/* ───────────── RESET & BASE ───────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg-deep:#0a0e27;--bg-card:rgba(26,31,58,.55);--bg-card-hover:rgba(26,31,58,.75);
  --glass-border:rgba(255,255,255,.08);--glass-border-hover:rgba(255,255,255,.15);
  --accent:#4a6cf7;--accent-glow:rgba(74,108,247,.35);
  --coral:#ff6b6b;--emerald:#2ecc71;--amber:#f39c12;--purple:#a855f7;
  --text:#e2e8f0;--text-dim:#94a3b8;--text-bright:#f8fafc;
  --radius:16px;--radius-sm:10px;--radius-xs:6px;
  --shadow:0 8px 32px rgba(0,0,0,.45);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Inter',system-ui,sans-serif;background:var(--bg-deep);color:var(--text);
  min-height:100vh;overflow-x:hidden;line-height:1.6;
}
/* animated bg mesh */
body::before{
  content:'';position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%,rgba(74,108,247,.12) 0%,transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%,rgba(168,85,247,.10) 0%,transparent 55%),
    radial-gradient(ellipse 50% 40% at 50% 50%,rgba(255,107,107,.06) 0%,transparent 50%),
    linear-gradient(180deg,#0a0e27 0%,#0f1535 40%,#1a1f3a 100%);
}
/* floating orbs */
body::after{
  content:'';position:fixed;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(74,108,247,.08),transparent 70%);
  top:-150px;right:-200px;z-index:-1;
  animation:orbFloat 20s ease-in-out infinite alternate;
}
@keyframes orbFloat{0%{transform:translate(0,0) scale(1)}100%{transform:translate(-80px,120px) scale(1.15)}}

/* scrollbar */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(74,108,247,.35);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:rgba(74,108,247,.55)}

/* ───────────── UTILITY ───────────── */
.container{max-width:1360px;margin:0 auto;padding:0 24px}
.glass{
  background:var(--bg-card);backdrop-filter:blur(20px) saturate(1.4);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  border:1px solid var(--glass-border);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:var(--transition);
}
.glass:hover{border-color:var(--glass-border-hover);background:var(--bg-card-hover)}
.section{padding:80px 0}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:2px;
  color:var(--accent);margin-bottom:12px;
}
.section-label .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
.section-title{font-size:2rem;font-weight:800;color:var(--text-bright);margin-bottom:8px}
.section-subtitle{font-size:1rem;color:var(--text-dim);max-width:540px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
@media(max-width:1024px){.grid-4,.grid-5{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.grid-2,.grid-3,.grid-4,.grid-5{grid-template-columns:1fr}.section{padding:48px 0}}

/* ───────────── HEADER ───────────── */
.header{
  position:sticky;top:0;z-index:100;padding:0 24px;
  background:rgba(10,14,39,.6);backdrop-filter:blur(24px) saturate(1.6);
  -webkit-backdrop-filter:blur(24px) saturate(1.6);
  border-bottom:1px solid var(--glass-border);
}
.header-inner{
  max-width:1360px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo-group{display:flex;align-items:center;gap:14px}
.logo-icon{
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--purple));
  display:grid;place-items:center;font-size:20px;
  box-shadow:0 0 24px var(--accent-glow);position:relative;overflow:hidden;
}
.logo-icon::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 40%,rgba(255,255,255,.15) 50%,transparent 60%);
  animation:shimmer 3s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.logo-icon svg{width:22px;height:22px;fill:#fff;position:relative;z-index:1}
.logo-text h1{font-size:1.15rem;font-weight:800;color:var(--text-bright);letter-spacing:-.3px}
.logo-text p{font-size:.7rem;color:var(--text-dim);letter-spacing:1.5px;text-transform:uppercase;font-weight:500}

.header-nav{display:flex;align-items:center;gap:6px}
.header-nav a{
  padding:8px 16px;border-radius:var(--radius-xs);font-size:.82rem;font-weight:500;
  color:var(--text-dim);text-decoration:none;transition:var(--transition);
}
.header-nav a:hover,.header-nav a.active{color:var(--text-bright);background:rgba(74,108,247,.12)}
.health-dot{
  width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:6px;
  background:var(--emerald);box-shadow:0 0 8px rgba(46,204,113,.5);
  animation:pulse 2s infinite;
}
.health-dot.offline{background:var(--coral);box-shadow:0 0 8px rgba(255,107,107,.5)}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;
  border-radius:99px;font-size:.75rem;font-weight:600;
  background:rgba(46,204,113,.1);border:1px solid rgba(46,204,113,.25);color:var(--emerald);
}
.status-badge.offline{background:rgba(255,107,107,.1);border-color:rgba(255,107,107,.25);color:var(--coral)}

/* ───────────── HERO ───────────── */
.hero{
  padding:100px 0 60px;text-align:center;position:relative;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 20px;border-radius:99px;
  background:rgba(74,108,247,.1);border:1px solid rgba(74,108,247,.25);
  font-size:.78rem;font-weight:600;color:var(--accent);margin-bottom:28px;
  animation:fadeUp .7s ease-out;
}
.hero h2{
  font-size:clamp(2.4rem,5vw,3.6rem);font-weight:900;letter-spacing:-.5px;
  color:var(--text-bright);margin-bottom:16px;
  animation:fadeUp .7s ease-out .1s both;
}
.hero h2 span{
  background:linear-gradient(135deg,var(--accent),var(--purple),var(--coral));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p{
  font-size:1.1rem;color:var(--text-dim);max-width:600px;margin:0 auto 36px;
  animation:fadeUp .7s ease-out .2s both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ───────────── STAT CARDS ───────────── */
.stat-card{padding:28px;border-radius:var(--radius);position:relative;overflow:hidden}
.stat-card .stat-icon{
  width:48px;height:48px;border-radius:12px;display:grid;place-items:center;
  font-size:22px;margin-bottom:16px;
}
.stat-card .stat-value{font-size:2rem;font-weight:800;color:var(--text-bright);line-height:1}
.stat-card .stat-label{font-size:.82rem;color:var(--text-dim);margin-top:6px;font-weight:500}
.stat-card .stat-trend{
  display:inline-flex;align-items:center;gap:4px;margin-top:10px;
  font-size:.75rem;font-weight:600;padding:4px 10px;border-radius:99px;
}
.stat-card .stat-trend.up{color:var(--emerald);background:rgba(46,204,113,.1)}
.stat-card .stat-trend.down{color:var(--coral);background:rgba(255,107,107,.1)}
.stat-card::after{
  content:'';position:absolute;top:0;right:0;width:120px;height:120px;border-radius:50%;
  opacity:.06;filter:blur(40px);
}
.stat-card:nth-child(1) .stat-icon{background:rgba(74,108,247,.15);color:var(--accent)}
.stat-card:nth-child(1)::after{background:var(--accent)}
.stat-card:nth-child(2) .stat-icon{background:rgba(255,107,107,.15);color:var(--coral)}
.stat-card:nth-child(2)::after{background:var(--coral)}
.stat-card:nth-child(3) .stat-icon{background:rgba(243,156,18,.15);color:var(--amber)}
.stat-card:nth-child(3)::after{background:var(--amber)}
.stat-card:nth-child(4) .stat-icon{background:rgba(46,204,113,.15);color:var(--emerald)}
.stat-card:nth-child(4)::after{background:var(--emerald)}
.stat-card:nth-child(5) .stat-icon{background:rgba(168,85,247,.15);color:var(--purple)}
.stat-card:nth-child(5)::after{background:var(--purple)}

/* ───────────── UPLOAD PANEL ───────────── */
.upload-section{padding:0 0 80px}
.upload-tabs{display:flex;gap:4px;margin-bottom:24px;background:rgba(15,21,53,.6);padding:4px;border-radius:var(--radius-sm);width:fit-content}
.upload-tab{
  padding:10px 28px;border-radius:var(--radius-xs);font-size:.85rem;font-weight:600;
  cursor:pointer;transition:var(--transition);color:var(--text-dim);border:none;background:transparent;
  display:flex;align-items:center;gap:8px;
}
.upload-tab.active{background:var(--accent);color:#fff;box-shadow:0 4px 16px var(--accent-glow)}
.upload-tab:not(.active):hover{color:var(--text-bright);background:rgba(255,255,255,.05)}
.upload-tab svg{width:16px;height:16px}
.upload-tab.live{color:var(--coral)}
.upload-tab.live.active{background:var(--coral);box-shadow:0 4px 16px rgba(255,107,107,.4)}

.upload-panel{display:none}
.upload-panel.active{display:block;animation:fadeUp .4s ease-out}
.dropzone{
  border:2px dashed rgba(74,108,247,.3);border-radius:var(--radius);
  padding:60px 40px;text-align:center;cursor:pointer;transition:var(--transition);
  position:relative;overflow:hidden;
}
.dropzone:hover,.dropzone.dragover{
  border-color:var(--accent);background:rgba(74,108,247,.05);
  box-shadow:inset 0 0 60px rgba(74,108,247,.05);
}
.dropzone.dragover{animation:nonex .3s ease}
.dropzone-icon{
  width:72px;height:72px;border-radius:50%;margin:0 auto 20px;
  background:rgba(74,108,247,.1);display:grid;place-items:center;
  transition:var(--transition);
}
.dropzone:hover .dropzone-icon{transform:scale(1.08);background:rgba(74,108,247,.18)}
.dropzone-icon svg{width:32px;height:32px;color:var(--accent)}
.dropzone h3{font-size:1.1rem;font-weight:700;color:var(--text-bright);margin-bottom:8px}
.dropzone p{font-size:.85rem;color:var(--text-dim)}
.dropzone .browse-link{color:var(--accent);font-weight:600;text-decoration:underline;cursor:pointer}
.dropzone input[type="file"]{display:none}

.file-preview{
  margin-top:20px;display:none;padding:16px;border-radius:var(--radius-sm);
  background:rgba(15,21,53,.5);border:1px solid var(--glass-border);
  align-items:center;gap:16px;
}
.file-preview.visible{display:flex}
.file-preview img,.file-preview video{
  width:80px;height:80px;object-fit:cover;border-radius:var(--radius-xs);
  border:1px solid var(--glass-border);
}
.file-info{flex:1}
.file-info .file-name{font-size:.88rem;font-weight:600;color:var(--text-bright)}
.file-info .file-size{font-size:.78rem;color:var(--text-dim)}
.file-remove{
  width:32px;height:32px;border-radius:50%;border:none;
  background:rgba(255,107,107,.12);color:var(--coral);cursor:pointer;
  display:grid;place-items:center;transition:var(--transition);font-size:16px;
}
.file-remove:hover{background:rgba(255,107,107,.25);transform:scale(1.1)}

.btn{
  display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border:none;
  border-radius:var(--radius-sm);font-family:inherit;font-size:.88rem;font-weight:600;
  cursor:pointer;transition:var(--transition);
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),#6366f1);color:#fff;
  box-shadow:0 4px 20px var(--accent-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-outline{
  background:transparent;color:var(--accent);
  border:1px solid rgba(74,108,247,.3);
}
.btn-outline:hover{background:rgba(74,108,247,.08);border-color:var(--accent)}
.btn svg{width:16px;height:16px}

.progress-bar-wrap{
  width:100%;height:4px;background:rgba(255,255,255,.06);border-radius:99px;
  margin-top:16px;overflow:hidden;display:none;
}
.progress-bar-wrap.visible{display:block}
.progress-bar{
  height:100%;border-radius:99px;
  background:linear-gradient(90deg,var(--accent),var(--purple));
  width:0%;transition:width .4s ease;
}

/* ───────────── RESULTS ───────────── */
.results-section{display:none;animation:fadeUp .5s ease-out}
.results-section.visible{display:block}
.result-image-wrap{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--glass-border);
  position:relative;
}
.result-image-wrap img{width:100%;display:block;max-height:500px;object-fit:contain;background:#000}
.result-overlay{
  position:absolute;bottom:0;left:0;right:0;padding:16px 20px;
  background:linear-gradient(transparent,rgba(0,0,0,.8));
  display:flex;align-items:center;justify-content:space-between;
}
.result-overlay .tag{
  padding:5px 12px;border-radius:99px;font-size:.72rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.5px;
}
.tag-danger{background:rgba(255,107,107,.2);color:var(--coral);border:1px solid rgba(255,107,107,.3)}
.tag-warning{background:rgba(243,156,18,.2);color:var(--amber);border:1px solid rgba(243,156,18,.3)}
.tag-success{background:rgba(46,204,113,.2);color:var(--emerald);border:1px solid rgba(46,204,113,.3)}

.violation-cards{display:grid;gap:16px;margin-top:24px}
.violation-card{
  padding:20px;display:flex;align-items:flex-start;gap:16px;
  animation:fadeUp .4s ease-out both;
}
.violation-card:nth-child(2){animation-delay:.08s}
.violation-card:nth-child(3){animation-delay:.16s}
.v-icon{
  width:44px;height:44px;border-radius:10px;display:grid;place-items:center;flex-shrink:0;
  font-size:20px;
}
.v-icon.danger{background:rgba(255,107,107,.12);color:var(--coral)}
.v-icon.warning{background:rgba(243,156,18,.12);color:var(--amber)}
.v-icon.info{background:rgba(74,108,247,.12);color:var(--accent)}
.v-details{flex:1}
.v-details h4{font-size:.95rem;font-weight:700;color:var(--text-bright);margin-bottom:4px}
.v-details p{font-size:.8rem;color:var(--text-dim)}
.confidence-bar{
  width:100%;height:6px;background:rgba(255,255,255,.06);border-radius:99px;margin-top:10px;overflow:hidden;
}
.confidence-fill{height:100%;border-radius:99px;transition:width .8s ease}
.confidence-label{font-size:.72rem;color:var(--text-dim);margin-top:4px;display:flex;justify-content:space-between}
.v-severity{
  padding:4px 10px;border-radius:99px;font-size:.68rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.5px;flex-shrink:0;margin-top:2px;
}
.severity-high{background:rgba(255,107,107,.15);color:var(--coral)}
.severity-medium{background:rgba(243,156,18,.15);color:var(--amber)}
.severity-low{background:rgba(46,204,113,.15);color:var(--emerald)}

/* ───────────── ANALYTICS ───────────── */
.chart-container{padding:28px;min-height:340px;position:relative}
.chart-container h3{font-size:1rem;font-weight:700;color:var(--text-bright);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.chart-container h3 .chart-dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.chart-wrap{position:relative;height:280px}
.chart-wrap canvas{max-height:280px}

/* ───────────── VIOLATION HISTORY TABLE ───────────── */
.table-controls{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.search-input{
  flex:1;min-width:200px;padding:10px 16px 10px 40px;border:1px solid var(--glass-border);
  border-radius:var(--radius-sm);background:rgba(15,21,53,.6);color:var(--text);
  font-family:inherit;font-size:.85rem;transition:var(--transition);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 24 24'%3E%3Cpath d='M21 21l-4.35-4.35M11 19a8 8 0 100-16 8 8 0 000 16z' stroke='%2394a3b8' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:12px center;
}
.search-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.filter-select{
  padding:10px 16px;border:1px solid var(--glass-border);border-radius:var(--radius-sm);
  background:rgba(15,21,53,.6);color:var(--text);font-family:inherit;font-size:.85rem;
  cursor:pointer;transition:var(--transition);
}
.filter-select:focus{outline:none;border-color:var(--accent)}
.filter-select option{background:#0f1535;color:var(--text)}

.data-table{width:100%;border-collapse:collapse}
.data-table th{
  padding:14px 16px;text-align:left;font-size:.72rem;font-weight:700;
  text-transform:uppercase;letter-spacing:1px;color:var(--text-dim);
  border-bottom:1px solid var(--glass-border);white-space:nowrap;
}
.data-table td{
  padding:14px 16px;font-size:.85rem;color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.03);vertical-align:middle;
}
.data-table tbody tr{transition:var(--transition)}
.data-table tbody tr:hover{background:rgba(74,108,247,.04)}
.table-wrap{overflow-x:auto;max-height:440px;overflow-y:auto}
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:20px}
.page-btn{
  width:36px;height:36px;border:1px solid var(--glass-border);border-radius:var(--radius-xs);
  background:transparent;color:var(--text-dim);font-family:inherit;font-size:.82rem;
  cursor:pointer;transition:var(--transition);display:grid;place-items:center;
}
.page-btn:hover,.page-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ───────────── E-CHALLAN ───────────── */
.challan-card{
  padding:32px;display:flex;align-items:center;gap:28px;
  background:linear-gradient(135deg,rgba(74,108,247,.08),rgba(168,85,247,.06));
  border:1px solid rgba(74,108,247,.15);
}
.challan-card .challan-icon{
  width:72px;height:72px;border-radius:16px;
  background:linear-gradient(135deg,var(--accent),var(--purple));
  display:grid;place-items:center;flex-shrink:0;
  box-shadow:0 8px 32px var(--accent-glow);
}
.challan-card .challan-icon svg{width:32px;height:32px;color:#fff}
.challan-info{flex:1}
.challan-info h3{font-size:1.15rem;font-weight:700;color:var(--text-bright);margin-bottom:4px}
.challan-info p{font-size:.88rem;color:var(--text-dim)}
.challan-actions{display:flex;gap:10px;flex-shrink:0}

/* ───────────── TOAST ───────────── */
.toast-container{position:fixed;top:84px;right:24px;z-index:999;display:flex;flex-direction:column;gap:10px}
.toast{
  padding:14px 20px;border-radius:var(--radius-sm);display:flex;align-items:center;gap:12px;
  font-size:.85rem;font-weight:500;min-width:300px;max-width:420px;
  animation:slideInRight .35s ease-out;
  box-shadow:0 12px 40px rgba(0,0,0,.35);
}
.toast.success{background:rgba(46,204,113,.15);border:1px solid rgba(46,204,113,.3);color:var(--emerald)}
.toast.error{background:rgba(255,107,107,.15);border:1px solid rgba(255,107,107,.3);color:var(--coral)}
.toast.info{background:rgba(74,108,247,.15);border:1px solid rgba(74,108,247,.3);color:var(--accent)}
@keyframes slideInRight{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* ───────────── LOADING SKELETON ───────────── */
.skeleton{
  background:linear-gradient(90deg,rgba(255,255,255,.03) 25%,rgba(255,255,255,.06) 50%,rgba(255,255,255,.03) 75%);
  background-size:200% 100%;animation:skeletonShimmer 1.5s infinite;border-radius:var(--radius-xs);
}
@keyframes skeletonShimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ───────────── EMPTY STATE ───────────── */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-dim)}
.empty-state svg{width:64px;height:64px;margin-bottom:16px;opacity:.3}
.empty-state h4{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:6px}
.empty-state p{font-size:.85rem}

/* ───────────── FOOTER ───────────── */
.footer{
  padding:40px 0;border-top:1px solid var(--glass-border);text-align:center;
  font-size:.8rem;color:var(--text-dim);
}
.footer a{color:var(--accent);text-decoration:none}
.footer a:hover{text-decoration:underline}

/* ───────────── SPINNER ───────────── */
.spinner{
  width:20px;height:20px;border:2px solid rgba(255,255,255,.2);
  border-top-color:#fff;border-radius:50%;
  animation:spin .6s linear infinite;display:inline-block;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ───────────── NAV RESPONSIVE ───────────── */
@media(max-width:768px){
  .header-nav{display:none}
  .hero h2{font-size:2rem}
  .challan-card{flex-direction:column;text-align:center}
  .challan-actions{flex-direction:column;width:100%}
  .challan-actions .btn{width:100%;justify-content:center}
}