/* ==========================================================================
   RANA ANAS - EXECUTIVE PORTFOLIO DESIGN SYSTEM
   Theme: Timeless Editorial Light Mode
   IPFS & Decentralized Web Compliant
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette - Executive Trust Blue & Slate */
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-muted: #e2e8f0;
  
  --text-main: #0f172a;
  --text-heading: #1e293b;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  
  --accent-blue: #2563eb;
  --accent-navy: #1e3a8a;
  
  --success-bg: #ecfdf5;
  --success-text: #047857;
  --success-border: #a7f3d0;
  --success-dot: #10b981;
  
  --border-light: #e2e8f0;
  --border-subtle: #f1f5f9;
  --border-focus: #0284c7;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 4px -1px rgba(15, 23, 42, 0.06), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 32px -6px rgba(15, 23, 42, 0.1), 0 8px 16px -4px rgba(15, 23, 42, 0.05);
  
  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, monospace;
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* --------------------------------------------------------------------------
   3. Container & Section Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 5.5rem;
  padding-bottom: 5.5rem;
  position: relative;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  margin-bottom: 3.5rem;
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-700);
  background-color: var(--primary-50);
  border: 1px solid var(--primary-100);
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   4. Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.98);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.brand-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-600);
  background: linear-gradient(180deg, #e0f2fe 0%, #f8fafc 100%);
}

.brand-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary-700);
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

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

.nav-link {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding: 0.35rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-600);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--primary-600);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary-600);
  color: #ffffff !important;
  box-shadow: 0 2px 6px rgba(2, 132, 199, 0.25);
}

.btn-primary:hover {
  background-color: var(--primary-700);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
  transform: translateY(-1px);
  color: #ffffff !important;
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-heading);
  border-color: var(--border-light);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-focus);
  color: var(--primary-700);
  transform: translateY(-1px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-muted);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--bg-subtle);
  color: var(--primary-600);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.825rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.85rem 1.65rem;
  font-size: 1rem;
  border-radius: var(--radius-md);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  padding: 0.5rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-light);
  padding: 1.5rem;
  box-shadow: var(--shadow-xl);
  display: none;
  flex-direction: column;
  gap: 1.25rem;
  z-index: 999;
}

.mobile-nav-drawer.open {
  display: flex;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav-link {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
}

/* --------------------------------------------------------------------------
   5. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  padding-top: 4.5rem;
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -50px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: var(--radius-full);
  color: var(--success-text);
  font-size: 0.85rem;
  font-weight: 700;
  width: fit-content;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success-dot);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.15); }
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.04em;
  line-height: 1.15;
}

.hero-title .highlight {
  color: var(--primary-600);
  background: linear-gradient(135deg, var(--primary-700), var(--primary-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-headline {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.45;
}

.hero-desc {
  font-size: 1.025rem;
  color: var(--text-body);
  line-height: 1.7;
}

.hero-philosophy {
  background: #ffffff;
  border-left: 3px solid var(--primary-600);
  border-top: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--text-heading);
  box-shadow: var(--shadow-xs);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 500;
}

.meta-item svg {
  color: var(--primary-600);
}

/* Hero Visual & Profile Frame */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.profile-card-wrapper {
  position: relative;
  width: 100%;
  max-width: 360px;
}

.profile-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 0.85rem;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.profile-image-container {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background: linear-gradient(180deg, #e0f2fe 0%, #f8fafc 100%);
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition-smooth);
}

.profile-card:hover .profile-image {
  transform: scale(1.03);
}

.profile-floating-badge {
  position: absolute;
  bottom: 1.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: 0.5rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--text-main);
}

.profile-floating-badge svg {
  color: var(--primary-600);
}

/* --------------------------------------------------------------------------
   6. Metric Highlights Strip
   -------------------------------------------------------------------------- */
.metrics-section {
  padding: 1.5rem 0;
  margin-top: -1.5rem;
  position: relative;
  z-index: 2;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-100);
}

.metric-number-row {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.metric-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary-700);
  line-height: 1;
  letter-spacing: -0.03em;
}

.metric-label {
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--text-heading);
  line-height: 1.3;
}

.metric-caption {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   7. Featured Projects Section
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-500);
}

.project-card-hero {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
}

.project-card-hero .project-image-wrap {
  height: 100%;
  min-height: 320px;
}

.project-image-wrap {
  width: 100%;
  height: 230px;
  background: #f1f5f9;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition-smooth);
}

.project-image-wrap:hover .project-img {
  transform: scale(1.04);
}

.project-image-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.project-image-wrap:hover .project-image-overlay {
  opacity: 1;
}

.image-zoom-btn {
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-main);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: var(--shadow-md);
}

.project-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 1.15rem;
}

.project-header-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
}

.project-category {
  font-weight: 700;
  color: var(--primary-700);
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.project-date {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.project-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}

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

.project-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-body);
}

.project-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.project-feature-item svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
  color: var(--primary-600);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.project-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-heading);
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

.project-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   8. Career Experience Timeline
   -------------------------------------------------------------------------- */
.timeline-container {
  max-width: 960px;
  margin: 0 auto;
  position: relative;
}

.timeline-container::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 28px;
  width: 2px;
  background: var(--border-light);
}

.timeline-item {
  position: relative;
  padding-left: 72px;
  margin-bottom: 2.25rem;
}

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

.timeline-node {
  position: absolute;
  top: 0.25rem;
  left: 18px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 3px solid var(--primary-600);
  box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.15);
  z-index: 1;
  transition: transform var(--transition-fast);
}

.timeline-item:hover .timeline-node {
  transform: scale(1.25);
  border-color: var(--accent-blue);
}

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

.timeline-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-100);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.timeline-role-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.timeline-role {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
}

.timeline-company {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-700);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.timeline-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.timeline-duration-badge {
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-heading);
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.timeline-domain-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-navy);
  background: #eff6ff;
  border: 1px solid #dbeafe;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.timeline-location {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.timeline-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: var(--text-body);
}

.timeline-bullet {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  line-height: 1.55;
}

.timeline-bullet svg {
  flex-shrink: 0;
  margin-top: 0.3rem;
  color: var(--primary-600);
}

/* --------------------------------------------------------------------------
   9. Skills & Domain Matrix
   -------------------------------------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.skill-category-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: all var(--transition-normal);
}

.skill-category-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-100);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.skill-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  color: var(--primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
}

.skill-category-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
}

.skill-category-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.skill-pill {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-heading);
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.skill-pill:hover {
  background: var(--primary-50);
  border-color: var(--primary-500);
  color: var(--primary-800);
  transform: translateY(-1px);
}

.skill-pill.featured {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1e40af;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   10. Education & Honors
   -------------------------------------------------------------------------- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.edu-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: all var(--transition-normal);
}

.edu-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-100);
  transform: translateY(-2px);
}

.edu-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: #fef3c7;
  border: 1px solid #fde68a;
  color: #b45309;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.edu-icon-wrap.degree {
  background: var(--primary-50);
  border-color: var(--primary-100);
  color: var(--primary-700);
}

.edu-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.edu-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
}

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

.edu-meta {
  font-size: 0.825rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.edu-desc {
  font-size: 0.9rem;
  color: var(--text-body);
  margin-top: 0.35rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   11. Contact & IPFS Ready Section
   -------------------------------------------------------------------------- */
.contact-card {
  background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
  border: 1px solid #bae6fd;
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.contact-card::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.contact-headline {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.contact-subtitle {
  font-size: 1.1rem;
  color: var(--text-body);
  max-width: 620px;
  margin: 0 auto 2.25rem;
}

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

.email-copy-box {
  display: inline-flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.4rem 0.5rem 0.4rem 1rem;
  box-shadow: var(--shadow-sm);
  gap: 0.75rem;
}

.email-text {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.ipfs-badge-strip {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.ipfs-badge-strip svg {
  color: #0284c7;
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  padding: 2.5rem 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-social-link {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-social-link:hover {
  color: var(--primary-600);
}

/* --------------------------------------------------------------------------
   13. Toast Notification & Modal Preview
   -------------------------------------------------------------------------- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--text-main);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-xl);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-smooth);
  z-index: 9999;
}

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

/* Image Modal */
.image-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.image-modal.open {
  display: flex;
}

.modal-content-wrap {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 0.5rem;
  box-shadow: var(--shadow-xl);
}

.modal-img {
  max-width: 85vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.modal-close-btn {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 36px;
  height: 36px;
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  font-size: 1.1rem;
  font-weight: bold;
}

/* --------------------------------------------------------------------------
   14. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }
  
  .hero-content {
    align-items: center;
  }
  
  .hero-philosophy {
    text-align: left;
  }
  
  .hero-meta {
    justify-content: center;
  }
  
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .project-card-hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-title {
    font-size: 2.25rem;
  }
  
  .section-title {
    font-size: 1.85rem;
  }
  
  .projects-grid,
  .skills-grid,
  .edu-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-container::before {
    left: 16px;
  }
  
  .timeline-item {
    padding-left: 48px;
  }
  
  .timeline-node {
    left: 6px;
  }
  
  .timeline-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-ctas .btn {
    width: 100%;
  }
  
  .email-copy-box {
    flex-direction: column;
    width: 100%;
  }
}