@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');

:root {
    --bg-color: #0a0a0a;
    --panel-bg: #141414;
    --border-color: #b87333;
    --accent-bronze: #cd7f32;
    --neon-blue: #0ff;
    --neon-orange: #ff8c00;
    --neon-red: #ff3333;
    --neon-green: #33ff33;
    --text-main: #d3d3d3;
    --font-mono: 'Share Tech Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background-color: var(--bg-color); color: var(--text-main); font-family: var(--font-mono); height: 100vh; overflow: hidden; background-image: radial-gradient(circle at 50% 50%, #1a1a1a 0%, #000 100%); }

.screen { width: 100%; height: 100%; position: absolute; top: 0; left: 0; display: flex; flex-direction: column; }
.hidden { display: none !important; }

/* Header */
.top-bar { height: 50px; border-bottom: 2px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; padding: 0 20px; background: #000; }
.logo { color: var(--border-color); font-weight: bold; text-shadow: 0 0 5px var(--accent-bronze); }
.main-nav { display: flex; gap: 15px; }
.main-nav a { color: #888; text-decoration: none; padding: 5px 10px; transition: 0.3s; }
.main-nav a.active { color: var(--neon-orange); border-bottom: 2px solid var(--neon-orange); }

/* Grid */
.dashboard-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: auto 1fr; gap: 15px; padding: 15px; height: calc(100vh - 50px); }
.panel { background: rgba(20, 20, 20, 0.9); border: 1px solid var(--border-color); padding: 20px; position: relative; border-radius: 4px; }

.kpi-title { font-size: 0.7rem; color: #888; text-transform: uppercase; margin-bottom: 10px; letter-spacing: 1px; }
.kpi-value { font-size: 1.8rem; font-weight: bold; }
.neon-blue { color: var(--neon-blue); text-shadow: 0 0 8px var(--neon-blue); }
.neon-green { color: var(--neon-green); text-shadow: 0 0 8px var(--neon-green); }

.chart-panel { grid-column: span 3; display: flex; flex-direction: column; min-height: 350px; }
.chart-container { flex-grow: 1; position: relative; }

/* Loader */
.loader-container { display: flex; justify-content: center; align-items: center; height: 100%; flex-direction: column; }
.loader { border: 3px solid #333; border-top: 3px solid var(--neon-orange); border-radius: 50%; width: 30px; height: 30px; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Login */
#login-screen { justify-content: center; align-items: center; background: #000; }
.login-box { background: var(--panel-bg); padding: 40px; border: 2px solid var(--border-color); text-align: center; width: 350px; }
.login-box h1 { color: var(--border-color); margin-bottom: 30px; letter-spacing: 4px; }
input { width: 100%; background: #000; border: 1px solid var(--border-color); color: var(--neon-orange); padding: 12px; font-family: var(--font-mono); margin-bottom: 20px; text-align: center; }
button { background: #000; color: var(--border-color); border: 1px solid var(--border-color); padding: 12px; width: 100%; cursor: pointer; font-family: var(--font-mono); }
button:hover { background: var(--border-color); color: #000; }

@media (max-width: 1024px) {
    .dashboard-grid { grid-template-columns: 1fr; overflow-y: auto; height: auto; }
    .chart-panel { grid-column: span 1; height: 400px; }
}