:root {
    --bg-color: #0b0f19;
    --card-bg: #161b28;
    --primary: #3b82f6; /* Electric Blue */
    --secondary: #94a3b8;
    --success: #10b981;
}

body {
    background-color: var(--bg-color);
    font-family: 'Inter', sans-serif;
    color: white;
    margin: 0;
    line-height: 1.6;
}

.container { max-width: 1100px; margin: 0 auto; padding: 40px 20px; }

/* Hero Section */
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 40px; margin-bottom: 80px; }
.col-left { flex: 1; min-width: 300px; }
.col-right { flex: 1; min-width: 300px; }

h1.display-3 { font-size: 3rem; font-weight: 800; line-height: 1.1; margin-bottom: 20px; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); font-size: 1.2rem; }

/* Buttons */
.btn-group { display: flex; gap: 15px; margin-top: 30px; }
.btn { padding: 12px 25px; border-radius: 8px; text-decoration: none; font-weight: bold; transition: 0.3s; }
.btn-primary { background: var(--primary); color: white; }
.btn-outline { border: 1px solid var(--secondary); color: white; }
.btn:hover { opacity: 0.8; transform: translateY(-2px); }

/* Terminal Window Style */
.terminal-card { background: #000; border: 1px solid var(--primary); border-radius: 10px; overflow: hidden; box-shadow: 0 10px 30px rgba(59, 130, 246, 0.2); }
.terminal-header { background: #1a1a1a; padding: 10px; display: flex; gap: 5px; }
.terminal-header span { width: 10px; height: 10px; border-radius: 50%; background: #ff5f56; }
.terminal-header span:nth-child(2) { background: #ffbd2e; }
.terminal-header span:nth-child(3) { background: #27c93f; }
.terminal-body { padding: 20px; font-family: 'Courier New', monospace; font-size: 0.9rem; }
.cmd { color: var(--success); }
.status { color: #38bdf8; }
.status-success { color: var(--success); }

/* Grid System */
.category-title { margin: 40px 0 20px; border-left: 4px solid var(--primary); padding-left: 15px; font-size: 1.5rem; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }

.tool-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    text-decoration: none;
    color: white;
    border: 1px solid #1e293b;
    transition: 0.3s;
}

.tool-card:hover {
    border-color: var(--primary);
    background: #1e293b;
    transform: translateY(-5px);
}

.icon-box { font-size: 35px; color: var(--primary); margin-bottom: 15px; }
.tool-card h3 { margin: 10px 0; font-size: 1.2rem; }
.tool-card p { color: var(--secondary); font-size: 0.9rem; }

/* Responsive */
@media (max-width: 768px) {
    h1.display-3 { font-size: 2.2rem; }
    .row { flex-direction: column; text-align: center; }
    .btn-group { justify-content: center; }
}