*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter','Segoe UI',Roboto,system-ui,sans-serif;background:linear-gradient(135deg,#eaf0fa 0%,#f0f4fc 100%);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:16px;color:#0a1e3c}
.container{width:100%;max-width:1400px;background:#fff;border-radius:32px;box-shadow:0 25px 70px rgba(10,30,60,.14);overflow:hidden}
#login-section{min-height:600px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:40px 32px}
.login-logo{width:160px;height:160px;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.login-logo img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 8px 18px rgba(10,30,60,.12))}
#login-section h2{font-size:26px;font-weight:700;letter-spacing:-.5px;margin-bottom:6px}
#login-section .subtitle{color:#5a6d85;font-size:14px;margin-bottom:28px}
#login-form{width:100%;max-width:360px;text-align:left}
.form-group{margin-bottom:16px;position:relative}
.form-group label{display:block;font-size:13px;font-weight:600;color:#1a3550;margin-bottom:6px}
.form-group input{width:100%;padding:14px 44px 14px 16px;border:1.5px solid #dce5f0;border-radius:14px;font-size:14px;background:#fafcff;transition:.2s}
.form-group input:focus{outline:none;border-color:#1a3f6a;box-shadow:0 0 0 4px rgba(26,63,106,.08)}
.toggle-pass{position:absolute;right:12px;top:33px;background:none;border:none;cursor:pointer;font-size:18px;color:#7a8fa8;padding:4px}
.btn-primary{width:100%;padding:14px;background:linear-gradient(135deg,#0a1e3c,#1a3f6a);border:none;border-radius:14px;color:#fff;font-size:15px;font-weight:700;cursor:pointer;transition:.2s;box-shadow:0 6px 16px rgba(10,30,60,.18)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed}
.login-error{color:#c72a2a;font-size:13px;margin-top:12px;text-align:center;display:none;background:#fef2f2;padding:10px;border-radius:10px}
.login-copy{margin-top:20px;font-size:10px;color:#9aa8bd;letter-spacing:.4px}
#studies-section{display:none;background:#f8faff}
.studies-header{background:linear-gradient(135deg,#0a1e3c 0%,#12315a 100%);padding:16px 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.header-title{color:#fff;font-weight:800;font-size:16px;letter-spacing:.8px}
.user-info{display:flex;align-items:center;gap:10px}
.user-avatar{width:38px;height:38px;background:linear-gradient(135deg,#2a4b74,#3a6a9a);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px;border:2px solid rgba(255,255,255,.15)}
.user-name{color:#fff;font-weight:600;font-size:13px}
.user-role{color:#8aaccc;font-size:10px;background:rgba(255,255,255,.1);padding:3px 9px;border-radius:20px;text-transform:uppercase}
.btn-logout{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);padding:7px 16px;border-radius:30px;color:#fff;font-size:12px;cursor:pointer}
.filters-bar{background:#fff;padding:14px 20px;border-bottom:1px solid #e6edf6;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.filter-group{display:flex;align-items:center;gap:6px}
.filters-bar label{font-weight:600;color:#1a3550;font-size:11px;letter-spacing:.3px}
.filters-bar select,.filters-bar input{padding:8px 12px;border:1.5px solid #dce5f0;border-radius:30px;background:#fff;font-size:12px;min-width:130px}
#date-range input{min-width:140px}
.filter-badge{background:#eef4fb;padding:5px 12px;border-radius:30px;font-size:11px;color:#1a3550;font-weight:600}
.table-wrapper{padding:18px 20px 28px;overflow-x:auto}
.studies-table{width:100%;border-collapse:separate;border-spacing:0 8px;font-size:13px}
.studies-table thead th{text-align:left;padding:12px 14px;background:#eaf0f9;color:#0a1e3c;font-weight:700;font-size:10px;letter-spacing:.5px;text-transform:uppercase}
.studies-table thead th:first-child{border-radius:12px 0 0 12px;padding-left:18px}
.studies-table thead th:last-child{border-radius:0 12px 12px 0}
.studies-table tbody tr{background:#fff;border-radius:14px;box-shadow:0 2px 8px rgba(10,30,60,.04);transition:.2s}
.studies-table tbody tr:hover{box-shadow:0 8px 20px rgba(10,30,60,.08)}
.studies-table tbody td{padding:14px 14px}
.study-id{font-family:monospace;font-size:10px;color:#2a4b74;background:#eef4fb;padding:3px 9px;border-radius:20px}
.patient-name{font-weight:700;color:#0a1e3c}
.modality-badge{font-size:10px;font-weight:700;padding:4px 10px;border-radius:20px;color:#fff}
.modality-badge.DX,.modality-badge.CR{background:#1a4a6a}
.modality-badge.US{background:#1f6e8c}
.btn-view{background:#0a1e3c;color:#fff;border:none;padding:7px 16px;border-radius:30px;font-size:12px;font-weight:600;cursor:pointer}
.no-studies{text-align:center;padding:50px 20px;color:#4a5f7a;background:#fff;border-radius:20px}
.loader{border:4px solid #eaf0f9;border-top:4px solid #0a1e3c;border-radius:50%;width:32px;height:32px;animation:spin .8s linear infinite;margin:40px auto}
@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:768px){
  body{padding:10px}
  .container{border-radius:20px}
  #login-section{padding:32px 20px;min-height:auto}
  .login-logo{width:130px;height:130px}
  .studies-header{padding:12px 14px}
  .header-title{font-size:13px}
  .filters-bar{padding:12px 14px;gap:10px}
  .filter-group{flex:1 1 100%}
  .filters-bar select,.filters-bar input{flex:1;min-width:0}
  #date-range{width:100%}
  .table-wrapper{padding:10px}
  .studies-table thead{display:none}
  .studies-table tbody tr{display:block;margin-bottom:10px;padding:12px}
  .studies-table tbody td{display:flex;justify-content:space-between;padding:8px 4px;border-bottom:1px solid #eef2f6}
  .studies-table tbody td:before{content:attr(data-label);font-weight:700;color:#1a3550;font-size:11px}
}