/* Root Variables */
:root{
    --bg-primary:#0a0a0a;
    --bg-secondary:#111111;
    --bg-tertiary:#1a1a1a;
    --text-primary:#ffffff;
    --text-secondary:#a0a0a0;
    --text-tertiary:#666666;
    --accent-primary:#ffffff;
    --accent-secondary:#f0f0f0;
    --glass-bg:rgba(255,255,255,0.05);
    --glass-border:rgba(255,255,255,0.1);
    --glass-hover:rgba(255,255,255,0.08);
    --shadow-light:rgba(255,255,255,0.1);
    --shadow-dark:rgba(0,0,0,0.3);
  }
  
  *{margin:0;padding:0;box-sizing:border-box}
  body{
    font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
    background:radial-gradient(ellipse at center,var(--bg-secondary) 0%,var(--bg-primary) 100%);
    color:var(--text-primary);
    line-height:1.6;
    overflow-x:hidden;
    scroll-behavior:smooth;
    min-height:100vh;
  }
  
  /* Subtle background pattern */
  body::before{
    content:'';
    position:fixed;inset:0;
    background:
      radial-gradient(circle at 20% 50%,rgba(255,255,255,0.02) 0%,transparent 50%),
      radial-gradient(circle at 80% 20%,rgba(255,255,255,0.015) 0%,transparent 50%),
      radial-gradient(circle at 40% 80%,rgba(255,255,255,0.01) 0%,transparent 50%);
    z-index:-2;
    animation:subtle-drift 30s ease-in-out infinite alternate;
  }
  @keyframes subtle-drift{
    0%{transform:translateY(0)}
    100%{transform:translateY(-10px)}
  }
  
  /* Floating particles */
  .particle{
    position:fixed;width:2px;height:2px;
    background:var(--accent-primary);border-radius:50%;
    pointer-events:none;opacity:.3;z-index:0;
    animation:float-particle 20s linear infinite;
  }
  @keyframes float-particle{
    0%{opacity:0;transform:translateY(100vh) translateX(0)}
    10%,90%{opacity:.3}
    100%{opacity:0;transform:translateY(-10vh) translateX(50px)}
  }
  
  /* Login Overlay */
  .login-overlay{
    position:fixed;inset:0;height:100vh;width:100%;
    background:radial-gradient(ellipse at center,#1a1a1a 0%,#0a0a0a 100%);
    z-index:10000;display:flex;align-items:center;justify-content:center;
    transition:opacity 1s cubic-bezier(0.4,0,0.2,1), visibility 1s;
  }
  .login-overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}
  .login-orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.15;animation:float 20s infinite ease-in-out}
  .login-orb1{width:400px;height:400px;background:radial-gradient(circle,rgba(255,255,255,0.2) 0%,transparent 70%);top:-200px;left:-200px;animation-delay:0s}
  .login-orb2{width:500px;height:500px;background:radial-gradient(circle,rgba(255,255,255,0.15) 0%,transparent 70%);bottom:-250px;right:-250px;animation-delay:5s}
  .login-orb3{width:350px;height:350px;background:radial-gradient(circle,rgba(255,255,255,0.1) 0%,transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);animation-delay:10s}
  @keyframes float{
    0%,100%{transform:translate(0,0) scale(1)}
    25%{transform:translate(100px,-100px) scale(1.1)}
    50%{transform:translate(-100px,100px) scale(.9)}
    75%{transform:translate(50px,50px) scale(1.05)}
  }
  .login-container{
    width:420px;padding:60px 50px;background:rgba(255,255,255,0.03);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    border-radius:24px;border:1px solid rgba(255,255,255,0.1);
    box-shadow:0 8px 32px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,.1);
    position:relative;z-index:10;opacity:0;animation:fadeInScale .8s ease forwards;animation-delay:.3s;
  }
  @keyframes fadeInScale{from{opacity:0;transform:scale(.9) translateY(20px)} to{opacity:1;transform:scale(1) translateY(0)}}
  .profile-section{text-align:center;margin-bottom:40px}
  .profile-picture{
    width:100px;height:100px;border-radius:50%;
    background:linear-gradient(135deg,rgba(255,255,255,.1),rgba(255,255,255,.05));
    display:flex;align-items:center;justify-content:center;margin:0 auto 20px;
    box-shadow:0 10px 40px rgba(0,0,0,.3), inset 0 1px 0 rgba(255,255,255,.1);
    position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.1);
  }
  .profile-picture::before{
    content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
    background:linear-gradient(45deg,transparent,rgba(255,255,255,.05),transparent);
    animation:shimmer 3s infinite;
  }
  @keyframes shimmer{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}
  .profile-initials{font-size:36px;font-weight:600;color:var(--text-primary);text-shadow:0 2px 4px rgba(0,0,0,.3)}
  .user-name{font-size:18px;font-weight:500;color:var(--text-primary);margin-top:12px;letter-spacing:.3px}
  .input-group{margin-bottom:24px;position:relative}
  .input-field{
    width:100%;padding:16px 20px;background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);border-radius:12px;color:var(--text-primary);
    font-size:15px;transition:.3s ease;outline:none;
  }
  .input-field::placeholder{color:rgba(255,255,255,.3)}
  .input-field:focus{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.15);box-shadow:0 0 0 4px rgba(255,255,255,.05),0 4px 20px rgba(0,0,0,.2)}
  .login-button{
    width:100%;padding:16px;background:linear-gradient(135deg,rgba(255,255,255,.1),rgba(255,255,255,.05));
    border:1px solid rgba(255,255,255,.1);border-radius:12px;color:var(--text-primary);
    font-size:16px;font-weight:600;letter-spacing:.5px;cursor:not-allowed;transition:.4s ease;
    box-shadow:0 4px 15px rgba(0,0,0,.2), inset 0 1px 0 rgba(255,255,255,.1);
    opacity:0;transform:translateY(10px);position:relative;overflow:hidden;
  }
  .login-button.show{opacity:.5;transform:translateY(0)}
  .login-button.active{opacity:1;cursor:pointer;background:linear-gradient(135deg,rgba(255,255,255,.15),rgba(255,255,255,.08))}
  .login-button.active:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.3), inset 0 1px 0 rgba(255,255,255,.2);border-color:rgba(255,255,255,.2)}
  .login-button::before{content:'';position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:rgba(255,255,255,.1);transform:translate(-50%,-50%);transition:width .6s,height .6s}
  .login-button.active:active::before{width:300px;height:300px}
  .remember-forgot{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;font-size:13px}
  .remember-me{display:flex;align-items:center;color:var(--text-secondary)}
  .remember-me input[type="checkbox"]{margin-right:8px;width:16px;height:16px;accent-color:var(--text-primary)}
  .forgot-password{color:var(--text-secondary);text-decoration:none;transition:color .3s ease}
  .forgot-password:hover{color:var(--text-primary)}
  
  /* Portfolio visibility toggle */
  .portfolio-content{opacity:0;visibility:hidden;transition:opacity 1s ease, visibility 1s}
  .portfolio-content.active{opacity:1;visibility:visible}
  
  /* Header */
  .header{
    position:fixed;left:0;right:0;top:0;padding:1rem 2rem;
    background:rgba(10,10,10,.8);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--glass-border);z-index:1000;transition:all .3s ease;
  }
  .nav-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
  .logo{font-size:1.5rem;font-weight:600;color:var(--text-primary);letter-spacing:-.02em}
  
  /* Nav */
  .nav-links{display:flex;gap:.5rem;list-style:none}
  .nav-links a{
    color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:.9rem;
    padding:.8rem 1rem;position:relative;transition:all .3s ease;display:flex;align-items:center;justify-content:center;border-radius:12px;cursor:pointer;background:var(--glass-bg);border:1px solid transparent;backdrop-filter:blur(10px)
  }
  .nav-links a .nav-text{
    position:absolute;bottom:-35px;left:50%;transform:translateX(-50%);
    background:var(--bg-tertiary);color:var(--text-primary);padding:.4rem .8rem;border-radius:6px;font-size:.75rem;white-space:nowrap;opacity:0;pointer-events:none;transition:all .3s ease;border:1px solid var(--glass-border)
  }
  .nav-links a:hover,.nav-links a.active{color:var(--text-primary);background:var(--glass-hover);border-color:var(--glass-border);transform:translateY(-1px)}
  .nav-links a:hover .nav-text{opacity:1;bottom:-40px}
  
  /* Main layout */
  main{padding-top:80px}
  .section{
    min-height:100vh;padding:4rem 2rem;display:flex;justify-content:center;align-items:center;flex-direction:column;max-width:1200px;margin:0 auto;position:relative
  }
  .section-title{
    font-size:2.5rem;font-weight:700;color:var(--text-primary);margin-bottom:3rem;text-align:center;letter-spacing:-.02em;position:relative
  }
  .section-title::after{
    content:'';position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);width:60px;height:2px;background:linear-gradient(90deg,transparent,var(--accent-primary),transparent);border-radius:1px
  }
  
  /* Glass card */
  .glass-card{
    background:var(--glass-bg);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:16px;padding:2rem;transition:all .3s ease;position:relative;overflow:hidden
  }
  .glass-card:hover{transform:translateY(-4px);background:var(--glass-hover);border-color:rgba(255,255,255,.15);box-shadow:0 12px 40px var(--shadow-dark), inset 0 1px 0 var(--shadow-light)}
  
  /* Welcome */
  .welcome-container{display:flex;align-items:center;justify-content:center;min-height:70vh;text-align:center}
  .welcome-content{
    max-width:700px;padding:3rem;background:var(--glass-bg);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:24px;
    box-shadow:0 8px 32px var(--shadow-dark), inset 0 1px 0 var(--shadow-light)
  }
  .welcome-content h1{font-size:3rem;font-weight:700;margin-bottom:1.5rem;color:var(--text-primary);letter-spacing:-.02em;line-height:1.1}
  .welcome-subtitle{font-size:1.1rem;color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6}
  
  /* Experience */
  .experience-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:1.5rem;width:100%}
  .experience-card h3{color:var(--text-primary);font-size:1.3rem;font-weight:600;margin-bottom:.5rem}
  .experience-card .company{color:var(--text-secondary);font-weight:500;margin-bottom:.5rem}
  .experience-card .date{color:var(--text-tertiary);font-size:.9rem;margin-bottom:1rem}
  
  /* Skills */
  .skills-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;width:100%}
  .skill-category h3{color:var(--text-primary);margin-bottom:1.5rem;font-size:1.2rem;font-weight:600;text-align:center}
  .skill-badges{display:flex;flex-wrap:wrap;gap:.8rem;justify-content:center}
  .skill-badge{
    background:rgba(255,255,255,.08);color:var(--text-primary);padding:.6rem 1.2rem;border-radius:20px;font-size:.85rem;font-weight:500;border:1px solid rgba(255,255,255,.1);transition:all .3s ease
  }
  .skill-badge:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
  
  /* Projects */
  .projects-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:2rem;width:100%}
  .project-box{position:relative;height:400px;display:flex;justify-content:center;align-items:center}
  .project-content{
    position:relative;padding:2rem;background:var(--glass-bg);backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:16px;z-index:1;transition:.4s ease;color:var(--text-primary);overflow:hidden;max-height:320px
  }
  .project-content h3{font-size:1.5rem;color:var(--text-primary);margin-bottom:1rem;font-weight:600}
  .project-link{
    display:inline-block;background:rgba(255,255,255,.1);color:var(--text-primary);padding:.8rem 1.5rem;border-radius:8px;text-decoration:none;font-weight:500;margin-top:1rem;margin-right:1rem;transition:all .3s ease;border:1px solid rgba(255,255,255,.2)
  }
  .project-link:hover{background:rgba(255,255,255,.15);transform:translateY(-2px)}
  .expand-btn{margin-top:1rem;padding:.6rem 1rem;border-radius:8px;border:1px solid var(--glass-border);background:var(--glass-bg);color:var(--text-primary);cursor:pointer}
  .expand-btn:hover{background:var(--glass-hover)}
  
  /* Library */
  .library-container{width:100%}
  .library-intro{margin-bottom:1rem}
  .library-filters{display:flex;gap:.6rem;flex-wrap:wrap;margin:1rem 0}
  .filter-btn{
    border:1px solid var(--glass-border);background:var(--glass-bg);color:var(--text-primary);
    padding:.5rem 1rem;border-radius:999px;cursor:pointer;transition:.2s
  }
  .filter-btn.active{background:var(--glass-hover)}
  .library-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;width:100%}
  .book-card .book-icon{font-size:1.4rem;margin-bottom:.5rem}
  .book-status{display:inline-block;margin-top:.5rem;padding:.2rem .5rem;border-radius:6px;border:1px solid var(--glass-border);font-size:.75rem}
  .book-status.reading{background:rgba(0,128,255,.12)}
  .book-status.next{background:rgba(255,166,0,.12)}
  .book-status.completed{background:rgba(0,255,128,.12)}
  .book-status.reference{background:rgba(255,255,255,.08)}
  
  /* Reading stats */
  .reading-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:1rem}
  .stat-card{text-align:center}
  .stat-number{font-size:2rem;font-weight:700}
  .stat-label{color:var(--text-secondary)}
  
  /* Blog */
  .blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1.25rem;width:100%}
  .blog-card{cursor:pointer;overflow:hidden;padding:0}
  .blog-image{height:180px;background-size:cover;background-position:center;position:relative}
  .blog-image-icon{position:absolute;bottom:10px;right:10px;font-size:1.4rem;background:var(--glass-bg);padding:.4rem .6rem;border-radius:8px;border:1px solid var(--glass-border)}
  .blog-content{padding:1.2rem}
  .blog-title{margin-bottom:.5rem}
  .blog-excerpt{color:var(--text-secondary)}
  .blog-meta{display:flex;justify-content:space-between;align-items:center;margin-top:.75rem}
  
  /* Blog side panel */
  .blog-side-panel-backdrop{
    position:fixed;inset:0;background:rgba(0,0,0,.5);opacity:0;visibility:hidden;transition:.3s;z-index:999
  }
  .blog-side-panel{
    position:fixed;top:0;right:0;height:100vh;width:min(680px,100%);background:var(--bg-tertiary);
    border-left:1px solid var(--glass-border);transform:translateX(100%);transition:.35s ease;z-index:1000;display:flex;flex-direction:column
  }
  .blog-side-panel.open{transform:translateX(0)}
  .blog-side-panel-backdrop.open{opacity:1;visibility:visible}
  .blog-panel-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1px solid var(--glass-border);background:rgba(0,0,0,.2);backdrop-filter:blur(10px)}
  .blog-close-btn{font-size:2rem;line-height:1;background:transparent;border:none;color:var(--text-primary);cursor:pointer}
  .blog-panel-content{padding:1.25rem 1.5rem;overflow:auto}
  .blog-panel-meta{color:var(--text-secondary);margin-bottom:1rem}
  
  /* Contact */
  .contact-container{max-width:600px;width:100%;text-align:center}
  .contact-info h3{color:var(--text-primary);font-size:1.8rem;margin-bottom:1rem;font-weight:600}
  .contact-links{display:flex;justify-content:center;gap:1.5rem;flex-wrap:wrap}
  .contact-link{display:flex;align-items:center;gap:.8rem;color:var(--text-primary);text-decoration:none;padding:1rem 1.5rem;background:var(--glass-bg);border-radius:12px;border:1px solid var(--glass-border);transition:.3s}
  .contact-link:hover{background:var(--glass-hover);transform:translateY(-2px)}
  
  /* Copyright Text*/ 
  .copyright-title {
    color: #ffffff;
    text-align: center;
    font-size: 12px;
    margin: 20px 0 10px 0;
  }

  /* Responsive */
  @media (max-width:768px){
    .login-container{width:90%;padding:40px 30px}
    .nav-links{flex-wrap:wrap}
    .section-title{font-size:2rem}
    .projects-container,.experience-grid,.skills-container{grid-template-columns:1fr}
  }