/* Variables: black + purple theme */
:root{
    --bg-start: #040406;    /* almost black */
    --bg-end: #0b0620;      /* deep purple/black */
    --primary: #7c3aed;     /* vivid purple */
    --primary-dark: #4c1d95;
    --accent: #9b5cf6;      /* lighter purple accent */
    --muted: rgba(255,255,255,0.85);
    --card-bg: rgba(255,255,255,0.02);
    --glass: rgba(255,255,255,0.03);
    --highlight: rgba(124,58,237,0.12);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
    background: linear-gradient(180deg, var(--bg-start) 0%, var(--bg-end) 100%);
    color: #fff;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.header {
    background: rgba(2, 2, 6, 0.6);
    border-bottom: 1px solid rgba(255,255,255,0.03);
    position: sticky;
    top: 0;
    z-index: 50;
    transition: backdrop-filter 0.3s ease, box-shadow 0.2s ease;
}
.header.scrolled {
    backdrop-filter: blur(6px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.6);
}

.header-content {
    max-width: 1180px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.logo i {
    color: var(--accent);
    font-size: 1.9rem;
}
.logo h1 {
    font-size: 1.15rem;
    font-weight: 800;
}
.logo .tagline {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.75);
}

/* Nav */
.nav { display:flex; gap:1rem; }
.nav-link {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-weight: 600;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    transition: background 0.18s ease, color 0.18s ease;
}
.nav-link:hover { background: rgba(255,255,255,0.02); color: var(--muted); }

/* Main container */
.main-content { max-width: 1180px; margin: 2.2rem auto; padding: 0 1.5rem 3rem; }

/* Hero */
.hero {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 2.2rem;
    align-items: start;
    margin-bottom: 2.5rem;
    padding: 2rem;
    background: linear-gradient(180deg, rgba(10,6,16,0.2), transparent 40%);
    border-radius: 12px;
    border: 1px solid rgba(124,58,237,0.06);
}
.hero-left h2{
    font-size: 2.4rem;
    line-height: 1.05;
    color: #fff;
    margin-bottom: 0.6rem;
}
.hero-lead { color: rgba(255,255,255,0.88); margin-bottom: 1rem; font-size: 1.05rem; }

.download-cta { display:flex; align-items:center; gap:1rem; margin-bottom:0.6rem; }
.btn-primary {
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    color: #fff;
    padding: 0.9rem 1.25rem;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    display:inline-flex;
    gap:0.6rem;
    align-items:center;
    box-shadow: 0 12px 30px rgba(124,58,237,0.12);
    border: 1px solid rgba(124,58,237,0.12);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 44px rgba(124,58,237,0.18); }

.download-info { display:flex; flex-direction:column; gap:0.25rem; font-size:0.9rem; color: rgba(255,255,255,0.85); }
.download-info .verified { color: var(--accent); display:inline-flex; gap:0.5rem; align-items:center; font-weight:700; }

/* Trust row */
.trust-row { margin-top:0.4rem; display:flex; align-items:center; gap:1rem; color: rgba(255,255,255,0.9); }
.stars i { color: #ffcf4d; margin-right: 2px; }
.rating { margin-left: 6px; font-weight:700; color: #fff; }
.download-count { color: rgba(255,255,255,0.8); margin-left: 8px; }

/* Hero right visual */
.visual-card { background: var(--card-bg); border-radius: 12px; padding: 0.6rem; text-align:center; border: 1px solid rgba(255,255,255,0.03); position: relative; overflow: hidden; }
.preview-image { width:100%; height:auto; border-radius:8px; display:block; filter: saturate(1.05) contrast(0.95); }
.visual-caption { margin-top:0.6rem; font-size:0.9rem; color: rgba(255,255,255,0.7); }

/* Safety badges */
.safety-badges { display:flex; gap:0.6rem; margin-top:0.75rem; justify-content: center; }
.badge { display:flex; gap:0.5rem; align-items:center; padding:0.45rem 0.7rem; border-radius:14px; font-weight:600; font-size:0.85rem; color:#fff; background:var(--glass); border:1px solid rgba(255,255,255,0.03); }
.badge i { color: #fff; }
.badge-purple { background: linear-gradient(90deg, #6d28d9, #7c3aed); color:#fff; }
.badge-dark { background: linear-gradient(90deg, #2b2540, #1b152b); color:#cfc7ff; }
.badge-muted { background: rgba(255,255,255,0.03); color: rgba(255,255,255,0.9); }

/* Benefits list */
.hero-benefits { display:flex; gap:1rem; margin: 1rem 0; list-style:none; flex-wrap:wrap; color: rgba(255,255,255,0.9); }
.hero-benefits li { display:flex; gap:0.6rem; align-items:center; font-weight:600; }

/* Secondary buttons */
.btn-secondary { padding:0.65rem 1rem; border-radius:10px; background:transparent; color:rgba(255,255,255,0.9); border:1px solid rgba(255,255,255,0.04); text-decoration:none; }

/* Features section */
.features-section { text-align:center; padding:2.6rem 0; }
.features-header h3 { font-size:1.9rem; margin-bottom:0.5rem; color: #fff; }
.features-grid { display:flex; gap:1.2rem; justify-content:center; margin-top:1.2rem; flex-wrap:wrap; }

/* Feature card */
.feature-card {
    width: 300px;
    padding:1.6rem;
    background: linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.005));
    border-radius:14px;
    border:1px solid rgba(255,255,255,0.03);
    text-align:center;
}
.feature-icon { font-size:1.6rem; color: var(--accent); margin-bottom:0.6rem; }
.feature-card h4 { font-size:1.05rem; margin-bottom:0.5rem; }
.feature-card p { color: rgba(255,255,255,0.86); line-height:1.4; }

/* Install section */
.install-section { margin:2.2rem 0; padding:1.8rem; background: rgba(255,255,255,0.02); border-radius:12px; border:1px solid rgba(255,255,255,0.03); }
.install-steps { margin-top:1rem; padding-left:1.1rem; color: rgba(255,255,255,0.9); }

/* Reviews */
.reviews-grid { display:grid; grid-template-columns: repeat(3,1fr); gap:1rem; margin-top:1rem; }
.testimonial { background: rgba(255,255,255,0.02); padding:1rem; border-radius:10px; border:1px solid rgba(255,255,255,0.03); color: rgba(255,255,255,0.95); }
.testimonial .quote { font-weight:600; margin-bottom:0.6rem; }
.testimonial .author { font-size:0.9rem; color: rgba(255,255,255,0.7); }

/* Footer */
.footer { margin-top:2.4rem; background: rgba(0,0,0,0.35); border-top:1px solid rgba(255,255,255,0.03); }
.footer-content { display:grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap:1rem; max-width:1180px; margin:0 auto; padding:2rem 1.5rem; }
.footer-section h4 { color: #b089ff; margin-bottom:0.6rem; }
.footer-bottom { padding:0.9rem 1.5rem; text-align:center; color: rgba(255,255,255,0.75); border-top:1px solid rgba(255,255,255,0.02); }

/* Responsive */
@media (max-width: 980px) {
    .hero { grid-template-columns: 1fr; padding:1.4rem; }
    .reviews-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 560px) {
    .reviews-grid { grid-template-columns: 1fr; }
    .nav { display:none; }
}