.back-button{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--back-button-bg, linear-gradient(135deg, #667eea 0%, #764ba2 100%));color:#fff;border:none;border-radius:8px;font-size:1.2em;text-decoration:none;cursor:pointer;transition:all .2s ease;flex-shrink:0}.back-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px var(--back-button-shadow, rgba(102, 126, 234, .4))}@media (max-width: 600px){.back-button{width:28px;height:28px;font-size:.9em;border-radius:6px}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;padding:20px;display:flex;flex-direction:column;align-items:center;justify-content:center}.container{max-width:520px;width:100%}.login-card{background:white;border-radius:20px;box-shadow:0 15px 50px #00000040;padding:30px 40px;text-align:center}.login-card .back-button{margin-bottom:16px}.login-header{margin-bottom:30px}.logo{max-width:200px;width:50%;height:auto;margin-bottom:10px}.login-subtitle{color:#666;font-size:.95em}.login-buttons{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.login-btn{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 20px;border:none;border-radius:12px;font-size:1em;font-weight:600;color:#fff;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #00000026}.login-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #00000040}.login-btn:active{transform:translateY(0)}.login-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-icon{width:22px;height:22px}.btn-icon-white{filter:brightness(0) invert(1)}.btn-discord{background:#5865F2}.btn-discord:hover{background:#4752c4}.login-terms-note{color:#8a8f9c;font-size:.8em;line-height:1.5;margin-bottom:20px}.login-terms-note a{color:#667eea}.login-error{background:#fee2e2;color:#dc2626;padding:12px;border-radius:8px;font-size:.9em;margin-bottom:16px}.login-header,.login-buttons,.login-terms-note,.login-error{max-width:380px;margin-left:auto;margin-right:auto}.login-footer{color:#5b5f6b;font-size:.85em;line-height:1.6;border-top:1px solid #eceef4;padding-top:24px}.login-lead{color:#4a4f5c;font-weight:600;font-size:1em;line-height:1.5;margin-bottom:20px}.feature-list{display:flex;flex-direction:column;gap:16px;text-align:left}.feature-card{background:#f7f8fc;border:1px solid #e7e9f2;border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:12px}.feature-head{display:flex;align-items:flex-start;gap:12px}.feature-icon{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:#fff;border:1px solid #e7e9f2;font-size:1.25em;line-height:1}.feature-title{color:#2d3142;font-size:1em;font-weight:700;margin-bottom:3px}.feature-desc{color:#6b7080;font-size:.86em;line-height:1.5}.feature-image{display:block;width:100%;height:auto;border-radius:10px;border:1px solid #e3e6f0;box-shadow:0 3px 10px #2d314214}@media (max-width: 500px){.login-card{padding:24px 20px}.feature-card{padding:12px}}