:root{--primary-green: #34c759;--primary-blue: #007aff;--bg-color: #f5f5f7;--card-bg: #ffffff;--text-main: #1d1d1f;--text-secondary: #86868b;--border-radius: 16px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06)}*{box-sizing:border-box;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background-color:var(--bg-color);color:var(--text-main);min-height:100vh}.app-container{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.card{background:var(--card-bg);border-radius:var(--border-radius);padding:24px;box-shadow:var(--shadow);margin-bottom:16px}.btn{width:100%;padding:16px;border-radius:12px;border:none;font-size:16px;font-weight:600;cursor:pointer;transition:opacity .2s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--primary-green);color:#fff}.btn-secondary{background-color:var(--primary-blue);color:#fff}.input-group{margin-bottom:20px}.input-label{display:block;margin-bottom:8px;color:var(--text-secondary);font-size:14px}.input-field{width:100%;padding:14px;border-radius:12px;border:1px solid #d2d2d7;font-size:16px;outline:none;transition:border-color .2s}.input-field:focus{border-color:var(--primary-blue)}.otp-container{display:flex;gap:12px;justify-content:center;margin-bottom:24px}.otp-digit{width:50px;height:60px;border-radius:12px;border:1px solid #d2d2d7;text-align:center;font-size:24px;font-weight:700}h1{font-size:28px;font-weight:700;margin-bottom:8px;text-align:center}p.subtitle{color:var(--text-secondary);text-align:center;margin-bottom:32px}