@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root{
    --primary: #2e8bff;
    --primary-600: #0b63d6;
    --bg-start: #f6fbff;
    --bg-end: #eef6ff;
    --card: #ffffff;
    --text: #0f172a;
    --heading: #0f172a;
    --muted: #6b7280;
    --danger: #dc3545;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
    font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color:var(--text);background:linear-gradient(180deg,var(--bg-start),var(--bg-end));
    -webkit-font-smoothing:antialiased;transition:background 0.3s ease,color 0.2s ease;
    overflow-x:hidden;
}

/* Page transition helpers */
.page-enter{opacity:0;transform:translateY(10px);}
.page-enter-active{transition:opacity 360ms ease, transform 360ms cubic-bezier(.2,.9,.3,1);opacity:1;transform:none}
.page-exit{opacity:1;transform:none}
.page-exit-active{transition:opacity 260ms ease, transform 260ms ease;opacity:0;transform:translateY(-8px)}

header{position:sticky;top:0;background:rgba(255,255,255,0.9);backdrop-filter:blur(6px);box-shadow:0 6px 20px rgba(16,24,40,0.06);z-index:50}
nav{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:14px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--primary)}
.logo-img{width:36px;height:36px;border-radius:50%;object-fit:cover;display:inline-block;margin-right:8px}
.nav-links{display:flex;gap:18px;align-items:center}
.nav-links a{color:var(--muted);font-weight:600;padding:8px 10px;border-radius:8px;transition:all .18s}
.nav-links a:hover{color:var(--primary);transform:translateY(-2px);background:rgba(46,139,255,0.06)}
.btn-download-nav{background:linear-gradient(90deg,var(--primary),var(--primary-600));color:#fff;padding:8px 18px;border-radius:999px;box-shadow:0 8px 18px rgba(46,139,255,0.15)}

.hero{max-width:1000px;margin:40px auto;padding:60px 28px;border-radius:14px;background:linear-gradient(180deg,rgba(255,255,255,0.8),rgba(255,255,255,0.66));box-shadow:0 10px 30px rgba(16,24,40,0.06);text-align:center}
.hero h1{font-size:2.25rem;color:var(--heading);margin-bottom:12px}
.hero p{color:var(--muted);margin-bottom:20px}
.btn-main{display:inline-block;background:linear-gradient(90deg,var(--primary),var(--primary-600));color:#fff;padding:14px 34px;border-radius:999px;font-weight:700;box-shadow:0 14px 30px rgba(11,99,214,0.12);transition:transform .18s}
.btn-main:hover{transform:translateY(-4px)}
.apk-info{color:var(--muted);margin-top:10px;font-size:.95rem}

.section{max-width:900px;margin:36px auto;padding:18px}
.section-title{font-size:1.6rem;text-align:center;margin-bottom:20px;color:var(--heading)}
.card{background:var(--card);padding:18px;border-radius:10px;box-shadow:0 6px 18px rgba(16,24,40,0.04);margin-bottom:14px}

.faq-item{cursor:pointer}
.faq-question{font-weight:700;color:var(--primary);display:flex;align-items:center;gap:10px}
.faq-answer{color:var(--muted);margin-top:10px;line-height:1.6}
.faq-item.active .faq-answer{display:block}
.faq-item .faq-answer{display:none}

.deletion-section{background:#fff6f6;border-left:4px solid var(--danger)}
.deletion-content h3{color:var(--danger);margin-bottom:8px}
.deletion-steps{margin-top:8px;margin-left:16px;color:var(--muted)}

footer{max-width:1100px;margin:50px auto 80px;padding:24px;color:#64748b;text-align:center}

/* small screens */
@media (max-width:700px){
    .hero{margin:20px 16px;padding:28px}
    .nav-links{display:none}
    .section{padding:12px}
}

/* subtle animated background accent */
.accent-orb{position:fixed;right:-120px;top:-80px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle at 30% 30%, rgba(46,139,255,0.14), transparent 40%),radial-gradient(circle at 70% 70%, rgba(11,99,214,0.06), transparent 45%);filter:blur(40px);pointer-events:none;z-index:0}

/* Theme toggle button */
.theme-toggle{background:transparent;border:0;padding:8px 10px;border-radius:8px;font-size:1.05rem;cursor:pointer;color:var(--muted);transition:transform .12s, background .12s, color .12s}
.theme-toggle:hover{transform:translateY(-2px);background:rgba(0,0,0,0.04);color:var(--primary)}

/* Dark theme overrides */
body[data-theme="dark"]{
    --bg-start: #292d33;
    --bg-end: #292d33;
    --card: #323336;
    --text: #e6eef9;
    --heading: #f8fafc;
    --muted: #9aa6b2;
    --primary: #6ea8ff;
    --primary-600: #4b8fe0;
}

body[data-theme="dark"] header{background:rgba(6,10,20,0.6);box-shadow:0 6px 20px rgba(0,0,0,0.45)}
body[data-theme="dark"] .hero{background:linear-gradient(180deg,rgba(8,12,20,0.7),rgba(6,8,16,0.6));box-shadow:0 12px 30px rgba(2,6,12,0.6)}
body[data-theme="dark"] .section{background: rgba(6,8,16,0.6)}
body[data-theme="dark"] .card{background:var(--card);box-shadow:0 10px 30px rgba(2,6,12,0.45)}
body[data-theme="dark"] .btn-main{box-shadow:0 14px 30px rgba(75,143,224,0.12)}
body[data-theme="dark"] .nav-links a{color:var(--muted)}
body[data-theme="dark"] .nav-links a:hover{background:rgba(110,168,255,0.06)}

/* --- Section separation & hero image --- */
.section:not(.hero){
    background: rgba(255,255,255,0.88);
    border-radius:14px;
    padding:28px;
    margin:28px auto;
    box-shadow:0 12px 30px rgba(16,24,40,0.06);
    position:relative;z-index:10;
}
.section + .section{margin-top:26px}

.hero{max-width:1100px;margin:28px auto;padding:40px;border-radius:14px;background:linear-gradient(180deg,rgba(255,255,255,0.95),rgba(255,255,255,0.85));display:flex;align-items:center;gap:28px}
.hero-inner{flex:1}
.hero h1{font-size:2rem}
.hero p{margin-bottom:18px}
.hero-image{width:360px;max-width:42%;border-radius:18px;box-shadow:0 20px 50px rgba(11,99,214,0.12);transition:transform .45s ease,box-shadow .25s}
.hero-image:hover{transform:translateY(-6px) rotate(-0.4deg);box-shadow:0 30px 70px rgba(11,99,214,0.18)}

@media (max-width:700px){
    .hero{flex-direction:column;padding:26px}
    .hero-image{max-width:80%;width:280px}
    .hero h1{font-size:1.5rem}
}