:root {
    --bg-darker: #0d1116;
    --bg-sidebar: #161b21;
    --bg-card: #1c222a;
    --accent-blue: #3d89f5;
    --status-green: #4ade80;
    --border: #2d353f;
    --text-muted: #6c7683;
}

* { box-sizing: border-box; }
body { 
    background-color: var(--bg-darker); 
    color: #d1d5db; 
    font-family: 'Inter', sans-serif; 
    margin: 0; overflow: hidden; 
}

/* Sidebar */
.sidebar {
    width: 240px;
    background: var(--bg-sidebar);
    height: 100vh;
    border-right: 1px solid var(--border);
    padding: 20px;
    float: left;
}

.nav-item {
    padding: 12px;
    border-radius: 8px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    margin-bottom: 5px;
    cursor: pointer;
}

.nav-item.active {
    background: #2d353f;
    color: var(--accent-blue);
    border-left: 4px solid var(--accent-blue);
}

/* Przyciski Start/Stop */
.btn-container { display: flex; gap: 10px; margin-bottom: 20px; }
.btn {
    flex: 1;
    padding: 12px;
    border-radius: 6px;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 11px;
    border: 1px solid rgba(255,255,255,0.1);
    cursor: pointer;
}
.btn-start { background: linear-gradient(180deg, #4b5563 0%, #1f2937 100%); color: white; }
.btn-stop { background: linear-gradient(180deg, #991b1b 0%, #450a0a 100%); color: #fca5a5; }

/* Dashboard Cards */
.main-content { margin-left: 240px; padding: 25px; }
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.section-header {
    font-size: 10px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 15px;
    border-bottom: 1px solid #262c36;
    padding-bottom: 5px;
}

/* Wykres Analiza Fonograficzna */
.visualizer-box {
    background: #090c10;
    height: 250px;
    border: 1px solid #101418;
    position: relative;
    background-image: 
        linear-gradient(rgba(45, 53, 63, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(45, 53, 63, 0.2) 1px, transparent 1px);
    background-size: 30px 30px;
}

/* Fader (Suwak Gain) */
.fader-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 60px;
}
input[type=range][orient=vertical] {
    appearance: slider-vertical;
    width: 8px;
    height: 150px;
    background: #101418;
}

/* Tabela Alarmów */
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th { text-align: left; color: var(--text-muted); padding: 10px; border-bottom: 2px solid var(--border); }
td { padding: 12px; border-bottom: 1px solid var(--border); }
.status-tag { 
    padding: 4px 8px; border-radius: 4px; font-size: 10px; font-weight: bold; 
}
.tag-success { background: rgba(74, 222, 128, 0.1); color: #4ade80; }