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

body {
    background: radial-gradient(ellipse at 30% 40%, #0b1120, #03060c);
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.vpn-card {
    max-width: 1200px;
    width: 100%;
    background: rgba(12, 20, 30, 0.68);
    backdrop-filter: blur(12px);
    border-radius: 3rem;
    border: 1px solid rgba(72, 187, 255, 0.2);
    box-shadow: 0 25px 45px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(66, 153, 225, 0.1);
    padding: 2.5rem 2.2rem;
    transition: all 0.2s ease;
}

@media (max-width: 640px) {
    .vpn-card {
        padding: 1.8rem 1.4rem;
        border-radius: 2rem;
    }
}

.lang-switch {
    display: flex;
    justify-content: flex-end;
    gap: 0.7rem;
    margin-bottom: 1.5rem;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(100, 150, 200, 0.3);
    color: #cbd5e6;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.45rem 1rem;
    border-radius: 40px;
    cursor: pointer;
    transition: 0.2s;
    backdrop-filter: blur(4px);
    letter-spacing: 0.3px;
}

.lang-btn.active {
    background: linear-gradient(105deg, #2b7aff, #1bc4b0);
    border-color: transparent;
    color: white;
    box-shadow: 0 6px 12px -8px #1bc4b080;
}

.lang-btn:hover:not(.active) {
    background: rgba(43, 122, 255, 0.2);
    border-color: #2b7aff80;
}

.hero {
    text-align: center;
    margin-bottom: 1.8rem;
}

.title {
    font-size: 3.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #F0F9FF, #A5F0E0, #7AD0FF);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    line-height: 1.2;
}

.speed-badge {
    display: inline-block;
    background: rgba(43, 122, 255, 0.2);
    backdrop-filter: blur(4px);
    border: 1px solid #2b7aff60;
    padding: 0.3rem 1rem;
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #b9f0ff;
    margin-bottom: 1rem;
}

.top-button-wrapper {
    margin: 0.5rem 0 1rem;
}

.btn-top {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(100, 200, 255, 0.4);
    color: #c0e0ff;
    font-size: 1.5rem;
    font-weight: bold;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-top:hover {
    background: #2b7aff;
    border-color: #2b7aff;
    color: white;
    transform: translateY(-3px);
}

.description {
    font-size: 1.12rem;
    color: #b9cef0;
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.5;
    font-weight: 450;
}

.mirror-action {
    display: flex;
    justify-content: center;
    margin: 2rem 0 2.5rem;
}

.mirror-btn {
    padding: 1rem 2.8rem;
    font-size: 1.2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0 2rem;
}

.feature-card {
    background: rgba(5, 12, 22, 0.6);
    backdrop-filter: blur(4px);
    border-radius: 1.5rem;
    padding: 1.2rem 1rem;
    text-align: center;
    border: 1px solid rgba(70, 140, 200, 0.25);
    transition: 0.2s;
}

.feature-card:hover {
    border-color: #2b7aff80;
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2.4rem;
    margin-bottom: 0.6rem;
}

.feature-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.feature-desc {
    font-size: 0.85rem;
    color: #9bb4da;
    line-height: 1.4;
}

.stats-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1.8rem;
    background: rgba(5, 12, 22, 0.5);
    border-radius: 2rem;
    padding: 1.8rem 2rem;
    margin: 2rem 0 1.5rem;
    border: 1px solid rgba(70, 140, 200, 0.25);
}

.stat-item {
    flex: 1;
    text-align: center;
    min-width: 120px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(145deg, #fff, #b3e4ff);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 0.35rem;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: #8ba6cf;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@media (max-width: 720px) {
    .stats-grid {
        flex-direction: column;
        gap: 1.2rem;
        align-items: center;
    }
    .stat-item {
        width: 100%;
    }
    .stat-number {
        font-size: 2rem;
    }
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 60px;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s;
    background: linear-gradient(98deg, #2b7aff, #16d0b6);
    color: white;
    box-shadow: 0 8px 18px -6px #1d6eff70;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 28px -10px #1d6effaa;
}

.badge-note {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.75rem;
    color: #5e7c9e;
}