:root{--primary-color: #6366f1;--primary-hover: #5855eb;--text-primary: #1f2937;--text-secondary: #6b7280;--text-muted: #9ca3af;--background: #ffffff;--surface: #f9fafb;--border: #e5e7eb;--border-focus: #6366f1;--shadow: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, .25);--radius: 12px;--transition: all .2s cubic-bezier(.4, 0, .2, 1)}@media (prefers-color-scheme: dark){:root{--primary-color: #818cf8;--primary-hover: #6366f1;--text-primary: #f9fafb;--text-secondary: #d1d5db;--text-muted: #9ca3af;--background: #111827;--surface: #1f2937;--border: #374151;--border-focus: #818cf8}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:var(--text-primary);background-color:var(--background);transition:var(--transition)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem;background:linear-gradient(135deg,var(--surface) 0%,var(--background) 100%)}.login-card{width:100%;max-width:400px;background:var(--background);border-radius:var(--radius);box-shadow:var(--shadow);padding:2rem;border:1px solid var(--border);transition:var(--transition);opacity:.9}.login-card:hover{box-shadow:var(--shadow-lg);opacity:1}.login-header{text-align:center;margin-bottom:2rem}.login-title{font-size:1.875rem;font-weight:700;color:var(--text-primary);margin-bottom:.5rem;letter-spacing:-.025em}.login-subtitle{color:var(--text-secondary);font-size:.875rem}.login-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-label{font-size:.875rem;font-weight:500;color:var(--text-primary)}.form-input{width:100%;padding:.75rem 1rem;border:1px solid var(--border);border-radius:calc(var(--radius) - 4px);font-size:.875rem;background-color:var(--background);color:var(--text-primary);transition:var(--transition)}.form-input:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px #6366f11a}.form-input::-moz-placeholder{color:var(--text-muted)}.form-input::placeholder{color:var(--text-muted)}.form-options{display:flex;justify-content:space-between;align-items:center;font-size:.875rem}.checkbox-container{display:flex;align-items:center;gap:.5rem;cursor:pointer}.checkbox{width:1rem;height:1rem;accent-color:var(--primary-color)}.checkbox-label{color:var(--text-secondary);-webkit-user-select:none;-moz-user-select:none;user-select:none}.forgot-password{color:var(--primary-color);text-decoration:none;font-weight:500;transition:var(--transition)}.forgot-password:hover{color:var(--primary-hover);text-decoration:underline}.login-button{width:100%;padding:.75rem 1rem;background-color:var(--primary-color);color:#fff;border:none;border-radius:calc(var(--radius) - 4px);font-size:.875rem;font-weight:600;cursor:pointer;transition:var(--transition);position:relative;overflow:hidden}.login-button:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #6366f166}.login-button:active{transform:translateY(0)}.login-button:disabled{opacity:.7;cursor:not-allowed;transform:none}.login-button.loading{color:transparent}.login-button.loading:after{content:"";position:absolute;top:50%;left:50%;width:1rem;height:1rem;margin:-.5rem 0 0 -.5rem;border:2px solid transparent;border-top:2px solid white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.login-footer{margin-top:2rem;text-align:center}.signup-text{font-size:.875rem;color:var(--text-secondary)}.signup-link{color:var(--primary-color);text-decoration:none;font-weight:500;transition:var(--transition)}.signup-link:hover{color:var(--primary-hover);text-decoration:underline}@media (max-width: 480px){.login-container{padding:.5rem}.login-card{padding:1.5rem;margin:.5rem}.login-title{font-size:1.5rem}.form-options{flex-direction:column;gap:1rem;align-items:flex-start}}@media (max-width: 320px){.login-card{padding:1rem}.login-title{font-size:1.25rem}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-card{animation:fadeInUp .6s ease-out}.form-input:hover{border-color:var(--text-muted)}.checkbox-container:hover .checkbox-label{color:var(--text-primary)}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.login-button:focus-visible,.form-input:focus-visible,.forgot-password:focus-visible,.signup-link:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px}