:root{--primary:#123c69;--secondary:#2f80ed;--accent:#f2b705;--bg:#f4f7fb;--text:#17243a}
*{box-sizing:border-box}
body{margin:0;font-family:Arial,sans-serif;background:var(--bg);color:var(--text)}
.hidden{display:none!important}
.muted{color:#687084}
.small{font-size:12px}
.error{color:#b3261e}
a{color:var(--secondary)}
button{cursor:pointer;font-family:inherit}
button.link{background:none;border:0;color:var(--secondary);padding:0;text-decoration:underline}
button.primary,form button[type=submit]{background:var(--secondary);color:#fff;border:0;padding:10px 16px;border-radius:8px;font-weight:bold}
input,select,textarea{padding:9px;border:1px solid #dce3ec;border-radius:7px;font-family:inherit;font-size:14px}
label{display:grid;gap:6px;font-size:13px;font-weight:bold}

/* Login screen */
.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),#2c5596)}
.login-card{background:#fff;border-radius:16px;padding:36px;width:100%;max-width:380px;box-shadow:0 20px 60px #0003}
.login-card form{display:grid;gap:14px;margin-top:16px}
.login-card .brand{color:var(--primary);margin-bottom:6px}

/* Shell */
.shell{display:flex;min-height:100vh}
aside{width:250px;background:#101c30;color:#dce6f4;padding:22px 14px;display:flex;flex-direction:column}
.brand{padding:6px 8px 30px;color:#fff}
.brand small{display:block;color:#90a3bf;margin-top:4px}
#brand-logo{max-height:32px;display:block;margin-bottom:8px}
.nav{display:block;background:none;border:0;color:#b8c5d8;text-align:left;padding:12px;border-radius:8px;font-size:14px;text-decoration:none;margin-bottom:4px}
.nav:hover,.nav.active{background:#1e3150;color:#fff}
aside footer{margin-top:auto;display:grid;gap:8px}
aside footer select{background:#16233b;color:#dce6f4;border:1px solid #263a4d}
main{flex:1;padding:34px;max-width:1400px}
header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:6px}
header small{color:#6c7a90;letter-spacing:1px}
#session-badge{background:#e5f7eb;color:#14713b;padding:8px 13px;border-radius:20px;font-size:12px;white-space:nowrap}

/* Tabs & panels */
.tabs{display:flex;gap:6px;margin:18px 0;flex-wrap:wrap}
.tab{padding:9px 14px;border-radius:20px;text-decoration:none;background:#fff;border:1px solid #e0e7f0;color:#3a4a63;font-size:13px}
.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.subtabs{display:flex;gap:6px;margin:10px 0;flex-wrap:wrap}
.subtabs button{background:#fff;border:1px solid #e0e7f0;padding:8px 12px;border-radius:8px;font-size:13px}
.subtabs button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.panel{background:#fff;border:1px solid #e0e7f0;border-radius:14px;padding:22px;margin-top:16px}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.panel-head .actions{display:flex;gap:8px;flex-wrap:wrap}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-top:16px}
.cards article{background:#fff;border:1px solid #e0e7f0;border-radius:14px;padding:18px;text-transform:capitalize}
.cards strong{display:block;font-size:24px;margin-top:8px;text-transform:none}

/* Forms */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:12px}
.grid .span-2{grid-column:1/-1}
.inline-form{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:12px 0}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
.checks label{font-weight:normal;display:flex;gap:6px;align-items:center}

/* Wizard */
.wizard .steps{display:flex;gap:10px;list-style:none;padding:0;flex-wrap:wrap;margin-bottom:18px}
.wizard .steps li{background:#eef2f8;padding:8px 12px;border-radius:20px;font-size:12px;color:#6c7a90}
.wizard .steps li.active{background:var(--primary);color:#fff}
.wizard .steps li.done{background:#dfeee3;color:#14713b}
.wizard-nav{display:flex;gap:10px;margin-top:18px}

/* Tables */
table.data{width:100%;border-collapse:collapse;margin-top:12px;font-size:14px}
table.data th,table.data td{text-align:left;padding:9px 10px;border-bottom:1px solid #eef1f6}
table.data th{color:#6c7a90;font-weight:600;font-size:12px;text-transform:uppercase}

/* Badges */
.badge{display:inline-block;padding:4px 9px;border-radius:20px;background:#eaf2ff;color:var(--primary);font-size:12px;font-weight:bold;margin:2px 2px 2px 0}
.badge.active{background:#dfeee3;color:#14713b}
.badge.trial{background:#fff4d6;color:#8a6300}
.badge.suspended{background:#fde3e1;color:#b3261e}
.badge.cancelled{background:#eee;color:#555}

/* Modal */
.modal{position:fixed;inset:0;background:#0008;display:flex;align-items:center;justify-content:center;padding:20px;z-index:20}
.modal>div{background:#fff;padding:24px;border-radius:16px;max-width:640px;width:100%;max-height:90vh;overflow:auto}

/* Hamburger menu button */
.hamburger{display:none;background:none;border:none;padding:8px;cursor:pointer;flex-direction:column;gap:5px;z-index:30}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s,opacity .2s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Sidebar overlay for mobile */
.sidebar-overlay{display:none;position:fixed;inset:0;background:#0008;z-index:9}
.sidebar-overlay.open{display:block}

/* Loading spinner */
.spinner{display:inline-block;width:20px;height:20px;border:3px solid #e0e7f0;border-top-color:var(--secondary);border-radius:50%;animation:spin .6s linear infinite}
.spinner.sm{width:14px;height:14px;border-width:2px}
.spinner.lg{width:32px;height:32px;border-width:4px}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-center{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:40px;color:#6c7a90}

/* Button states */
button{transition:background .15s,opacity .15s,box-shadow .15s}
button:hover:not(.link){filter:brightness(1.08)}
button:active:not(.link){transform:scale(0.97)}
button:focus-visible{outline:2px solid var(--secondary);outline-offset:2px}
button:disabled,button[disabled]{opacity:.5;cursor:not-allowed;pointer-events:none}
button.primary:hover:not(:disabled){background:#1a6ae0}
button.primary:active:not(:disabled){background:#0d5bc5}
button.danger{background:#b3261e;color:#fff;border:0;padding:10px 16px;border-radius:8px;font-weight:bold}
button.danger:hover:not(:disabled){background:#9a1f18}
button.secondary{background:#fff;color:var(--primary);border:1px solid #dce3ec;padding:10px 16px;border-radius:8px;font-weight:bold}
button.secondary:hover:not(:disabled){background:#f4f7fb}

/* Input focus */
input:focus,select:focus,textarea:focus{outline:2px solid var(--secondary);outline-offset:1px;border-color:var(--secondary)}

/* Toast notifications */
.toast{position:fixed;bottom:24px;right:24px;background:#14713b;color:#fff;padding:14px 22px;border-radius:10px;font-size:14px;font-weight:500;z-index:1000;box-shadow:0 4px 16px rgba(0,0,0,.2);animation:slideInToast .3s ease}
.toast.error{background:#b3261e}
@keyframes slideInToast{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}

/* Confirm modal */
.confirm-modal{text-align:center}
.confirm-modal>div{text-align:center;max-width:400px}
.confirm-modal p{margin:16px 0;font-size:15px}
.confirm-modal .actions{display:flex;gap:10px;justify-content:center;margin-top:20px}

/* Print styles */
@media print{
  body *{visibility:hidden}
  .modal,.toast,.hamburger,.sidebar-overlay{display:none!important}
  aside,header,#login-screen{display:none!important}
  main{padding:0;max-width:100%}
  #app,#app *{visibility:visible}
  #app{position:absolute;left:0;top:0;width:100%}
  .panel{border:none;box-shadow:none;padding:10px}
  .tabs,.subtabs,.actions,button,.wizard-nav{display:none!important}
}

@media(max-width:800px){
  .hamburger{display:flex}
  aside{position:fixed;left:-280px;top:0;bottom:0;width:260px;z-index:20;transition:left .25s ease;overflow-y:auto}
  aside.open{left:0}
  main{padding:18px}
  header{flex-wrap:wrap}
  .cards,.grid,.checks{grid-template-columns:1fr}
  .panel-head{flex-direction:column;align-items:stretch}
  .panel-head .actions{justify-content:flex-end}
  table.data{font-size:12px}
  table.data th,table.data td{padding:7px 6px}
  .tabs{gap:4px}
  .tab{padding:7px 10px;font-size:12px}
  .modal>div{margin:10px;max-height:95vh}
}