*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#f5f5f5;color:#333}
.view{display:none}
.view:not([hidden]){display:flex;flex-direction:column;height:100vh}

/* Login */
#login-view{align-items:center;justify-content:center;background:linear-gradient(135deg,#1a237e,#0d47a1)}
.login-card{background:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 24px rgba(0,0,0,.15);width:90%;max-width:380px;text-align:center}
.login-card h1{color:#1a237e;margin-bottom:4px;font-size:1.8em}
.subtitle{color:#666;margin-bottom:24px;font-size:.9em}
.login-card input{width:100%;padding:12px;margin-bottom:12px;border:1px solid #ddd;border-radius:8px;font-size:1em}
.login-card input:focus{outline:none;border-color:#1a237e}
.login-card button{width:100%;padding:12px;background:#1a237e;color:#fff;border:none;border-radius:8px;font-size:1em;cursor:pointer}
.login-card button:hover{background:#0d47a1}
.login-card button:disabled{background:#999;cursor:wait}
.error{color:#d32f2f;margin-top:12px;font-size:.9em}
.preload-msg{color:#888;margin-top:16px;font-size:.85em;transition:opacity .5s}
.help-text{color:#999;margin-top:20px;font-size:.8em}
.help-text a{color:#1a237e}

/* Header */
header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:#1a237e;color:#fff}
header h1{font-size:1.2em;font-weight:500}
header button{background:rgba(255,255,255,.15);color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:.9em}
header button:hover{background:rgba(255,255,255,.25)}

/* Dashboard List */
#dashboard-list{flex:1;overflow-y:auto;padding:16px}
.tenant-section{margin-bottom:20px}
.tenant-name{font-size:.85em;color:#666;text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;padding:0 4px}
.dash-card{background:#fff;padding:16px;border-radius:10px;margin-bottom:8px;box-shadow:0 1px 4px rgba(0,0,0,.08);cursor:pointer;transition:box-shadow .15s}
.dash-card:hover{box-shadow:0 2px 12px rgba(0,0,0,.15)}
.dash-card h3{font-size:1em;margin-bottom:4px;color:#1a237e}
.dash-card p{font-size:.85em;color:#888}

/* Viewer */
#dash-frame{flex:1;border:none;width:100%}