@font-face{
  font-family:'Aktiv Grotesk';
  src:url('../fonts/AktivGrotesk-Regular.ttf') format('truetype');
  font-weight:400;
  font-style:normal;
  font-display:swap;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg-deep:#f0f2f5;
  --bg-surface:#ffffff;
  --bg-card:#ffffff;
  --bg-card-hover:#fafbfc;
  --bg-elevated:#f4f6f8;
  --border:#dadce0;
  --border-subtle:#e8eaed;
  --text-primary:#202124;
  --text-secondary:#5f6368;
  --text-muted:#9aa0a6;
  --accent:#347b71;
  --accent-dim:#347b7118;
  --accent-glow:#347b710d;
  --green:#1e8e3e;
  --green-dim:#1e8e3e14;
  --red:#d93025;
  --red-dim:#d9302514;
  --blue:#1a73e8;
  --blue-dim:#1a73e814;
  --purple:#9334e6;
  --purple-dim:#9334e614;
  --orange:#e8710a;
  --orange-dim:#e8710a14;
  --teal:#009688;
  --teal-dim:#00968814;
  --pink:#d01884;
  --pink-dim:#d0188414;
  --radius:12px;
  --radius-sm:8px;
  --radius-lg:16px;
  --sidebar-w:260px;
  --header-h:72px;
  --font-display:'Aktiv Grotesk',system-ui,sans-serif;
  --font-body:'Aktiv Grotesk',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --shadow-card:0 1px 3px rgba(60,64,67,.08), 0 1px 2px rgba(60,64,67,.04);
  --shadow-card-hover:0 4px 12px rgba(60,64,67,.12), 0 1px 4px rgba(60,64,67,.06);
}
html{font-size:15px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{font-family:var(--font-body);background:var(--bg-deep);color:var(--text-primary);min-height:100vh;overflow-x:hidden}
::selection{background:var(--accent);color:#fff}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}

/* --- SIDEBAR --- */
.sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);background:var(--bg-surface);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;z-index:100;transition:transform .3s ease}
.sidebar-brand{padding:24px 24px 20px;border-bottom:1px solid var(--border-subtle)}
.sidebar-brand h1{font-family:var(--font-display);font-size:1.15rem;color:var(--accent);letter-spacing:-.02em;line-height:1.2}
.sidebar-logo{width:100%;max-width:180px;height:auto;display:block}
.sidebar-brand span{font-family:var(--font-body);font-size:.7rem;font-weight:500;text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);display:block;margin-top:4px}

.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto}
.nav-section{margin-bottom:20px}
.nav-section-title{font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.14em;color:var(--text-muted);padding:0 12px 8px;display:flex;align-items:center;gap:6px}
.nav-section-title::after{content:'';flex:1;height:1px;background:var(--border-subtle)}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.85rem;font-weight:400;cursor:pointer;transition:all .2s;position:relative}
.nav-item:hover{background:var(--bg-elevated);color:var(--text-primary)}
.nav-item.active{background:var(--accent-dim);color:var(--accent)}
.nav-item.active::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:18px;background:var(--accent);border-radius:0 2px 2px 0}
.nav-icon{width:18px;height:18px;opacity:.5;flex-shrink:0}
.nav-item.active .nav-icon{opacity:1}
.nav-badge{margin-left:auto;font-size:.65rem;font-weight:600;padding:2px 7px;border-radius:10px;background:var(--blue-dim);color:var(--blue);font-family:var(--font-mono)}

.sidebar-footer{padding:16px;border-top:1px solid var(--border-subtle)}
.connection-status{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--text-secondary)}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 6px var(--green);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* --- MAIN --- */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}

/* --- HEADER --- */
.header{height:var(--header-h);border-bottom:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:var(--bg-surface);position:sticky;top:0;z-index:50}
.header-left{display:flex;align-items:center;gap:20px}
.header-title{font-family:var(--font-display);font-size:1.3rem;color:var(--text-primary)}
.header-subtitle{font-size:.75rem;color:var(--text-muted);font-weight:400}
.header-right{display:flex;align-items:center;gap:12px}
.date-selector{display:flex;align-items:center;gap:8px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 14px;font-size:.8rem;color:var(--text-secondary);cursor:pointer;transition:all .2s;font-family:var(--font-body)}
.date-selector:hover{border-color:var(--blue);color:var(--text-primary)}
.date-selector svg{width:14px;height:14px;opacity:.5}
.refresh-btn{display:flex;align-items:center;gap:6px;background:var(--blue);color:#fff;border:none;border-radius:var(--radius-sm);padding:8px 16px;font-size:.8rem;font-weight:600;cursor:pointer;font-family:var(--font-body);transition:all .2s}
.refresh-btn:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 2px 6px rgba(26,115,232,.3)}
.refresh-btn svg{width:14px;height:14px}
.refresh-btn.polling{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* --- CONTENT --- */
.content{padding:28px 32px 40px;flex:1}

/* --- SUMMARY STRIP --- */
.summary-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}
.summary-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius);padding:20px 22px;position:relative;overflow:hidden;transition:all .3s;box-shadow:var(--shadow-card)}
.summary-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.summary-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px}
.summary-card:nth-child(1)::before{background:linear-gradient(90deg,var(--accent),transparent)}
.summary-card:nth-child(2)::before{background:linear-gradient(90deg,var(--green),transparent)}
.summary-card:nth-child(3)::before{background:linear-gradient(90deg,var(--blue),transparent)}
.summary-card:nth-child(4)::before{background:linear-gradient(90deg,var(--purple),transparent)}
.summary-label{font-size:.7rem;font-weight:500;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:8px}
.summary-value{font-family:var(--font-mono);font-size:1.65rem;font-weight:500;color:var(--text-primary);line-height:1}
.summary-change{display:inline-flex;align-items:center;gap:3px;font-size:.72rem;font-weight:500;margin-top:8px;padding:3px 8px;border-radius:6px}
.summary-change.up{background:var(--green-dim);color:var(--green)}
.summary-change.down{background:var(--red-dim);color:var(--red)}
.summary-sparkline{position:absolute;bottom:0;right:0;width:100px;height:40px;opacity:.25}

/* --- CHANNEL GRID --- */
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.section-title{font-family:var(--font-display);font-size:1.1rem;color:var(--text-primary)}
.section-meta{font-size:.72rem;color:var(--text-muted)}
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:32px}
.channel-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius);padding:0;overflow:hidden;transition:all .3s;position:relative;box-shadow:var(--shadow-card)}
.channel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.channel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 12px}
.channel-info{display:flex;align-items:center;gap:10px}
.channel-icon{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:700;flex-shrink:0}
.channel-logo{width:32px;height:32px;border-radius:var(--radius-sm);object-fit:contain;flex-shrink:0}
.channel-name{font-size:.85rem;font-weight:600;color:var(--text-primary)}
.channel-source{font-size:.65rem;color:var(--text-muted);margin-top:1px}
.channel-status{display:flex;align-items:center;gap:5px;font-size:.65rem;font-weight:500;padding:3px 9px;border-radius:10px}
.channel-status.live{background:var(--green-dim);color:var(--green)}
.channel-status.live .dot{width:5px;height:5px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
.channel-status.pending{background:var(--orange-dim);color:var(--orange)}
.channel-status.auth{background:var(--red-dim);color:var(--red)}

.channel-metrics{padding:4px 20px 16px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.metric{padding:10px 12px;background:var(--bg-elevated);border-radius:var(--radius-sm)}
.metric-label{font-size:.63rem;font-weight:500;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:4px}
.metric-row{display:flex;align-items:baseline;justify-content:space-between}
.metric-value{font-family:var(--font-mono);font-size:1.05rem;font-weight:500;color:var(--text-primary)}
.metric-delta{font-size:.63rem;font-weight:500}
.metric-delta.up{color:var(--green)}
.metric-delta.down{color:var(--red)}

.channel-chart{padding:0 20px 16px;height:64px}
.channel-chart canvas{width:100%;height:100%}

/* --- BOTTOM PANELS --- */
.bottom-grid{display:grid;grid-template-columns:2fr 1fr;gap:16px}
.panel{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card)}
.panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 12px}
.panel-title{font-size:.85rem;font-weight:600;color:var(--text-primary)}
.panel-action{font-size:.7rem;color:var(--blue);cursor:pointer;font-weight:500}
.panel-body{padding:0 20px 16px}

/* Chart panel */
.chart-container{height:220px;position:relative}
.chart-container canvas{width:100%;height:100%}

/* Feed panel */
.feed-item{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--border-subtle)}
.feed-item:last-child{border-bottom:none}
.feed-dot{width:8px;height:8px;border-radius:50%;margin-top:5px;flex-shrink:0}
.feed-content{flex:1;min-width:0}
.feed-text{font-size:.78rem;color:var(--text-secondary);line-height:1.4}
.feed-text strong{color:var(--text-primary);font-weight:500}
.feed-time{font-size:.63rem;color:var(--text-muted);margin-top:2px;font-family:var(--font-mono)}

/* --- POLLING OVERLAY --- */
.polling-bar{position:fixed;top:0;left:var(--sidebar-w);right:0;height:3px;z-index:200;overflow:hidden;opacity:0;transition:opacity .3s}
.polling-bar.active{opacity:1}
.polling-bar-inner{height:100%;width:30%;background:linear-gradient(90deg,transparent,var(--blue),transparent);animation:polling-slide 1.5s ease-in-out infinite}
@keyframes polling-slide{0%{transform:translateX(-100%)}100%{transform:translateX(400%)}}

/* --- MOBILE --- */
.mobile-toggle{display:none;position:fixed;top:16px;left:16px;z-index:200;width:40px;height:40px;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border);align-items:center;justify-content:center;cursor:pointer;color:var(--text-primary)}
@media(max-width:1200px){
  .channel-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .polling-bar{left:0}
  .mobile-toggle{display:flex}
  .summary-strip{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:1fr}
  .bottom-grid{grid-template-columns:1fr}
}
@media(max-width:500px){
  .summary-strip{grid-template-columns:1fr}
  .content{padding:20px 16px}
  .header{padding:0 16px}
}

/* --- ANIMATIONS --- */
.fade-in{opacity:0;transform:translateY(12px);animation:fadeIn .5s ease forwards}
@keyframes fadeIn{to{opacity:1;transform:translateY(0)}}
.stagger-1{animation-delay:.05s}
.stagger-2{animation-delay:.1s}
.stagger-3{animation-delay:.15s}
.stagger-4{animation-delay:.2s}
.stagger-5{animation-delay:.25s}
.stagger-6{animation-delay:.3s}
.stagger-7{animation-delay:.35s}
.stagger-8{animation-delay:.4s}