:root {
    --bg-color: #0d0d0d;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --accent-primary: #ff2a2a;
    --accent-secondary: #00ffff; /* Subtle cyan */
    --card-bg: #151515;
    --card-border: #222222;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none; /* Hide default cursor */
    animation: pageFadeIn 0.5s ease-out forwards;
}

body.custom-cursor-active,
body.custom-cursor-active * {
    cursor: none !important;
}

@keyframes pageFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* Custom Cursor */
.cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 6px;
    height: 6px;
    background-color: var(--accent-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 0 10px 2px rgba(255, 42, 42, 0.8);
    transition: transform 0.1s ease-out;
}

.cursor-trail {
    position: fixed;
    top: 0;
    left: 0;
    width: 24px;
    height: 24px;
    border: 1px solid rgba(255, 42, 42, 0.3);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transition: width 0.2s, height 0.2s, background-color 0.2s;
    transform: translate(-50%, -50%); /* Centering trail */
}

/* Cursor Hover State */
body.hovering .cursor-dot {
    transform: scale(1.5);
    box-shadow: 0 0 15px 4px rgba(255, 42, 42, 1);
}

body.hovering .cursor-trail {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 42, 42, 0.1);
    border-color: rgba(255, 42, 42, 0.5);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
}

.nav-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 1px;
}

.nav-brand span {
    color: var(--accent-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-primary);
    transition: width var(--transition-fast);
    box-shadow: 0 0 8px var(--accent-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--text-main);
    text-shadow: 0 0 5px rgba(255,255,255,0.3);
}

/* Global Container */
main {
    padding-top: 100px;
    min-height: calc(100vh - 80px); /* Adjust based on footer */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Headings */
.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 4px;
    background: var(--accent-primary);
    box-shadow: 0 0 10px var(--accent-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 1px;
    border: 1px solid var(--accent-primary);
    background: transparent;
    color: var(--accent-primary);
    cursor: pointer; /* fallback if custom fails */
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: rgba(255, 42, 42, 0.1);
    transition: width var(--transition-fast);
    z-index: 0;
}

.btn:hover::before {
    width: 100%;
}

.btn:hover {
    box-shadow: 0 0 15px rgba(255, 42, 42, 0.5);
    background: var(--accent-primary);
    color: var(--bg-color);
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: var(--accent-primary);
    color: var(--bg-color);
    box-shadow: 0 0 10px rgba(255, 42, 42, 0.3);
}
.btn-primary:hover {
    box-shadow: 0 0 20px rgba(255, 42, 42, 0.8);
    background: transparent;
    color: var(--accent-primary);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 2rem;
    border-radius: 4px;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 42, 42, 0.5);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(255, 42, 42, 0.1);
}

/* Card Glow Effect Insert */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: transparent;
    transition: background var(--transition-fast);
}

.card:hover::before {
    background: var(--accent-primary);
    box-shadow: 0 0 10px var(--accent-primary);
}

/* Tags/Badges */
.badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 20px;
    font-family: var(--font-heading);
}

/* Footer */
footer {
    border-top: 1px solid var(--card-border);
    padding: 2rem 5%;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    background: var(--bg-color);
    margin-top: 4rem;
}

/* Animations (Intersection Observer Targets) */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-smooth), transform var(--transition-smooth);
    will-change: opacity, transform;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Optional Glitch/Terminal subtle effect for headers */
.terminal-text {
    font-family: monospace;
    color: var(--accent-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* We'll add a mobile menu if needed, but for now simple hidden */
    }
    /* Can add basic mobile menu styling later */
    .container {
        padding: 0 1rem;
    }
}