:root{
  --ink:#e7edf1;
  --ink-dim:#8ba0ac;
  --bg:#0e1620;
  --panel:#152030;
  --line:#233240;
  --accent:#45d4c0;
  --danger:#e79aa3;
  --danger-bg:#2a1418;
  --danger-border:#4a2029;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Segoe UI',system-ui,sans-serif;
  min-height:100vh;
}

/* ===== Login Scene ===== */
.scene{
  position:relative;
  height:100vh;
  min-height:600px;
  overflow:hidden;
  background:linear-gradient(180deg,#cfe0d8 0%,#b8b9d8 35%,#8f8fc7 60%,#7a74bd 100%);
}
.scene svg{position:absolute;bottom:0;left:0;width:100%;height:100%;}
.login-title{
  position:absolute;top:60px;left:50%;transform:translateX(-50%);
  font-size:32px;font-weight:600;color:#fff;z-index:5;
}
.login-card{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:320px;z-index:5;
  background:rgba(14,22,32,.92);backdrop-filter:blur(6px);
  border:1px solid var(--accent);padding:28px;
}
.field{
  width:100%;padding:12px 14px;margin-bottom:14px;
  background:#0c141c;border:1px solid var(--line);color:var(--ink);
  font-size:13px;font-family:inherit;
}
.field:focus{outline:none;border-color:var(--accent);}

/* ===== Buttons ===== */
.btn{
  width:100%;padding:12px;background:var(--accent);color:#06231f;
  border:none;font-weight:600;font-size:13px;letter-spacing:.3px;
  font-family:inherit;cursor:pointer;
}
.btn:hover{background:#5be0cd;}

.button1{
  padding:8px 16px;font-size:12px;cursor:pointer;
  background:var(--accent);color:#06231f;border:1px solid var(--accent);
  font-family:inherit;font-weight:600;
}
.button1:hover{background:#5be0cd;}

.button2{
  padding:8px 16px;font-size:12px;cursor:pointer;
  background:var(--panel);color:var(--ink-dim);border:1px solid var(--line);
  font-family:inherit;
}
.button2:hover{color:var(--ink);border-color:var(--accent);}

.button2.danger{
  background:var(--danger-bg);color:var(--danger);border-color:var(--danger-border);
}
.button2.danger:hover{background:#3a1a20;}

/* ===== Header & Nav ===== */
header{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;padding:16px 32px;
}

h1{
  font-size:20px;font-weight:600;color:#fff;
}

.topnav{
  display:flex;align-items:center;gap:8px;
}
.topnav a,.topnav .navbtn{
  padding:8px 16px;font-size:12px;cursor:pointer;
  background:var(--panel);color:var(--ink-dim);border:1px solid var(--line);
  text-decoration:none;font-family:inherit;
}
.topnav a:hover,.topnav .navbtn:hover{
  color:var(--ink);border-color:var(--accent);
}
.topnav a.active{
  background:var(--accent);color:#06231f;border-color:var(--accent);
}

/* ===== Dashboard ===== */
main{padding:0 32px 32px;}

.dashboard-toolbar{
  display:flex;align-items:center;gap:10px;margin-bottom:22px;flex-wrap:wrap;
}
.summary-pill{
  padding:10px 18px;font-size:12px;background:var(--panel);border:1px solid var(--line);color:var(--ink);
}

/* ===== Device Grid ===== */
.device-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;
}
.device-card{
  padding:14px 16px;background:var(--panel);border:1px solid var(--line);
  border-left:2px solid var(--accent);font-family:inherit;color:var(--ink);
  cursor:pointer;transition:border-left-color 0.14s ease,transform 0.14s ease,box-shadow 0.14s ease;
}
.device-card:hover{
  transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,0.4);
}
.device-card.offline{border-left-color:#5a4a4a;}

.device-card-top{display:flex;align-items:center;justify-content:space-between;}
.device-card-icon{font-size:24px;}
.status-dot{width:7px;height:7px;background:var(--accent);display:inline-block;margin-right:7px;}
.device-card.offline .status-dot,.status-offline{background:#5a4a4a;}
.device-card.online .status-dot,.status-online{background:var(--accent);}

.device-card-name{
  font-size:13px;font-weight:600;color:var(--ink);margin-top:10px;cursor:pointer;
}
.device-card-ip{font-size:11px;color:var(--ink-dim);margin-top:2px;}
.device-card-meta{
  display:flex;justify-content:space-between;font-size:11px;margin-top:10px;color:var(--ink-dim);
}
.device-card-actions{display:flex;gap:8px;margin-top:12px;}

/* ===== Cards ===== */
.card{
  background:var(--panel);border:1px solid var(--line);padding:24px;margin-bottom:16px;
}

/* ===== Form Elements ===== */
input[type="text"],input[type="password"],input[type="number"],select{
  width:100%;padding:12px 14px;margin-bottom:14px;
  background:#0c141c;border:1px solid var(--line);color:var(--ink);
  font-size:13px;font-family:inherit;
}
input:focus,select:focus{outline:none;border-color:var(--accent);}
select{cursor:pointer;}
option{background:#0c141c;color:var(--ink);}

#addDeviceForm{
  display:flex;align-items:center;margin-bottom:16px;gap:12px;flex-wrap:wrap;
}

.status-message{margin-top:8px;min-height:22px;color:var(--ink-dim);}

/* ===== Device Details ===== */
.device-details-card{display:flex;flex-direction:column;align-items:flex-start;}
.device-icon{width:96px;height:96px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.device-icon svg{width:96px;height:96px;display:block;}
.error-message{color:var(--danger);}

/* ===== Terminal ===== */
.terminal-container{display:flex;flex-direction:column;}
#terminal{
  background:#0c141c;color:var(--accent);border:1px solid var(--line);
  padding:16px;height:400px;overflow-y:auto;white-space:pre-wrap;width:100%;
  font-family:'JetBrains Mono','Segoe UI Mono',monospace;font-size:13px;
}
#commandInput{
  background:#0c141c;color:var(--ink);border:1px solid var(--line);
  padding:12px 14px;width:100%;margin-top:12px;font-size:13px;
  font-family:'JetBrains Mono','Segoe UI Mono',monospace;
}
#commandInput:focus{outline:none;border-color:var(--accent);}
.prompt{color:var(--ink-dim);}
.output-success{color:var(--accent);}
.output-error{color:var(--danger);}

/* ===== Animations ===== */
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(8px);}
  to{opacity:1;transform:translateY(0);}
}
.device-card{animation:fadeInUp 0.3s ease both;}

/* ===== Responsive ===== */
@media(max-width:600px){
  header{flex-direction:column;align-items:flex-start;gap:8px;padding:12px;}
  h1{font-size:1.2rem;}
  .topnav{flex-wrap:wrap;}
  main{padding:0 12px 12px;}
  .device-grid{gap:12px;grid-template-columns:1fr;}
  .dashboard-toolbar{gap:8px;}
  #addDeviceForm{flex-direction:column;align-items:stretch;}
}

/* ===== Focus Accessibility ===== */
:focus-visible{outline:2px solid rgba(69,212,192,0.4);outline-offset:2px;}

/* ===== Reduced Motion ===== */
@media(prefers-reduced-motion:reduce){
  .device-card,.button1,.button2{transition:none;animation:none;}
}