@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800&family=Mrs+Saint+Delafield&family=Mr+Dafoe&display=swap');

/* --- CASCADE LAYERS --- */
@layer reset, base, theme, components, utilities;

@layer reset {
  *, *::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: 1.6;
    overflow-x: hidden;
  }

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

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

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

  ul, ol {
    list-style: none;
  }
}

@layer base {
  :root {
    /* Fonts */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Theme Colors (Deep space dark with Emerald/Lime accents) */
    --bg-dark-raw: 9, 9, 9;
    --bg-dark: rgb(var(--bg-dark-raw));
    --bg-card-raw: 16, 18, 25;
    --bg-card: rgba(var(--bg-card-raw), 0.5);
    --bg-card-hover: rgba(var(--bg-card-raw), 0.85);
    
    --color-text-primary: #ffffff;
    --color-text-secondary: #9ca3af; /* Gray 400 */
    --color-text-muted: #6b7280;     /* Gray 500 */
    
    /* Accent Palette - Cyber/Lime Green (aqeelshamz.com) */
    --accent-raw: 135, 230, 76;      /* #87e64c */
    --accent: rgb(var(--accent-raw));
    --accent-glow: rgba(var(--accent-raw), 0.15);
    --accent-glow-strong: rgba(var(--accent-raw), 0.35);
    --accent-dark: #84cc16;
    
    --border-card: rgba(255, 255, 255, 0.05);
    --border-card-hover: rgba(var(--accent-raw), 0.25);

    /* Borders */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  }

  body {
    background-color: var(--bg-dark);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    overflow-y: auto;
  }

  /* Custom Scrollbar */
  scrollbar-color: rgba(var(--accent-raw), 0.3) var(--bg-dark);
  scrollbar-width: thin;

  body::-webkit-scrollbar {
    width: 6px;
  }
  body::-webkit-scrollbar-track {
    background: var(--bg-dark);
  }
  body::-webkit-scrollbar-thumb {
    background: rgba(var(--accent-raw), 0.25);
    border-radius: 4px;
  }
  body::-webkit-scrollbar-thumb:hover {
    background: rgba(var(--accent-raw), 0.5);
  }

  ::selection {
    background: rgba(var(--accent-raw), 0.25);
    color: #fff;
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: #ffffff;
  }
}

@layer components {
  /* --- LAYOUT CONTAINER --- */
  .container {
    width: 100%;
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: 1.5rem;
  }

  /* --- HEADER & NAVIGATION --- */
  .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding-top: 1.5rem;
    pointer-events: none;
  }

  .header-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    pointer-events: auto;
  }

  /* Navigation capsule */
  .nav-capsule {
    background: rgba(14, 16, 22, 0.45);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.3rem 0.6rem;
    border-radius: 100px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }

  .nav-link {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: 0.45rem 1.1rem;
    border-radius: 100px;
    transition: var(--transition-fast);
  }

  .nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.03);
  }

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

  .menu-toggle {
    display: none;
    background: rgba(14, 16, 22, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    color: #ffffff;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
  }

  .menu-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
  }

  /* --- HERO SECTION --- */
  .hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 5rem;
    padding-bottom: 3rem;
    position: relative;
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
  }

  .status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.08em;
    background: rgba(var(--accent-raw), 0.08);
    padding: 0.35rem 0.85rem;
    border-radius: 100px;
    border: 1px solid rgba(var(--accent-raw), 0.15);
  }

  .status-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    position: relative;
  }

  .status-dot::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(2.8); opacity: 0; }
  }

  /* Large Headline styling */
  .hero-headline {
    font-size: clamp(2.4rem, 6.2vw, 5.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: #ffffff;
    max-width: 950px;
  }

  /* Overlap signature styling */
  .overthink-wrap {
    position: relative;
    display: inline-block;
  }

  .signature-text {
    position: absolute;
    font-family: 'Mrs Saint Delafield', cursive;
    color: var(--accent);
    font-size: clamp(2.8rem, 6.5vw, 5.8rem);
    font-weight: 400;
    left: 85%;
    bottom: -0.3em;
    transform: rotate(-8deg);
    white-space: nowrap;
    pointer-events: none;
    letter-spacing: 0;
    text-shadow: 0 0 12px rgba(var(--accent-raw), 0.25);
    user-select: none;
  }

  .hero-headline .highlight {
    color: var(--accent);
  }

  .hero-subheadline {
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    color: var(--color-text-secondary);
    max-width: 620px;
    line-height: 1.6;
  }

  .hero-actions {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
  }

  /* BUTTONS */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.92rem;
    transition: var(--transition-smooth);
    cursor: pointer;
  }

  .btn-primary {
    background: var(--accent);
    color: #000000;
    box-shadow: 0 8px 24px rgba(var(--accent-raw), 0.15);
  }

  .btn-primary:hover {
    background: #ffffff;
    box-shadow: 0 10px 28px rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
  }

  .btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.15);
  }

  .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
  }

  /* Scroll Indicator */
  .scroll-indicator {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
  }

  .scroll-line {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    position: relative;
    overflow: hidden;
  }

  .scroll-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 12px;
    background: var(--accent);
    animation: scroll-dot 2.2s ease-in-out infinite;
  }

  @keyframes scroll-dot {
    0% { transform: translateY(-12px); }
    80%, 100% { transform: translateY(48px); }
  }

  /* --- SECTION GENERAL STYLING --- */
  .section {
    padding-block: 7rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    scroll-margin-top: 90px;
  }

  .section-tag {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    display: inline-block;
    margin-bottom: 1rem;
    position: relative;
    padding-left: 1.5rem;
  }

  .section-tag::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 1rem;
    height: 1px;
    background: var(--accent);
  }

  .section-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
  }

  .section-title .highlight {
    color: var(--accent);
  }

  /* --- ABOUT SECTION --- */
  .about-top-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: flex-start;
    margin-bottom: 4rem;
  }

  .about-desc-block {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
  }

  .about-desc-block strong {
    color: #ffffff;
  }

  .about-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
  }

  .metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
  }

  .metric-card:hover {
    border-color: var(--border-card-hover);
    background: var(--bg-card-hover);
  }

  .metric-num {
    font-size: clamp(2rem, 3.8vw, 2.8rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 0.4rem;
  }

  .metric-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .about-details-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .details-box {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 2.25rem;
  }

  .details-box h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .details-box ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .details-box li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
  }

  .details-box li span {
    color: var(--accent);
    font-weight: bold;
  }

  /* --- SERVICES / WHAT I DO --- */
  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    transition: var(--transition-smooth);
  }

  .service-card:hover {
    border-color: var(--border-card-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
  }

  .service-icon-box {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: rgba(var(--accent-raw), 0.08);
    border: 1px solid rgba(var(--accent-raw), 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
  }

  .service-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
  }

  .service-card p {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
  }

  /* --- STACK & EXPERIENCE --- */
  .stack-section {
    margin-bottom: 6rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .stack-tag {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
  }

  .marquee-container {
    overflow: hidden;
    user-select: none;
    display: flex;
    width: 100%;
    mask-image: linear-gradient(
      to right,
      transparent,
      rgba(0, 0, 0, 1) 15%,
      rgba(0, 0, 0, 1) 85%,
      transparent
    );
    -webkit-mask-image: linear-gradient(
      to right,
      transparent,
      rgba(0, 0, 0, 1) 15%,
      rgba(0, 0, 0, 1) 85%,
      transparent
    );
  }

  .marquee-track {
    display: flex;
    width: max-content;
    animation: marquee-scroll 45s linear infinite;
  }

  .marquee-track:hover {
    animation-play-state: paused;
  }

  .marquee-group {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 0.6rem;
    padding-right: 0.6rem;
  }

  @keyframes marquee-scroll {
    0% {
      transform: translateX(0);
    }
    100% {
      transform: translateX(-50%);
    }
  }

  .stack-badge {
    font-size: 0.8rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.45rem 1.1rem;
    border-radius: 100px;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
  }

  .stack-badge:hover {
    color: #ffffff;
    border-color: rgba(var(--accent-raw), 0.3);
    background: rgba(var(--accent-raw), 0.04);
  }

  .experience-header-block {
    margin-bottom: 4rem;
  }

  /* Timeline */
  .timeline-container {
    display: flex;
    flex-direction: column;
    max-width: 900px;
  }

  .timeline-row {
    display: grid;
    grid-template-columns: 200px 50px 1fr;
    position: relative;
  }

  .timeline-row::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 224px;
    width: 1px;
    background: rgba(255, 255, 255, 0.05);
    z-index: 0;
  }

  .timeline-row:last-child::before {
    bottom: 80%; /* clip ending line */
  }

  .timeline-time {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
    padding-top: 1.8rem;
  }

  .timeline-dot-container {
    position: relative;
    display: flex;
    justify-content: center;
    padding-top: 2rem;
    z-index: 1;
  }

  .timeline-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--bg-dark);
    border: 2px solid var(--accent);
  }

  .timeline-info {
    padding-block: 1.75rem 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .timeline-info h3 {
    font-size: 1.25rem;
    font-weight: 700;
  }

  .timeline-company {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
  }

  .timeline-info p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-top: 0.5rem;
  }

  .timeline-badges {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
  }

  .t-badge {
    font-size: 0.72rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
    padding: 0.25rem 0.65rem;
    border-radius: 4px;
  }

  /* --- PROJECTS SECTION --- */
  .section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 2rem;
  }

  .projects-tabs {
    display: inline-flex;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.25rem;
    border-radius: 100px;
    gap: 0.15rem;
  }

  .project-tab {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: 0.5rem 1.4rem;
    border-radius: 100px;
    transition: var(--transition-fast);
  }

  .project-tab:hover {
    color: #ffffff;
  }

  .project-tab.active {
    background: var(--accent);
    color: #000000;
  }

  .projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
  }

  .project-card:hover {
    border-color: var(--border-card-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
  }

  .project-img-container {
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: #0f1118;
    border-bottom: 1px solid var(--border-card);
  }

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

  .project-card:hover .project-img-container img {
    transform: scale(1.025);
  }

  /* Placeholder design for cards without mockups */
  .project-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(var(--accent-raw), 0.08) 0%, transparent 80%);
    font-family: var(--font-heading);
    font-weight: 800;
    color: rgba(255, 255, 255, 0.4);
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .project-card-body {
    padding: 2.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
  }

  .project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .p-tag-accent {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(var(--accent-raw), 0.08);
    border: 1px solid rgba(var(--accent-raw), 0.15);
    padding: 0.25rem 0.65rem;
    border-radius: 4px;
  }

  .p-date {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
  }

  .project-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
  }

  .project-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex-grow: 1;
  }

  .project-tech-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 1.25rem;
    margin-top: 0.5rem;
  }

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

  .tech-tag:not(:last-of-type)::after {
    content: ' ·';
    font-weight: bold;
  }

  .tech-link {
    margin-left: auto;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
  }

  /* Filter transition helper classes */
  .projects-grid > * {
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .hidden-item {
    display: none !important;
  }

  /* --- EDUCATION SECTION --- */
  .education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .education-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    display: flex;
    gap: 1.75rem;
    align-items: flex-start;
  }

  .edu-icon-box {
    width: 44px;
    height: 44px;
    background: rgba(var(--accent-raw), 0.08);
    border: 1px solid rgba(var(--accent-raw), 0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    flex-shrink: 0;
  }

  .edu-details {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
  }

  .edu-date {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
  }

  .edu-details h3 {
    font-size: 1.25rem;
    font-weight: 700;
  }

  .edu-major {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
  }

  .edu-badge {
    font-size: 0.72rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
    padding: 0.25rem 0.65rem;
    border-radius: 4px;
    width: fit-content;
    margin-top: 0.4rem;
  }

  /* --- CONTACT / FOOTER SECTION --- */
  .contact-section {
    padding-block: 8rem 4rem;
  }

  .contact-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.75rem;
  }

  .contact-title {
    font-size: clamp(2.4rem, 6.5vw, 5.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: #ffffff;
  }

  .contact-title .highlight {
    color: var(--accent);
  }

  .contact-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-secondary);
  }

  .contact-btns-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
  }

  .contact-btn {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #ffffff;
    padding: 0.8rem 1.8rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    position: relative;
  }

  .contact-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
  }

  .email-btn {
    background: var(--accent);
    color: #000000;
    border-color: var(--accent);
  }

  .email-btn:hover {
    background: #ffffff;
    border-color: #ffffff;
    color: #000000;
  }

  /* Clipboard Tooltip */
  .copy-tooltip {
    position: absolute;
    top: -42px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffffff;
    color: #000000;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-fast);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
  }

  .copy-tooltip::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 8px;
    height: 8px;
    background: #ffffff;
  }

  .copy-trigger:hover .copy-tooltip {
    opacity: 1;
  }

  /* Footer Copyright details */
  .footer-bottom {
    margin-top: 6rem;
    width: 100%;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
  }
}

/* --- RESPONSIVE LAYOUTS --- */
@media (max-width: 992px) {
  .about-top-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-details-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .education-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .header {
    padding-top: 1rem;
  }

  .header-container {
    justify-content: flex-end;
  }

  .signature-text {
    font-size: 3rem;
    left: 50%;
    bottom: -0.85em;
    transform: translateX(-50%) rotate(-5deg);
  }

  .nav-capsule {
    position: fixed;
    top: 5rem;
    left: 1.5rem;
    right: 1.5rem;
    border-radius: var(--radius-md);
    background: rgba(14, 16, 22, 0.95);
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 99;
  }

  .nav-capsule.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  .nav-link {
    text-align: center;
    border-radius: 6px;
    padding: 0.75rem;
  }

  .menu-toggle {
    display: flex;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
  }

  .about-metrics {
    grid-template-columns: 1fr;
  }

  .timeline-row {
    grid-template-columns: 1fr;
  }

  .timeline-row::before {
    display: none;
  }

  .timeline-time {
    padding-top: 0;
    color: var(--accent);
  }

  .timeline-dot-container {
    display: none;
  }

  .timeline-info {
    padding-block: 0.5rem 2rem;
  }
}