/* ==========================================================================
   BLACK VECTOR DESIGN SYSTEM & STYLESHEET
   Inspiration: Apple, Cloudflare, Stripe, CrowdStrike, Darktrace, SentinelOne
   Palette: Pure Black (#050505), Dark Graphite (#0D0D11), Electric Blue (#2F81F7), Neon Cyan (#38BDF8)
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-primary: #050505;
  --bg-secondary: #0a0b0e;
  --bg-card: #101116;
  --bg-card-hover: #151720;
  --bg-card-glass: rgba(16, 17, 22, 0.75);
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-glow: rgba(47, 129, 247, 0.4);
  
  --accent-blue: #2F81F7;
  --accent-blue-glow: rgba(47, 129, 247, 0.25);
  --accent-cyan: #38BDF8;
  --accent-neon: #00F2FE;
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;

  --nav-height: 80px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  position: relative;
  background-color: var(--bg-primary);
  line-height: 1.6;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

/* Typography & Base Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
}

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

ul {
  list-style: none;
}

.text-gradient {
  background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-blue) 70%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

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

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

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

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

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

/* Section Header */
.section-header {
  max-width: 760px;
  margin: 0 auto 4rem auto;
}

.section-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.75rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Glassmorphism Panel Component */
.glass-panel {
  background: var(--bg-card-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-large {
  padding: 1.05rem 2.2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-full {
  width: 100%;
}

.btn-primary {
  background: var(--accent-blue);
  color: #FFFFFF;
  box-shadow: 0 4px 20px var(--accent-blue-glow);
}

.btn-primary:hover {
  background: #3a8bfc;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(47, 129, 247, 0.45);
}

.btn-primary .btn-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.btn-primary:hover .btn-glow {
  opacity: 1;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* Badge Pill */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  background: rgba(47, 129, 247, 0.08);
  border: 1px solid rgba(47, 129, 247, 0.25);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

/* NAVBAR */
.navbar-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition-normal), backdrop-filter var(--transition-normal), border-bottom var(--transition-normal);
}

.navbar-header.scrolled {
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.logo-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(47, 129, 247, 0.3));
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #FFFFFF;
}

.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--accent-blue);
  font-weight: 600;
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
  color: #FFFFFF;
}

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

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-fast);
}

/* HERO SECTION */
.hero-section {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 6rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  opacity: 0.03;
  pointer-events: none;
  z-index: -1;
}

.hero-bg-watermark img {
  width: 100%;
  filter: grayscale(100%) brightness(200%);
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-title {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  line-height: 1.08;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  max-width: 620px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

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

.proof-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.proof-icon {
  width: 18px;
  height: 18px;
  color: var(--accent-cyan);
}

/* HERO Visual 3D Shield Canvas */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.shield-canvas-wrapper {
  position: relative;
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
}

#shield-canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.shield-telemetry-hud {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.6rem;
  background: rgba(10, 11, 14, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.telemetry-chip {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.chip-status.online {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px #10B981;
}

.chip-label {
  color: var(--text-muted);
}

.chip-val {
  color: var(--text-primary);
  font-weight: 600;
}

.chip-val.highlight {
  color: var(--accent-cyan);
}

/* LIVE DEMO / AI SECURITY SANDBOX SECTION */
.sandbox-section {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.sandbox-card {
  overflow: hidden;
  border-color: rgba(47, 129, 247, 0.3);
}

.sandbox-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #090a0d;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.window-controls {
  display: flex;
  gap: 0.4rem;
}

.window-controls .dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.window-controls .dot.red { background: #FF5F56; }
.window-controls .dot.yellow { background: #FFBD2E; }
.window-controls .dot.green { background: #27C93F; }

.sandbox-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

.sandbox-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.sandbox-status .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse-dot 1.5s infinite;
}

.sandbox-body {
  padding: 2rem;
}

.input-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.preset-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.preset-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.preset-btn:hover, .preset-btn.active {
  background: rgba(47, 129, 247, 0.12);
  border-color: rgba(47, 129, 247, 0.4);
  color: #FFFFFF;
}

.custom-input-group {
  margin-bottom: 1.5rem;
}

.sandbox-textarea {
  width: 100%;
  background: #08090b;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition-fast);
}

.sandbox-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 12px var(--accent-blue-glow);
}

/* Terminal Screen Output */
.sandbox-right {
  display: flex;
  flex-direction: column;
  background: #060709;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: #0c0d12;
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.score-badge {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
}

.score-badge.safe {
  background: rgba(16, 185, 129, 0.15);
  color: #10B981;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.score-badge.danger {
  background: rgba(239, 68, 68, 0.15);
  color: #EF4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.terminal-screen {
  padding: 1.25rem;
  height: 290px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
}

.term-line {
  margin-bottom: 0.5rem;
  word-break: break-word;
}

.term-line.sys { color: var(--text-muted); }
.term-line.alert { color: var(--accent-cyan); }
.term-line.threat { color: #EF4444; font-weight: 600; }
.term-line.sanitized { color: #10B981; font-weight: 600; }
.term-line.highlight { color: #F59E0B; }

/* ABOUT SECTION */
.about-section {
  background: var(--bg-primary);
}

.about-p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.about-p.highlight-p {
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: 500;
}

.vision-box {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem;
  margin-top: 2rem;
  border-left: 3px solid var(--accent-blue);
}

.vision-icon {
  width: 42px;
  height: 42px;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.vision-text h4 {
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  margin-bottom: 0.4rem;
}

.vision-text p {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Founder Executive Card */
.founder-card {
  padding: 2.5rem;
  position: relative;
  border-color: rgba(47, 129, 247, 0.25);
  background: linear-gradient(145deg, rgba(16, 17, 22, 0.9) 0%, rgba(21, 23, 32, 0.6) 100%);
}

.founder-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--accent-blue);
  background: rgba(47, 129, 247, 0.1);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.founder-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.founder-avatar {
  position: relative;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--accent-blue-glow);
}

.avatar-initials {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
}

.status-indicator {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #10B981;
  border: 2px solid var(--bg-card);
}

.founder-info h3 {
  font-size: 1.4rem;
  margin-bottom: 0.25rem;
}

.founder-title {
  display: block;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.founder-email {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.founder-email:hover {
  color: var(--accent-blue);
}

.founder-quote {
  font-style: italic;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  padding-left: 1rem;
  border-left: 2px solid rgba(255, 255, 255, 0.15);
  margin-bottom: 1.75rem;
}

.founder-expertise {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.exp-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

/* SERVICES SECTION */
.services-section {
  background: var(--bg-secondary);
}

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

.service-card {
  padding: 2rem 1.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: rgba(47, 129, 247, 0.4);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), 0 0 25px rgba(47, 129, 247, 0.15);
}

.service-card.featured-service {
  grid-column: span 2;
  background: linear-gradient(145deg, rgba(47, 129, 247, 0.08) 0%, rgba(16, 17, 22, 0.85) 100%);
  border-color: rgba(47, 129, 247, 0.35);
}

.featured-tag {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-neon);
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.3);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.service-icon {
  width: 48px;
  height: 48px;
  background: rgba(47, 129, 247, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
}

.service-icon svg {
  width: 26px;
  height: 26px;
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.service-bullets {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.service-bullets li {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  position: relative;
  padding-left: 1.1rem;
}

.service-bullets li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent-blue);
  font-weight: 700;
}

/* STATS SECTION */
.stats-section {
  background: var(--bg-primary);
}

.stats-grid {
  gap: 1.5rem;
}

.stat-card {
  padding: 2.5rem 1.5rem;
  text-align: center;
  border-color: rgba(255, 255, 255, 0.06);
}

.stat-card:hover {
  border-color: var(--accent-blue-glow);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3.25rem;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1;
  margin-bottom: 0.75rem;
  background: linear-gradient(180deg, #FFFFFF 40%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* APPROACH TIMELINE */
.approach-section {
  background: var(--bg-secondary);
}

.timeline-wrapper {
  max-width: 1000px;
  margin: 0 auto;
}

.timeline-nav {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.step-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 0.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.step-nav-btn:hover, .step-nav-btn.active {
  background: rgba(47, 129, 247, 0.12);
  border-color: var(--accent-blue);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

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

.timeline-card-content {
  padding: 3rem;
  min-height: 220px;
}

.step-pane {
  display: none;
}

.step-pane.active {
  display: block;
  animation: fadeIn 0.4s var(--transition-fast);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.pane-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.pane-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.pane-header h3 {
  font-size: 1.6rem;
}

.step-pane p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.pane-tags {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pane-tags span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

/* FEATURES ARCHITECTURE MATRIX */
.features-section {
  background: var(--bg-primary);
}

.arch-diagram {
  padding: 1.75rem;
  border-color: rgba(47, 129, 247, 0.25);
}

.arch-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.arch-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: 0.5rem;
}

.arch-flow {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.arch-node {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.arch-node.highlight-node {
  background: rgba(47, 129, 247, 0.12);
  border-color: var(--accent-blue);
  color: #FFFFFF;
}

.node-info {
  display: flex;
  flex-direction: column;
}

.node-info small {
  font-size: 0.7rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.flow-line {
  width: 2px;
  height: 24px;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
}

.arrow-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-cyan);
}

.arch-node-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  width: 100%;
}

.arch-node.sub-node {
  font-size: 0.8rem;
  justify-content: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: rgba(47, 129, 247, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-item h4 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.feature-item p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* PROJECT HIGHLIGHT CASE STUDY */
.project-section {
  background: var(--bg-secondary);
}

.project-card {
  padding: 3.5rem;
  border-color: rgba(47, 129, 247, 0.3);
}

.project-tags {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.ptag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.project-heading {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.project-p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.project-highlights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.ph-box {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
}

.ph-box strong {
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.ph-box span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.project-credits {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.credit-item {
  font-size: 0.85rem;
}

.c-label {
  color: var(--text-muted);
  margin-right: 0.5rem;
}

.c-val {
  color: var(--accent-cyan);
  font-weight: 500;
}

.case-study-box {
  padding: 2rem;
  background: rgba(10, 11, 14, 0.9);
  border: 1px solid var(--border-color-glow);
  border-radius: var(--radius-md);
}

.cs-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #10B981;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 1.5rem;
}

.cs-letter-preview {
  font-size: 0.9rem;
  line-height: 1.6;
}

.cs-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.cs-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: #FFFFFF;
}

.cs-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.cs-sig span {
  color: var(--text-primary);
  font-weight: 600;
}

.cs-sig small {
  color: var(--accent-cyan);
}

/* TESTIMONIALS SECTION */
.testimonials-section {
  background: var(--bg-primary);
}

.t-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.t-stars {
  color: #F59E0B;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.t-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1.75rem;
}

.t-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.t-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(47, 129, 247, 0.2);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  border: 1px solid var(--accent-blue);
}

.t-author h5 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.t-author span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* TECH STACK GRID */
.tech-section {
  background: var(--bg-secondary);
}

.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  max-width: 960px;
  margin: 0 auto;
}

.tech-badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.tech-badge:hover {
  background: rgba(47, 129, 247, 0.1);
  border-color: var(--accent-blue);
  transform: translateY(-3px);
}

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

/* CONTACT SECTION */
.contact-section {
  background: var(--bg-primary);
}

.contact-subtitle {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.cd-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.cd-icon {
  width: 46px;
  height: 46px;
  background: rgba(47, 129, 247, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.cd-icon svg {
  width: 22px;
  height: 22px;
}

.cd-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;

}

.cd-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Interactive Map Simulation */
.map-simulation {
  position: relative;
  height: 180px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #090a0d;
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-grid-overlay {
  position: absolute;
  inset: 0;
  background-size: 20px 20px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}

.map-pin {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.pin-pulse {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 16px var(--accent-blue);
  animation: pulse-dot 2s infinite;
  margin-bottom: 0.5rem;
}

.pin-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: #FFFFFF;
  background: rgba(16, 17, 22, 0.9);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

/* Contact Form */
.contact-form-wrapper {
  padding: 3rem;
}

.form-title {
  font-size: 1.5rem;
  margin-bottom: 1.75rem;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-input {
  width: 100%;
  background: #090a0d;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 10px var(--accent-blue-glow);
}

.form-select {
  cursor: pointer;
}

.form-status-msg {
  margin-top: 1rem;
  font-size: 0.85rem;
  text-align: center;
  font-weight: 500;
}

.form-status-msg.success {
  color: #10B981;
}

/* MODAL SYSTEM */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  width: 100%;
  max-width: 640px;
  padding: 3rem;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-backdrop.active .modal-dialog {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: #FFFFFF;
}

.modal-header {
  margin-bottom: 2rem;
}

.modal-header h2 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

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

/* FOOTER */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2.5rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-desc {
  font-size: 0.85rem;
  margin-top: 1.25rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.f-col-title {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
}

.f-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.f-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

.f-contact-p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

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

.s-icon {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.s-icon:hover {
  background: var(--accent-blue);
  color: #FFFFFF;
  border-color: var(--accent-blue);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.f-legal a {
  color: var(--text-muted);
}

.f-legal a:hover {
  color: var(--text-secondary);
}

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

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-proof-bar {
    justify-content: center;
  }

  .hero-visual {
    margin-top: 2rem;
  }

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

  .service-card.featured-service {
    grid-column: span 2;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.75rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: #050505;
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

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

  .service-card.featured-service {
    grid-column: span 1;
  }

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

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

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

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .btn-large {
    width: 100%;
  }

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

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