/* Design Tokens & Theme Variables */
:root {
  /* Premium Monochromatic Neutral Gray Light Theme */
  --bg-primary: #f4f4f5; /* Clean, neutral light gray */
  --logo-color: #1B365D; /* Navy blue logo color */
  --bg-surface: rgba(255, 255, 255, 0.85);
  --bg-surface-hover: rgba(255, 255, 255, 0.98);
  --header-bg: rgba(244, 244, 245, 0.8);
  --border-color: rgba(113, 113, 122, 0.12);
  --text-primary: #18181b; /* Neutral Zinc 900 */
  --text-secondary: #3f3f46; /* Neutral Zinc 700 */
  --text-muted: #71717a; /* Neutral Zinc 500 */
  
  --accent-color: #27272a; /* Neutral Zinc 800 for clean look */
  --accent-color-hover: #09090b; /* Neutral Zinc 950 hover */
  --accent-glow: rgba(39, 39, 42, 0.05);
  --success-color: #10b981;
  --card-shadow: 0 10px 25px -5px rgba(63, 63, 70, 0.05);
  --card-shadow-hover: 0 20px 35px -5px rgba(63, 63, 70, 0.1);
  
  /* Fonts */
  --font-body: 'Montserrat', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Bitter', Georgia, serif;
  --font-serif: 'Bitter', Georgia, serif;
  
  /* Grid Pattern Color */
  --grid-dot-color: rgba(113, 113, 122, 0.04); /* Faint gray dot */
  
  /* Layout Sizing & Spacing */
  --header-height: 80px;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  
  color-scheme: light;
}

.theme-dark {
  /* Premium Monochromatic Charcoal & Silver Theme */
  --bg-primary: #121214;        /* Deep charcoal background */
  --logo-color: #C0C0C0;        /* Silver logo color */
  --bg-surface: rgba(30, 30, 34, 0.75); /* Lighter gray/charcoal container surface */
  --bg-surface-hover: rgba(45, 45, 52, 0.85); /* Slightly lighter gray hover state */
  --header-bg: rgba(18, 18, 20, 0.85);   /* Dark charcoal header background */
  --border-color: rgba(255, 255, 255, 0.08); /* Crisp silver-white border lines */
  --text-primary: #f3f4f6;       /* Pure silver-white for titles */
  --text-secondary: #d1d5db;     /* Light gray for body text */
  --text-muted: #9ca3af;         /* Medium gray for labels and dates */
  
  --accent-color: #9ca3af;       /* Steel-silver theme color */
  --accent-color-hover: #f3f4f6; /* Bright silver highlight */
  --accent-glow: rgba(156, 163, 175, 0.06); /* Faint gray background tint */
  --success-color: #10b981;
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  --card-shadow-hover: 0 15px 35px -5px rgba(0, 0, 0, 0.8);
  
  --grid-dot-color: rgba(156, 163, 175, 0.05); /* Faint dark gray dot pattern */
  
  color-scheme: dark;
}

/* Element Reset Rules - No global '*' resets */
html {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  /* Technical Grid Background Pattern */
  background-image: radial-gradient(var(--grid-dot-color) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  margin: 0;
  min-block-size: 100dvh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  margin-block-start: 0;
  margin-block-end: 1rem;
}

h1 {
  font-size: clamp(2rem, 5cqi, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3.5cqi, 2.25rem);
  letter-spacing: -0.01em;
  border-bottom: 1px solid var(--border-color);
  padding-block-end: 0.5rem;
}

p {
  margin-block-start: 0;
  margin-block-end: 1.5rem;
  color: var(--text-secondary);
}

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

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

/* Focus Management */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 4px;
}



/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  inline-size: 100%;
  pointer-events: none;
}

.pill-wrapper {
  padding-block: 1rem;
  width: 100%;
  box-sizing: border-box;
  transition: var(--transition-smooth);
  pointer-events: none;
  container-type: inline-size;
  container-name: simulator;
}

.navbar-pill {
  max-width: 900px;
  width: 92%;
  margin: 0 auto;
  background-color: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  padding: 0.5rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
  position: relative;
  transition: var(--transition-smooth);
  box-sizing: border-box;
  pointer-events: auto;
}

.pill-burger {
  display: none;
}

.pill-menu-container {
  position: relative;
}

.pill-indicator {
  position: absolute;
  background-color: rgba(113, 113, 122, 0.12);
  border-radius: 30px;
  pointer-events: none;
  z-index: 0;
  top: 4px;
  left: 0;
  height: calc(100% - 8px);
  width: 0;
  opacity: 0;
  transform: translate3d(0, 0, 0);
  transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1), 
              width 0.35s cubic-bezier(0.25, 1, 0.5, 1), 
              opacity 0.25s ease;
}

.theme-dark .pill-indicator {
  background-color: rgba(255, 255, 255, 0.10);
}

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

.navbar-pill .nav-menu {
  display: flex;
  gap: 0.25rem;
  padding: 0;
  margin: 0;
  position: relative;
  z-index: 1;
}

.navbar-pill .nav-link {
  background: transparent !important;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  padding-block: 0.5rem;
  padding-inline: 1.25rem;
  border-radius: 30px;
  transition: color 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-pill .nav-link svg {
  display: none;
}

.navbar-pill .nav-link:hover,
.navbar-pill .nav-link.active {
  background: transparent !important;
  color: var(--text-primary) !important;
}


.navbar-pill .theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.navbar-pill .theme-toggle-btn:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

/* Scroll Shrink Effects */
.header.scrolled .pill-wrapper {
  padding-block: 0.5rem;
}

.header.scrolled .navbar-pill {
  max-width: 780px;
  padding: 0.35rem 1.25rem;
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.15);
  background-color: rgba(255, 255, 255, 0.95);
}

.theme-dark .header.scrolled .navbar-pill {
  background-color: rgba(30, 30, 34, 0.92);
  border-color: rgba(255, 255, 255, 0.12);
}

/* Responsive Mobile & Tablet View (Expanding Pill Drawer) */
@container simulator (max-width: 768px) {
  .navbar-pill {
    padding: 0.75rem 1.25rem;
    width: 94%;
    border-radius: 24px;
    flex-wrap: wrap;
    transition: var(--transition-smooth);
  }
  
  .logo-link {
    flex: 1;
  }
  
  .pill-burger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 20px;
    height: 14px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
    margin-left: 1rem;
  }
  
  .pill-burger span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    transform-origin: center;
  }
  
  .pill-burger.open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .pill-burger.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
  }
  .pill-burger.open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .pill-menu-container {
    width: 100%;
    order: 3;
  }

  .navbar-pill .nav-menu {
    flex-direction: column;
    width: 100%;
    gap: 0.25rem;
    margin-top: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                opacity 0.3s ease, 
                margin-top 0.4s ease;
    align-items: stretch;
  }
  
  .navbar-pill .nav-link {
    width: 100%;
    box-sizing: border-box;
    padding: 0.65rem 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
  }

  .navbar-pill .nav-link svg {
    display: inline-block;
    width: 16px;
    height: 16px;
  }
  
  .navbar-pill .nav-link.active {
    background-color: rgba(113, 113, 122, 0.08) !important;
  }
  
  .theme-dark .navbar-pill .nav-link.active {
    background-color: rgba(255, 255, 255, 0.08) !important;
  }
  
  .pill-indicator {
    display: none;
  }
  
  .pill-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    width: 100%;
    order: 4;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 0;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                opacity 0.3s ease, 
                margin-top 0.4s ease;
  }

  .mobile-theme-btn {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    border-radius: 50%;
    background-color: rgba(113, 113, 122, 0.08);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
  }

  .theme-dark .mobile-theme-btn {
    background-color: rgba(255, 255, 255, 0.08);
  }

  .navbar-pill.expanded {
    border-radius: var(--border-radius-md);
    box-shadow: 0 15px 40px -10px rgba(0, 0, 0, 0.15);
  }

  .navbar-pill.expanded .nav-menu {
    max-height: 300px;
    opacity: 1;
    margin-top: 1rem;
  }
  
  .navbar-pill.expanded .pill-actions {
    max-height: 50px;
    opacity: 1;
    margin-top: 0.75rem;
  }
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
}

.logo-avatar-container {
  inline-size: 40px;
  block-size: 40px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--border-color);
}

.logo-avatar {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
}
.logo-svg {
  height: 28px;
  width: auto;
  display: block;
}

.logo-svg path {
  fill: var(--logo-color);
  transition: fill var(--transition-smooth);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-menu {
  display: flex;
  gap: 0.5rem;
}

.nav-link {
  padding-block: 0.5rem;
  padding-inline: 1rem;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link svg {
  inline-size: 16px;
  block-size: 16px;
  fill: currentColor;
}

.nav-link:hover {
  background-color: var(--accent-glow);
  color: var(--accent-color);
}

.nav-link.active {
  background-color: var(--accent-color);
  color: var(--bg-primary);
}

/* Header Download Button */
.header-download-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding-block: 0.5rem;
  padding-inline: 0.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.header-download-btn:hover {
  background-color: var(--accent-color);
  color: var(--bg-primary);
  border-color: var(--accent-color);
}

.header-download-btn svg {
  inline-size: 18px;
  block-size: 18px;
  fill: currentColor;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding-block: 0.5rem;
  padding-inline: 0.5rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.theme-toggle-btn:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.theme-toggle-btn svg {
  inline-size: 20px;
  block-size: 20px;
  fill: currentColor;
}

.theme-toggle-btn .sun-icon {
  display: none;
}

.theme-dark .theme-toggle-btn .moon-icon {
  display: none;
}

.theme-dark .theme-toggle-btn .sun-icon {
  display: block;
}

/* Hero Gallery Collage */
.hero-gallery {
  position: relative;
  inline-size: 100%;
  max-inline-size: 400px;
  aspect-ratio: 3 / 4;
  margin-block-start: 0;
}

.gallery-frame {
  position: absolute;
  top: 0;
  left: 0;
  inline-size: 100%;
  block-size: 100%;
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
}

.main-frame {
  inline-size: 100%;
  block-size: 100%;
  border-radius: var(--border-radius-md);
  z-index: 1;
}

.gallery-img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  object-position: 20% center;
  transition: var(--transition-smooth);
}

/* Theme-dependent image styling */
.theme-dark .hero-profile-img {
  filter: grayscale(100%) contrast(1.05) brightness(0.95);
}

/* Hover Parallax / Scale effects */
.hero-gallery:hover .main-frame {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.hero-gallery:hover .gallery-img {
  transform: scale(1.02);
}

/* Main Layout */
.main-content {
  inline-size: 100%;
  flex: 1;
  position: relative;
  overflow-x: hidden;
}

.section-container {
  max-inline-size: 1200px;
  margin-inline: auto;
  padding-inline: 2rem;
  box-sizing: border-box;
}

/* Route View Scroll Sections */
.route-view {
  display: block;
  inline-size: 100%;
  box-sizing: border-box;
  padding-block: 6rem;
  scroll-margin-top: var(--header-height);
}

/* Alternating backgrounds for visual distinction */
#view-education,
#view-resume {
  background-color: var(--bg-surface);
  border-block-start: 1px solid var(--border-color);
  border-block-end: 1px solid var(--border-color);
}

/* Home / Hero Section */
.hero-wrapper {
  display: grid;
  grid-template-columns: 400px 1fr;
  grid-template-rows: auto auto;
  gap: 2rem 4rem;
  align-items: start;
  margin-block-end: 4rem;
}

.hero-content {
  grid-column: 2;
  grid-row: 1 / span 2;
  animation: slideUp 0.6s ease-out;
}

.hero-content h1 {
  font-size: clamp(1.4rem, 3.2vw, 2.4rem);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-block-end: 2rem;
}

.hero-body {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.hero-body p {
  margin-block-end: 1.5rem;
}

.accent-quote {
  grid-column: 1;
  grid-row: 2;
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.75rem;
  box-shadow: var(--card-shadow);
  margin-block: 0;
  font-size: 1.2rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.6;
}

.accent-quote svg {
  inline-size: 24px;
  block-size: 24px;
  fill: var(--accent-color);
  opacity: 0.5;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.accent-quote p {
  margin: 0;
}

.hero-gallery {
  grid-column: 1;
  grid-row: 1;
  animation: zoomIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Grid Containers & Cards */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
  margin-block-end: 3rem;
}

.card-wrapper {
  container-type: inline-size;
}

.glass-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding-block: 2.25rem;
  padding-inline: 2.25rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
  block-size: calc(100% - 4.5rem);
}

.glass-card:hover {
  transform: translateY(-4px);
  background-color: var(--bg-surface-hover);
  box-shadow: var(--card-shadow-hover), 0 0 25px var(--accent-glow);
  border-color: var(--accent-color);
}

/* Education Design */
.education-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-block-end: 1.25rem;
}

.degree-badge {
  background-color: var(--accent-glow);
  color: var(--accent-color);
  padding-block: 0.25rem;
  padding-inline: 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.gpa-badge {
  color: var(--success-color);
  font-weight: 700;
  font-size: 0.875rem;
}

.institution-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-block-end: 0.5rem;
}

.institution-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-block-end: 1.5rem;
}

.school-link {
  font-weight: 600;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Certifications Layout */
.certifications-section {
  margin-block-start: 4.5rem;
}

.cert-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding-block: 1.25rem;
  padding-inline: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
}

.cert-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-color);
  box-shadow: var(--card-shadow-hover), 0 0 15px var(--accent-glow);
}

.cert-icon {
  background: var(--accent-glow);
  color: var(--accent-color);
  padding-block: 0.5rem;
  padding-inline: 0.5rem;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-block-end: 0.25rem;
}

.cert-info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.presentation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2.5rem;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.45rem 0.9rem;
  border-radius: var(--border-radius-sm);
  background: var(--bg-surface);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-fast);
}

.back-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: var(--bg-surface-hover);
}

.presentation-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
}

.presentation-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover), 0 0 25px var(--accent-glow);
  border-color: var(--accent-color);
}

.iframe-container {
  position: relative;
  inline-size: 100%;
  padding-block-start: 56.25%; /* 16:9 aspect ratio */
  background: #000;
}

.iframe-container iframe,
.iframe-container img {
  position: absolute;
  top: 0;
  left: 0;
  inline-size: 100%;
  block-size: 100%;
  border: none;
  object-fit: cover;
}

/* Thumbnail Overlay to intercept pointer events on the iframe */
.pres-thumbnail-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: transparent;
  cursor: pointer;
}

/* PDF View Link inside cards */
.pres-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-color);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.pres-link:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.pres-footer {
  border-top: 1px solid var(--border-color);
  padding-block-start: 1rem;
  margin-block-start: 1.25rem;
  display: flex;
  justify-content: flex-end;
}

/* Full Screen PDF Modal */
#pdfModal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-content-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 1100px;
  height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

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

.modal-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-primary);
}

.modal-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.modal-iframe-wrapper {
  flex-grow: 1;
  background: #0f172a;
  position: relative;
}


.presentation-info {
  padding-block: 1.5rem;
  padding-inline: 1.75rem;
}

.pres-badge {
  background-color: var(--accent-glow);
  color: var(--accent-color);
  padding-block: 0.2rem;
  padding-inline: 0.6rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-block;
  margin-block-end: 0.75rem;
}

.pres-title {
  font-size: 1.35rem;
  margin-block-end: 0.5rem;
}

.pres-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Resume Design */

/* Resume CTA Block */
.resume-cta {
  max-inline-size: 960px;
  margin-inline: auto;
  margin-block-start: 1rem;
}

.resume-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding-block: 2rem;
  padding-inline: 2.5rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
}

.resume-cta-inner:hover {
  border-color: var(--accent-color);
  box-shadow: var(--card-shadow-hover);
}

.resume-cta-text h3 {
  font-size: 1.25rem;
  margin-block-end: 0.25rem;
}

.resume-cta-text p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

.btn-primary {
  background-color: var(--accent-color);
  color: var(--bg-primary);
  font-weight: 600;
  padding-block: 0.75rem;
  padding-inline: 1.5rem;
  border-radius: var(--border-radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  box-shadow: 0 4px 14px 0 var(--accent-glow);
}

.btn-primary:hover {
  background-color: var(--accent-color-hover);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

.btn-primary svg {
  inline-size: 18px;
  block-size: 18px;
  fill: currentColor;
}

.timeline {
  position: relative;
  max-inline-size: 960px;
  margin-inline: auto;
  margin-block-end: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  inline-size: 2px;
  background-color: var(--border-color);
}

.timeline-item {
  position: relative;
  inline-size: 50%;
  margin-block-end: 3.5rem;
  box-sizing: border-box;
}

/* Odd items (left side) */
.timeline-item:nth-child(odd) {
  left: 0;
  padding-inline-end: 3.5rem;
  padding-inline-start: 0;
  text-align: right;
}

/* Even items (right side) */
.timeline-item:nth-child(even) {
  left: 50%;
  padding-inline-start: 3.5rem;
  padding-inline-end: 0;
  text-align: left;
}

/* Timeline Scroll Animations (Apple Style Focus) */
@keyframes appleScrollEffect {
  0% {
    opacity: 0.15;
    transform: translateY(40px) scale(0.96);
    filter: blur(3px);
  }
  20% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
  80% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
  100% {
    opacity: 0.15;
    transform: translateY(-40px) scale(0.96);
    filter: blur(3px);
  }
}

@supports ((animation-timeline: view()) and (animation-range: entry)) {
  .timeline-item {
    animation: appleScrollEffect linear both;
    animation-timeline: view();
    animation-range: cover 5% cover 95%;
  }
}

@supports not ((animation-timeline: view()) and (animation-range: entry)) {
  .timeline-item {
    opacity: 0.3;
    transform: scale(0.96);
    filter: blur(3px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  }
  
  .timeline-item.in-view {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
}

.timeline-dot {
  position: absolute;
  top: 6px;
  inline-size: 18px;
  block-size: 18px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 3px solid var(--accent-color);
  z-index: 5;
  box-shadow: 0 0 0 4px var(--accent-glow);
  transition: background-color 0.3s ease;
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -9px;
  left: auto;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -9px;
  right: auto;
}

.timeline-meta {
  display: flex;
  flex-direction: column;
  margin-block-end: 1rem;
}

.timeline-date {
  font-size: 0.875rem;
  color: var(--accent-color);
  font-weight: 600;
  margin-block-end: 0.25rem;
}

.timeline-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.timeline-company {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.timeline-company a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.timeline-details {
  list-style: none;
  padding-inline-start: 0;
  margin: 0;
}

.timeline-details li {
  position: relative;
  padding-inline-start: 1.25rem;
  margin-block-end: 0.75rem;
  font-size: 0.975rem;
  color: var(--text-secondary);
}

.timeline-details li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-color);
}

/* Directional arrows for left-aligned items */
.timeline-item:nth-child(odd) .timeline-details li {
  padding-inline-start: 0;
  padding-inline-end: 1.25rem;
}

.timeline-item:nth-child(odd) .timeline-details li::before {
  display: none;
}

.timeline-item:nth-child(odd) .timeline-details li::after {
  content: '←';
  position: absolute;
  right: 0;
  color: var(--accent-color);
}

/* Consulting Section — no extra background, follows transparent alternation */

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-block-end: 4rem;
}

.service-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding-block: 2rem;
  padding-inline: 2rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
}

.service-item:hover {
  transform: translateY(-4px);
  border-color: var(--accent-color);
  box-shadow: var(--card-shadow-hover), 0 0 25px var(--accent-glow);
}

.service-icon {
  background: var(--accent-glow);
  color: var(--accent-color);
  inline-size: 48px;
  block-size: 48px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-block-end: 1.25rem;
}

.service-icon svg {
  inline-size: 24px;
  block-size: 24px;
  fill: currentColor;
}

.service-item h3 {
  font-size: 1.15rem;
  margin-block-end: 0.5rem;
}

.service-item p {
  font-size: 0.925rem;
  margin: 0;
  color: var(--text-secondary);
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-block-end: 4rem;
  align-items: start;
}

.pricing-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding-block: 2.25rem;
  padding-inline: 2rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

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

.pricing-card--featured {
  border-color: var(--accent-color);
  box-shadow: var(--card-shadow-hover), 0 0 30px var(--accent-glow);
  padding-block-start: 3rem;
}

.pricing-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--accent-color);
  color: var(--bg-primary);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-block: 0.3rem;
  padding-inline: 1rem;
  border-radius: 9999px;
  white-space: nowrap;
}

.pricing-header {
  margin-block-end: 1.75rem;
}

.pricing-tier {
  font-size: 1.25rem;
  font-weight: 700;
  margin-block-end: 0.5rem;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.price-unit {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0;
  margin-block-end: 2rem;
  flex: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding-block: 0.5rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  border-block-end: 1px solid var(--border-color);
}

.pricing-features li:last-child {
  border-block-end: none;
}

.pricing-features li svg {
  inline-size: 18px;
  block-size: 18px;
  fill: var(--accent-color);
  flex-shrink: 0;
  margin-block-start: 2px;
}

.pricing-cta {
  display: block;
  text-align: center;
  padding-block: 0.85rem;
  padding-inline: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.pricing-cta:hover {
  background-color: var(--accent-glow);
  border-color: var(--accent-color);
  color: var(--text-primary);
}

.pricing-cta--featured {
  background-color: var(--accent-color);
  color: var(--bg-primary);
  border-color: var(--accent-color);
}

.pricing-cta--featured:hover {
  background-color: var(--accent-color-hover);
  border-color: var(--accent-color-hover);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

/* Contact Form */
.consulting-contact {
  max-inline-size: 720px;
  margin-inline: auto;
  scroll-margin-top: calc(var(--header-height) + 2rem);
}

.consulting-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding-block: 0.75rem;
  padding-inline: 1rem;
  transition: var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%2364748b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-inline-end: 2.5rem;
}

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

.btn-submit {
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: 1rem;
  cursor: pointer;
  border: none;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}


/* Footer Section */
.footer {
  border-block-start: 1px solid var(--border-color);
  padding-block: 2.5rem;
  background-color: var(--bg-surface);
  inline-size: 100%;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.footer-container {
  max-inline-size: 1200px;
  margin-inline: auto;
  padding-inline: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.social-links {
  display: flex;
  gap: 1.25rem;
}

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

.social-icon:hover {
  color: var(--text-primary);
  transform: translateY(-2px);
}

.social-icon svg {
  inline-size: 20px;
  block-size: 20px;
  fill: currentColor;
}

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

/* Desktop-only utility */
.desktop-only {
  display: flex;
}

/* Mobile Toggle Hamburger */
/* Unified Glassmorphic Card Styling */
.glass-card, 
.cert-card, 
.presentation-card, 
.service-item, 
.pricing-card, 
.modal-content-container {
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
}

/* Keyframe Animations */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  .hero-wrapper {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
    text-align: center;
  }
  
  .hero-gallery {
    grid-column: auto;
    grid-row: auto;
    margin-inline: auto;
  }

  .hero-content {
    grid-column: auto;
    grid-row: auto;
  }

  .accent-quote {
    grid-column: auto;
    grid-row: auto;
    margin-inline: auto;
    max-inline-size: 400px;
    text-align: left;
  }
  
  .presentation-grid {
    grid-template-columns: 1fr;
  }

  .resume-cta-inner {
    flex-direction: column;
    text-align: center;
    padding-block: 1.5rem;
    padding-inline: 1.5rem;
  }
}

@media (max-width: 768px) {
  .desktop-only {
    display: none !important;
  }
  
  .mobile-nav-toggle {
    display: flex !important;
  }
  
  .drawer {
    display: flex;
  }
  
  .header-container {
    padding-inline: 1.5rem;
  }
  .section-container {
    padding-inline: 1.5rem;
  }
  .route-view {
    padding-block-start: 4.5rem;
    padding-block-end: 4.5rem;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  /* Responsive Timeline (Alternating to Left-Aligned) */
  .timeline {
    max-inline-size: 100%;
  }

  .timeline::before {
    left: 12px;
    transform: none;
  }

  .timeline-item {
    inline-size: 100%;
    left: 0 !important;
    padding-inline-start: 3rem !important;
    padding-inline-end: 0 !important;
    text-align: left !important;
  }

  .timeline-dot {
    left: 4px !important;
    right: auto !important;
  }

  .timeline-item:nth-child(odd) .timeline-details li {
    padding-inline-start: 1.25rem !important;
    padding-inline-end: 0 !important;
  }

  .timeline-item:nth-child(odd) .timeline-details li::before {
    display: block !important;
  }

  .timeline-item:nth-child(odd) .timeline-details li::after {
    display: none !important;
  }
}

@media (max-width: 480px) {
  .header-container {
    padding-inline: 1rem;
  }
  .logo-img {
    height: 24px;
  }
  
  .section-container {
    padding-inline: 1rem;
  }
  

  
  .timeline-title {
    font-size: 1.2rem;
  }
  
  .timeline-company {
    font-size: 0.95rem;
  }
}

/* Premium Floating Theme Selector (Desktop) */
@media (min-width: 769px) {
  .floating-theme-btn {
    position: fixed !important;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background-color: var(--bg-surface) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--card-shadow);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), 
                box-shadow 0.3s ease, 
                background-color 0.3s ease, 
                border-color 0.3s ease;
  }

  .floating-theme-btn:hover {
    transform: scale(1.1);
    background-color: var(--bg-surface-hover) !important;
    border-color: var(--accent-color) !important;
    box-shadow: var(--card-shadow-hover);
  }

  .floating-theme-btn svg {
    transition: transform 0.3s ease;
  }

  .floating-theme-btn:hover svg {
    transform: rotate(20deg);
  }

  .mobile-theme-btn {
    display: none !important;
  }
}

/* Hide Floating Theme Selector (Mobile) */
@media (max-width: 768px) {
  .floating-theme-btn {
    display: none !important;
  }
}

/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  box-shadow: var(--card-shadow);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.9);
  transition: opacity 0.4s ease, 
              visibility 0.4s ease, 
              transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), 
              background-color 0.3s ease, 
              border-color 0.3s ease, 
              color 0.3s ease;
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.back-to-top-btn:hover {
  transform: translateY(-4px) scale(1.05);
  background-color: var(--bg-surface-hover);
  border-color: var(--accent-color);
  color: var(--text-primary);
  box-shadow: var(--card-shadow-hover);
}

.back-to-top-btn svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  transition: transform 0.3s ease;
}

.back-to-top-btn:hover svg {
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .back-to-top-btn {
    bottom: 1.5rem;
    left: 1.5rem;
    width: 42px;
    height: 42px;
  }
  .back-to-top-btn svg {
    width: 18px;
    height: 18px;
  }
}

/* Scroll Sentinel for performant scroll-aware triggers */
.scroll-sentinel {
  position: absolute;
  top: 0;
  left: 0;
  height: 300px;
  width: 1px;
  pointer-events: none;
  visibility: hidden;
}