/* Layers declaration */
@layer reset, base, theme, components, utilities;

@layer reset {
  /* Box sizing and default resets */
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

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

  body {
    min-height: 100vh;
    text-rendering: optimizeSpeed;
    line-height: 1.5;
    overflow-x: hidden;
  }

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

  input, button, textarea, select {
    font: inherit;
  }

  ul, ol {
    list-style: none;
  }

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

@layer base {
  /* Typography and Root Settings */
  :root {
    color-scheme: dark;
  }

  :root.light-mode {
    color-scheme: light;
    --bg-primary: #f5f5f7;
    --bg-secondary: #ffffff;
    --bg-tertiary: #eaeaea;
    
    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-subtle: #86868b;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --border-glow: rgba(0, 113, 227, 0.15);
    --glass-bg: rgba(255, 255, 255, 0.7);
  }

  /* Component overrides under light mode namespace */
  .light-mode .nav-item.active {
    background-color: rgba(0, 113, 227, 0.08);
    color: var(--accent-blue);
    border-color: rgba(0, 113, 227, 0.15);
  }

  .light-mode .panel-badge {
    background-color: rgba(0, 113, 227, 0.1);
    color: var(--accent-blue);
    border-color: rgba(0, 113, 227, 0.15);
  }

  .light-mode .topology-canvas {
    background-color: #ffffff;
  }

  .light-mode .skill-tag.skill-highlight {
    background-color: rgba(0, 113, 227, 0.08);
    color: var(--accent-blue);
    border-color: rgba(0, 113, 227, 0.15);
  }

  :root {
    
    /* Font families */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', Courier, monospace;

    /* Theme colors using dynamic light-dark() values */
    /* HSL dynamic model (Dark mode base) */
    --bg-primary: light-dark(#f5f5f7, #0a0a0c);
    --bg-secondary: light-dark(#ffffff, #121217);
    --bg-tertiary: light-dark(#eaeaea, #1a1a24);
    
    --text-primary: light-dark(#1d1d1f, #f5f5f7);
    --text-secondary: light-dark(#6e6e73, #86868b);
    --text-subtle: light-dark(#86868b, #606066);

    /* Tier 1 Accent Colors */
    --color-emerald-base: 16, 185, 129; /* #10b981 SRE Nominal Green */
    --color-blue-base: 0, 113, 227;    /* #0071e3 Apple blue */
    --color-amber-base: 245, 158, 11;  /* #f59e0b Warning Amber */
    --color-red-base: 255, 69, 58;     /* #ff453a Critical Red */
    
    /* Tier 2 Semantic colors */
    --accent-green: rgb(var(--color-emerald-base));
    --accent-blue: rgb(var(--color-blue-base));
    --accent-amber: rgb(var(--color-amber-base));
    --accent-red: rgb(var(--color-red-base));

    /* Dynamic Border colors */
    --border-color: light-dark(rgba(0, 0, 0, 0.08), rgba(255, 255, 255, 0.08));
    --border-glow: light-dark(rgba(0, 113, 227, 0.15), rgba(16, 185, 129, 0.15));
    --glass-bg: light-dark(rgba(255, 255, 255, 0.7), rgba(18, 18, 23, 0.7));
    
    /* Shadow tokens */
    --shadow-soft: 0 4px 30px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px rgba(var(--color-emerald-base), 0.15);
  }

  body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
  }

  /* Responsive fluid typography */
  h1 {
    font-size: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
  }

  h2 {
    font-size: clamp(1.4rem, 1.2rem + 1vw, 2.2rem);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.01em;
  }

  h3 {
    font-size: clamp(1.1rem, 1rem + 0.5vw, 1.5rem);
    font-weight: 600;
    line-height: 1.3;
  }

  p {
    font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);
    color: var(--text-secondary);
    text-wrap: pretty;
  }

  /* Better interactive outline focusing */
  :focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 4px;
  }
}

@layer theme {
  /* Ambient glowing meshes background (Compositor-friendly opacity transforms) */
  .glow-bg-primary {
    position: fixed;
    top: -10%;
    left: -10%;
    width: 50%;
    height: 50%;
    background: radial-gradient(circle, rgba(var(--color-blue-base), 0.08) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    filter: blur(80px);
  }

  .glow-bg-secondary {
    position: fixed;
    bottom: -10%;
    right: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(var(--color-emerald-base), 0.06) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    filter: blur(100px);
  }
}

@layer components {
  /* DASHBOARD WRAPPER */
  .dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-height: 100vh;
  }

  @media (max-width: 768px) {
    .dashboard-container {
      padding: 1rem;
      gap: 1.5rem;
    }
  }

  /* 1. HEADER PANEL & METRICS */
  .header-panel {
    background-color: var(--glass-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
  }

  @media (max-width: 1024px) {
    .header-panel {
      flex-direction: column;
      align-items: flex-start;
    }
  }

  .profile-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }

  @media (max-width: 480px) {
    .profile-meta {
      flex-direction: column;
      align-items: center;
      text-align: center;
      width: 100%;
    }
  }

  .avatar-wrapper {
    position: relative;
    width: 84px;
    height: 84px;
  }

  .avatar-svg {
    width: 100%;
    height: 100%;
    color: var(--text-secondary);
  }

  .pulse-indicator {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 14px;
    height: 14px;
    background-color: var(--accent-green);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    box-shadow: 0 0 10px rgba(var(--color-emerald-base), 0.8);
    animation: pulseGlow 2s infinite;
  }

  .profile-details h1 {
    margin-bottom: 0.25rem;
  }

  .role-subtitle {
    font-weight: 500;
    color: var(--accent-blue);
    margin-bottom: 0.75rem;
  }

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

  @media (max-width: 480px) {
    .quick-tags {
      justify-content: center;
    }
  }

  .badge {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 99px;
    color: var(--text-primary);
  }

  .badge-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
  }

  .theme-toggle {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 50;
    width: 40px;
    height: 40px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  }

  .theme-toggle:hover {
    background-color: var(--bg-primary);
    border-color: var(--border-glow);
    color: var(--text-primary);
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(var(--color-blue-base), 0.35);
  }

  .light-mode .theme-toggle:hover {
    box-shadow: 0 0 15px rgba(var(--color-amber-base), 0.35);
  }

  /* Sun/Moon visibility depending on theme */
  :root .theme-toggle .sun-icon {
    display: none;
  }
  
  :root .theme-toggle .moon-icon {
    display: block;
    color: var(--accent-blue);
  }

  :root.light-mode .theme-toggle .sun-icon {
    display: block;
    color: var(--accent-amber);
  }
  
  :root.light-mode .theme-toggle .moon-icon {
    display: none;
  }

  /* METRICS GRID */
  .metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 150px);
    gap: 1rem;
  }

  @media (max-width: 1200px) {
    .metrics-grid {
      grid-template-columns: repeat(2, 1fr);
      width: 100%;
    }
  }

  @media (max-width: 480px) {
    .metrics-grid {
      grid-template-columns: 1fr;
    }
  }

  .metric-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 0.5rem;
    box-shadow: var(--shadow-soft);
  }

  .metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
  }

  .metric-value {
    font-size: 1.6rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
  }

  .metric-footer {
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-subtle);
  }

  .status-indicator-green {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--accent-green);
  }

  .status-indicator-blue {
    width: 8px;
    height: 8px;
    background-color: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--accent-blue);
  }

  .metric-icon {
    color: var(--text-secondary);
    opacity: 0.7;
  }

  /* 2. BODY LAYOUT */
  .dashboard-body {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 2rem;
    align-items: start;
  }

  @media (max-width: 1024px) {
    .dashboard-body {
      grid-template-columns: 1fr;
    }
  }

  /* SIDEBAR SIDE PANEL */
  .sidebar-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: sticky;
    top: 2rem;
  }

  @media (max-width: 1024px) {
    .sidebar-panel {
      position: static;
    }
  }

  /* SRE CONSOLE TERMINAL */
  .terminal-wrapper {
    background-color: #0b0b0f;
    border: 1px solid #1f1f2e;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 380px;
  }

  .terminal-header {
    background-color: #12121a;
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #1f1f2e;
  }

  .terminal-buttons {
    display: flex;
    gap: 6px;
  }

  .btn-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
  }

  .btn-dot.close { background-color: #ff5f56; }
  .btn-dot.minimize { background-color: #ffbd2e; }
  .btn-dot.maximize { background-color: #27c93f; }

  .terminal-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #8c8c9b;
  }

  .terminal-audio-toggle {
    color: #606070;
    cursor: pointer;
    transition: color 0.2s;
  }

  .terminal-audio-toggle:hover {
    color: var(--accent-green);
  }

  .terminal-audio-toggle.muted .sound-wave {
    display: none;
  }

  .terminal-body {
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #bfc0d9;
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    scroll-behavior: smooth;
  }

  /* Scrollbar custom for CLI */
  .terminal-body::-webkit-scrollbar {
    width: 6px;
  }
  .terminal-body::-webkit-scrollbar-thumb {
    background-color: #252535;
    border-radius: 3px;
  }

  .terminal-prompt-prefix {
    color: #40c057;
  }

  .terminal-prompt {
    color: var(--accent-blue);
  }

  .text-subtle {
    color: #585c7d;
  }

  .text-accent {
    color: var(--accent-green);
  }

  .command-highlight {
    color: #fcc419;
    font-weight: bold;
  }

  .terminal-input-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .terminal-input-wrapper {
    display: flex;
    align-items: center;
    flex: 1;
    position: relative;
  }

  #terminal-input {
    background: transparent;
    border: none;
    outline: none;
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    width: 100%;
    caret-color: transparent; /* custom cursor */
  }

  .terminal-cursor {
    position: absolute;
    left: 0;
    width: 8px;
    height: 15px;
    background-color: var(--accent-green);
    animation: cursorBlink 1s infinite;
  }

  /* SIDEBAR NAVIGATION */
  .nav-hub {
    background-color: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
  }

  .nav-title {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-subtle);
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
  }

  .nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: background-color 0.2s ease, color 0.2s ease;
  }

  .nav-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
  }

  .nav-item.active {
    background-color: light-dark(rgba(0, 113, 227, 0.08), rgba(16, 185, 129, 0.08));
    border: 1px solid var(--border-glow);
    color: light-dark(var(--accent-blue), var(--accent-green));
  }

  /* 3. CONTENT CORE PANELS */
  .content-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }

  .section-card {
    background-color: var(--glass-bg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-soft);
    scroll-margin-top: 2rem;
  }

  @media (max-width: 480px) {
    .section-card {
      padding: 1.5rem;
    }
  }

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

  .panel-badge {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background-color: light-dark(rgba(0, 113, 227, 0.1), rgba(16, 185, 129, 0.1));
    color: light-dark(var(--accent-blue), var(--accent-green));
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
    border: 1px solid var(--border-glow);
  }

  .section-desc {
    margin-bottom: 2rem;
  }

  /* SECTION A: SYSTEMS TOPOLOGY */
  .topology-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .topology-canvas {
    position: relative;
    width: 100%;
    height: 360px;
    background-color: light-dark(#ffffff, #0d0d12);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.3);
  }

  .topology-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }

  .topo-line {
    stroke: var(--border-color);
    stroke-width: 1.5;
    fill: none;
    stroke-dasharray: 4 4;
    transition: stroke 0.3s ease, stroke-width 0.3s ease;
  }

  .topo-line.line-pulse {
    stroke: var(--accent-green);
    stroke-width: 2.5;
    stroke-dasharray: 8 8;
    animation: flowPulse 10s linear infinite;
  }

  .topo-node {
    position: absolute;
    transform: translate(-50%, -50%);
    cursor: pointer;
    outline: none;
    transition: transform 0.2s ease;
  }

  .topo-node:hover {
    transform: translate(-50%, -50%) scale(1.1);
  }

  .topo-node.active {
    z-index: 10;
  }

  .node-center {
    left: 50%;
    top: 50%;
    width: 72px;
    height: 72px;
    background: radial-gradient(circle, var(--accent-green) 0%, rgba(var(--color-emerald-base), 0.6) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .node-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--accent-green);
    opacity: 0.35;
    filter: blur(12px);
    animation: corePulse 2s infinite alternate;
  }

  .node-label {
    font-weight: 700;
    font-size: 0.75rem;
    color: #ffffff;
    z-index: 2;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
  }

  .node-orbit {
    width: 52px;
    height: 52px;
    background-color: var(--bg-secondary);
    border: 2.5px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
    z-index: 5;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .node-orbit:hover, .node-orbit:focus-visible {
    border-color: var(--accent-green);
    box-shadow: 0 0 15px rgba(var(--color-emerald-base), 0.4);
  }

  .node-orbit.active {
    border-color: var(--accent-green);
    box-shadow: 0 0 20px rgba(var(--color-emerald-base), 0.5);
    background-color: var(--bg-tertiary);
  }

  .node-inner {
    font-size: 0.58rem;
    font-weight: 700;
    text-transform: uppercase;
    text-align: center;
    color: var(--text-primary);
  }

  /* Node Tooltips */
  .node-tooltip {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: #111116;
    border: 1px solid #28283a;
    color: #bfc0d9;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.75rem;
    line-height: 1.4;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .node-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: #111116 transparent transparent transparent;
  }

  .topo-node:hover .node-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }

  .topology-details-panel {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .panel-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent-blue);
  }

  /* SECTION B: EXPERIENCE TIMELINE */
  .timeline-container {
    display: flex;
    flex-direction: column;
    position: relative;
    padding-left: 2rem;
  }

  .timeline-container::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 1.5rem;
    bottom: 1.5rem;
    width: 2px;
    background-color: var(--border-color);
  }

  .timeline-item {
    position: relative;
    padding-bottom: 2rem;
  }

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

  .timeline-dot-wrapper {
    position: absolute;
    left: -2rem;
    top: 6px;
    width: 14px;
    height: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .timeline-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    border: 2px solid var(--bg-primary);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }

  .timeline-item.active-timeline .timeline-dot {
    background-color: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
  }

  .timeline-dot.animated-dot {
    animation: dotPulse 1.5s infinite alternate;
  }

  .timeline-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.75rem;
    box-shadow: var(--shadow-soft);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

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

  .timeline-meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
    gap: 1rem;
  }

  @media (max-width: 580px) {
    .timeline-meta {
      flex-direction: column;
      gap: 0.5rem;
    }
  }

  .company-brand h3 {
    margin-bottom: 0.25rem;
    color: var(--text-primary);
  }

  .company-name {
    font-weight: 500;
    color: var(--accent-blue);
    font-size: 0.95rem;
  }

  .timeline-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
  }

  .timeline-bullets {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-left: 1.25rem;
    list-style-type: square;
    color: var(--text-secondary);
  }

  .timeline-bullets li::marker {
    color: var(--accent-green);
  }

  .timeline-bullets li {
    font-size: 0.92rem;
    line-height: 1.5;
  }

  /* SECTION C: SKILLS MATRIX */
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  @media (max-width: 580px) {
    .skills-grid {
      grid-template-columns: 1fr;
    }
  }

  .skills-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: var(--shadow-soft);
  }

  .skills-category-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-blue);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
  }

  .skills-tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .skill-tag {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  }

  .skill-tag:hover {
    background-color: var(--bg-primary);
    border-color: var(--border-glow);
    color: var(--text-primary);
  }

  .skill-tag.skill-highlight {
    background-color: light-dark(rgba(16, 185, 129, 0.05), rgba(16, 185, 129, 0.08));
    border-color: var(--border-glow);
    color: light-dark(var(--accent-blue), var(--accent-green));
    font-weight: 600;
  }

  /* SECTION D: SOCIAL CONNECTIONS & EDU */
  .connections-wrapper {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
  }

  @media (max-width: 580px) {
    .connections-wrapper {
      grid-template-columns: 1fr;
    }
  }

  .connect-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: var(--shadow-soft);
    cursor: pointer;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
  }

  .connect-card:hover {
    transform: translateY(-2px);
  }

  #linkedin-card:hover {
    border-color: rgba(var(--color-blue-base), 0.6);
    box-shadow: 0 0 15px rgba(var(--color-blue-base), 0.2);
  }

  #email-card:hover {
    border-color: rgba(var(--color-emerald-base), 0.6);
    box-shadow: 0 0 15px rgba(var(--color-emerald-base), 0.2);
  }

  .connect-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
  }

  .connect-status {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 700;
  }

  #linkedin-card .connect-status {
    color: var(--accent-blue);
  }

  #email-card .connect-status {
    color: var(--accent-green);
  }

  .connect-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
  }

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

  .connect-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-subtle);
    border-top: 1px solid var(--border-color);
    padding-top: 0.75rem;
  }

  .connect-card:hover .connect-action {
    color: var(--text-primary);
  }

  /* Education section inside main dashboard layout */
  .education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  @media (max-width: 580px) {
    .education-grid {
      grid-template-columns: 1fr;
    }
  }

  .education-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: var(--shadow-soft);
  }

  .edu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
  }

  .edu-tag {
    font-size: 0.65rem;
    font-weight: 700;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    color: var(--text-secondary);
  }

  .edu-gpa {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-green);
  }

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

  .edu-major {
    font-size: 0.9rem;
    color: var(--accent-blue);
    font-weight: 500;
  }

  .edu-school {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
  }

  /* 4. FOOTER PANEL */
  .footer-panel {
    background-color: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    box-shadow: var(--shadow-soft);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
  }

  @media (max-width: 768px) {
    .footer-panel {
      flex-direction: column;
      gap: 1rem;
      text-align: center;
    }
  }

  .footer-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  /* 5. FLOATING SRE QUICK CONNECT WIDGET */
  .floating-sre-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
  }

  @media (max-width: 480px) {
    .floating-sre-widget {
      bottom: 1rem;
      right: 1rem;
    }
  }

  .widget-trigger {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-green) 0%, rgba(var(--color-emerald-base), 0.8) 100%);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3), 0 0 10px rgba(var(--color-emerald-base), 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    position: relative;
    transition: transform 0.2s;
  }

  .widget-trigger:hover {
    transform: scale(1.05);
  }

  .widget-icon {
    transition: transform 0.3s ease;
  }

  .floating-sre-widget.expanded .widget-icon {
    transform: rotate(135deg);
  }

  .widget-pulse {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--accent-green);
    opacity: 0.4;
    z-index: -1;
    animation: corePulse 1.8s infinite alternate;
  }

  .widget-card {
    width: 280px;
    background-color: #111116;
    border: 1px solid #28283a;
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    display: none; /* Controlled via expanded class in JS */
    flex-direction: column;
    gap: 1rem;
    transform-origin: bottom right;
    animation: widgetSlide 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .floating-sre-widget.expanded .widget-card {
    display: flex;
  }

  .widget-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid #1f1f2e;
    padding-bottom: 0.75rem;
  }

  .widget-avatar {
    width: 38px;
    height: 38px;
    background-color: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 700;
    font-size: 0.85rem;
  }

  .widget-meta {
    display: flex;
    flex-direction: column;
  }

  .widget-name {
    font-weight: 700;
    color: #ffffff;
    font-size: 0.9rem;
  }

  .widget-status {
    font-size: 0.7rem;
    color: var(--accent-green);
    font-family: var(--font-mono);
  }

  .widget-card-body p {
    font-size: 0.78rem;
    color: #8c8c9b;
    line-height: 1.4;
    margin-bottom: 1rem;
  }

  .widget-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .widget-btn-primary {
    display: block;
    background-color: var(--accent-blue);
    color: #ffffff;
    text-align: center;
    padding: 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: background-color 0.2s;
  }

  .widget-btn-primary:hover {
    background-color: #0056b3;
  }

  .widget-btn-secondary {
    display: block;
    background-color: #1a1a24;
    border: 1px solid #28283a;
    color: #bfc0d9;
    text-align: center;
    padding: 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: background-color 0.2s, color 0.2s;
  }

  .widget-btn-secondary:hover {
    background-color: #252535;
    color: #ffffff;
  }
}

@layer utilities {
  /* Keyframe Animations */
  @keyframes cursorBlink {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
  }

  @keyframes pulseGlow {
    0% { transform: scale(1); box-shadow: 0 0 4px var(--accent-green); }
    50% { transform: scale(1.1); box-shadow: 0 0 12px var(--accent-green); }
    100% { transform: scale(1); box-shadow: 0 0 4px var(--accent-green); }
  }

  @keyframes corePulse {
    0% { transform: scale(1); opacity: 0.35; filter: blur(8px); }
    100% { transform: scale(1.1); opacity: 0.5; filter: blur(14px); }
  }

  @keyframes dotPulse {
    0% { transform: scale(1); box-shadow: 0 0 4px var(--accent-green); }
    100% { transform: scale(1.2); box-shadow: 0 0 12px var(--accent-green); }
  }

  @keyframes flowPulse {
    0% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -100px; }
  }

  @keyframes widgetSlide {
    0% { transform: scale(0.9) translateY(10px); opacity: 0; }
    100% { transform: scale(1) translateY(0); opacity: 1; }
  }
}