:root{--primary:#212529;--accent:#e03131;--text:#495057;--text-light:#868e96;--bg:#f8f9fa;--border:#e9ecef;--card-bg:#fff}body{background-color:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5}#root{flex-direction:column;width:100%;max-width:100%;min-height:100vh;margin:0 auto;display:flex}h1,h2{color:#212529;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-weight:600}h1{margin:0;font-size:28px}h2{margin:0 0 8px;font-size:24px}p{margin:0}button,select{font-family:inherit}:root{--primary:#212529;--accent:#e03131;--text:#495057;--text-light:#868e96;--bg:#f8f9fa;--border:#e9ecef}*{box-sizing:border-box}body{background-color:var(--bg);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.app-wrapper{background-color:var(--bg);min-height:100vh}.header{border-bottom:1px solid var(--border);z-index:100;background-color:#fff;justify-content:space-between;align-items:center;padding:16px 32px;display:flex;position:sticky;top:0;box-shadow:0 2px 8px #0000000f}.header-title{letter-spacing:-.5px;color:var(--primary);margin:0;font-size:24px;font-weight:700}.main-content{max-width:1920px;margin:0 auto;padding:0 32px}.login-container{background:linear-gradient(135deg,#f0f2f5 0%,#e9ecef 100%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-box{text-align:center;background-color:#fff;border-radius:16px;width:100%;max-width:400px;padding:40px 36px;box-shadow:0 10px 30px #0000001a}.login-description{color:#666;margin:12px 0 28px;font-size:15px}.login-form{flex-direction:column;gap:12px;display:flex}.login-form input{border:1px solid #ced4da;border-radius:8px;padding:14px 16px;font-size:16px}.login-form button{color:#fff;cursor:pointer;background-color:#212529;border:none;border-radius:8px;padding:14px;font-size:16px;font-weight:700}.logout-button{cursor:pointer;background:#fff;border:1px solid #dee2e6;border-radius:6px;padding:8px 18px;font-size:14px}.error-text{color:#e03131;margin-top:12px;font-size:14.5px}@media (width<=1024px){.header{padding:14px 20px}.main-content{padding:0 20px}}