/* =====================================================
   BI Solutions.ai - Main Stylesheet
   "Autonomation. Innovation. Transformation."
   ===================================================== */

/* ---- CSS Variables ---- */
:root {
  --primary-dark: #0a1628;
  --primary-mid: #0d1f3c;
  --primary-blue: #1a2f5e;
  --accent-cyan: #00d4ff;
  --accent-teal: #0ec5c1;
  --accent-glow: rgba(0, 212, 255, 0.3);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(0, 212, 255, 0.2);
  --text-white: #ffffff;
  --text-light: #c8d6e5;
  --text-muted: #7f9ab5;
  --card-bg: rgba(13, 31, 60, 0.7);
  --gradient-hero: linear-gradient(135deg, #0a1628 0%, #0d2144 40%, #0a3060 100%);
  --gradient-accent: linear-gradient(90deg, #00d4ff, #0ec5c1);
  --gradient-card: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(14,197,193,0.04));
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --transition: all 0.3s ease;
  --font-main: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

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

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

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

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-teal);
}

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

ul {
  list-style: none;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-light);
}

em, .tagline {
  font-style: italic;
  color: var(--accent-cyan);
}

/* ---- Utility Classes ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

.section-padding-sm {
  padding: 60px 0;
}

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

.badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--accent-cyan);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--primary-dark);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.6);
  color: var(--primary-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--text-white);
  border: 2px solid rgba(0, 212, 255, 0.5);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  color: var(--text-white);
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

/* ---- Cards (Glassmorphism) ---- */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 32px;
  transition: var(--transition);
}

.glass-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}

/* ---- Navigation ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 0;
  background: rgba(10, 22, 40, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo {
  height: 44px;
  width: auto;
  vertical-align: middle;
  transition: transform 0.3s ease;
}

.nav-logo:hover {
  transform: scale(1.05);
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
}

.nav-link .chevron {
  width: 14px;
  height: 14px;
  transition: transform 0.3s ease;
}

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

/* Dropdown */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: rgba(10, 22, 40, 0.98);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--border-radius);
  min-width: 240px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.25s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-light);
  font-size: 0.875rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  text-decoration: none;
}

.dropdown-item:hover {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-cyan);
  transform: translateX(4px);
}

.dropdown-item .icon {
  width: 32px;
  height: 32px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.nav-cta {
  margin-left: 12px;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-white);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: 72px;
  background: rgba(10, 22, 40, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  padding: 24px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s ease;
}

.mobile-overlay.open {
  transform: translateX(0);
}

.mobile-nav-section {
  margin-bottom: 24px;
}

.mobile-nav-label {
  font-size: 0.75rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-left: 8px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  color: var(--text-light);
  font-size: 1rem;
  border-radius: var(--border-radius-sm);
  transition: var(--transition);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.mobile-nav-link:hover {
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
}

/* ---- Hero Section ---- */
.hero {
  min-height: 100vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(14, 197, 193, 0.08) 0%, transparent 70%);
  bottom: -50px;
  left: -50px;
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: var(--text-white);
}

.hero h1 span {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: 1.2rem;
  font-style: italic;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  display: block;
  font-weight: 500;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

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

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 3rem;
  flex-wrap: wrap;
}

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

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-dashboard {
  background: rgba(13, 31, 60, 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 20px;
  padding: 28px;
  width: 100%;
  max-width: 460px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 212, 255, 0.1);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.dashboard-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-white);
}

.dashboard-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: #00ff88;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: #00ff88;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.dashboard-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.metric-card {
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.12);
  border-radius: 10px;
  padding: 14px;
}

.metric-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.metric-value {
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-change {
  font-size: 0.7rem;
  color: #00ff88;
  margin-top: 2px;
}

.chart-area {
  background: rgba(0, 212, 255, 0.04);
  border: 1px solid rgba(0, 212, 255, 0.08);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 60px;
}

.bar {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-teal));
  opacity: 0.7;
  transition: opacity 0.3s;
  animation: barGrow 1s ease-out forwards;
  transform-origin: bottom;
}

.bar:hover { opacity: 1; }

@keyframes barGrow {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

.dashboard-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.dash-tag {
  padding: 4px 10px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 20px;
  font-size: 0.7rem;
  color: var(--accent-cyan);
}

/* Floating shapes */
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
  animation: floatShape 8s ease-in-out infinite;
}

.shape-1 {
  width: 80px; height: 80px;
  background: var(--accent-cyan);
  top: 10%; right: 5%;
  animation-delay: 0s;
}

.shape-2 {
  width: 50px; height: 50px;
  background: var(--accent-teal);
  top: 60%; right: 20%;
  animation-delay: 2s;
}

.shape-3 {
  width: 30px; height: 30px;
  background: var(--accent-cyan);
  top: 30%; right: 35%;
  animation-delay: 4s;
  border-radius: 4px;
  transform: rotate(45deg);
}

@keyframes floatShape {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

/* ---- Section Headings ---- */
.section-heading {
  text-align: center;
  margin-bottom: 60px;
}

.section-heading h2 {
  color: var(--text-white);
  margin-bottom: 1rem;
}

.section-heading p {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-light);
}

.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-accent);
  margin: 16px auto;
  border-radius: 2px;
}

/* ---- Our Expertise Section ---- */
.expertise-section {
  background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-mid) 100%);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.expertise-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

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

.expertise-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}

.expertise-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(14,197,193,0.08));
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 20px;
}

.expertise-card h3 {
  font-size: 1.15rem;
  color: var(--text-white);
  margin-bottom: 10px;
}

.expertise-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.6;
}

.expertise-link {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  transition: var(--transition);
}

.expertise-link:hover {
  gap: 10px;
  color: var(--accent-teal);
}

/* Tech Stack */
.tech-stack {
  margin-top: 80px;
}

.tech-stack h3 {
  text-align: center;
  font-size: 1rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 32px;
}

.tech-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.65;
  transition: var(--transition);
}

.tech-item:hover {
  opacity: 1;
}

.tech-item .icon {
  font-size: 2rem;
  filter: grayscale(0.3);
}

.tech-item span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---- Why Choose Us ---- */
.why-section {
  background: linear-gradient(135deg, var(--primary-mid) 0%, var(--primary-dark) 100%);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.why-item {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: rgba(13, 31, 60, 0.5);
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.why-item:hover {
  border-color: rgba(0, 212, 255, 0.3);
  background: rgba(0, 212, 255, 0.05);
}

.why-icon {
  width: 52px;
  height: 52px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.why-content h4 {
  color: var(--text-white);
  margin-bottom: 8px;
}

.why-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

/* ---- Contact Section ---- */
.contact-section {
  background: linear-gradient(180deg, var(--primary-dark) 0%, #060f1e 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-info h2 {
  color: var(--text-white);
  margin-bottom: 1rem;
}

.contact-info .tagline {
  font-size: 1rem;
  margin-bottom: 1.5rem;
  display: block;
}

.contact-info p {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: var(--border-radius-sm);
}

.contact-detail-item .icon {
  font-size: 1.25rem;
}

.contact-detail-item span {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* Contact Form */
.contact-form {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-light);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-sm);
  color: var(--text-white);
  font-size: 0.9rem;
  font-family: var(--font-main);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group select option {
  background: var(--primary-dark);
  color: var(--text-white);
}

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

.form-success {
  display: none;
  text-align: center;
  padding: 20px;
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: var(--border-radius-sm);
  color: #00ff88;
  margin-top: 16px;
}

/* ---- Footer ---- */
footer {
  background: #060f1e;
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .logo-container {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-tagline {
  font-style: italic;
  color: var(--accent-cyan);
  font-size: 0.85rem;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.social-link {
  width: 36px;
  height: 36px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: var(--transition);
  text-decoration: none;
}

.social-link:hover {
  background: rgba(0, 212, 255, 0.15);
  color: var(--accent-cyan);
  border-color: rgba(0, 212, 255, 0.4);
}

.footer-col h4 {
  font-size: 0.9rem;
  color: var(--text-white);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

.footer-bottom em {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  font-style: italic;
}

/* ---- Service Page Hero ---- */
.page-hero {
  min-height: 50vh;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  border-radius: 50%;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--accent-cyan);
}

.breadcrumb .separator {
  color: var(--text-muted);
  opacity: 0.5;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.page-hero h1 {
  color: var(--text-white);
  margin-bottom: 1rem;
}

.page-hero p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.page-hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 2rem;
}

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

.hero-stat .number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hero-stat .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ---- Features Grid ---- */
.features-section {
  background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-mid) 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 32px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(14,197,193,0.08));
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.1rem;
  color: var(--text-white);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ---- Process Section ---- */
.process-section {
  background: linear-gradient(135deg, var(--primary-mid) 0%, var(--primary-dark) 100%);
}

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

.process-card {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}

.process-number {
  width: 48px;
  height: 48px;
  background: var(--gradient-accent);
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 1.2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.process-card h4 {
  color: var(--text-white);
  margin-bottom: 10px;
  font-size: 1rem;
}

.process-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ---- CTA Section ---- */
.cta-section {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, rgba(14, 197, 193, 0.05) 100%);
  border-top: 1px solid rgba(0, 212, 255, 0.1);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  text-align: center;
  padding: 80px 0;
}

.cta-section h2 {
  color: var(--text-white);
  margin-bottom: 1rem;
}

.cta-section p {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
}

.cta-section .tagline {
  display: block;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Client Cards ---- */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.client-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.client-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: var(--shadow-glow);
}

.client-logo-placeholder {
  width: 60px;
  height: 60px;
  background: var(--gradient-accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin: 0 auto 14px;
}

.client-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 6px;
}

.client-industry {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 32px;
  transition: var(--transition);
}

.testimonial-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: var(--shadow-glow);
}

.stars {
  color: #ffd700;
  font-size: 1rem;
  margin-bottom: 16px;
  display: block;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-light);
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 20px;
  position: relative;
  padding-left: 20px;
}

.testimonial-text::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -5px;
  font-size: 2rem;
  color: var(--accent-cyan);
  font-style: normal;
  line-height: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--gradient-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.author-info .name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-white);
  display: block;
}

.author-info .role {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
}

/* Case Study Cards */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}

.case-card-header {
  padding: 24px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(14, 197, 193, 0.05));
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 14px;
}

.case-card-icon {
  width: 50px;
  height: 50px;
  background: rgba(0, 212, 255, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.case-card-meta .category {
  font-size: 0.7rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.case-card-meta .title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-white);
}

.case-card-body {
  padding: 24px;
}

.case-challenge {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.case-results {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.result-badge {
  padding: 6px 12px;
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: 20px;
  font-size: 0.75rem;
  color: #00ff88;
  font-weight: 600;
}

.case-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.case-tag {
  padding: 4px 10px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 12px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Filter Tabs */
.filter-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-tab {
  padding: 8px 20px;
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 50px;
  color: var(--text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
}

.filter-tab:hover,
.filter-tab.active {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ---- Scroll Animations ---- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }
.fade-in-delay-6 { transition-delay: 0.6s; }

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

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

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

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

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

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

@media (max-width: 768px) {
  .nav-menu,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-overlay {
    display: block;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    order: -1;
  }

  .hero-dashboard {
    max-width: 100%;
  }

  .hero-stats {
    gap: 24px;
  }

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

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

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

  .testimonials-grid,
  .case-studies-grid {
    grid-template-columns: 1fr;
  }

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

  .page-hero-stats {
    gap: 20px;
    flex-wrap: wrap;
  }

  .section-padding {
    padding: 60px 0;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

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

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    justify-content: space-around;
  }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-cyan);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-teal);
}