:root {
    --bg-color: #000000;
    --text-color: #ffffff;
    --accent-color: rgb(0, 255, 136);
    --accent-glow: rgba(0, 255, 136, 0.3);
    --cyan-color: rgb(0, 210, 255);
    --cyan-glow: rgba(0, 195, 255, 0.3);
    --secondary-color: #0a0a0a;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --transition-base: all 0.4s 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-color);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Background Animation Placeholder */
#canvas-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
}

header {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 100;
}

.lang-toggle {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 4px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 0.8rem;
    transition: var(--transition-base);
}

.lang-toggle:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.hero {
    animation: fadeIn 1s ease-out;
}

h1 {
    font-size: clamp(2rem, 7vw, 5.5rem);
    font-weight: 900;
    letter-spacing: -0.05em;
    margin-bottom: 1rem;
    text-transform: uppercase;
    background: linear-gradient(180deg, #fff 0%, #333 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: block;
    width: 100%;
    max-width: 100%;
    white-space: nowrap;
    text-align: center;
}

.tagline {
    font-family: var(--font-mono);
    color: var(--accent-color);
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.actions {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    text-decoration: none;
    color: var(--text-color);
    font-family: var(--font-mono);
    padding: 1.2rem 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    font-size: 1rem;
    letter-spacing: 0.1em;
    transition: var(--transition-base);
    background: rgba(255, 255, 255, 0.03);
    cursor: pointer;
    text-transform: uppercase;
}

.btn:hover {
    background: var(--text-color);
    color: var(--bg-color);
    border-color: var(--text-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

.btn-accent {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-accent:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 10px 30px var(--accent-glow);
}

/* Manifesto Content Overlay */
.manifesto-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 1000;
    padding: 2rem;
    backdrop-filter: blur(20px);
    display: none; /* Changed to flex by JS */
    align-items: center;
    justify-content: center;
    overflow-y: auto;
}

.manifesto-content {
    max-width: 800px;
    margin: auto;
    text-align: left;
}

.close-manifesto {
    position: fixed;
    top: 2rem;
    right: 2rem;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.5;
    transition: var(--transition-base);
}

.close-manifesto:hover {
    opacity: 1;
    color: var(--accent-color);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .actions {
        flex-direction: column;
        width: 100%;
    }
    .btn {
        width: 100%;
    }
}