:root {
            --bg-color: #0f172a;
            --card-bg: #1e293b;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --accent: #38bdf8;
            --accent-hover: #264958;
            --border: #334155;
            --success: #22c55e;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            margin: 0;
            padding: 20px;
            line-height: 1.5;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        header {
            margin-bottom: 30px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 20px;
        }
        h1 { margin: 0 0 10px 0; font-size: 2rem; color: var(--accent); }
        .config-box {
            background-color: var(--card-bg);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid var(--border);
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            align-items: flex-end;
            margin-bottom: 30px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        label { font-size: 0.85rem; color: var(--text-muted); font-weight: 600; }
        input, select, button {
            background-color: var(--bg-color);
            border: 1px solid var(--border);
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 0.95rem;
        }
        input:focus, select:focus {
            outline: none;
            border-color: var(--accent);
        }
        button {
            background-color: var(--accent);
            color: #000;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: background-color 0.2s;
        }
        button:hover { background-color: var(--accent-hover); }
        .grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }
        @media (max-width: 900px) {
            .grid { grid-template-columns: 1fr; }
        }
        .panel {
            background-color: var(--card-bg);
            border-radius: 8px;
            border: 1px solid var(--border);
            padding: 20px;
        }
        .panel h2 { margin-top: 0; font-size: 1.3rem; border-bottom: 1px solid var(--border); padding-bottom: 10px; color: var(--accent); }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        th, td {
            padding: 12px;
            border-bottom: 1px solid var(--border);
        }
        th { color: var(--text-muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; }
        .clickable-team {
            color: var(--accent);
            cursor: pointer;
            font-weight: 500;
        }
        .clickable-team:hover {
            text-decoration: underline;
        }
        .team-subtitle {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: block;
        }
        .matchup-card {
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 12px;
            margin-bottom: 12px;
            background-color: var(--bg-color);
            cursor: pointer;
            transition: transform 0.1s;
        }
        .matchup-card:hover {
            transform: scale(1.01);
            border-color: var(--accent);
        }
        .matchup-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 4px 0;
        }
        .matchup-row.winner { font-weight: bold; color: var(--success); }
        /* Modal Styles */
        .modal {
            display: none;
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background-color: rgba(0,0,0,0.7);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        .modal-content {
            background-color: var(--card-bg);
            border-radius: 8px;
            border: 1px solid var(--border);
            width: 90%;
            max-width: 600px;
            max-height: 85vh;
            overflow-y: auto;
            padding: 25px;
            position: relative;
        }
        .close-btn {
            position: absolute;
            top: 15px; right: 15px;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-muted);
        }
        .close-btn:hover { color: var(--text-main); }
        .player-row {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.95rem;
        }
        .player-pos {
            display: inline-block;
            width: 50px;
            font-weight: bold;
            font-size: 0.8rem;
            padding: 2px 4px;
            border-radius: 4px;
            text-align: center;
            background-color: var(--border);
        }
        .pos-QB { background-color: #ff4a4a; color: #fff; }
        .pos-RB { background-color: #22c55e; color: #fff; }
        .pos-WR { background-color: #38bdf8; color: #000; }
        .pos-TE { background-color: #eab308; color: #000; }
        .pos-FLEX { background-color: #a855f7; color: #fff; }
        .pos-K { background-color: #ec4899; color: #fff; }
        .pos-DEF { background-color: #64748b; color: #fff; }
        .pos-BN { background-color: #334155; color: #94a3b8; }
        .loading { text-align: center; padding: 40px; color: var(--text-muted); }
        .error { color: #ef4444; padding: 10px; background: #451a1a; border-radius: 6px; margin-bottom: 20px; display: none; }
    

/* ==========================================================================
   MOBILE-FIRST RESPONSIVE DESIGN UTILITY OVERRIDES (<= 768px Viewports)
   ========================================================================== */
@media screen and (max-width: 768px) {
    /* 1. Main Dashboard Container Framework */
    body {
        padding: 12px;
    }

    .config-box {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }

    .config-box .form-group, 
    .config-box button {
        width: 100%; /* Forces selectors and sync buttons to stretch full-width on mobile */
        box-sizing: border-box;
    }

    /* 2. Grid Dashboard Section Layout */
    .grid {
        grid-template-columns: 1fr !important; /* Collapses multi-column views into a single neat stack */
        gap: 20px;
    }

    /* 3. Tables Optimization (Prevents Horizontal Page Bleeding) */
    .panel {
        padding: 14px;
        overflow-x: auto; /* Adds clean fallback swipe scrolling if names are extra long */
        -webkit-overflow-scrolling: touch;
    }

    table {
        width: 100%;
        min-width: 500px; /* Guarantees standard column spacing stays readable while swiping */
    }

    th, td {
        padding: 10px 8px;
        font-size: 0.85rem; /* Slightly dials back text scaling on small viewports */
    }

    /* 4. Modal Overlay Container Layout Scaling */
    .modal-content {
        width: 95% !important;
        margin: 5% auto;
        padding: 16px !important;
        max-height: 85vh; /* Prevents long rosters from overflowing beneath the device screen screen */
        overflow-y: auto;
    }

    /* 5. Tighten Player Element Spacing Row Lines */
    .player-row {
        padding: 10px 0 !important;
    }

    .player-pos {
        width: 32px !important;
        height: 20px !important;
        font-size: 0.7rem !important;
    }
}