/* ==============================================================================
   GAURAV KALE PORTFOLIO - COMPONENT STYLES & LAYOUTS
   ============================================================================== */

/* --- 1. Top Navigation Bar --- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.site-nav.scrolled {
  border-bottom-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-bright);
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.nav-menu {
  display: none;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

@media (min-width: 960px) {
  .nav-menu {
    display: flex;
  }
}

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

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: rotate(15deg);
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  cursor: pointer;
}

@media (min-width: 960px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-strong);
  padding: 1.5rem;
  transform: translateY(-120%);
  transition: transform var(--transition-normal);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-lg);
}

.mobile-drawer.open {
  transform: translateY(0);
}

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

/* --- 2. Hero Section --- */
.hero-section {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 2rem);
  padding-bottom: 4rem;
  overflow: hidden;
}

#canvas-graph {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.65;
}

[data-theme="light"] #canvas-graph {
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-badge-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.hero-role-rotator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
}

.rotator-cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent-cyan);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-title {
  margin-bottom: 1.5rem;
  color: var(--text-bright);
}

.hero-title-highlight {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #38bdf8 50%, var(--accent-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-pitch {
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.hero-bio {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.email-copy-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  background: var(--bg-card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.email-copy-pill:hover {
  border-color: var(--accent-cyan);
  color: var(--text-bright);
  background: var(--bg-card-hover);
}

/* --- 3. Proof Strip --- */
.proof-section {
  position: relative;
  z-index: 1;
  padding: 2.5rem 0 4rem;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

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

@media (min-width: 640px) {
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .proof-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.proof-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--transition-normal);
}

.proof-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-md);
}

.proof-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--text-bright) 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.proof-card:nth-child(2) .proof-value {
  background: linear-gradient(135deg, var(--text-bright) 30%, var(--accent-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.proof-label {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.35rem;
}

.proof-context {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 0.75rem;
}

.proof-source {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--accent-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* --- 4. Differentiators Section --- */
.diff-section {
  padding: 5rem 0;
  background: var(--bg-primary);
}

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

@media (min-width: 768px) {
  .diff-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .diff-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.diff-card {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.diff-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.diff-card:first-child {
  border-left: 3px solid var(--accent-cyan);
}
.diff-card:nth-child(4) {
  border-left: 3px solid var(--accent-amber);
}

.diff-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 0.75rem;
}

.diff-title {
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

.diff-tagline {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-amber);
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.diff-desc {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* --- 5. Hero Case Studies Section --- */
.case-studies-section {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

.case-study-list {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.case-study-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

@media (min-width: 960px) {
  .case-study-card {
    padding: 2.5rem;
  }
}

.case-study-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow-cyan);
}

.case-study-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.case-category {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

.case-title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  margin-bottom: 0.5rem;
}

.case-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 960px) {
  .case-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

.case-details-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.case-block-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.case-block-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* SVG Architecture Flow Visualizer */
.arch-diagram-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: relative;
}

.arch-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.arch-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

.arch-svg-container {
  width: 100%;
  overflow-x: auto;
  display: flex;
  justify-content: center;
}

.arch-svg {
  width: 100%;
  max-width: 480px;
  height: auto;
}

/* Labeled Placeholder Frame */
.media-placeholder-frame {
  margin-top: 1rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.25rem;
  background: rgba(15, 23, 42, 0.4);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.placeholder-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-amber);
  background: rgba(var(--accent-amber-rgb), 0.1);
  border: 1px solid rgba(var(--accent-amber-rgb), 0.3);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.placeholder-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-bright);
}

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

/* Case Study Footer Bar */
.case-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.case-tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.case-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Confidentiality disclaimer note */
.confidential-pill {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  color: var(--accent-amber);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* --- 6. More Work (Compact Grid) --- */
.more-work-section {
  padding: 5rem 0;
  background: var(--bg-primary);
}

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

@media (min-width: 640px) {
  .more-work-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .more-work-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.more-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.more-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.more-card-top {
  margin-bottom: 1.25rem;
}

.more-category {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.more-title {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.more-highlight {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-amber);
  margin-bottom: 0.75rem;
}

.more-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1rem;
}

.more-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.more-status-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- 7. Software x Hardware Duality Section --- */
.duality-section {
  padding: 6rem 0;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  position: relative;
  overflow: hidden;
}

.duality-quote-box {
  background: var(--bg-card);
  border-left: 4px solid var(--accent-amber);
  border-top: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem 2rem;
  margin-bottom: 3.5rem;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-primary);
  font-style: italic;
}

.duality-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 3.5rem;
}

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

.duality-col {
  padding: 2.25rem;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  position: relative;
  transition: all var(--transition-normal);
}

.duality-col.bits {
  border-top: 4px solid var(--accent-cyan);
}
.duality-col.bits:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.duality-col.atoms {
  border-top: 4px solid var(--accent-amber);
}
.duality-col.atoms:hover {
  border-color: var(--accent-amber);
  box-shadow: var(--shadow-glow-amber);
}

.duality-col-header {
  margin-bottom: 1.5rem;
}

.duality-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.duality-col.bits .duality-badge { color: var(--accent-cyan); }
.duality-col.atoms .duality-badge { color: var(--accent-amber); }

.duality-focus {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.duality-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.duality-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.duality-bullet {
  margin-top: 0.35rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.duality-col.bits .duality-bullet { background: var(--accent-cyan); }
.duality-col.atoms .duality-bullet { background: var(--accent-amber); }

/* Convergence Bridge Comparison */
.bridge-container {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.bridge-title {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.bridge-table {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.bridge-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

@media (min-width: 768px) {
  .bridge-row {
    grid-template-columns: 180px 1fr 1fr;
    align-items: center;
  }
}

.bridge-concept {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-bright);
}

.bridge-hw, .bridge-sw {
  font-size: 0.88rem;
  line-height: 1.5;
}

.bridge-label-chip {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  display: inline-block;
  margin-bottom: 0.25rem;
  font-weight: 600;
}
.bridge-hw .bridge-label-chip { color: var(--accent-amber); }
.bridge-sw .bridge-label-chip { color: var(--accent-cyan); }

/* --- 8. Skills Matrix Section --- */
.skills-section {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 640px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
}

.skill-category-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.skill-cat-title {
  font-size: 1.05rem;
}

.skill-level-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: rgba(var(--accent-cyan-rgb), 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(var(--accent-cyan-rgb), 0.25);
}

.skill-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

/* Currently Learning Box */
.currently-learning-box {
  background: var(--bg-card);
  border: 1px dashed var(--accent-amber);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-top: 2rem;
}

.learning-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.learning-title {
  font-size: 1.15rem;
  color: var(--accent-amber);
}

.learning-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

/* --- 9. Experience Timeline Section --- */
.experience-section {
  padding: 5rem 0;
  background: var(--bg-primary);
}

.timeline {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background: var(--border-strong);
}

@media (min-width: 768px) {
  .timeline::before {
    left: 32px;
  }
}

.timeline-item {
  position: relative;
  padding-left: 54px;
  margin-bottom: 3.5rem;
}

@media (min-width: 768px) {
  .timeline-item {
    padding-left: 80px;
  }
}

.timeline-marker {
  position: absolute;
  top: 4px;
  left: 11px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan);
  z-index: 1;
}

@media (min-width: 768px) {
  .timeline-marker {
    left: 23px;
  }
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.timeline-period {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 0.4rem;
}

.timeline-role {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.timeline-summary {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.55;
}

.timeline-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.timeline-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.bullet-icon {
  color: var(--accent-cyan);
  font-weight: 700;
  margin-top: 0.1rem;
}

/* --- 10. Services (What I Can Build For You) --- */
.services-section {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

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

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
}

.service-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.service-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(var(--accent-cyan-rgb), 0.1);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(var(--accent-cyan-rgb), 0.2);
}

.service-title {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- 11. Education & Credentials Section --- */
.credentials-section {
  padding: 5rem 0;
  background: var(--bg-primary);
}

.credentials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 800px) {
  .credentials-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.credential-block {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.cred-title {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.cert-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.cert-item:last-child {
  border-bottom: none;
}

.cert-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-bright);
}

.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
  margin-bottom: 0.25rem;
}

.cert-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* --- 12. Contact Section --- */
.contact-section {
  padding: 6rem 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 840px;
  margin: 0 auto;
  text-align: center;
}

.contact-title {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 1rem;
}

.contact-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-social-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.social-link:hover {
  color: var(--accent-cyan);
}

/* --- 13. Site Footer --- */
.site-footer {
  padding: 3rem 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-marathi {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-amber);
  margin-bottom: 0.35rem;
  letter-spacing: 0.02em;
}

.footer-marathi-meaning {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.footer-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- 14. Accessible Modal System --- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 12, 20, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  max-width: 850px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
  overflow: hidden;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title-group h3 {
  font-size: 1.35rem;
  margin-bottom: 0.25rem;
}

.modal-close-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--text-bright);
  border-color: var(--accent-cyan);
}

.modal-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-primary);
  padding: 0 1.5rem;
}

.modal-tab-btn {
  padding: 0.85rem 1.25rem;
  background: transparent;
  border: none;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.modal-tab-btn:hover, .modal-tab-btn.active {
  color: var(--text-bright);
}

.modal-tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-cyan);
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  line-height: 1.65;
}

.modal-tab-content {
  display: none;
}
.modal-tab-content.active {
  display: block;
}

/* --- 15. Toast Notifications --- */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--bg-elevated);
  color: var(--text-bright);
  border: 1px solid var(--accent-cyan);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* --- 16. Mobile Viewport Refinements (360px - 480px) --- */
@media (max-width: 480px) {
  .nav-brand span:last-child {
    display: none;
  }
  .nav-actions .btn-sm {
    display: none;
  }
  .hero-ctas {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .hero-ctas .btn, .hero-ctas .email-copy-pill {
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
  }
  .email-copy-pill {
    font-size: 0.78rem;
    padding: 0.6rem 0.8rem;
    text-align: center;
    word-break: break-all;
  }
  .case-study-card {
    padding: 1.25rem;
  }
  .arch-diagram-card {
    padding: 1rem 0.5rem;
  }
  .contact-card {
    padding: 1.5rem 1rem;
  }
  .modal-dialog {
    max-height: 94vh;
    border-radius: var(--radius-md);
  }
  .modal-header {
    padding: 1rem 1.25rem;
  }
  .modal-body {
    padding: 1.25rem;
  }
  .modal-tabs {
    padding: 0 0.5rem;
  }
  .modal-tab-btn {
    padding: 0.65rem 0.75rem;
    font-size: 0.78rem;
  }
}