:root {
  --bg:#050d14; --surface:#0a1520; --panel:#0d1e2e; --border:#1a3448;
  --accent:#00c9ff; --accent2:#0077aa; --warn:#ff9900; --danger:#ff3333;
  --safe:#00e5a0; --text:#cde8f5; --muted:#4a7a99;
  --font-mono:'Space Mono',monospace; --font-display:'Syne',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{background:var(--bg);color:var(--text);font-family:var(--font-mono);min-height:100vh;overflow-x:hidden;}
body::before{content:'';position:fixed;inset:0;background-image:linear-gradient(rgba(0,201,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,201,255,.03) 1px,transparent 1px);background-size:40px 40px;pointer-events:none;z-index:0;}
.wrapper{position:relative;z-index:1;padding:24px;max-width:1200px;margin:0 auto;}

header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;border-bottom:1px solid var(--border);padding-bottom:16px;}
.logo{font-family:var(--font-display);font-size:1.6rem;font-weight:800;color:var(--accent);}
.logo span{color:var(--text);opacity:.5;font-weight:400;font-size:.8rem;display:block;letter-spacing:2px;text-transform:uppercase;}
.header-right{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.mqtt-badge{display:flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:4px;padding:4px 10px;font-size:.65rem;letter-spacing:1.5px;text-transform:uppercase;transition:.3s;}
.mqtt-badge.connecting{border-color:var(--warn);color:var(--warn);}
.mqtt-badge.connected{border-color:var(--safe);color:var(--safe);}
.mqtt-badge.error{border-color:var(--danger);color:var(--danger);}
.mqtt-dot{width:7px;height:7px;border-radius:50%;background:currentColor;}
.mqtt-badge.connected .mqtt-dot{animation:pdot 1.4s infinite;}
@keyframes pdot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
#clock{font-size:.75rem;color:var(--muted);}
.esp32-badge{display:flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:4px;padding:4px 10px;font-size:.65rem;letter-spacing:1.5px;text-transform:uppercase;font-weight:700;font-family:var(--font-mono);transition:.3s;}
.esp32-badge.online{border-color:var(--safe);color:var(--safe);background:rgba(0,229,160,0.08);}
.esp32-badge.offline{border-color:var(--danger);color:var(--danger);background:rgba(255,51,51,0.08);animation:blink-offline 1.5s infinite;}
@keyframes blink-offline{0%,100%{opacity:1}50%{opacity:.4}}

.config-bar{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:14px 18px;margin-bottom:20px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.config-bar label{font-size:.65rem;color:var(--muted);letter-spacing:1px;text-transform:uppercase;white-space:nowrap;}
.config-bar input{background:var(--surface);border:1px solid var(--border);border-radius:4px;color:var(--text);font-family:var(--font-mono);font-size:.72rem;padding:6px 10px;outline:none;min-width:160px;transition:border-color .2s;}
.config-bar input:focus{border-color:var(--accent);}
.btn-connect{background:linear-gradient(135deg,var(--accent2),var(--accent));border:none;border-radius:4px;color:#000;font-family:var(--font-mono);font-size:.7rem;font-weight:700;padding:7px 14px;cursor:pointer;letter-spacing:1px;text-transform:uppercase;transition:opacity .2s;}
.btn-connect:hover{opacity:.85;}
.btn-demo{background:transparent;border:1px solid var(--border);border-radius:4px;color:var(--muted);font-family:var(--font-mono);font-size:.7rem;padding:7px 14px;cursor:pointer;letter-spacing:1px;text-transform:uppercase;transition:.2s;}
.btn-demo:hover{border-color:var(--accent);color:var(--accent);}
.btn-email-on{border-color:var(--warn)!important;color:var(--warn)!important;}
.btn-email-off{border-color:var(--muted)!important;color:var(--muted)!important;opacity:.55;}

#alert-banner{display:none;align-items:center;gap:12px;background:rgba(255,51,51,.12);border:1px solid var(--danger);border-radius:6px;padding:12px 16px;margin-bottom:20px;animation:flash-b 1s infinite alternate;}
@keyframes flash-b{from{border-color:var(--danger)}to{border-color:transparent}}
#alert-banner.show{display:flex;}
.alert-text{font-size:.8rem;color:#ff8888;flex:1;}
.alert-level{font-size:1rem;font-weight:700;color:var(--danger);}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(175px,1fr));gap:14px;margin-bottom:24px;}
.card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:16px;position:relative;overflow:hidden;transition:border-color .3s;}
.card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--accent);transform:scaleX(0);transition:transform .4s;transform-origin:left;}
.card:hover::after{transform:scaleX(1);}
.card-label{font-size:.65rem;color:var(--muted);letter-spacing:2px;text-transform:uppercase;margin-bottom:8px;}
.card-value{font-family:var(--font-display);font-size:2rem;font-weight:800;line-height:1;}
.card-unit{font-size:.7rem;color:var(--muted);margin-top:4px;}
.card-delta{font-size:.7rem;margin-top:6px;}
.card-delta.up{color:var(--danger);} .card-delta.down{color:var(--safe);} .card-delta.stable{color:var(--muted);}
.card.safe{border-color:rgba(0,229,160,.3);} .card.warn{border-color:rgba(255,153,0,.4);}
.card.danger{border-color:rgba(255,51,51,.5);animation:cpulse 1.5s infinite;}
@keyframes cpulse{0%,100%{box-shadow:0 0 0 0 rgba(255,51,51,0)}50%{box-shadow:0 0 0 6px rgba(255,51,51,.15)}}
.wave-bar{height:4px;background:linear-gradient(90deg,transparent,var(--accent),transparent);background-size:200% 100%;animation:wslide 3s linear infinite;border-radius:2px;margin-top:4px;}
@keyframes wslide{0%{background-position:100% 0}100%{background-position:-100% 0}}

.main-grid{display:grid;grid-template-columns:1fr 380px;gap:20px;margin-bottom:20px;}
@media(max-width:900px){.main-grid{grid-template-columns:1fr;}}

.chart-panel,.ai-panel,.table-panel,.log-panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:20px;}
.log-panel{margin-top:20px;}
.panel-title{font-family:var(--font-display);font-size:.85rem;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;}
.chart-wrap{position:relative;height:220px;}
.thresholds{display:flex;gap:16px;margin-top:12px;flex-wrap:wrap;}
.th-item{display:flex;align-items:center;gap:6px;font-size:.65rem;color:var(--muted);}
.th-line{width:18px;height:2px;}

.ai-panel{display:flex;flex-direction:column;gap:14px;}
.ai-header{display:flex;align-items:center;gap:10px;}
.ai-logo{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:.9rem;flex-shrink:0;}
.ai-title{font-family:var(--font-display);font-weight:700;font-size:.9rem;}
.ai-subtitle{font-size:.65rem;color:var(--muted);}
#ai-output{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:14px;font-size:.73rem;line-height:1.7;color:var(--text);min-height:160px;max-height:280px;overflow-y:auto;white-space:pre-wrap;}
#ai-output::-webkit-scrollbar{width:4px;} #ai-output::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px;}
.ai-status{font-size:.65rem;color:var(--muted);display:flex;align-items:center;gap:6px;}
.ai-spinner{width:8px;height:8px;border:1px solid var(--muted);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;display:none;}
@keyframes spin{to{transform:rotate(360deg)}}
.btn-analyze{background:linear-gradient(135deg,var(--accent2),var(--accent));border:none;border-radius:6px;color:#000;font-family:var(--font-mono);font-size:.75rem;font-weight:700;padding:10px 16px;cursor:pointer;letter-spacing:1px;text-transform:uppercase;transition:opacity .2s,transform .1s;}
.btn-analyze:hover{opacity:.85;} .btn-analyze:active{transform:scale(.97);} .btn-analyze:disabled{opacity:.4;cursor:not-allowed;}

table{width:100%;border-collapse:collapse;font-size:.72rem;}
th{color:var(--muted);text-transform:uppercase;letter-spacing:1.5px;font-size:.6rem;padding:6px 10px;text-align:left;border-bottom:1px solid var(--border);}
td{padding:10px 10px;border-bottom:1px solid rgba(26,52,72,.5);}
tr:last-child td{border-bottom:none;} tr:hover td{background:rgba(0,201,255,.03);}
.status-pill{display:inline-block;padding:2px 8px;border-radius:20px;font-size:.6rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;}
.pill-safe{background:rgba(0,229,160,.15);color:var(--safe);border:1px solid rgba(0,229,160,.3);}
.pill-warn{background:rgba(255,153,0,.15);color:var(--warn);border:1px solid rgba(255,153,0,.3);}
.pill-danger{background:rgba(255,51,51,.15);color:var(--danger);border:1px solid rgba(255,51,51,.3);}

#mqtt-log{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:12px;font-size:.65rem;line-height:1.8;height:120px;overflow-y:auto;}
#mqtt-log::-webkit-scrollbar{width:4px;} #mqtt-log::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px;}
.log-entry{padding:1px 0;border-bottom:1px solid rgba(26,52,72,.2);}
.log-entry.info{color:var(--accent);} .log-entry.data{color:var(--text);} .log-entry.error{color:var(--danger);} .log-entry.warn{color:var(--warn);}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.typing::after{content:'▋';animation:blink .7s infinite;}

@media(max-width:768px){
  .wrapper{padding:12px;}
  .table-panel{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  table{width:max-content;min-width:100%;}
  .logo{font-size:1.1rem;}
  .card-value{font-size:1.5rem;}
}