:root{--background-primary:#111827;--background-secondary:#1f2937;--text-primary:#ffffff;--text-secondary:#9ca3af;--text-muted:#6b7280;--border-primary:#374151;--border-secondary:#4b5563;--accent-blue:#3b82f6;--accent-purple:#8b5cf6;--accent-green:#10b981;--gradient-primary:linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);--gradient-secondary:linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);--gradient-ai:linear-gradient(45deg, #3b82f6, #6366f1, #8b5cf6, #10b981);--shadow-glow:0 0 40px rgba(59, 130, 246, 0.3);--shadow-card:0 25px 50px -12px rgba(17, 24, 39, 0.4)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;background:radial-gradient(circle at 20% 80%,rgba(59,130,246,.1) 0,transparent 50%),radial-gradient(circle at 80% 20%,rgba(139,92,246,.1) 0,transparent 50%),radial-gradient(circle at 40% 40%,rgba(99,102,241,.05) 0,transparent 50%),#111827;min-height:100vh;overflow-x:hidden;color:var(--text-primary)}.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(17,24,39,.8);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-primary);transition:all .3s ease}.header-container{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:70px}.logo{font-size:24px;font-weight:800;color:var(--text-primary);text-decoration:none;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-20px) rotate(2deg)}}@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes pulse{0%,100%{transform:scale(1);opacity:.8}50%{transform:scale(1.05);opacity:1}}@keyframes gradient{0%{background-position:0 50%}50%{background-position:100% 50%}100%{background-position:0 50%}}.auth-container{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:40px 20px}.auth-card{width:100%;max-width:450px;background:rgba(31,41,55,.6);border:1px solid rgba(55,65,81,.5);backdrop-filter:blur(16px);border-radius:16px;padding:40px;box-shadow:var(--shadow-card);animation:fadeIn .6s ease-out}.auth-logo{display:flex;justify-content:center;margin-bottom:32px}.auth-title{font-size:24px;font-weight:700;text-align:center;margin-bottom:16px;color:var(--text-primary)}.auth-subtitle{font-size:16px;text-align:center;margin-bottom:32px;color:var(--text-secondary)}.auth-form .form-group{margin-bottom:24px}.auth-form label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.auth-form input{width:100%;padding:12px 16px;border:1px solid var(--border-primary);background:rgba(17,24,39,.5);border-radius:8px;font-size:16px;color:var(--text-primary);transition:all .3s ease}.auth-form input:focus{outline:0;border-color:var(--accent-blue);box-shadow:0 0 0 2px rgba(59,130,246,.3)}.btn-primary{display:block;width:100%;padding:12px 24px;background:var(--gradient-primary);border:none;border-radius:8px;font-size:16px;font-weight:600;color:#fff;cursor:pointer;transition:all .3s ease;text-align:center;text-decoration:none;box-shadow:var(--shadow-glow);margin-top:16px}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(59,130,246,.5)}.auth-links{margin-top:24px;text-align:center}.auth-link{color:var(--accent-blue);text-decoration:none;font-size:14px;transition:all .3s ease}.auth-link:hover{text-decoration:underline}.auth-divider{display:flex;align-items:center;margin:24px 0;color:var(--text-muted)}.auth-divider::after,.auth-divider::before{content:"";flex:1;height:1px;background:var(--border-primary)}.auth-divider span{padding:0 16px;font-size:14px}.social-buttons{display:flex;gap:16px;margin-top:24px}.btn-social{flex:1;display:flex;align-items:center;justify-content:center;padding:10px;background:rgba(31,41,55,.7);border:1px solid var(--border-primary);border-radius:8px;cursor:pointer;transition:all .3s ease}.btn-social:hover{background:rgba(31,41,55,.9);transform:translateY(-2px)}.btn-social img{width:24px;height:24px}@media (max-width:576px){.auth-card{padding:24px}.auth-title{font-size:20px}.auth-subtitle{font-size:14px}}