:root {
    --bg-color: #0b0d13;
    --card-bg: rgba(18, 22, 32, 0.75);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-hover: rgba(255, 140, 0, 0.35);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.45);
    --accent: #ff7a00;
    --accent-glow: rgba(255, 122, 0, 0.25);
    --accent-light: #ffb84d;
    --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

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

html, body {
    height: 100%;
    width: 100%;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-ui);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow-x: hidden;
    line-height: 1.6;
    position: relative;
}

/* Background Ambient Glow */
.background-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.18;
}

.glow-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent) 0%, rgba(255, 122, 0, 0) 70%);
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
}

.glow-orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #ffb84d 0%, rgba(255, 184, 77, 0) 70%);
    bottom: -100px;
    right: 15%;
}

/* Main Container */
.main-wrapper {
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1.5rem;
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

/* Hero Card */
.hero-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 3.5rem 2.5rem;
    width: 100%;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.03);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.hero-card:hover {
    border-color: var(--card-border-hover);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), 0 0 30px var(--accent-glow);
}

.brand-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
}

.brand-logo {
    max-width: 280px;
    height: auto;
    display: block;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 122, 0, 0.12);
    border: 1px solid rgba(255, 122, 0, 0.3);
    color: var(--accent-light);
    font-size: 0.825rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.4rem 0.9rem;
    border-radius: 9999px;
    margin-bottom: 1.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--card-border), transparent);
    margin: 2rem 0;
}

.contact-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: color 0.2s ease, transform 0.2s ease;
}

.contact-link:hover {
    color: var(--accent-light);
    transform: translateY(-1px);
}

/* Footer */
.site-footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 1.75rem 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.site-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.site-footer a:hover {
    color: var(--text-primary);
}

/* 404 Page Styling */
.error-code {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #ff7a00 0%, #ff9e2c 100%);
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--accent-glow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-top: 1.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(255, 122, 0, 0.4);
}

/* Responsive */
@media (max-width: 640px) {
    .hero-card {
        padding: 2.25rem 1.5rem;
        border-radius: 20px;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .brand-logo {
        max-width: 220px;
    }
}