:root {
    --bg-color: #0a0a0f;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --primary: #00d4aa;
    --primary-hover: #00e5b8;
    --secondary: #7c3aed;
    --danger: #ff4444;
    --danger-hover: #ff5555;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

.mono {
    font-family: 'JetBrains Mono', monospace;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.p-0 { padding: 0 !important; }

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 1px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 20px;
    font-weight: 600;
    transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

/* Hero */
.hero {
    text-align: center;
    padding: 80px 20px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 10px;
    background: -webkit-linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.description {
    max-width: 600px;
    margin: 0 auto 30px;
    color: var(--text-muted);
}

/* Buttons */
.btn-primary, .btn-danger {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary);
    color: #000;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
    font-family: inherit;
    font-size: 1rem;
    text-align: center;
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }

/* Cards & Grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding-bottom: 60px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 24px;
    backdrop-filter: blur(5px);
}

.card h3 { margin-bottom: 10px; color: var(--primary); }
.card p { color: var(--text-muted); }

/* Mining Widget */
.mining-card {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.05);
    border-radius: 20px;
    font-size: 0.9rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.green { background: #00e676; box-shadow: 0 0 8px #00e676; }
.dot.yellow { background: #ffea00; }
.dot.red { background: #ff1744; }

.controls {
    text-align: left;
    margin-bottom: 20px;
}

.control-group { margin-bottom: 15px; }
.control-group label { display: block; margin-bottom: 5px; color: var(--text-muted); font-size: 0.9rem; }
input[type=range] { width: 100%; accent-color: var(--primary); }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.stat-box {
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 15px;
}

.stat-box h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.stat-box .val {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    font-weight: 700;
}

#toggle-mining { width: 100%; font-size: 1.1rem; padding: 15px; }

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}

.table th {
    color: var(--text-muted);
    font-weight: 600;
    background: rgba(0,0,0,0.2);
}

.table tr:last-child td { border-bottom: none; }

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    border-top: 1px solid var(--card-border);
    margin-top: 60px;
}