.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border:none;border-radius:8px;font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s ease;text-decoration:none;line-height:1;min-height:44px;gap:8px}.btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #00000026}.btn:active{transform:translateY(0);box-shadow:0 2px 4px #0000001a}.btn:focus{outline:none;box-shadow:0 0 0 3px #6366f14d}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 2px 8px #667eea4d}.btn-primary:hover{background:linear-gradient(135deg,#5a6fd8,#6a4190);box-shadow:0 4px 16px #667eea66}.btn-google{background:#fff;color:#333;border:1px solid #dadce0;box-shadow:0 1px 3px #0000001a}.btn-google:hover{background:#f8f9fa;border-color:#c6c8ca;box-shadow:0 2px 8px #00000026}.btn-google:before{content:"";width:18px;height:18px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%234285f4' d='M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z'/%3E%3Cpath fill='%2334a853' d='M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z'/%3E%3Cpath fill='%23fbbc05' d='M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z'/%3E%3Cpath fill='%23ea4335' d='M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z'/%3E%3C/svg%3E");background-size:contain;background-repeat:no-repeat;background-position:center}.btn-secondary{background:#6b7280;color:#fff;box-shadow:0 1px 3px #0000001a}.btn-secondary:hover{background:#4b5563;box-shadow:0 2px 6px #00000026}.btn-danger{background:#ef4444;color:#fff;box-shadow:0 1px 3px #ef44444d}.btn-danger:hover{background:#dc2626;box-shadow:0 2px 6px #ef444466}.btn-sm{padding:8px 16px;font-size:13px;min-height:36px}.btn-lg{padding:16px 32px;font-size:16px;min-height:52px}.panel{max-width:900px;margin:0 auto}.row{display:flex;align-items:center}.small{font-size:12px;color:#666}.skeleton{background:linear-gradient(90deg,#f3f3f3,#f9f9f9,#f3f3f3);background-size:200% 100%;animation:sk 1.2s infinite}@keyframes sk{0%{background-position:200% 0}to{background-position:-200% 0}}.spinner{width:14px;height:14px;border:2px solid #ddd;border-top-color:#666;border-radius:50%;animation:sp .8s linear infinite}@keyframes sp{to{transform:rotate(360deg)}}.status{font-weight:600}.status.ok{color:#16a34a}.status.bad{color:#dc2626}.toast{position:fixed;right:16px;bottom:16px;padding:12px 16px;border-radius:8px;color:#fff;box-shadow:0 8px 24px #0003;animation:fadein .15s ease-out}.toast.ok{background:#16a34a}.toast.bad{background:#dc2626}@keyframes fadein{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}