}

.portfolio-img {
  height: 240px;
  width: 100%;
  object-fit: cover;
  border-bottom: 1px solid var(--border-light);
}

.portfolio-body {
  padding: 2rem;
}

.portfolio-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary-indigo);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 0.6rem;
}

.portfolio-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-heading-dark);
  margin-bottom: 0.8rem;
}

.portfolio-desc {
  font-size: 0.95rem;
  color: var(--text-body-dark);
  margin-bottom: 1.5rem;
}

/* --- Team Bios --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
}

.team-card {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all var(--transition-normal);
}

.team-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-indigo);
  box-shadow: var(--shadow-md);
}

.team-img {
  height: 240px;
  width: 100%;
  object-fit: cover;
}

.team-info {
  padding: 1.5rem 1rem;
}

.team-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-heading-dark);
  margin-bottom: 0.3rem;
}

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

/* --- Blog & Detail Section --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.2rem;
}

.blog-card {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.blog-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-indigo);
  box-shadow: var(--shadow-md);
}

.blog-img {
  height: 200px;
  width: 100%;
  object-fit: cover;
}

.blog-content {
  padding: 1.8rem;
}

.blog-meta {
  font-size: 0.8rem;
  color: var(--text-muted-dark);
  display: flex;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

.blog-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-heading-dark);
  line-height: 1.4;
  margin-bottom: 0.8rem;
}

.blog-title a:hover {
  color: var(--primary-indigo);
}

/* Detail Pages Layout */
.article-header {
  padding-top: 9.5rem;
  padding-bottom: 3.5rem;
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}

.article-banner {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 3.5rem;
  border: 1px solid var(--border-light);
}

.article-body {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-body-dark);
}

.article-body h2 {
  font-size: 1.8rem;
  color: var(--text-heading-dark);
  margin: 2.5rem 0 1.2rem 0;
}

.article-body h3 {
  font-size: 1.4rem;
  color: var(--primary-indigo);
  margin: 2rem 0 1rem 0;
}

.article-body p {
  margin-bottom: 1.8rem;
}

.article-body blockquote {
  border-left: 4px solid var(--primary-indigo);
  padding: 1.2rem 1.8rem;
  background: var(--bg-light-alt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 2.5rem 0;
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-heading-dark);
}

/* --- Contact & Quote Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 4rem;
}

.contact-info-box {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  padding: 3rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(79, 70, 229, 0.06);
  border: 1px solid rgba(79, 70, 229, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-indigo);
  font-size: 1.3rem;
  flex-shrink: 0;
}

.form-box {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  padding: 3.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

@media (max-width: 768px) {
  .contact-info-box, .form-box {
    padding: 1.8rem 1.25rem !important;
  }
  .form-row {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }
}


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

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-heading-dark);
  margin-bottom: 0.6rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.9rem 1.3rem;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-heading-dark);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--primary-indigo);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

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

/* --- Engagement Model Card Grid --- */
.engagement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.2rem;
}

.engagement-card {
  background: var(--bg-card-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 3rem 2.2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  text-align: center;
  position: relative;
}

.engagement-card.featured {
  border: 2px solid var(--primary-indigo);
  box-shadow: var(--shadow-md);
}

.engagement-card.featured .popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-indigo);
  color: #FFFFFF;
  padding: 0.3rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.engagement-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-heading-dark);
  margin-bottom: 0.8rem;
}

.engagement-sub {
  font-size: 0.9rem;
  color: var(--text-muted-dark);
  margin-bottom: 1.8rem;
}

.engagement-features {
  text-align: left;
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.engagement-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--text-body-dark);
}

.engagement-features li span {
  color: #10B981;
  font-weight: 700;
}

/* --- Footer --- */
.footer {
  background: #030408;
  border-top: 1px solid var(--border-dark);
  padding-top: 6rem;
  padding-bottom: 2.5rem;
  color: var(--text-muted-light);
}

/* Footer grid also works inside .footer > .container */
.footer .container { padding-bottom: 0; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 3.5rem;
  margin-bottom: 4rem;
}

/* When footer-grid is used directly inside .footer (older pages use container > footer-grid) */
.footer > .container > .footer-grid,
.footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-col {
  /* no additional layout needed - child of footer-grid */
}

.footer-brand p {
  margin-top: 1.2rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.6;
}



.footer-col h4 {
  color: var(--text-white);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-col a {
  font-size: 0.95rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}

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

/* --- Footer heading / links utility classes --- */
:root { --text-white: #F8FAFC; --text-muted: #94A3B8; }

.footer-heading {
  color: var(--text-white);
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 1.3rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  list-style: none;
  padding: 0;
}

.footer-links li, .footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted-light);
}

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

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted-light);
  transition: all var(--transition-fast);
}
.social-icon:hover {
  background: rgba(79,70,229,0.2);
  border-color: rgba(79,70,229,0.5);
  color: #818CF8;
}



/* --- Responsive Styles & Media Queries --- */
/* --- Responsive Styles & Media Queries --- */
@media (max-width: 1024px) {
  .container { padding: 0 1.5rem; }
  .hero-title { font-size: 2.8rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-image-wrapper img { height: 380px; }
  .hero-floating-card { left: 20px; bottom: -10px; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .engagement-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  
  .footer-grid,
  .footer > .container > .footer-grid,
  .footer .footer-grid {
    grid-template-columns: 1fr 1fr !important;
    gap: 2.5rem !important;
  }

  .mega-menu, .dropdown-menu { display: none !important; }
  .mobile-toggle { display: block; }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-dark-alt);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2.2rem 2.2rem 2.2rem;
    transition: right var(--transition-normal);
    box-shadow: -10px 0 35px rgba(0,0,0,0.7);
    gap: 1.5rem;
    overflow-y: auto;
    z-index: 9999;
  }
  .nav-menu.open {
    right: 0;
  }
  .nav-link {
    font-size: 1.1rem;
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 768px) {
  .section { padding: 3.8rem 0; }
  .container { padding: 0 1.25rem; }
  .hero-title { font-size: 2.1rem; }
  .hero-subtitle { font-size: 1rem; }
  .section-title { font-size: 2rem; }
  
  .cards-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .industry-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  
  /* Footer Responsiveness */
  .footer { padding-top: 3.5rem; padding-bottom: 2rem; }
  .footer-grid,
  .footer > .container > .footer-grid,
  .footer .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
    margin-bottom: 2.5rem !important;
  }
  .footer-bottom { 
    flex-direction: column; 
    text-align: center; 
    gap: 1rem;
    align-items: center;
  }
  .footer-bottom div:last-child {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  /* Buttons & Layouts */
  .btn { width: 100%; max-width: 100%; }
  .btn-nav-cta { padding: 0.45rem 0.95rem; font-size: 0.8rem; }
  
  .timeline::after { left: 31px; }
  .timeline-container { width: 100%; padding-left: 60px; padding-right: 15px; }
  .timeline-container::after { left: 22px; }
  .right { left: 0; }
  .right::after { left: 22px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.85rem; }
  .section-title { font-size: 1.7rem; }
  .section-tag { font-size: 0.72rem; }
  .btn-nav-cta { font-size: 0.78rem; padding: 0.4rem 0.8rem; }
  .logo-brand img { height: 28px; }
}