:root {
    /* Color Variables */
    --clr-bg-light: #ffffff;
    --clr-text-light: #111111;
    --clr-text-muted-light: #666666;
    --clr-nav-bg-light: rgba(255, 255, 255, 0.7);
    --clr-border-light: rgba(0, 0, 0, 0.1);
    --clr-card-bg-light: #f9f9f9;
    
    --clr-bg-dark: #0a0a0a;
    --clr-text-dark: #ededed;
    --clr-text-muted-dark: #a1a1aa;
    --clr-nav-bg-dark: rgba(20, 20, 20, 0.7);
    --clr-border-dark: rgba(255, 255, 255, 0.1);
    --clr-card-bg-dark: #121212;

    --clr-accent: #0070f3;
    --clr-accent-hover: #005bb5;
    --clr-accent-glow: rgba(0, 112, 243, 0.15);

    /* Typography */
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Current Theme Variables (Default Light) */
    --bg: var(--clr-bg-light);
    --text: var(--clr-text-light);
    --text-muted: var(--clr-text-muted-light);
    --nav-bg: var(--clr-nav-bg-light);
    --border: var(--clr-border-light);
    --card-bg: var(--clr-card-bg-light);

    /* Layout */
    --max-width: 768px;
    --nav-height: 60px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-pill: 9999px;
}

[data-theme="dark"] {
    --bg: var(--clr-bg-dark);
    --text: var(--clr-text-dark);
    --text-muted: var(--clr-text-muted-dark);
    --nav-bg: var(--clr-nav-bg-dark);
    --border: var(--clr-border-dark);
    --card-bg: var(--clr-card-bg-dark);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* Base styles */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: 0.5rem;
}

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

a {
    color: var(--clr-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.icon-sm {
    width: 16px;
    height: 16px;
}

/* Edge Glow Effect for Dark Mode */
.glow-effect {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 9999;
    box-shadow: inset 0 0 100px var(--clr-accent-glow);
    opacity: 0;
    transition: opacity 0.5s ease;
}

[data-theme="dark"] .glow-effect {
    opacity: 1;
}

/* Top Bar */
.top-bar {
    width: 100%;
    max-width: var(--max-width);
    display: flex;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    z-index: 10;
}

.top-bar-left, .top-bar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Floating Navbar */
.floating-nav {
    position: sticky;
    top: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
    background-color: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    margin: 0 auto 2rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    padding: 0 0.5rem;
}

.nav-link {
    display: block;
    padding: 0.5rem 1.25rem;
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-pill);
    transition: all 0.2s ease;
}

.nav-link:hover {
    background-color: var(--border);
    color: var(--text);
}

.nav-link.active {
    background-color: var(--bg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    color: var(--text);
}

[data-theme="dark"] .nav-link.active {
    background-color: rgba(255,255,255,0.1);
}

.theme-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text);
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
    margin-right: 0.5rem;
}

.theme-btn:hover {
    background-color: var(--border);
}

/* Main Area */
#content-area {
    width: 100%;
    max-width: var(--max-width);
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* Footer */
footer {
    width: 100%;
    max-width: var(--max-width);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.social-links a:hover {
    color: var(--text);
}

.footer-text {
    font-size: 0.875rem;
    margin: 0;
}

/* Page Transitions */
.page-content {
    animation: fadeIn 0.4s ease forwards;
    opacity: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Adjustments */
@media (max-width: 600px) {
    .floating-nav {
        top: 1rem;
    }
    #content-area {
        padding: 1.5rem;
    }
}