:root {
    --bg-paper: #F9F8F6;
    --text-main: #000000;
    --text-muted: #555555;
    --accent: #B09B89;
    --primary: #4f46e5;
    --radius-pill: 100px;
    --transition-elite: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-paper);
    color: var(--text-main);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    overflow: hidden;
}

.error-container {
    max-width: 600px;
    padding: 2rem;
}

.error-code {
    font-size: clamp(8rem, 20vw, 15rem);
    font-weight: 700;
    line-height: 1;
    margin: 0;
    color: var(--text-main);
    opacity: 0.05;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    letter-spacing: -0.05em;
}

.error-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.error-message {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.btn-elite {
    padding: 1.2rem 3rem;
    border-radius: var(--radius-pill);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.75rem;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition-elite);
    background: var(--text-main);
    color: var(--bg-paper);
    border: 1px solid var(--text-main);
}

.btn-elite:hover {
    background: transparent;
    color: var(--text-main);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.glow-effect {
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent);
    filter: blur(150px);
    opacity: 0.1;
    border-radius: 50%;
    z-index: -1;
    animation: pulse 10s infinite alternate;
}

@keyframes pulse {
    from { transform: translate(-20%, -20%) scale(1); }
    to { transform: translate(20%, 20%) scale(1.5); }
}