/* Reset & Variables */
:root {
    --bg-color: #09090b;
    --card-bg: rgba(24, 24, 27, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --primary-color: #3b82f6; /* Blue-500 */
    --primary-hover: #2563eb;
    --success-color: #22c55e;
    --danger-color: #ef4444;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius: 0.5rem;
    --header-height: 60px;
    --sidebar-width: 240px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    height: 100vh;
    overflow: hidden;
}

/* Utilities */
.hidden { display: none !important; }
.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    font-family: var(--font-sans);
}

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

.btn-secondary {
    background-color: rgba(255,255,255,0.1);
    color: var(--text-primary);
}
.btn-secondary:hover { background-color: rgba(255,255,255,0.2); }

.btn-sm { padding: 0.25rem 0.75rem; font-size: 0.875rem; }
.full-width { width: 100%; }

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
}
.icon-btn:hover { color: var(--text-primary); }

input, select, textarea {
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: var(--radius);
    width: 100%;
    font-family: var(--font-sans);
}
input:focus, select:focus {
    outline: 2px solid var(--primary-color);
    border-color: transparent;
}

/* Typography */
h1, h2, h3 { font-weight: 600; letter-spacing: -0.025em; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1rem; color: var(--text-secondary); margin-bottom: 0.5rem; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }