/*design tokens*/

:root {
    --bg:       #080810;
    --bg2:      #0d0d1a;
    --bg3:      #12121f;
    --purple:   #9b30ff;
    --purple2:  #7b1fff;
    --purple3:  #c27aff;
    --yellow:   #f5e642;
    --yellow2:  #ffd700;
    --yellow3:  #ffe57a;
    --black:    #050508;
    --white:    #e8e8ff;
    --dim:      #888aaa;
    --border:   rgba(155,48,255,0.35);
    --border2:  rgba(245,230,66,0.3);
    --glow-p:   0 0 20px rgba(155,48,255,0.6), 0 0 60px rgba(155,48,255,0.2);
    --glow-y:   0 0 20px rgba(245,230,66,0.6), 0 0 60px rgba(245,230,66,0.2);
    --glow-p2:  0 0 8px rgba(155,48,255,0.8);
    --font-h:   'Orbitron', monospace;
    --font-m:   'Share Tech Mono', monospace;
    --font-b:   'Rajdhani', sans-serif;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  /*reset*/
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--white);
    font-family: var(--font-b);
    font-size: 16px;
    overflow-x: hidden;
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; }
  input, textarea, button { font-family: inherit; }

  /*scanlines overlay*/
  body::after {
    content: '';
    position: fixed; inset: 0;
    background: repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0,0,0,0.07) 2px,
      rgba(0,0,0,0.07) 4px
    );
    pointer-events: none;
    z-index: 9990;
  }

  /*noise texture*/
  body::before {
    content: '';
    position: fixed; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9989;
    opacity: 0.3;
  }

  /*page system*/
  .page { display: none; min-height: 100vh; }
  .page.active { display: block; }

  /*nav*/
  nav {
    position: fixed; top: 0; left: 0; right: 0;
    height: 64px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 48px;
    background: rgba(8,8,16,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
  }
  .nav-logo {
    font-family: var(--font-h);
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--yellow);
    letter-spacing: 3px;
    text-shadow: var(--glow-y);
    cursor: pointer;
    user-select: none;
  }
  .nav-logo span { color: var(--yellow); }
  .nav-links { display: flex; gap: 32px; align-items: center; }
  .nav-link {
    font-family: var(--font-m);
    font-size: 0.75rem;
    color: var(--dim);
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
  }
  .nav-link::after {
    content: '';
    position: absolute; bottom: -4px; left: 0; right: 0;
    height: 1px;
    background: var(--yellow);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s;
  }
  .nav-link:hover, .nav-link.active { color: var(--yellow); }
  .nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
  .nav-auth {
    display: flex; gap: 12px;
  }
  .btn-ghost {
    font-family: var(--font-m);
    font-size: 0.72rem;
    letter-spacing: 2px;
    padding: 8px 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--purple3);
    cursor: pointer;
    text-transform: uppercase;
    transition: var(--transition);
    clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  }
  .btn-ghost:hover {
    border-color: var(--purple);
    color: var(--white);
    box-shadow: var(--glow-p2);
    background: rgba(155,48,255,0.1);
  }
  .btn-primary {
    font-family: var(--font-m);
    font-size: 0.72rem;
    letter-spacing: 2px;
    padding: 8px 20px;
    border: 1px solid var(--yellow2);
    background: var(--yellow);
    color: var(--black);
    cursor: pointer;
    text-transform: uppercase;
    font-weight: 700;
    transition: var(--transition);
    clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  }
  .btn-primary:hover {
    background: var(--yellow3);
    box-shadow: var(--glow-y);
    transform: translateY(-1px);
  }

  /*hero section*/
  #home {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 64px 0 0;
    position: relative;
    overflow: hidden;
  }
  .hero-grid-bg {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(155,48,255,0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(155,48,255,0.06) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridScroll 20s linear infinite;
  }
  @keyframes gridScroll {
    from { transform: translateY(0); }
    to { transform: translateY(50px); }
  }
  .hero-glow-1 {
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(155,48,255,0.15) 0%, transparent 70%);
    top: -100px; left: -100px;
    animation: pulse1 6s ease-in-out infinite;
  }
  .hero-glow-2 {
    position: absolute;
    width: 400px; height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245,230,66,0.1) 0%, transparent 70%);
    bottom: 0; right: 0;
    animation: pulse2 8s ease-in-out infinite;
  }
  @keyframes pulse1 {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
  }
  @keyframes pulse2 {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 1; }
  }
  .hero-content {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 80px;
  }
  .hero-tag {
    font-family: var(--font-m);
    font-size: 0.7rem;
    color: var(--yellow);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 12px;
    animation: fadeUp 0.8s ease both;
  }
  .hero-tag::before {
    content: '';
    display: inline-block;
    width: 40px; height: 1px;
    background: var(--yellow);
    box-shadow: var(--glow-y);
  }
  .hero-name {
    font-family: var(--font-h);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: 2px;
    margin-bottom: 12px;
    animation: fadeUp 0.8s 0.1s ease both;
  }
  .hero-name .line1 {
    color: var(--white);
    display: block;
    user-select: none;
  }
  .hero-name .line2 {
    color: transparent;
    -webkit-text-stroke: 1.5px var(--purple3);
    display: block;
    user-select: none;
  }
  .hero-role {
    font-family: var(--font-m);
    font-size: 1rem;
    color: var(--purple3);
    margin-bottom: 28px;
    letter-spacing: 2px;
    animation: fadeUp 0.8s 0.2s ease both;
  }
  .hero-role .cursor-blink {
    animation: blink 1s step-end infinite;
    color: var(--yellow);
  }
  @keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
  .hero-bio {
    font-size: 1.05rem;
    color: var(--dim);
    line-height: 1.7;
    max-width: 480px;
    margin-bottom: 40px;
    animation: fadeUp 0.8s 0.3s ease both;
  }
  .hero-bio strong { color: var(--white); font-weight: 600; }
  .hero-ctas {
    display: flex; gap: 16px; flex-wrap: wrap;
    animation: fadeUp 0.8s 0.4s ease both;
  }
  .cta-primary {
    font-family: var(--font-m);
    font-size: 0.8rem;
    letter-spacing: 2px;
    padding: 14px 32px;
    background: var(--yellow);
    color: var(--black);
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    font-weight: 700;
    clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }
  .cta-primary::before {
    content: '';
    position: absolute; top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
  }
  .cta-primary:hover::before { left: 100%; }
  .cta-primary:hover {
    box-shadow: var(--glow-y);
    transform: translateY(-2px);
  }
  .cta-secondary {
    font-family: var(--font-m);
    font-size: 0.8rem;
    letter-spacing: 2px;
    padding: 14px 32px;
    background: transparent;
    color: var(--purple3);
    border: 1px solid var(--border);
    cursor: pointer;
    text-transform: uppercase;
    clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
    transition: var(--transition);
  }
  .cta-secondary:hover {
    border-color: var(--purple);
    background: rgba(155,48,255,0.1);
    box-shadow: var(--glow-p2);
  }
  .hero-stats {
    display: flex; gap: 40px; margin-top: 48px;
    animation: fadeUp 0.8s 0.5s ease both;
  }
  .stat { text-align: center; }
  .stat-num {
    font-family: var(--font-h);
    font-size: 2rem;
    font-weight: 900;
    color: var(--yellow);
    text-shadow: var(--glow-y);
  }
  .stat-label {
    font-family: var(--font-m);
    font-size: 0.65rem;
    color: var(--dim);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 4px;
  }
  /* Hero avatar */
  .hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeUp 0.8s 0.2s ease both;
  }
  .avatar-frame {
    position: relative;
    width: 340px; height: 340px;
  }
  .avatar-hex {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--bg2), var(--bg3));
    border: 2px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    font-size: 8rem;
  }
  .avatar-hex::before {
    content: '';
    position: absolute; inset: -2px;
    background: linear-gradient(135deg, var(--purple), transparent, var(--yellow2));
    border-radius: 26px;
    z-index: -1;
    animation: rotateBorder 4s linear infinite;
  }
  @keyframes rotateBorder {
    from { filter: hue-rotate(0deg); }
    to { filter: hue-rotate(360deg); }
  }
  .avatar-corner {
    position: absolute;
    width: 20px; height: 20px;
    border-color: var(--yellow);
    border-style: solid;
  }
  .avatar-corner.tl { top: -4px; left: -4px; border-width: 2px 0 0 2px; }
  .avatar-corner.tr { top: -4px; right: -4px; border-width: 2px 2px 0 0; }
  .avatar-corner.bl { bottom: -4px; left: -4px; border-width: 0 0 2px 2px; }
  .avatar-corner.br { bottom: -4px; right: -4px; border-width: 0 2px 2px 0; }
  .avatar-badge {
    position: absolute;
    bottom: -16px; right: -16px;
    background: var(--yellow);
    color: var(--black);
    font-family: var(--font-h);
    font-size: 0.6rem;
    font-weight: 900;
    letter-spacing: 1px;
    padding: 6px 12px;
    clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
  }
  .floating-tag {
    position: absolute;
    background: rgba(13,13,26,0.9);
    border: 1px solid var(--border);
    padding: 8px 16px;
    font-family: var(--font-m);
    font-size: 0.7rem;
    color: var(--purple3);
    letter-spacing: 1px;
    animation: float 3s ease-in-out infinite;
  }
  .floating-tag.t1 { top: 20px; left: -60px; animation-delay: 0s; }
  .floating-tag.t2 { bottom: 60px; left: -40px; animation-delay: 1s; }
  .floating-tag.t3 { top: 60px; right: -50px; animation-delay: 2s; }
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
  }
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /*section base*/
  .section {
    padding: 100px 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 48px;
    padding-right: 48px;
  }
  .section-label {
    font-family: var(--font-m);
    font-size: 0.7rem;
    color: var(--yellow);
    letter-spacing: 5px;
    text-transform: uppercase;
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 16px;
  }
  .section-label::before {
    content: '';
    width: 50px; height: 1px;
    background: var(--yellow);
    box-shadow: var(--glow-y);
  }
  .section-title {
    font-family: var(--font-h);
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 60px;
    line-height: 1.1;
  }
  .section-title .accent { color: var(--purple3); }
  .section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 0;
  }

  /*about section*/
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
  }
  .about-text p {
    color: var(--dim);
    line-height: 1.8;
    font-size: 1.05rem;
    margin-bottom: 20px;
  }
  .about-text p strong { color: var(--white); }
  .about-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
  }
  .detail-item {
    background: var(--bg2);
    border: 1px solid var(--border);
    padding: 16px 20px;
    clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
    transition: var(--transition);
  }
  .detail-item:hover {
    border-color: var(--purple);
    background: rgba(155,48,255,0.05);
    transform: translateX(4px);
  }
  .detail-label {
    font-family: var(--font-m);
    font-size: 0.65rem;
    color: var(--yellow);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 4px;
  }
  .detail-value {
    font-size: 0.95rem;
    color: var(--white);
    font-weight: 600;
  }
  .service-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    padding: 28px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    clip-path: polygon(12px 0%, 100% 0%, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0% 100%, 0% 12px);
  }
  .service-card::before {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 3px; height: 0;
    background: var(--yellow);
    transition: height 0.3s;
  }
  .service-card:hover { border-color: var(--purple); transform: translateX(6px); }
  .service-card:hover::before { height: 100%; }
  .service-icon { font-size: 1.8rem; margin-bottom: 12px; }
  .service-title {
    font-family: var(--font-h);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
    margin-bottom: 8px;
  }
  .service-desc { font-size: 0.9rem; color: var(--dim); line-height: 1.6; }

  /*projects section*/
  .projects-filter {
    display: flex; gap: 12px; flex-wrap: wrap;
    margin-bottom: 48px;
  }
  .filter-btn {
    font-family: var(--font-m);
    font-size: 0.7rem;
    letter-spacing: 2px;
    padding: 8px 20px;
    background: transparent;
    color: var(--dim);
    border: 1px solid rgba(155,48,255,0.2);
    cursor: pointer;
    text-transform: uppercase;
    transition: var(--transition);
    clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
  }
  .filter-btn:hover, .filter-btn.active {
    border-color: var(--yellow);
    color: var(--yellow);
    background: rgba(245,230,66,0.05);
  }
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
  }
  .project-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    clip-path: polygon(16px 0%, 100% 0%, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0% 100%, 0% 16px);
  }
  .project-card:hover {
    border-color: var(--purple);
    transform: translateY(-6px);
    box-shadow: var(--glow-p);
  }
  .project-thumb {
    height: 200px;
    display: flex; align-items: center; justify-content: center;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
  }
  .project-thumb::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 40%, var(--bg2));
  }
  .project-thumb-bg1 { background: linear-gradient(135deg, #1a0a33, #33006a); }
  .project-thumb-bg2 { background: linear-gradient(135deg, #0a1a33, #003355); }
  .project-thumb-bg3 { background: linear-gradient(135deg, #1a1a00, #333300); }
  .project-thumb-bg4 { background: linear-gradient(135deg, #1a0033, #3d0066); }
  .project-thumb-bg5 { background: linear-gradient(135deg, #001a1a, #003333); }
  .project-thumb-bg6 { background: linear-gradient(135deg, #33001a, #660033); }
  .project-body { padding: 24px; }
  .project-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
  .project-tag {
    font-family: var(--font-m);
    font-size: 0.6rem;
    letter-spacing: 1px;
    padding: 3px 10px;
    color: var(--purple3);
    border: 1px solid var(--border);
    text-transform: uppercase;
  }
  .project-title {
    font-family: var(--font-h);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
    letter-spacing: 1px;
  }
  .project-desc { font-size: 0.9rem; color: var(--dim); line-height: 1.6; margin-bottom: 20px; }
  .project-links { display: flex; gap: 12px; }
  .project-link {
    font-family: var(--font-m);
    font-size: 0.65rem;
    letter-spacing: 2px;
    color: var(--yellow);
    text-transform: uppercase;
    display: flex; align-items: center; gap: 6px;
    cursor: pointer;
    transition: var(--transition);
  }
  .project-link:hover { color: var(--yellow3); text-shadow: var(--glow-y); }
  .project-status {
    position: absolute; top: 16px; right: 16px;
    font-family: var(--font-m);
    font-size: 0.6rem;
    letter-spacing: 2px;
    padding: 4px 10px;
    text-transform: uppercase;
    z-index: 1;
  }
  .status-live { background: rgba(0,255,100,0.15); color: #0f9; border: 1px solid rgba(0,255,100,0.3); }
  .status-dev  { background: rgba(245,230,66,0.15); color: var(--yellow); border: 1px solid rgba(245,230,66,0.3); }
  .status-wip  { background: rgba(155,48,255,0.15); color: var(--purple3); border: 1px solid var(--border); }

  /*skills section*/
  .skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }
  .skills-group-title {
    font-family: var(--font-m);
    font-size: 0.7rem;
    color: var(--yellow);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 28px;
    display: flex; align-items: center; gap: 12px;
  }
  .skills-group-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border2), transparent);
  }
  .skill-item { margin-bottom: 24px; }
  .skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
  }
  .skill-name {
    font-family: var(--font-b);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    letter-spacing: 1px;
  }
  .skill-pct {
    font-family: var(--font-m);
    font-size: 0.75rem;
    color: var(--purple3);
  }
  .skill-bar-track {
    height: 6px;
    background: rgba(155,48,255,0.12);
    position: relative;
    clip-path: polygon(4px 0%, 100% 0%, calc(100% - 4px) 100%, 0% 100%);
    overflow: hidden;
  }
  .skill-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--purple2), var(--purple3), var(--yellow));
    width: 0%;
    transition: width 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
  }
  .skill-bar-fill::after {
    content: '';
    position: absolute; right: -4px; top: 50%;
    transform: translateY(-50%);
    width: 8px; height: 8px;
    background: var(--yellow);
    border-radius: 50%;
    box-shadow: var(--glow-y);
  }
  .tech-cloud {
    display: flex; flex-wrap: wrap; gap: 10px;
    margin-top: 40px;
  }
  .tech-chip {
    font-family: var(--font-m);
    font-size: 0.68rem;
    letter-spacing: 1px;
    padding: 6px 14px;
    background: var(--bg2);
    border: 1px solid var(--border);
    color: var(--dim);
    text-transform: uppercase;
    cursor: default;
    transition: var(--transition);
    clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
  }
  .tech-chip:hover {
    border-color: var(--yellow);
    color: var(--yellow);
    background: rgba(245,230,66,0.05);
  }

  /*contact section*/
  .contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 80px;
    align-items: start;
  }
  .contact-info-title {
    font-family: var(--font-h);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: 1px;
  }
  .contact-info-sub {
    color: var(--dim);
    line-height: 1.7;
    font-size: 0.95rem;
    margin-bottom: 40px;
  }
  .contact-links { display: flex; flex-direction: column; gap: 16px; }
  .contact-link-item {
    display: flex; align-items: center; gap: 16px;
    padding: 16px 20px;
    background: var(--bg2);
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
    clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  }
  .contact-link-item:hover {
    border-color: var(--purple);
    background: rgba(155,48,255,0.07);
    transform: translateX(8px);
  }
  .contact-icon { font-size: 1.3rem; }
  .contact-link-label {
    font-family: var(--font-m);
    font-size: 0.65rem;
    color: var(--purple3);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 2px;
  }
  .contact-link-val { font-size: 0.9rem; color: var(--white); font-weight: 600; }
  /* Contact Form */
  .contact-form {
    background: var(--bg2);
    border: 1px solid var(--border);
    padding: 40px;
    clip-path: polygon(16px 0%, 100% 0%, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0% 100%, 0% 16px);
    position: relative;
  }
  .contact-form::before {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 0; height: 2px;
    background: linear-gradient(90deg, var(--purple), var(--yellow));
    transition: width 0.5s;
  }
  .contact-form:hover::before { width: 100%; }
  .form-group { margin-bottom: 24px; }
  .form-label {
    display: block;
    font-family: var(--font-m);
    font-size: 0.65rem;
    letter-spacing: 2px;
    color: var(--purple3);
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .form-input, .form-textarea {
    width: 100%;
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--border);
    border-radius: 0;
    color: var(--white);
    font-family: var(--font-b); 
    font-size: 0.95rem;
    padding: 12px 16px;
    outline: none;
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
    clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
  }
  .form-input:focus, .form-textarea:focus {
    border-color: var(--purple);
    box-shadow: var(--glow-p2);
    background: rgba(155,48,255,0.05);
  }
  .form-input::placeholder, .form-textarea::placeholder { color: rgba(136,138,170,0.5); }
  .form-textarea { min-height: 120px; resize: vertical; }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .form-submit {
    width: 100%;
    padding: 16px;
    background: var(--yellow);
    color: var(--black);
    border: none;
    font-family: var(--font-h);
    font-size: 0.8rem;
    font-weight: 900;
    letter-spacing: 3px;
    text-transform: uppercase;
    cursor: pointer;
    clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }
  .form-submit:hover {
    box-shadow: var(--glow-y);
    background: var(--yellow3);
    transform: translateY(-2px);
  }
  .form-success {
    display: none;
    text-align: center;
    padding: 16px;
    background: rgba(0,255,100,0.1);
    border: 1px solid rgba(0,255,100,0.3);
    color: #0f9;
    font-family: var(--font-m);
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-top: 16px;
  }
  .form-success.show { display: block; }

  /*footer*/
  footer {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    padding: 40px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
  }
  .footer-logo {
    font-family: var(--font-h);
    font-size: 1rem;
    font-weight: 900;
    color: var(--yellow);
    letter-spacing: 3px;
    text-shadow: var(--glow-y);
  }
  .footer-logo span { color: var(--purple3); }
  .footer-copy {
    font-family: var(--font-m);
    font-size: 0.65rem;
    color: var(--dim);
    letter-spacing: 2px;
    text-align: center;
  }
  .footer-socials { display: flex; gap: 16px; }
  .social-btn {
    width: 36px; height: 36px;
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
  }
  .social-btn:hover {
    border-color: var(--yellow);
    background: rgba(245,230,66,0.1);
    box-shadow: var(--glow-y);
    transform: translateY(-3px);
  }

  /*auth pages*/
  .auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--bg);
  }
  .auth-bg-grid {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(155,48,255,0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(155,48,255,0.05) 1px, transparent 1px);
    background-size: 40px 40px;
  }
  .auth-bg-glow1 {
    position: absolute;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(155,48,255,0.2) 0%, transparent 70%);
    top: -150px; left: -100px;
    animation: pulse1 7s ease-in-out infinite;
  }
  .auth-bg-glow2 {
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(245,230,66,0.12) 0%, transparent 70%);
    bottom: -100px; right: -100px;
    animation: pulse2 9s ease-in-out infinite;
  }
  .auth-card {
    position: relative;
    width: 460px;
    background: rgba(13,13,26,0.95);
    border: 1px solid var(--border);
    padding: 0;
    backdrop-filter: blur(20px);
    clip-path: polygon(20px 0%, 100% 0%, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0% 100%, 0% 20px);
    animation: slideIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
  }
  @keyframes slideIn {
    from { opacity: 0; transform: translateY(30px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }
  .auth-card::before {
    content: '';
    position: absolute; top: 0; left: 20px; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--purple), var(--yellow));
  }
  .auth-header {
    padding: 36px 40px 28px;
    border-bottom: 1px solid var(--border);
  }
  .auth-brand {
    font-family: var(--font-h);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--yellow);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 20px;
    text-shadow: var(--glow-y);
  }
  .auth-title {
    font-family: var(--font-h);
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--white);
    margin-bottom: 6px;
  }
  .auth-sub {
    font-family: var(--font-m);
    font-size: 0.75rem;
    color: var(--dim);
    letter-spacing: 1px;
  }
  .auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
  }
  .auth-tab {
    flex: 1;
    padding: 16px;
    text-align: center;
    font-family: var(--font-m);
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--dim);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    background: transparent;
    border-top: none;
    border-left: none;
    border-right: none;
  }
  .auth-tab.active {
    color: var(--yellow);
    border-bottom-color: var(--yellow);
    background: rgba(245,230,66,0.04);
  }
  .auth-tab:hover:not(.active) { color: var(--purple3); border-bottom-color: var(--purple3); }
  .auth-body { padding: 36px 40px; }
  .auth-form-panel { display: none; }
  .auth-form-panel.active { display: block; }
  .auth-form-group { margin-bottom: 20px; }
  .auth-label {
    display: block;
    font-family: var(--font-m);
    font-size: 0.62rem;
    letter-spacing: 2.5px;
    color: var(--purple3);
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .auth-input {
    width: 100%;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--border);
    color: var(--white);
    font-family: var(--font-b);
    font-size: 0.95rem;
    padding: 13px 16px;
    outline: none;
    transition: var(--transition);
    clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
  }
  .auth-input:focus {
    border-color: var(--purple);
    box-shadow: 0 0 0 1px rgba(155,48,255,0.3), var(--glow-p2);
    background: rgba(155,48,255,0.06);
  }
  .auth-input::placeholder { color: rgba(136,138,170,0.4); }
  .auth-options {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 24px;
  }
  .auth-remember {
    display: flex; align-items: center; gap: 8px;
    font-family: var(--font-m);
    font-size: 0.7rem;
    color: var(--dim);
    cursor: pointer;
    letter-spacing: 1px;
  }
  .auth-remember input[type="checkbox"] {
    accent-color: var(--yellow);
    width: 14px; height: 14px;
    cursor: pointer;
  }
  .auth-forgot {
    font-family: var(--font-m);
    font-size: 0.68rem;
    color: var(--purple3);
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    background: none; border: none;
  }
  .auth-forgot:hover { color: var(--yellow); }
  .auth-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(90deg, var(--purple2), var(--purple));
    color: var(--white);
    border: none;
    font-family: var(--font-h);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    cursor: pointer;
    clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    margin-bottom: 16px;
  }
  .auth-submit::before {
    content: '';
    position: absolute; top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s;
  }
  .auth-submit:hover::before { left: 100%; }
  .auth-submit:hover {
    box-shadow: var(--glow-p);
    transform: translateY(-2px);
  }
  .auth-divider {
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 16px;
  }
  .auth-divider::before, .auth-divider::after {
    content: '';
    flex: 1; height: 1px;
    background: var(--border);
  }
  .auth-divider span {
    font-family: var(--font-m);
    font-size: 0.62rem;
    color: var(--dim);
    letter-spacing: 2px;
    text-transform: uppercase;
  }
  .auth-alt-btn {
    width: 100%;
    padding: 12px;
    background: transparent;
    color: var(--yellow);
    border: 1px solid var(--border2);
    font-family: var(--font-m);
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
    transition: var(--transition);
  }
  .auth-alt-btn:hover {
    border-color: var(--yellow);
    background: rgba(245,230,66,0.07);
    box-shadow: var(--glow-y);
  }
  .auth-msg {
    margin-top: 14px;
    font-family: var(--font-m);
    font-size: 0.65rem;
    text-align: center;
    color: var(--dim);
    letter-spacing: 1px;
  }
  .auth-msg span { color: var(--purple3); cursor: pointer; }
  .auth-msg span:hover { color: var(--yellow); }
  .auth-footer-link {
    padding: 20px 40px;
    border-top: 1px solid var(--border);
    text-align: center;
  }
  .back-link {
    font-family: var(--font-m);
    font-size: 0.68rem;
    color: var(--dim);
    letter-spacing: 2px;
    cursor: pointer;
    display: inline-flex; align-items: center; gap: 8px;
    transition: var(--transition);
    background: none; border: none;
    text-transform: uppercase;
  }
  .back-link:hover { color: var(--yellow); }
  .auth-strength {
    margin-top: 8px;
    display: flex; gap: 4px; align-items: center;
  }
  .strength-bar {
    flex: 1; height: 3px;
    background: rgba(155,48,255,0.1);
    transition: background 0.3s;
    clip-path: polygon(2px 0%, 100% 0%, calc(100% - 2px) 100%, 0% 100%);
  }
  .strength-label {
    font-family: var(--font-m);
    font-size: 0.6rem;
    letter-spacing: 1px;
    color: var(--dim);
    min-width: 40px;
    text-align: right;
  }
  .auth-notification {
    display: none;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-family: var(--font-m);
    font-size: 0.7rem;
    letter-spacing: 1px;
  }
  .auth-notification.error {
    display: flex; align-items: center; gap: 8px;
    background: rgba(255,50,50,0.1);
    border: 1px solid rgba(255,50,50,0.3);
    color: #ff5555;
  }
  .auth-notification.success {
    display: flex; align-items: center; gap: 8px;
    background: rgba(0,255,100,0.1);
    border: 1px solid rgba(0,255,100,0.3);
    color: #0f9;
  }

  /*scroll reveal*/
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /*glitch effect*/
  .glitch {
    position: relative;
    animation: glitch 8s infinite;
  }
  @keyframes glitch {
    0%, 90%, 100% { text-shadow: none; }
    91% { text-shadow: 2px 0 var(--purple), -2px 0 var(--yellow); }
    92% { text-shadow: -2px 0 var(--purple), 2px 0 var(--yellow); }
    93% { text-shadow: none; }
    94% { text-shadow: 2px 2px var(--purple), -2px -2px var(--yellow); }
    95% { text-shadow: none; }
  }

  /*mobile*/
  @media (max-width: 900px) {
    nav { padding: 0 20px; }
    .nav-links { display: none; }
    .hero-content { grid-template-columns: 1fr; gap: 40px; padding: 0 20px; }
    .hero-visual { display: none; }
    .section { padding: 60px 20px; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .skills-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .form-row { grid-template-columns: 1fr; }
    footer { flex-direction: column; gap: 20px; text-align: center; }
    .auth-card { width: 95%; margin: 20px; }
    .auth-body { padding: 28px 24px; }
    .auth-header { padding: 28px 24px; }
    .projects-grid { grid-template-columns: 1fr; }
  }