:root{--dodger-blue: #1287FF;--dodger-blue-hover: #0a6fd8;--light-gray: #f8f9fa;--border-color: #ddd;--error-color: #f44336;--text-color: #333;--text-secondary: #555}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,system-ui,sans-serif;color:var(--text-color);margin:0 auto;padding:20px 12px;align-items:center;background:#fff;text-align:center;max-width:600px;min-height:100vh}a{color:var(--dodger-blue);text-decoration:none}a:hover{text-decoration:underline}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--dodger-blue);color:#fff;cursor:pointer;transition:background-color .25s}button:hover{background-color:var(--dodger-blue-hover)}button:focus,button:focus-visible{outline:2px solid var(--dodger-blue);outline-offset:2px}h1{font-size:24px;margin:0 0 8px;font-weight:600}p{font-size:16px;line-height:1.4;margin:0 0 20px;color:var(--text-secondary)}.loader{border:3px solid #f3f3f3;border-top:3px solid var(--dodger-blue);border-radius:50%;width:24px;height:24px;animation:spin 1s linear infinite;margin:0 auto 12px}.loader-small{border:3px solid #f3f3f3;border-top:3px solid var(--dodger-blue);border-radius:50%;width:16px;height:16px;animation:spin 1s linear infinite;margin:0 8px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}input::placeholder{color:#aaa;opacity:.7;font-style:italic}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}