/* ============================================================
   DESIGN TOKENS
   ============================================================ */
   :root {
    --bg-primary: #020811;
    --bg-secondary: #060f1e;
    --bg-card: rgba(6, 20, 48, 0.6);
    --bg-glass: rgba(10, 30, 70, 0.35);
  
    --blue-core: #1a6fff;
    --blue-bright: #4d9fff;
    --blue-glow: rgba(26, 111, 255, 0.25);
    --blue-dim: rgba(26, 111, 255, 0.08);
  
    --white: #ffffff;
    --white-90: rgba(255,255,255,0.9);
    --white-60: rgba(255,255,255,0.6);
    --white-30: rgba(255,255,255,0.3);
    --white-10: rgba(255,255,255,0.07);
  
    --border: rgba(26, 111, 255, 0.2);
    --border-light: rgba(255,255,255,0.08);
  
    --font-display: 'Syne', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
  
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
  
    --shadow-blue: 0 0 40px rgba(26, 111, 255, 0.18);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 80px rgba(26, 111, 255, 0.12);
  
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  [data-theme="light"] {
    --bg-primary: #f0f4ff;
    --bg-secondary: #e6eeff;
    --bg-card: rgba(230, 238, 255, 0.7);
    --bg-glass: rgba(200, 220, 255, 0.5);
    --white: #0a0f1e;
    --white-90: rgba(10,15,30,0.9);
    --white-60: rgba(10,15,30,0.6);
    --white-30: rgba(10,15,30,0.3);
    --white-10: rgba(10,15,30,0.06);
    --border: rgba(26, 111, 255, 0.3);
    --border-light: rgba(10,15,30,0.1);
    --shadow-card: 0 8px 32px rgba(26, 111, 255, 0.12);
  }
  
  /* ============================================================
     RESET & BASE
     ============================================================ */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; font-size: 16px; }
  body {
    background: var(--bg-primary);
    color: var(--white);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }
  ul { list-style: none; }
  button { cursor: none; border: none; background: none; font-family: inherit; }
  
  /* ============================================================
     CUSTOM CURSOR
     ============================================================ */
  #cursor-dot {
    position: fixed;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--blue-core);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background 0.2s;
    box-shadow: 0 0 12px var(--blue-core);
  }
  #cursor-ring {
    position: fixed;
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 1.5px solid rgba(26,111,255,0.6);
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.25s ease, height 0.25s ease, border-color 0.25s ease;
  }
  body:has(a:hover) #cursor-dot,
  body:has(button:hover) #cursor-dot { width: 14px; height: 14px; }
  body:has(a:hover) #cursor-ring,
  body:has(button:hover) #cursor-ring { width: 52px; height: 52px; border-color: var(--blue-core); }
  
  /* ============================================================
     LOADING SCREEN
     ============================================================ */
  #loader {
    position: fixed; inset: 0;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
  }
  #loader.hidden { opacity: 0; visibility: hidden; }
  .loader-logo {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--white);
    margin-bottom: 2rem;
  }
  .loader-logo span { color: var(--blue-core); }
  .loader-bar-wrap {
    width: 200px;
    height: 3px;
    background: var(--white-10);
    border-radius: 99px;
    overflow: hidden;
  }
  .loader-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--blue-core), var(--blue-bright));
    border-radius: 99px;
    animation: loadBar 1.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  }
  .loader-percent {
    margin-top: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--blue-bright);
    letter-spacing: 0.1em;
  }
  @keyframes loadBar { to { width: 100%; } }
  
  /* ============================================================
     PARTICLE CANVAS
     ============================================================ */
  #particles-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
  }
  
  /* ============================================================
     LAYOUT HELPERS
     ============================================================ */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 2;
  }
  .section {
    padding: 7rem 0;
    position: relative;
  }
  .section-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    color: var(--blue-bright);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: block;
  }
  .section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--white);
    margin-bottom: 1rem;
  }
  .section-title span { color: var(--blue-core); }
  .section-sub {
    font-size: 1.05rem;
    color: var(--white-60);
    max-width: 560px;
    line-height: 1.7;
  }
  .section-header { margin-bottom: 3.5rem; }
  
  /* Glass card */
  .glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
  }
  
  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.8rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    transition: var(--transition);
    cursor: none;
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--blue-core);
    color: #fff;
    box-shadow: 0 0 24px rgba(26,111,255,0.4);
  }
  .btn-primary:hover {
    background: var(--blue-bright);
    box-shadow: 0 0 40px rgba(26,111,255,0.6);
    transform: translateY(-2px);
  }
  .btn-outline {
    border: 1.5px solid var(--border);
    color: var(--white-90);
  }
  .btn-outline:hover {
    border-color: var(--blue-core);
    color: var(--blue-bright);
    background: var(--blue-dim);
    transform: translateY(-2px);
  }
  
  /* Scroll reveal */
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s ease, transform 0.65s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
  
  /* ============================================================
     NAVBAR
     ============================================================ */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: var(--transition);
  }
  nav.scrolled {
    background: rgba(2, 8, 17, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    padding: 0.85rem 0;
  }
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
  }
  .nav-logo span { color: var(--blue-core); }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
  .nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--white-60);
    transition: color 0.2s;
    position: relative;
  }
  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -3px; left: 0;
    width: 0; height: 1.5px;
    background: var(--blue-core);
    transition: width 0.25s ease;
  }
  .nav-links a:hover { color: var(--white); }
  .nav-links a:hover::after { width: 100%; }
  .nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  .theme-toggle {
    width: 38px; height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white-60);
    transition: var(--transition);
    background: var(--white-10);
  }
  .theme-toggle:hover { color: var(--blue-bright); border-color: var(--blue-core); }
  .nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
  }
  .nav-hamburger span {
    display: block;
    width: 22px; height: 2px;
    background: var(--white-90);
    border-radius: 2px;
    transition: var(--transition);
  }
  .mobile-menu {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(2,8,17,0.97);
    backdrop-filter: blur(20px);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
  }
  .mobile-menu.open { display: flex; }
  .mobile-menu a {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white-20);
    transition: color 0.2s;
  }
  .mobile-menu a:hover { color: var(--blue-bright); }
  .mobile-close {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    width: 42px; height: 42px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--white-60);
    font-size: 1.2rem;
    transition: var(--transition);
  }
  .mobile-close:hover { color: var(--white); border-color: var(--white-30); }
  
  /* ============================================================
     HERO
     ============================================================ */
  .hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 5rem;
    position: relative;
    overflow: hidden;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--blue-dim);
    border: 1px solid var(--border);
    border-radius: 99px;
    padding: 0.4rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--blue-bright);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
  }
  .hero-eyebrow .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--blue-bright);
    animation: pulse-dot 2s infinite;
  }
  @keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }
  .hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: 1.25rem;
  }
  .hero-headline .gradient-text {
    background: linear-gradient(135deg, var(--blue-core) 0%, var(--blue-bright) 50%, #a3c4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .hero-sub {
    font-size: 1.1rem;
    color: var(--white-60);
    max-width: 480px;
    line-height: 1.7;
    margin-bottom: 2.5rem;
  }
  .hero-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
  }
  .hero-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
  }
  .hero-stat {}
  .hero-stat-num {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
  }
  .hero-stat-num span { color: var(--blue-core); }
  .hero-stat-label {
    font-size: 0.8rem;
    color: var(--white-60);
    margin-top: 0.2rem;
  }
  
  /* Hero illustration */
  .hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .hero-code-window {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-blue), var(--shadow-card);
    animation: float-card 5s ease-in-out infinite;
  }
  @keyframes float-card {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-14px); }
  }
  .code-window-bar {
    padding: 0.75rem 1rem;
    background: rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-light);
  }
  .code-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
  }
  .code-dot-r { background: #ff5f57; }
  .code-dot-y { background: #febc2e; }
  .code-dot-g { background: #28c840; }
  .code-window-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--white-30);
    margin-left: 0.5rem;
  }
  .code-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
  }
  .code-line { display: flex; gap: 1rem; }
  .code-ln { color: var(--white-30); user-select: none; min-width: 1.5rem; text-align: right; }
  .kw { color: #7aa2f7; }
  .fn { color: #82aaff; }
  .str { color: #9ece6a; }
  .cmt { color: #545c7e; font-style: italic; }
  .var { color: #bb9af7; }
  .num { color: #ff9e64; }
  .punc { color: var(--white-60); }
  
  /* Floating tech badges */
  .tech-badge {
    position: absolute;
    padding: 0.5rem 0.9rem;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--white-90);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    box-shadow: var(--shadow-card);
    animation: float-badge 4s ease-in-out infinite;
  }
  .tech-badge i { color: var(--blue-bright); font-size: 0.9rem; }
  .badge-1 { top: -20px; right: -20px; animation-delay: 0s; }
  .badge-2 { bottom: 40px; left: -30px; animation-delay: 1.2s; }
  .badge-3 { bottom: -15px; right: 20px; animation-delay: 0.6s; }
  @keyframes float-badge {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
  }
  
  /* Glow blob */
  .hero-glow {
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(26,111,255,0.12) 0%, transparent 70%);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 0;
  }
  
  /* ============================================================
     ABOUT
     ============================================================ */
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 5rem;
    align-items: center;
  }
  .about-img-wrap {
    position: relative;
  }
  .about-img-frame {
    width: 100%;
    aspect-ratio: 4/5;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: var(--shadow-blue);
  }
  .about-img-placeholder {
    font-size: 8rem;
    opacity: 0.15;
  }
  .about-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,111,255,0.08) 0%, transparent 60%);
  }
  .about-badge-exp {
    position: absolute;
    bottom: -20px; right: -20px;
    background: var(--blue-core);
    color: #fff;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    box-shadow: 0 0 30px rgba(26,111,255,0.5);
    text-align: center;
  }
  .about-badge-exp .big { font-family: var(--font-display); font-size: 2rem; font-weight: 800; line-height: 1; }
  .about-badge-exp .small { font-size: 0.7rem; opacity: 0.85; }
  .about-content {}
  .about-desc {
    font-size: 1.05rem;
    color: var(--white-60);
    line-height: 1.8;
    margin-bottom: 2.5rem;
  }
  .skills-list { margin-bottom: 2.5rem; }
  .skill-item { margin-bottom: 1.25rem; }
  .skill-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.4rem;
    font-size: 0.88rem;
  }
  .skill-name { color: var(--white-90); font-weight: 500; }
  .skill-pct { color: var(--blue-bright); font-family: var(--font-mono); font-size: 0.8rem; }
  .skill-bar {
    height: 5px;
    background: var(--white-10);
    border-radius: 99px;
    overflow: hidden;
  }
  .skill-fill {
    height: 100%;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--blue-core), var(--blue-bright));
    width: 0%;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
  .about-stat-card {
    padding: 1.25rem 1rem;
    text-align: center;
    border-radius: var(--radius-md);
  }
  .about-stat-num {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
  }
  .about-stat-num span { color: var(--blue-core); }
  .about-stat-label {
    font-size: 0.78rem;
    color: var(--white-60);
    margin-top: 0.3rem;
  }
  
  /* ============================================================
     SERVICES
     ============================================================ */
  .services-bg {
    background: linear-gradient(180deg, transparent 0%, rgba(26,111,255,0.03) 50%, transparent 100%);
  }
  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .service-card {
    padding: 2rem 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    group: true;
  }
  .service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--blue-core), var(--blue-bright));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
  }
  .service-card:hover::before { transform: scaleX(1); }
  .service-card:hover {
    border-color: var(--border);
    background: var(--bg-glass);
    transform: translateY(-6px);
    box-shadow: var(--shadow-blue);
  }
  .service-icon {
    width: 52px; height: 52px;
    border-radius: var(--radius-md);
    background: var(--blue-dim);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--blue-bright);
    margin-bottom: 1.25rem;
    transition: var(--transition);
  }
  .service-card:hover .service-icon {
    background: var(--blue-core);
    color: #fff;
    box-shadow: 0 0 20px rgba(26,111,255,0.4);
  }
  .service-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.6rem;
  }
  .service-desc {
    font-size: 0.9rem;
    color: var(--white-60);
    line-height: 1.7;
    margin-bottom: 1.5rem;
  }
  .service-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--blue-bright);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap 0.2s;
  }
  .service-link:hover { gap: 0.6rem; }
  
  /* ============================================================
     PORTFOLIO
     ============================================================ */
  .portfolio-filters {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
  }
  .filter-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border-light);
    color: var(--white-60);
    background: var(--white-10);
    transition: var(--transition);
    cursor: none;
  }
  .filter-btn.active, .filter-btn:hover {
    border-color: var(--blue-core);
    color: var(--blue-bright);
    background: var(--blue-dim);
  }
  .portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .portfolio-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    transition: var(--transition);
    cursor: none;
  }
  .portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-blue);
    border-color: var(--border);
  }
  .portfolio-thumb {
    aspect-ratio: 16/10;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .portfolio-thumb-icon {
    font-size: 3.5rem;
    opacity: 0.12;
  }
  .portfolio-thumb-gradient {
    position: absolute;
    inset: 0;
    opacity: 0;
    background: linear-gradient(135deg, rgba(26,111,255,0.3), rgba(77,159,255,0.2));
    transition: opacity 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
  }
  .portfolio-card:hover .portfolio-thumb-gradient { opacity: 1; }
  .portfolio-body { padding: 1.5rem; }
  .portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
  }
  .portfolio-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    background: var(--blue-dim);
    border: 1px solid var(--border);
    color: var(--blue-bright);
  }
  .portfolio-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.4rem;
  }
  .portfolio-desc {
    font-size: 0.85rem;
    color: var(--white-60);
    line-height: 1.6;
    margin-bottom: 1.25rem;
  }
  .portfolio-actions {
    display: flex;
    gap: 0.75rem;
  }
  .portfolio-btn {
    flex: 1;
    text-align: center;
    padding: 0.55rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    border: 1px solid var(--border);
    color: var(--white-60);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
  }
  .portfolio-btn:hover { border-color: var(--blue-core); color: var(--blue-bright); background: var(--blue-dim); }
  .portfolio-card[data-hidden="true"] { display: none; }
  
  /* ============================================================
     PRICING
     ============================================================ */
  .pricing-bg {
    background: linear-gradient(180deg, transparent 0%, rgba(26,111,255,0.03) 50%, transparent 100%);
  }
  .pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: start;
  }
  .pricing-card {
    padding: 2.25rem 2rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    position: relative;
    transition: var(--transition);
  }
  .pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--border);
    box-shadow: var(--shadow-card);
  }
  .pricing-card.featured {
    border-color: var(--blue-core);
    background: linear-gradient(135deg, rgba(26,111,255,0.12), rgba(6,20,48,0.8));
    box-shadow: var(--shadow-blue);
    transform: scale(1.03);
  }
  .pricing-card.featured:hover { transform: scale(1.03) translateY(-4px); }
  .pricing-badge {
    position: absolute;
    top: -12px; left: 50%;
    transform: translateX(-50%);
    background: var(--blue-core);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.3rem 1rem;
    border-radius: 99px;
    white-space: nowrap;
    box-shadow: 0 0 16px rgba(26,111,255,0.5);
  }
  .pricing-plan {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--blue-bright);
    margin-bottom: 0.5rem;
  }
  .pricing-price {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 0.3rem;
  }
  .pricing-price sub {
    font-size: 1rem;
    font-weight: 500;
    vertical-align: super;
    color: var(--white-60);
  }
  .pricing-desc {
    font-size: 0.85rem;
    color: var(--white-60);
    margin-bottom: 1.75rem;
    line-height: 1.5;
  }
  .pricing-divider {
    height: 1px;
    background: var(--border-light);
    margin-bottom: 1.5rem;
  }
  .pricing-features { margin-bottom: 2rem; }
  .pricing-feature {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.45rem 0;
    font-size: 0.88rem;
    color: var(--white-90);
  }
  .pricing-feature i {
    color: var(--blue-bright);
    font-size: 0.75rem;
    flex-shrink: 0;
  }
  .pricing-feature.unavail { color: var(--white-30); }
  .pricing-feature.unavail i { color: var(--white-30); }
  .pricing-cta { width: 100%; justify-content: center; }
  
  /* ============================================================
     TESTIMONIALS
     ============================================================ */
  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .testimonial-card {
    padding: 2rem 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    transition: var(--transition);
  }
  .testimonial-card:hover {
    border-color: var(--border);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
  }
  .testimonial-stars {
    display: flex;
    gap: 0.2rem;
    margin-bottom: 1rem;
  }
  .testimonial-stars i { color: #f59e0b; font-size: 0.85rem; }
  .testimonial-text {
    font-size: 0.92rem;
    color: var(--white-60);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-style: italic;
  }
  .testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  .testimonial-avatar {
    width: 42px; height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-core), var(--blue-bright));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.9rem;
    color: #fff;
    flex-shrink: 0;
  }
  .testimonial-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--white);
  }
  .testimonial-company {
    font-size: 0.78rem;
    color: var(--blue-bright);
    font-family: var(--font-mono);
  }
  
  /* ============================================================
     FAQ
     ============================================================ */
  .faq-list { max-width: 760px; margin: 0 auto; }
  .faq-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: border-color 0.3s;
  }
  .faq-item.open { border-color: var(--border); }
  .faq-q {
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: none;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--white-90);
    background: var(--bg-card);
    transition: color 0.2s;
  }
  .faq-q:hover { color: var(--blue-bright); }
  .faq-item.open .faq-q { color: var(--blue-bright); }
  .faq-icon {
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: var(--white-60);
    flex-shrink: 0;
    transition: var(--transition);
  }
  .faq-item.open .faq-icon {
    border-color: var(--blue-core);
    color: var(--blue-bright);
    transform: rotate(45deg);
    background: var(--blue-dim);
  }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    background: var(--bg-card);
  }
  .faq-item.open .faq-a { max-height: 300px; }
  .faq-a-inner {
    padding: 0 1.5rem 1.25rem;
    font-size: 0.9rem;
    color: var(--white-60);
    line-height: 1.8;
  }
  
  /* ============================================================
     CONTACT
     ============================================================ */
  .contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 4rem;
    align-items: start;
  }
  .contact-info { }
  .contact-info-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.75rem;
  }
  .contact-info-desc {
    font-size: 0.92rem;
    color: var(--white-60);
    line-height: 1.7;
    margin-bottom: 2rem;
  }
  .contact-channels { margin-bottom: 2rem; }
  .contact-channel {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    margin-bottom: 0.75rem;
    transition: var(--transition);
    cursor: none;
  }
  .contact-channel:hover { border-color: var(--border); transform: translateX(4px); }
  .contact-channel-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
    background: var(--blue-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-bright);
    font-size: 1rem;
    flex-shrink: 0;
  }
  .contact-channel-label { font-size: 0.75rem; color: var(--white-60); }
  .contact-channel-val { font-size: 0.9rem; font-weight: 500; color: var(--white); }
  .contact-socials { display: flex; gap: 0.75rem; }
  .social-link {
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white-60);
    transition: var(--transition);
  }
  .social-link:hover { border-color: var(--blue-core); color: var(--blue-bright); background: var(--blue-dim); }
  .contact-form {
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
  }
  .form-row { margin-bottom: 1.25rem; }
  .form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--white-60);
    margin-bottom: 0.4rem;
  }
  .form-input, .form-textarea {
    width: 100%;
    background: var(--white-10);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    font-family: var(--font-body);
    font-size: 0.92rem;
    color: var(--white);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    resize: none;
  }
  .form-input::placeholder, .form-textarea::placeholder { color: var(--white-30); }
  .form-input:focus, .form-textarea:focus {
    border-color: var(--blue-core);
    box-shadow: 0 0 0 3px rgba(26,111,255,0.12);
  }
  .form-input.error, .form-textarea.error { border-color: #ef4444; }
  .form-error-msg {
    font-size: 0.78rem;
    color: #ef4444;
    margin-top: 0.3rem;
    display: none;
  }
  .form-error-msg.show { display: block; }
  .form-textarea { min-height: 130px; }
  .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .form-submit {
    width: 100%;
    justify-content: center;
    font-size: 1rem;
    padding: 1rem;
  }
  .form-success {
    display: none;
    padding: 1rem;
    border-radius: var(--radius-sm);
    background: rgba(34,197,94,0.1);
    border: 1px solid rgba(34,197,94,0.3);
    color: #4ade80;
    font-size: 0.9rem;
    text-align: center;
    margin-top: 1rem;
  }
  .form-success.show { display: block; }
  
  /* ============================================================
     WHATSAPP FAB
     ============================================================ */
  .whatsapp-fab {
    position: fixed;
    bottom: 2rem; right: 2rem;
    width: 56px; height: 56px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    z-index: 500;
    transition: var(--transition);
    animation: whatsapp-pulse 3s infinite;
  }
  .whatsapp-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37,211,102,0.6);
  }
  @keyframes whatsapp-pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.4); }
    50% { box-shadow: 0 4px 40px rgba(37,211,102,0.7); }
  }
  
  /* ============================================================
     FOOTER
     ============================================================ */
  footer {
    background: var(--bg-secondary);
    border-top: 1px solid transparent;
    border-image: linear-gradient(90deg, transparent, var(--blue-core), var(--blue-bright), var(--blue-core), transparent) 1;
    position: relative;
    overflow: hidden;
  }
  footer::before {
    content: '';
    position: absolute;
    top: 0; left: 50%; transform: translateX(-50%);
    width: 400px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--blue-core), transparent);
    box-shadow: 0 0 30px var(--blue-core);
  }
  .footer-inner {
    padding: 4rem 0 2rem;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
  }
  .footer-brand .nav-logo { margin-bottom: 0.75rem; display: block; }
  .footer-brand-desc {
    font-size: 0.88rem;
    color: var(--white-60);
    line-height: 1.7;
    margin-bottom: 1.25rem;
  }
  .footer-col-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1rem;
  }
  .footer-links { display: flex; flex-direction: column; gap: 0.6rem; }
  .footer-links a {
    font-size: 0.87rem;
    color: var(--white-60);
    transition: color 0.2s;
  }
  .footer-links a:hover { color: var(--blue-bright); }
  .footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .footer-copy {
    font-size: 0.83rem;
    color: var(--white-30);
  }
  .footer-copy span { color: var(--blue-bright); }
  .footer-socials { display: flex; gap: 0.6rem; }
  .footer-social {
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white-30);
    font-size: 0.85rem;
    transition: var(--transition);
  }
  .footer-social:hover { border-color: var(--blue-core); color: var(--blue-bright); }
  
  /* ============================================================
     BACK TO TOP
     ============================================================ */
  .back-top {
    position: fixed;
    bottom: 5.5rem; right: 2rem;
    width: 42px; height: 42px;
    border-radius: 50%;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white-60);
    z-index: 400;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
    pointer-events: none;
  }
  .back-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .back-top:hover { color: var(--blue-bright); border-color: var(--blue-core); }
  
  /* ============================================================
     PROGRESS BAR (top of page)
     ============================================================ */
  .progress-bar {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--blue-core), var(--blue-bright));
    z-index: 2000;
    width: 0%;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px var(--blue-core);
  }
  
  /* ============================================================
     FLOATING CODE SNIPPETS (ambient)
     ============================================================ */
  .ambient-code {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: rgba(26,111,255,0.12);
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    z-index: 0;
  }
  
  /* ============================================================
     RESPONSIVE
     ============================================================ */
  @media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    .pricing-card.featured { transform: none; }
    .pricing-card.featured:hover { transform: translateY(-4px); }
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
    .about-img-frame { max-width: 380px; }
    .about-img-wrap { display: flex; justify-content: center; }
    .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
    .hero-visual { justify-content: center; }
    .hero-code-window { max-width: 440px; }
    .contact-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  }
  @media (max-width: 768px) {
    .section { padding: 5rem 0; }
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .services-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: repeat(3, 1fr); }
    .hero-stats { gap: 1.5rem; }
    .hero-visual { display: none; }
    #cursor-dot, #cursor-ring { display: none; }
    body { cursor: auto; }
    button, a { cursor: pointer; }
  }
  @media (max-width: 480px) {
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .btn { width: 100%; justify-content: center; }
    .pricing-grid { max-width: 100%; }
    .about-stats { grid-template-columns: 1fr 1fr; }
  }
  
  /* ============================================================
     PREFERS REDUCED MOTION
     ============================================================ */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    .hero-code-window { animation: none; }
    .tech-badge { animation: none; }
    .whatsapp-fab { animation: none; }
  }