/* ═══════════════════════════════════════════════════════════
   NexaIoT — Production Theme
   Clean, modern SaaS design. Each section distinct.
   ═══════════════════════════════════════════════════════════ */

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --bg:         #050d1a;
  --bg2:        #080f1d;
  --surface:    #0d1726;
  --surface2:   #111f30;
  --border:     #1a2d45;
  --border2:    #22385a;
  --accent:     #00d4ff;
  --accent-dim: rgba(0,212,255,.1);
  --accent-glow:rgba(0,212,255,.2);
  --green:      #10d98a;
  --red:        #ff3b5c;
  --amber:      #ffb020;
  --purple:     #a855f7;
  --blue:       #3b82f6;
  --orange:     #f97316;
  --text:       #e2eaff;
  --muted:      #5a7a9a;
  --muted2:     #8099b8;
  --nav-h:      60px;
  --sidebar-w:  230px;
  --font:       'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --mono:       'JetBrains Mono','Fira Code',monospace;
  --display:    'Exo 2',sans-serif;
  --r:          8px;
  --r-lg:       14px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;scroll-behavior:smooth}

body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle grid background */
body::before {
  content:'';
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(0,212,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,.025) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Ambient glow */
body::after {
  content:'';
  position:fixed;top:-20%;left:-10%;width:50%;height:60%;
  pointer-events:none;z-index:0;
  background:radial-gradient(ellipse, rgba(0,212,255,.06) 0%, transparent 70%);
  animation: ambientDrift 25s ease-in-out infinite;
}
@keyframes ambientDrift {
  0%,100%{transform:translate(0,0)}
  33%{transform:translate(8%,6%)}
  66%{transform:translate(-5%,10%)}
}

a{color:var(--accent);text-decoration:none}
a:hover{color:#33deff}
img{max-width:100%;display:block}
button{cursor:pointer;font-family:var(--font)}

/* ── Layout Shell ────────────────────────────────────────── */
.app-shell{
  display:flex;min-height:100vh;position:relative;z-index:1;
}

/* ── Top Nav ─────────────────────────────────────────────── */
.top-nav {
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  background:rgba(5,13,26,.92);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(16px);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px 0 0;
}
.top-nav-inner{
  display:flex;align-items:center;width:100%;height:100%;
}
.nav-logo {
  display:flex;align-items:center;gap:10px;
  padding:0 20px;height:100%;
  font-family:var(--display);font-weight:800;font-size:1.15rem;
  color:var(--text);text-decoration:none;white-space:nowrap;
  border-right:1px solid var(--border);
  flex-shrink:0;
}
.logo-icon{color:var(--accent)}
.logo-text{letter-spacing:-.01em}
.logo-accent{color:var(--accent)}

.nav-menu{display:flex;align-items:center;gap:2px;padding:0 16px;flex:1}
.nav-item {
  padding:6px 14px;border-radius:6px;font-size:13px;font-weight:500;
  color:var(--muted2);transition:all .15s;white-space:nowrap;
  border-bottom:2px solid transparent;border-radius:0;
  height:var(--nav-h);display:flex;align-items:center;
}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-item.active{color:var(--accent);border-bottom-color:var(--accent);background:rgba(0,212,255,.05)}

.nav-right{display:flex;align-items:center;gap:10px;padding:0 16px;margin-left:auto}
.nav-user{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted2);
}
.nav-avatar{
  width:30px;height:30px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),#0066ff);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#000;flex-shrink:0;
}
.nav-alert-dot{
  position:relative;display:inline-flex;
}
.nav-alert-dot .dot{
  position:absolute;top:-2px;right:-2px;width:8px;height:8px;
  border-radius:50%;background:var(--red);border:1px solid var(--bg);
  animation:pulseBadge 2s infinite;
}
@keyframes pulseBadge{0%,100%{opacity:1}50%{opacity:.4}}

/* ── Submenu Rail ────────────────────────────────────────── */
.submenu-rail {
  position:fixed;top:var(--nav-h);left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--bg2);
  border-right:1px solid var(--border);
  overflow-y:auto;overflow-x:hidden;
  z-index:50;
  display:flex;flex-direction:column;
  padding-bottom:20px;
}
.submenu-rail::-webkit-scrollbar{width:4px}
.submenu-rail::-webkit-scrollbar-track{background:transparent}
.submenu-rail::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}

.submenu-section-label {
  font-size:10px;font-weight:700;text-transform:uppercase;
  letter-spacing:.1em;color:var(--muted);
  padding:18px 18px 6px;
}
.submenu-item {
  display:flex;align-items:center;gap:10px;
  padding:9px 18px;
  font-size:13px;color:var(--muted2);
  transition:all .15s;
  border-left:3px solid transparent;
  cursor:pointer;text-decoration:none;
  border-radius:0;
}
.submenu-item:hover{background:rgba(255,255,255,.04);color:var(--text)}
.submenu-item.active{
  color:var(--accent);
  background:var(--accent-dim);
  border-left-color:var(--accent);
  font-weight:600;
}
.submenu-item .si-icon{
  width:18px;text-align:center;flex-shrink:0;font-size:13px;opacity:.8;
}
.submenu-badge{
  margin-left:auto;background:var(--red);color:#fff;
  font-size:10px;font-weight:700;padding:1px 6px;border-radius:999px;
}

/* ── Right Content Panel ─────────────────────────────────── */
.right-panel {
  margin-left:var(--sidebar-w);
  margin-top:var(--nav-h);
  flex:1;min-width:0;
  padding:28px 32px;
  position:relative;z-index:1;
  min-height:calc(100vh - var(--nav-h));
}

/* ── Page Header ─────────────────────────────────────────── */
.rp-header {
  margin-bottom:24px;
  padding-bottom:20px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:flex-start;justify-content:space-between;
  flex-wrap:wrap;gap:12px;
}
.rp-header h1{
  font-family:var(--display);font-size:1.6rem;font-weight:800;
  color:var(--text);margin-bottom:4px;letter-spacing:-.02em;
}
.breadcrumb{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:4px}
.breadcrumb a{color:var(--muted);transition:color .15s}
.breadcrumb a:hover{color:var(--accent)}
.sep{color:var(--border2);margin:0 2px}

/* ── CTA Row ─────────────────────────────────────────────── */
.rp-cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px;align-items:center}

/* ── Metric Strip ────────────────────────────────────────── */
.rp-metrics-strip {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:14px;margin-bottom:28px;
}
.metric-card {
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:18px 20px;
  display:flex;flex-direction:column;gap:4px;
  transition:border .2s,transform .2s;
  position:relative;overflow:hidden;
}
.metric-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--accent),transparent);
  opacity:0;transition:opacity .2s;
}
.metric-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.metric-card:hover::before{opacity:1}
.metric-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.metric-value{
  font-family:var(--display);font-size:1.8rem;font-weight:800;
  color:var(--text);line-height:1;letter-spacing:-.03em;
}
.metric-sub{font-size:11px;color:var(--muted);margin-top:2px}

/* ── Main Content Block ──────────────────────────────────── */
.rp-main-block{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:28px;
  margin-bottom:24px;
}
.rp-main-block h2{
  font-size:1.1rem;margin-bottom:16px;
  color:var(--text);
}

/* ── Scenario Block ──────────────────────────────────────── */
.rp-scenario-block {
  background:linear-gradient(135deg,rgba(0,212,255,.06),rgba(0,102,255,.04));
  border:1px solid rgba(0,212,255,.15);
  border-radius:var(--r-lg);padding:24px 28px;margin-bottom:24px;
}
.rp-scenario-block h3{color:var(--accent);font-size:14px;font-weight:700;margin-bottom:10px;text-transform:uppercase;letter-spacing:.05em}
.rp-scenario-block p{font-size:14px;color:var(--muted2);line-height:1.8}

/* ── Related Links ───────────────────────────────────────── */
.rp-related-links{margin-bottom:24px}
.rp-related-links h4{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:12px}
.links-grid{display:flex;flex-wrap:wrap;gap:8px}
.link-chip{
  padding:5px 14px;border-radius:999px;font-size:12px;
  background:var(--surface2);border:1px solid var(--border2);
  color:var(--muted2);transition:all .15s;
}
.link-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 18px;border-radius:var(--r);font-size:13px;font-weight:600;
  border:1px solid transparent;transition:all .15s;cursor:pointer;
  white-space:nowrap;text-decoration:none;font-family:var(--font);
}
.btn:active{transform:scale(.97)}

.btn-primary{
  background:var(--accent);color:#000;border-color:var(--accent);
  box-shadow:0 0 20px rgba(0,212,255,.3);
}
.btn-primary:hover{background:#33deff;box-shadow:0 0 32px rgba(0,212,255,.5);color:#000}

.btn-ghost{
  background:transparent;color:var(--text);border-color:var(--border2);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}

.btn-danger{
  background:rgba(255,59,92,.1);color:var(--red);border-color:rgba(255,59,92,.3);
}
.btn-danger:hover{background:rgba(255,59,92,.2)}

.btn-success{
  background:rgba(16,217,138,.1);color:var(--green);border-color:rgba(16,217,138,.3);
}
.btn-success:hover{background:rgba(16,217,138,.2)}

.btn-sm{padding:5px 12px;font-size:12px}
.btn-lg{padding:12px 28px;font-size:15px}

/* ── Cards ───────────────────────────────────────────────── */
.card,.component-block,.form-card {
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:24px;
}
.card-header{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;margin-bottom:16px;
  border-bottom:1px solid var(--border);
  font-weight:600;font-size:14px;
}

/* ── Stat Cards (Dashboard) ──────────────────────────────── */
.stat-card {
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:20px 24px;
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:12px;transition:all .2s;position:relative;overflow:hidden;
}
.stat-card::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--accent),transparent);
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.stat-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.stat-card:hover::after{transform:scaleX(1)}
.stat-icon{
  width:44px;height:44px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.stat-content{flex:1}
.stat-value{
  font-family:var(--display);font-size:2rem;font-weight:800;
  letter-spacing:-.03em;display:block;line-height:1;margin-bottom:4px;
}
.stat-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);display:block}
.stat-badge{
  font-size:10px;font-weight:700;padding:3px 8px;border-radius:999px;
  white-space:nowrap;align-self:flex-start;
}

/* ── Pills / Badges ──────────────────────────────────────── */
.pill,.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 9px;border-radius:999px;font-size:11px;font-weight:700;
  text-transform:uppercase;letter-spacing:.04em;
}
.pill-success,.badge-success{background:rgba(16,217,138,.12);color:var(--green);border:1px solid rgba(16,217,138,.25)}
.pill-danger,.badge-danger{background:rgba(255,59,92,.12);color:var(--red);border:1px solid rgba(255,59,92,.25)}
.pill-warning,.badge-warning{background:rgba(255,176,32,.12);color:var(--amber);border:1px solid rgba(255,176,32,.25)}
.pill-info,.badge-info{background:var(--accent-dim);color:var(--accent);border:1px solid rgba(0,212,255,.25)}
.pill-muted,.badge-muted{background:rgba(90,122,154,.1);color:var(--muted2);border:1px solid var(--border)}

/* ── Status Dots ─────────────────────────────────────────── */
.status-dot,.sdot{
  width:8px;height:8px;border-radius:50%;display:inline-block;flex-shrink:0;
}
.status-dot.online,.sdot.online{
  background:var(--green);
  box-shadow:0 0 0 2px rgba(16,217,138,.2);
  animation:breathe 2.4s ease-in-out infinite;
}
.status-dot.offline,.sdot.offline{background:var(--muted);opacity:.5}
.status-dot.provisioning{background:var(--amber)}
@keyframes breathe{0%,100%{box-shadow:0 0 0 2px rgba(16,217,138,.2)}50%{box-shadow:0 0 0 5px rgba(16,217,138,0)}}

/* ── Tables ──────────────────────────────────────────────── */
.data-table,.tbl{width:100%;border-collapse:collapse}
.data-table th,.tbl th{
  text-align:left;padding:10px 16px;
  font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;
  color:var(--muted);border-bottom:1px solid var(--border);
  background:var(--bg2);
}
.data-table td,.tbl td{
  padding:13px 16px;border-bottom:1px solid var(--border);
  font-size:13px;vertical-align:middle;
}
.data-table tr:last-child td,.tbl tr:last-child td{border:0}
.data-table tr:hover td,.tbl tr:hover td{background:rgba(255,255,255,.018)}
.table-wrapper{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--border)}

/* ── Forms ───────────────────────────────────────────────── */
.form-group{margin-bottom:18px}
.form-group label{
  display:block;font-size:11px;font-weight:700;
  text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted2);margin-bottom:7px;
}
.form-control{
  width:100%;padding:10px 14px;
  background:var(--bg2);border:1px solid var(--border2);
  border-radius:var(--r);color:var(--text);font-size:13px;font-family:var(--font);
  transition:border .15s,box-shadow .15s;outline:none;
}
.form-control:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(0,212,255,.12);
}
.form-control::placeholder{color:var(--muted)}
select.form-control option{background:var(--surface)}

/* ── Feature Grid ────────────────────────────────────────── */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(var(--cols,2),1fr);
  gap:16px;
}
.feature-item{display:flex;gap:14px;align-items:flex-start;padding:16px;background:var(--surface2);border-radius:var(--r);border:1px solid var(--border)}
.feature-icon{
  width:36px;height:36px;border-radius:8px;
  background:var(--accent-dim);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.feature-icon svg{width:18px;height:18px}
.feature-text h4{font-size:13px;font-weight:700;margin-bottom:4px}
.feature-text p{font-size:12px;color:var(--muted2);line-height:1.6}

/* ── Auth Pages ──────────────────────────────────────────── */
.auth-page-wrap{
  position:fixed;inset:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg);
  z-index:200;
}
.auth-card{
  background:var(--surface);
  border:1px solid var(--border2);
  border-radius:20px;
  padding:40px;width:100%;max-width:420px;
  box-shadow:0 40px 80px rgba(0,0,0,.6),0 0 0 1px rgba(0,212,255,.05);
}
.auth-logo{
  text-align:center;margin-bottom:32px;
  font-family:var(--display);font-size:1.5rem;font-weight:800;
  color:var(--text);letter-spacing:-.02em;
}
.auth-logo span{color:var(--accent)}
.auth-subtitle{text-align:center;font-size:13px;color:var(--muted2);margin-top:-24px;margin-bottom:28px}
.auth-tabs{
  display:flex;background:var(--bg2);border-radius:var(--r);
  padding:4px;margin-bottom:28px;gap:4px;
}
.auth-tab{
  flex:1;padding:8px;border-radius:6px;font-size:13px;font-weight:600;
  color:var(--muted2);background:none;border:none;
  cursor:pointer;transition:all .15s;
}
.auth-tab.on{background:var(--accent);color:#000}
.auth-divider{
  display:flex;align-items:center;gap:12px;margin:20px 0;
  font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;
}
.auth-divider::before,.auth-divider::after{
  content:'';flex:1;height:1px;background:var(--border);
}

/* ── Device Cards ────────────────────────────────────────── */
.device-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:18px 20px;
  transition:all .2s;position:relative;overflow:hidden;
}
.device-card::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--muted);transition:background .3s;
}
.device-card.online::before{background:var(--green)}
.device-card.offline::before{background:var(--red)}
.device-card.provisioning::before{background:var(--amber)}
.device-card:hover{border-color:var(--border2);transform:translateY(-2px)}

/* ── Battery Bar ─────────────────────────────────────────── */
.battery-bar{
  height:6px;background:var(--surface2);border-radius:3px;overflow:hidden;width:60px;
}
.battery-fill{
  height:100%;border-radius:3px;transition:width .6s ease;
  background:var(--green);
}

/* ── Alert Rows ──────────────────────────────────────────── */
.alert-row{
  display:flex;align-items:flex-start;gap:14px;
  padding:14px 0;border-bottom:1px solid var(--border);
}
.alert-row:last-child{border:0}

/* ── Status critical pulse ───────────────────────────────── */
.status-critical{
  animation:critPulse 2s ease-in-out infinite;
  border-color:var(--red) !important;
}
@keyframes critPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(255,59,92,0)}
  50%{box-shadow:0 0 0 8px rgba(255,59,92,0)}
}

/* ── Module color accents ────────────────────────────────── */
.module-health  {--mod:#ff3b5c;--mod-dim:rgba(255,59,92,.1)}
.module-vehicle {--mod:#3b82f6;--mod-dim:rgba(59,130,246,.1)}
.module-factory {--mod:#ffb020;--mod-dim:rgba(255,176,32,.1)}
.module-home    {--mod:#10d98a;--mod-dim:rgba(16,217,138,.1)}
.module-worker  {--mod:#f97316;--mod-dim:rgba(249,115,22,.1)}
.module-fleet   {--mod:#a855f7;--mod-dim:rgba(168,85,247,.1)}

/* ── Progress Bar ────────────────────────────────────────── */
.progress-bar{height:6px;background:var(--surface2);border-radius:3px;overflow:hidden}
.progress-fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--accent),#0066ff);transition:width .8s ease}

/* ── Empty State ─────────────────────────────────────────── */
.empty-state{
  text-align:center;padding:60px 24px;color:var(--muted2);
}
.empty-state svg{opacity:.3;margin:0 auto 16px}
.empty-state h3{font-size:16px;font-weight:700;color:var(--text);margin-bottom:8px}
.empty-state p{font-size:13px;margin-bottom:20px}

/* ── Toast / Flash ───────────────────────────────────────── */
@keyframes rt-flash-anim{
  0%{background:rgba(0,212,255,.25);color:var(--accent)}
  100%{background:transparent;color:inherit}
}
.rt-flash{animation:rt-flash-anim 700ms ease-out forwards;border-radius:4px;padding:0 3px}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

/* ── Transitions ─────────────────────────────────────────── */
.reveal{
  opacity:0;
  animation:revealUp .5s ease forwards;
}
@keyframes revealUp{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:translateY(0)}
}
.reveal:nth-child(1){animation-delay:.05s}
.reveal:nth-child(2){animation-delay:.1s}
.reveal:nth-child(3){animation-delay:.15s}
.reveal:nth-child(4){animation-delay:.2s}
.reveal:nth-child(5){animation-delay:.25s}

/* ── Code block ──────────────────────────────────────────── */
code,.code-inline{
  font-family:var(--mono);font-size:12px;
  background:var(--bg2);padding:2px 6px;border-radius:4px;color:var(--accent);
}
pre,.code-block{
  font-family:var(--mono);font-size:12px;line-height:1.8;
  background:var(--bg2);padding:16px;border-radius:var(--r);
  color:#8fbc8f;overflow-x:auto;border:1px solid var(--border);
}

/* ── Responsive ──────────────────────────────────────────── */
@media(max-width:1024px){
  .submenu-rail{display:none}
  .right-panel{margin-left:0}
  .feature-grid{--cols:1}
}
@media(max-width:768px){
  .right-panel{padding:16px}
  .rp-header h1{font-size:1.2rem}
  .rp-metrics-strip{grid-template-columns:1fr 1fr}
  .top-nav .nav-menu{display:none}
  .stat-value{font-size:1.6rem}
}
@media(max-width:480px){
  .rp-metrics-strip{grid-template-columns:1fr}
}