:root{--bg-color: #ffffff;--text-color: #000000;--border-color: #cccccc;--primary-color: #000000;--primary-text: #ffffff;--disabled-bg: #eeeeee;--disabled-text: #888888;--error-color: #d32f2f}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.5;-webkit-font-smoothing:antialiased}.container{width:100%;max-width:600px;margin:0 auto;padding:16px}h1,h2,h3{font-weight:700;margin-bottom:16px;color:var(--text-color)}h1{font-size:24px}h2{font-size:20px}h3{font-size:18px}.btn{display:inline-block;padding:12px 24px;font-size:16px;font-weight:700;text-align:center;text-decoration:none;border:2px solid var(--primary-color);border-radius:0;background-color:var(--primary-color);color:var(--primary-text);cursor:pointer;width:100%}.btn:disabled,.btn.disabled{background-color:var(--disabled-bg);border-color:var(--disabled-bg);color:var(--disabled-text);cursor:not-allowed}.btn-outline{background-color:transparent;color:var(--primary-color)}.form-group{margin-bottom:16px}label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}input[type=text],input[type=password],input[type=date],select,textarea{width:100%;padding:12px;font-size:16px;border:1px solid var(--border-color);border-radius:0;background-color:#fff;color:var(--text-color)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color)}.card{border:1px solid var(--border-color);padding:16px;margin-bottom:16px;background-color:#fff}.text-center{text-align:center}.text-error{color:var(--error-color)}.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-4{gap:16px}