/* CSS Reset & Global Variables */
:root {
    /* Color Palette - Light Mode */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-neon: 0 0 0 transparent;
}

[data-theme="dark"] {
    /* Color Palette - Deep Dark Mode with Neon Accents */
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #38bdf8; /* Neon Blue */
    --accent-secondary: #818cf8; /* Neon Purple */
    --accent-hover: #0ea5e9;
    --border-color: #1e293b;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.5);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.5);
    --shadow-neon: 0 0 15px rgba(56, 189, 248, 0.4);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-hover);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Hidden Utility */
.hidden {
    display: none !important;
}