/* ==========================================================================
   NAVEEN VINOD V T - PORTFOLIO DESIGN SYSTEM
   Modern Zero-to-One / AI & Automation Technical Project Manager Aesthetic
   Inspired by contemporary high-agency builder portfolios
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette */
  --bg-main: #f8fafc;
  --bg-gradient-mesh: radial-gradient(at 15% 15%, rgba(99, 102, 241, 0.08) 0px, transparent 45%),
                      radial-gradient(at 85% 20%, rgba(168, 85, 247, 0.07) 0px, transparent 40%),
                      radial-gradient(at 50% 80%, rgba(59, 130, 246, 0.06) 0px, transparent 50%);
  
  --surface-card: rgba(255, 255, 255, 0.82);
  --surface-card-hover: rgba(255, 255, 255, 0.95);
  --surface-elevated: #ffffff;
  --surface-subtle: #f1f5f9;
  
  --border-subtle: rgba(226, 232, 240, 0.8);
  --border-glass: rgba(255, 255, 255, 0.9);
  --border-glow: rgba(99, 102, 241, 0.25);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  /* Brand Accents & Gradients */
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-border: #c7d2fe;
  
  --accent-purple: #7c3aed;
  --accent-blue: #2563eb;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  
  --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #2563eb 100%);
  --gradient-text: linear-gradient(135deg, #312e81 0%, #4f46e5 50%, #7c3aed 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.92) 0%, rgba(245, 247, 255, 0.75) 100%);
  --gradient-badge: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-card: 0 12px 36px -4px rgba(15, 23, 42, 0.06), 0 4px 12px -2px rgba(99, 102, 241, 0.04);
  --shadow-card-hover: 0 24px 50px -8px rgba(99, 102, 241, 0.16), 0 8px 24px -4px rgba(15, 23, 42, 0.06);
  --shadow-elevated: 0 20px 40px -15px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 28px rgba(99, 102, 241, 0.35);

  /* Typography */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Layout & Spacing */
  --max-width: 1240px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;
  
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  background-image: var(--bg-gradient-mesh);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Background Subtle Grid Texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-padding {
  padding-top: 100px;
  padding-bottom: 100px;
}

@media (max-width: 768px) {
  .section-padding {
    padding-top: 64px;
    padding-bottom: 64px;
  }
}

/* Typography Helpers */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.gradient-text-alt {
  background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

/* Section Header (Consistent with Vishag's Portfolio) */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  margin-bottom: 18px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border: 1.5px solid rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.08);
  border-radius: var(--radius-pill);
}

.section-eyebrow span.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--primary);
}

.section-title {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }
  .section-desc {
    font-size: 1rem;
  }
}

/* --------------------------------------------------------------------------
   3. Sticky Glass Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all var(--transition-normal);
  background: rgba(248, 250, 252, 0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 4px 24px -2px rgba(15, 23, 42, 0.06);
  border-bottom-color: rgba(226, 232, 240, 0.9);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}

.nav-brand:hover {
  opacity: 0.85;
}

.nav-brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gradient-brand);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.6);
}

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

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: var(--radius-pill);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--gradient-brand);
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
  transition: all var(--transition-normal);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.42);
  opacity: 0.95;
}

.mobile-menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--border-subtle);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  color: var(--text-primary);
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* Mobile Drawer Overlay */
.mobile-nav-drawer {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.1);
  padding: 24px;
  display: none;
  flex-direction: column;
  gap: 16px;
  z-index: 99;
}

.mobile-nav-drawer.open {
  display: flex;
  animation: slideDown 0.25s ease-out;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav-link {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 8px 0;
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

@media (max-width: 960px) {
  .nav-links, .nav-cta {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
}

/* --------------------------------------------------------------------------
   4. Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 130px;
  padding-bottom: 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-badge-row {
  margin-bottom: 20px;
}

.hero-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 18px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.hero-subtitle {
  font-size: 1.18rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 620px;
}

.hero-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(226, 232, 240, 0.9);
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.hero-tag:hover {
  background: #ffffff;
  border-color: var(--primary-border);
  color: var(--primary);
  transform: translateY(-1px);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-pill);
  transition: all var(--transition-normal);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  color: #ffffff;
  background: var(--gradient-brand);
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(79, 70, 229, 0.45);
  opacity: 0.95;
}

.btn-secondary {
  color: var(--primary);
  background: rgba(255, 255, 255, 0.9);
  border: 1.5px solid var(--primary-border);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

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

/* Hero Right Side: Interactive AI & Operations Pipeline Card */
.hero-visual-card {
  position: relative;
}

.hero-visual-glow {
  position: absolute;
  inset: -15px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(168, 85, 247, 0.2) 100%);
  filter: blur(36px);
  border-radius: var(--radius-xl);
  z-index: 0;
  pointer-events: none;
}

.hero-interactive-board {
  position: relative;
  z-index: 1;
  background: var(--gradient-card);
  backdrop-filter: blur(20px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-xl);
  padding: 30px;
  transition: all var(--transition-normal);
}

.hero-interactive-board:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.board-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.board-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-primary);
}

.board-title-badge {
  padding: 3px 8px;
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
}

.board-pill {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

/* Pipeline Architecture Nodes inside Hero Card */
.pipeline-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.pipeline-node {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.03);
  transition: all var(--transition-fast);
}

.pipeline-node:hover {
  border-color: var(--primary-border);
  transform: translateX(3px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
}

.node-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.node-icon-box {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.node-icon-rag { background: #eff6ff; color: #1d4ed8; }
.node-icon-agent { background: #f5f3ff; color: #6d28d9; }
.node-icon-n8n { background: #fff7ed; color: #c2410c; }
.node-icon-mcp { background: #ecfdf5; color: #047857; }

.node-info h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.node-info p {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.node-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #059669;
}

.board-metrics-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
}

.board-metric {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.board-metric span.val {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}

.board-metric span.lbl {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-title {
    font-size: 2.8rem;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
}

/* --------------------------------------------------------------------------
   5. Operational Impact Metrics Bar
   -------------------------------------------------------------------------- */
.metrics-section {
  padding-top: 20px;
  padding-bottom: 60px;
}

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.metric-card {
  background: var(--gradient-card);
  backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.metric-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.metric-card:hover::after {
  opacity: 1;
}

.metric-number {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 6px;
}

.metric-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.metric-sublabel {
  font-size: 0.78rem;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .metrics-strip {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   6. Product Solves & Tactical Artifacts (Signature Glassmorphism Grid)
   -------------------------------------------------------------------------- */
.solves-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.solve-card {
  background: var(--gradient-card);
  backdrop-filter: blur(20px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-xl);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.solve-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.solve-card-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.solve-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.solve-card:hover .solve-icon-box {
  transform: scale(1.08);
}

.solve-meta-head {
  display: flex;
  flex-direction: column;
}

.solve-context-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.solve-domain-pill {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-top: 2px;
}

.solve-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 14px;
}

.solve-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 22px;
  flex-grow: 1;
}

.solve-bullets li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.bullet-icon {
  flex-shrink: 0;
  font-size: 1.05rem;
  line-height: 1.4;
  margin-top: 1px;
}

.bullet-text {
  flex: 1;
  display: block;
}

.bullet-text strong,
.solve-bullets li strong {
  color: var(--text-primary);
  font-weight: 700;
}

.solve-metrics-row {
  display: flex;
  gap: 24px;
  padding: 14px 0;
  margin-bottom: 20px;
  border-top: 1px solid rgba(226, 232, 240, 0.7);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.solve-metric-col {
  display: flex;
  flex-direction: column;
}

.solve-metric-col .val {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}

.solve-metric-col .lbl {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

/* Action Buttons within Card (Vishag's style) */
.solve-actions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 20px;
  margin-top: auto;
}

.card-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.card-btn-green {
  background: #ffffff;
  color: #065f46;
  border: 1px solid #a7f3d0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.card-btn-green:hover {
  background: #ecfdf5;
  border-color: #34d399;
  transform: translateY(-1px);
}

.card-btn-blue {
  background: #ffffff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.card-btn-blue:hover {
  background: #eff6ff;
  border-color: #60a5fa;
  transform: translateY(-1px);
}

.card-btn-purple {
  background: #ffffff;
  color: #5b21b6;
  border: 1px solid #ddd6fe;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.card-btn-purple:hover {
  background: #f5f3ff;
  border-color: #a78bfa;
  transform: translateY(-1px);
}

.card-btn-modal {
  grid-column: span 2;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  font-weight: 700;
}

.card-btn-modal:hover {
  background: #ffffff;
  border-color: var(--primary-border);
  color: var(--primary);
  transform: translateY(-1px);
}

.solve-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 14px;
  border-top: 1px solid rgba(226, 232, 240, 0.6);
}

.solve-tag {
  padding: 4px 10px;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-pill);
}

@media (max-width: 900px) {
  .solves-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   7. Zero → One Spotlight Feature Builds
   -------------------------------------------------------------------------- */
.spotlight-stack {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.spotlight-card {
  background: var(--gradient-card);
  backdrop-filter: blur(20px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
  transition: all var(--transition-normal);
}

.spotlight-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.spotlight-card.reverse {
  grid-template-columns: 1fr 1fr;
}

.spotlight-card.reverse .spotlight-visual {
  order: 1;
}

.spotlight-card.reverse .spotlight-info {
  order: 2;
}

.spotlight-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.12);
  border: 1px solid rgba(226, 232, 240, 0.8);
  background: #ffffff;
  cursor: pointer;
}

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

.spotlight-visual:hover .spotlight-img {
  transform: scale(1.02);
}

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

.spotlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  width: fit-content;
}

.spotlight-title {
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.spotlight-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.spotlight-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 26px;
}

.spotlight-features li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.spotlight-features li span.check {
  color: var(--accent-emerald);
  font-weight: 800;
  font-size: 1.05rem;
}

.spotlight-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

@media (max-width: 960px) {
  .spotlight-card, .spotlight-card.reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .spotlight-card.reverse .spotlight-visual {
    order: unset;
  }
  .spotlight-card.reverse .spotlight-info {
    order: unset;
  }
  .spotlight-card {
    padding: 28px;
  }
}

/* --------------------------------------------------------------------------
   8. Career Journey & Experience Timeline
   -------------------------------------------------------------------------- */
.experience-container {
  max-width: 920px;
  margin: 0 auto;
  position: relative;
}

.timeline {
  position: relative;
  padding-left: 36px;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 7px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--accent-purple) 60%, rgba(99, 102, 241, 0.2) 100%);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -36px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  border: 3.5px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
  transition: all var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.25);
  background: var(--primary);
  border-color: #ffffff;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.6);
}

.timeline-card {
  background: var(--gradient-card);
  backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.timeline-role-info h3 {
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
}

.timeline-period {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.9);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
}

.timeline-responsibilities {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.timeline-responsibilities li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  position: relative;
  padding-left: 20px;
}

.timeline-responsibilities li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 1.05rem;
}

.timeline-responsibilities li strong {
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   9. Core Expertise & Toolkit (Categorized)
   -------------------------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-card {
  background: var(--gradient-card);
  backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-normal);
}

.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.skill-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.skill-card-icon {
  font-size: 1.35rem;
}

.skill-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.skill-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(226, 232, 240, 0.85);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  background: #ffffff;
  border-color: var(--primary-border);
  color: var(--primary);
  transform: translateY(-1px);
}

@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   10. Writing & Thought Leadership
   -------------------------------------------------------------------------- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--gradient-card);
  backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.article-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.article-pill {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #15803d;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}

.article-arrow {
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: transform var(--transition-fast);
}

.article-card:hover .article-arrow {
  transform: translate(3px, -3px);
  color: var(--primary);
}

.article-title {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

.article-card:hover .article-title {
  color: var(--primary);
}

.article-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.article-footer {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 900px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   11. Contact & Project Consultation Section
   -------------------------------------------------------------------------- */
.contact-section {
  padding-bottom: 80px;
}

.contact-channels-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.channel-card {
  background: var(--gradient-card);
  backdrop-filter: blur(16px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  transition: all var(--transition-normal);
  text-decoration: none;
  color: inherit;
}

.channel-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: #ffffff;
}

.channel-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--primary);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.04);
}

.channel-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
}

.channel-handle {
  font-size: 0.8rem;
  color: var(--text-muted);
  word-break: break-all;
}

/* Consultation Form Box */
.inquiry-box {
  max-width: 760px;
  margin: 0 auto;
  background: var(--gradient-card);
  backdrop-filter: blur(20px);
  border: 1.5px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.inquiry-head {
  text-align: center;
  margin-bottom: 30px;
}

.inquiry-head h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

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

.inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(203, 213, 225, 0.8);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

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

.form-submit-btn {
  width: 100%;
  padding: 14px 24px;
  font-size: 0.98rem;
  font-weight: 800;
  color: #ffffff;
  background: var(--gradient-brand);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35);
  transition: all var(--transition-normal);
}

.form-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.45);
  opacity: 0.95;
}

@media (max-width: 768px) {
  .contact-channels-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .inquiry-box {
    padding: 24px;
  }
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: rgba(255, 255, 255, 0.85);
  border-top: 1px solid var(--border-subtle);
  padding: 40px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  transition: color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   13. Interactive Project Details Modal
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(8px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-dialog {
  background: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.25);
  max-width: 780px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
  transform: translateY(15px);
  transition: transform 0.25s ease;
}

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

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: #fee2e2;
  color: #ef4444;
}

.modal-category-tag {
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  display: block;
}

.modal-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 20px;
}

.modal-image-preview {
  margin-bottom: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.modal-image-preview img {
  width: 100%;
  height: auto;
}

.modal-content-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.modal-content-body h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-top: 22px;
  margin-bottom: 10px;
}

.modal-content-body ul {
  padding-left: 20px;
  margin-bottom: 16px;
}

.modal-content-body li {
  margin-bottom: 6px;
}

.modal-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
}

.modal-tag {
  padding: 5px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-pill);
}

/* Modal Switcher Tabs */
.modal-tabs-nav {
  display: flex;
  gap: 8px;
  background: var(--surface-subtle);
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 24px;
  overflow-x: auto;
}

.modal-tab-btn {
  flex: 1;
  min-width: max-content;
  padding: 10px 16px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.modal-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.7);
}

.modal-tab-btn.active {
  color: var(--text-primary);
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

/* Modal Tab Panes */
.modal-tab-pane {
  animation: fadeInModal 0.2s ease-out;
}

@keyframes fadeInModal {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* KPI Banner inside Modal */
.modal-kpi-banner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  background: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 24px;
}

.modal-kpi-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2px;
}

.modal-kpi-box .val {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.modal-kpi-box .lbl {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Pipeline Flow Diagram in Modal */
.pipeline-flow-diagram {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 18px 0 24px 0;
}

.flow-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
}

.step-num {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 8px;
  border-radius: 6px;
  line-height: 1;
  flex-shrink: 0;
}

.step-content {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.step-content strong {
  color: var(--text-primary);
}

/* Specs Table */
.specs-table-wrapper {
  margin: 16px 0 24px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.specs-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.specs-table tr:last-child td {
  border-bottom: none;
}

.specs-table tr:nth-child(even) td {
  background: rgba(248, 250, 252, 0.6);
}

.specs-table td:first-child {
  width: 32%;
  color: var(--text-primary);
  font-weight: 700;
}

@media (max-width: 600px) {
  .modal-kpi-banner {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .modal-tabs-nav {
    flex-direction: column;
  }
}

/* --------------------------------------------------------------------------
   14. Scroll & Viewport Animations
   -------------------------------------------------------------------------- */
.anim-fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.anim-fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}