:root {
    --bg-deep: #020408;
    --accent-cyan: #4f66cc;
    --accent-warn: #b98282;
    --glass-bg: rgba(10, 20, 30, 0.7);
    --glass-border: rgba(79, 102, 204, 0.15);
    --text-main: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.7);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

canvas#network {
    z-index: 0;
    opacity: 0.7;
}

canvas#globe {
    z-index: 2;
    pointer-events: auto;
    outline: none;
}

.veil {
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, var(--bg-deep) 90%);
    z-index: 1;
    pointer-events: none;
}

.container {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 2rem;
    animation: fadeIn 1.5s ease-out;
    width: 100%;
    margin: 4rem auto;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1.word-logo {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: linear-gradient(180deg, #f2f4ff, #cbd3ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 2rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
    opacity: 0.3;
}

.intro-card {
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.glass-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.glass-card p {
    line-height: 1.6;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.glass-card .lead {
    font-size: 1.1rem;
    font-weight: 300;
    color: #fff;
}

.disclaimer {
    font-size: 0.82rem;
    color: var(--accent-warn);
    font-weight: 500;
    letter-spacing: 0.1px;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    width: 100%;
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.project-card {
    padding: 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
    text-align: center;
    justify-content: space-between;
}

.project-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-cyan);
}

.project-card h3 {
    min-height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn {
    text-decoration: none;
    padding: 0.8rem 1.2rem;
    border-radius: 4px;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    position: relative;
    z-index: 1;
    display: inline-block;
    margin-top: auto;
    width: 100%;
    outline: none;
}

.btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(79, 102, 204, 0.35);
}

.full-width {
    width: 100%;
    display: block;
}

.btn-challenge {
    background: var(--accent-cyan);
    color: #000;
    border: 1px solid var(--accent-cyan);
}

.btn-challenge:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
}

.btn-concepts {
    background: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
}

.btn-concepts:hover {
    background: rgba(79, 102, 204, 0.1);
    color: #fff;
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }

    h1.word-logo {
        font-size: 2.5rem;
        margin-top: 1rem;
    }

    .glass-card {
        padding: 1.5rem;
    }

    .container {
        padding: 1rem;
        margin: 2rem auto;
    }
}