:root {
    --bg: #0b0f14;
    --card: rgba(255,255,255,0.04);
    --border: rgba(255,255,255,0.08);
    --accent: #4cafef;
    --accent2: #8b5cf6;
    --text: #e6edf3;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at 20% 20%, #111827, #05070a);
    color: var(--text);
}

/* Language Switch */
.lang-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 8px;
    z-index: 1001;
}

.lang-btn {
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    font-weight: bold;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.6);
}

.lang-btn.active {
    background: #ff6b35;
    border-color: #ff6b35;
}

/* HERO */
.hero {
    padding: 100px 20px 60px;
    text-align: center;
}

.hero h1 {
    font-size: 54px;
    margin: 0;
    background: linear-gradient(90deg, #fff, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    margin-top: 10px;
    opacity: 0.7;
}

.platform {
    margin-top: 10px;
    font-size: 14px;
    opacity: 0.5;
}

/* SECTION */
.section {
    max-width: 1100px;
    margin: auto;
    padding: 40px 20px;
}

/* GRID */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

/* CARD */
.download-card {
    background: var(--card);
    border: 1px solid var(--border);
    padding: 22px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: 0.25s;
    text-align: center;
}

.download-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255,255,255,0.2);
}

.download-card h3 {
    margin: 10px 0 5px;
}

.download-meta {
    font-size: 13px;
    opacity: 0.6;
}

/* BUTTON */
.download-card a {
    display: inline-block;
    margin-top: 14px;
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    color: white;
    background: #1f2937;
    transition: 0.2s;
}

.download-card a:hover {
    background: #374151;
}

/* REQUIREMENTS */
.req-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.req-card {
    background: #111827;
    padding: 20px;
    border-radius: 14px;
}

.req-card ul {
    padding-left: 20px;
}

.req-card li {
    margin: 8px 0;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 40px;
    opacity: 0.4;
}

.home-btn {
    position: fixed;
    top: 20px;
    left: 20px;
    padding: 8px 14px;
    border-radius: 10px;
    text-decoration: none;
    color: #e6edf3;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(6px);
    font-size: 14px;
    transition: 0.2s;
    z-index: 1000;
}

.home-btn:hover {
    background: rgba(255,255,255,0.12);
}

@media (max-width: 768px) {
    .hero h1 { font-size: 36px; }
    .lang-switch { top: 15px; right: 15px; }
    .lang-btn { padding: 3px 10px; font-size: 10px; }
    .home-btn { top: 15px; left: 15px; font-size: 11px; }
}