:root {
  --bg-base: #090b10;
  --bg-panel: #161a2b;
  --bg-card: #1f2438;
  --accent-cyan: #00f2fe;
  --accent-violet: #8a2be2;
  --accent-pink: #ff0844;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glass-bg: rgba(22, 26, 43, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --nav-height: 70px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background-color: var(--bg-base); color: var(--text-main); line-height: 1.6; padding-top: var(--nav-height); }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes float { 0% { transform: translateY(0px); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0px); } }

/* Navigation */
.nav { position: fixed; top: 0; left: 0; right: 0; height: var(--nav-height); z-index: 100; background: var(--glass-bg); backdrop-filter: blur(12px); border-bottom: 1px solid var(--glass-border); padding: 0 5%; display: flex; justify-content: space-between; align-items: center; }
.nav-brand { font-size: 1.4rem; font-weight: 800; background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; display: flex; align-items: center; gap: 10px; }
.nav-links { display: flex; gap: 2.5rem; }
.nav-links a { color: var(--text-muted); font-weight: 600; font-size: 1rem; padding: 0.5rem 0; position: relative; transition: color 0.3s; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--accent-cyan); transition: width 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--text-main); }
.nav-links a.active::after { width: 100%; box-shadow: 0 0 10px var(--accent-cyan); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.8rem 2rem; border-radius: 30px; font-weight: bold; transition: all 0.3s; font-size: 1.05rem; }
.btn-primary { background: linear-gradient(135deg, var(--accent-violet), var(--accent-cyan)); color: #fff; box-shadow: 0 4px 15px rgba(138, 43, 226, 0.4); border: 1px solid rgba(255,255,255,0.2); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 242, 254, 0.5); }
.btn-outline { background: transparent; border: 1px solid var(--accent-cyan); color: var(--accent-cyan); }
.btn-outline:hover { background: rgba(0, 242, 254, 0.1); }

/* Layout Commons */
.container { max-width: 1200px; margin: 0 auto; padding: 5rem 2rem; }
.sec-title { font-size: 2.5rem; text-align: center; margin-bottom: 1rem; font-weight: 800; }
.sec-subtitle { font-size: 1.1rem; color: var(--text-muted); text-align: center; margin-bottom: 4rem; max-width: 700px; margin-left: auto; margin-right: auto; }
.highlight { color: var(--accent-cyan); }

/* Hero Section */
.hero { min-height: 85vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; position: relative; padding: 4rem 2rem; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -20%; left: -10%; width: 500px; height: 500px; background: var(--accent-violet); filter: blur(150px); opacity: 0.3; z-index: -1; border-radius: 50%; }
.hero::after { content: ''; position: absolute; bottom: -20%; right: -10%; width: 400px; height: 400px; background: var(--accent-cyan); filter: blur(150px); opacity: 0.2; z-index: -1; border-radius: 50%; }
.hero-tag { background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); padding: 0.4rem 1rem; border-radius: 20px; font-size: 0.9rem; color: var(--accent-cyan); margin-bottom: 2rem; display: inline-block; }
.hero h1 { font-size: 4.5rem; line-height: 1.1; margin-bottom: 1.5rem; font-weight: 900; }
.hero p { font-size: 1.25rem; color: var(--text-muted); max-width: 800px; margin-bottom: 2.5rem; }
.hero-actions { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; }
.hero-visual { margin-top: 4rem; width: 100%; max-width: 900px; position: relative; animation: float 6s ease-in-out infinite; }
.browser-mock { background: var(--bg-panel); border: 1px solid var(--glass-border); border-radius: 12px; box-shadow: 0 25px 50px rgba(0,0,0,0.5); overflow: hidden; }
.browser-head { background: rgba(0,0,0,0.4); padding: 12px 15px; display: flex; gap: 8px; border-bottom: 1px solid var(--glass-border); }
.b-dot { width: 12px; height: 12px; border-radius: 50%; }
.b-dot.r { background: #ff5f56; } .b-dot.y { background: #ffbd2e; } .b-dot.g { background: #27c93f; }
.browser-body { height: 300px; background: linear-gradient(180deg, var(--bg-card), var(--bg-base)); display: flex; align-items: center; justify-content: center; }

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; }
.feat-card { background: var(--bg-panel); border: 1px solid var(--glass-border); border-radius: 16px; padding: 2.5rem; transition: transform 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; }
.feat-card:hover { transform: translateY(-10px); box-shadow: 0 15px 30px rgba(0,0,0,0.4); border-color: rgba(0,242,254,0.3); }
.feat-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--accent-violet), var(--accent-cyan)); opacity: 0; transition: opacity 0.3s; }
.feat-card:hover::before { opacity: 1; }
.feat-icon { width: 60px; height: 60px; border-radius: 12px; background: rgba(255,255,255,0.05); display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; color: var(--accent-cyan); border: 1px solid var(--glass-border); }
.feat-icon svg { width: 32px; height: 32px; }
.feat-title { font-size: 1.4rem; margin-bottom: 1rem; font-weight: 700; }
.feat-desc { color: var(--text-muted); font-size: 1rem; line-height: 1.7; }

/* Platforms Section */
.platforms-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; }
.plat-card { background: var(--bg-panel); border: 1px solid var(--glass-border); border-radius: 16px; padding: 2rem; text-align: center; display: flex; flex-direction: column; align-items: center; }
.plat-icon { margin-bottom: 1.5rem; color: var(--text-main); }
.plat-icon svg { width: 48px; height: 48px; }
.plat-title { font-size: 1.3rem; margin-bottom: 0.5rem; font-weight: 600; }
.plat-req { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.plat-btn { width: 100%; padding: 0.8rem; border-radius: 8px; background: rgba(255,255,255,0.05); border: 1px solid var(--glass-border); color: var(--text-main); font-weight: 600; transition: all 0.3s; display: flex; align-items: center; justify-content: center; gap: 8px; }
.plat-btn:hover { background: var(--accent-violet); border-color: var(--accent-violet); }
.plat-card.featured { background: linear-gradient(180deg, rgba(138,43,226,0.1), var(--bg-panel)); border-color: var(--accent-violet); position: relative; }
.plat-badge { position: absolute; top: -12px; background: var(--accent-pink); color: #fff; font-size: 0.8rem; padding: 2px 12px; border-radius: 10px; font-weight: bold; }

/* Deep Dive Sections */
.deep-row { display: flex; align-items: center; gap: 4rem; margin-bottom: 6rem; }
.deep-row:nth-child(even) { flex-direction: row-reverse; }
.deep-content { flex: 1; }
.deep-visual { flex: 1; background: var(--bg-panel); border: 1px solid var(--glass-border); border-radius: 20px; padding: 2rem; position: relative; }
.deep-tag { display: inline-block; padding: 0.3rem 1rem; border-radius: 20px; background: rgba(0,242,254,0.1); color: var(--accent-cyan); font-size: 0.85rem; font-weight: bold; margin-bottom: 1rem; }
.deep-title { font-size: 2.2rem; margin-bottom: 1.5rem; line-height: 1.3; }
.deep-desc { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 2rem; }
.deep-list li { display: flex; align-items: flex-start; gap: 15px; margin-bottom: 1rem; }
.deep-list-icon { color: var(--accent-violet); margin-top: 3px; }
.deep-list-text { font-size: 1.05rem; }

/* Stats Bar */
.stats-bar { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 2rem; background: var(--bg-panel); padding: 3rem; border-radius: 20px; border: 1px solid var(--glass-border); margin: 4rem 0; }
.stat-item { text-align: center; }
.stat-num { font-size: 3rem; font-weight: 900; background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 0.5rem; }
.stat-lbl { color: var(--text-muted); font-size: 1.1rem; font-weight: 500; }

/* Reviews */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.review-card { background: var(--bg-card); padding: 2rem; border-radius: 16px; border: 1px solid var(--glass-border); }
.stars { color: #fbbf24; margin-bottom: 1rem; }
.review-text { font-size: 1rem; color: var(--text-main); font-style: italic; margin-bottom: 1.5rem; line-height: 1.6; }
.review-user { display: flex; align-items: center; gap: 12px; }
.avatar { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 1.2rem; }
.av-1 { background: #3b82f6; } .av-2 { background: #10b981; } .av-3 { background: #f59e0b; }
.av-4 { background: #ef4444; } .av-5 { background: #8b5cf6; } .av-6 { background: #ec4899; }
.user-info h4 { font-size: 1rem; margin-bottom: 2px; }
.user-info p { font-size: 0.85rem; color: var(--text-muted); }

/* Comparison Table */
.cmp-wrapper { overflow-x: auto; background: var(--bg-panel); border-radius: 16px; border: 1px solid var(--glass-border); padding: 1rem; }
.cmp-table { width: 100%; border-collapse: collapse; min-width: 600px; }
.cmp-table th, .cmp-table td { padding: 1.2rem; text-align: center; border-bottom: 1px solid rgba(255,255,255,0.05); }
.cmp-table th { font-weight: 700; color: var(--text-muted); }
.cmp-table th.highlight-col { color: var(--accent-cyan); font-size: 1.1rem; background: rgba(0,242,254,0.05); border-radius: 8px 8px 0 0; }
.cmp-table td.highlight-col { background: rgba(0,242,254,0.05); font-weight: bold; }
.cmp-table tr:last-child td { border-bottom: none; }
.cmp-table .feature-name { text-align: left; font-weight: 600; color: var(--text-main); }
.ico-yes { color: #10b981; } .ico-no { color: #ef4444; } .ico-part { color: #f59e0b; }

/* FAQ */
.faq-container { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-panel); border: 1px solid var(--glass-border); border-radius: 12px; margin-bottom: 1rem; overflow: hidden; transition: all 0.3s; }
.faq-item.open { border-color: var(--accent-cyan); box-shadow: 0 0 15px rgba(0,242,254,0.1); }
.faq-q { padding: 1.5rem; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 1.1rem; }
.faq-icon { transition: transform 0.3s; color: var(--accent-cyan); }
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-a { padding: 0 1.5rem; max-height: 0; opacity: 0; transition: all 0.3s ease-in-out; color: var(--text-muted); line-height: 1.7; }
.faq-item.open .faq-a { padding-bottom: 1.5rem; max-height: 500px; opacity: 1; }

/* Download Page Specifics */
.dl-hero { text-align: center; padding: 4rem 2rem; }
.dl-main-box { max-width: 700px; margin: 0 auto 4rem; background: linear-gradient(145deg, var(--bg-panel), var(--bg-card)); border: 1px solid var(--accent-violet); border-radius: 20px; padding: 3rem 2rem; position: relative; box-shadow: 0 20px 40px rgba(0,0,0,0.4); text-align: center; }
.dl-badge { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: var(--accent-cyan); color: #000; padding: 5px 20px; border-radius: 20px; font-weight: bold; font-size: 0.9rem; }
.dl-icon { color: var(--text-main); margin-bottom: 1.5rem; }
.dl-specs { display: flex; justify-content: center; gap: 2rem; margin: 2rem 0; flex-wrap: wrap; }
.dl-spec-item { text-align: left; }
.dl-spec-lbl { font-size: 0.85rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.dl-spec-val { font-size: 1.1rem; font-weight: 600; }
.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-bottom: 5rem; }
@media(max-width: 768px) { .install-grid { grid-template-columns: 1fr; } }
.step-card { background: var(--bg-panel); border: 1px solid var(--glass-border); border-radius: 16px; padding: 2rem; }
.step-title { display: flex; align-items: center; gap: 10px; margin-bottom: 2rem; font-size: 1.5rem; color: var(--accent-cyan); border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 1rem; }
.step-list { counter-reset: step-counter; }
.step-item { position: relative; padding-left: 3rem; margin-bottom: 1.5rem; }
.step-item::before { counter-increment: step-counter; content: counter(step-counter); position: absolute; left: 0; top: 0; width: 32px; height: 32px; background: rgba(0,242,254,0.1); color: var(--accent-cyan); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; border: 1px solid var(--accent-cyan); }
.step-item h4 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.step-item p { color: var(--text-muted); font-size: 0.95rem; }

.req-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; }
.req-card { background: rgba(255,255,255,0.02); border: 1px solid var(--glass-border); padding: 1.5rem; border-radius: 12px; }
.req-card h4 { color: var(--text-muted); font-size: 0.9rem; text-transform: uppercase; margin-bottom: 0.5rem; }
.req-card p { font-size: 1.1rem; font-weight: 600; }

.changelog { max-width: 800px; margin: 0 auto; }
.cl-item { display: flex; gap: 2rem; margin-bottom: 2rem; }
.cl-ver { width: 120px; flex-shrink: 0; text-align: right; }
.cl-num { font-size: 1.2rem; font-weight: bold; color: var(--accent-cyan); }
.cl-date { font-size: 0.85rem; color: var(--text-muted); }
.cl-content { flex: 1; padding-left: 2rem; border-left: 2px solid rgba(255,255,255,0.1); position: relative; }
.cl-content::before { content: ''; position: absolute; left: -6px; top: 8px; width: 10px; height: 10px; background: var(--accent-violet); border-radius: 50%; box-shadow: 0 0 10px var(--accent-violet); }
.cl-content h4 { margin-bottom: 0.5rem; }
.cl-content p { color: var(--text-muted); font-size: 0.95rem; }

/* SEO Article Page */
.article-container { max-width: 1000px; margin: 0 auto; padding: 4rem 2rem; display: flex; gap: 3rem; align-items: flex-start; }
.article-main { flex: 1; }
.article-sidebar { width: 300px; position: sticky; top: 100px; display: flex; flex-direction: column; gap: 1.5rem; }
@media(max-width: 900px) { .article-container { flex-direction: column; } .article-sidebar { width: 100%; position: static; } }
.art-hero { background: linear-gradient(to bottom, var(--bg-panel), var(--bg-base)); padding: 4rem 2rem; text-align: center; border-bottom: 1px solid var(--glass-border); }
.art-tags { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 2rem; }
.tag { background: rgba(255,255,255,0.05); padding: 4px 12px; border-radius: 4px; font-size: 0.85rem; color: var(--text-muted); border: 1px solid rgba(255,255,255,0.1); }
.article-body h2 { font-size: 2rem; margin: 3rem 0 1.5rem; color: var(--accent-cyan); border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 0.5rem; }
.article-body h3 { font-size: 1.5rem; margin: 2rem 0 1rem; color: var(--text-main); }
.article-body p { margin-bottom: 1.5rem; font-size: 1.05rem; line-height: 1.8; color: #cbd5e1; }
.article-body ul { padding-left: 1.5rem; margin-bottom: 1.5rem; }
.article-body li { margin-bottom: 0.5rem; font-size: 1.05rem; color: #cbd5e1; position: relative; }
.article-body li::before { content: '•'; position: absolute; left: -1rem; color: var(--accent-violet); font-weight: bold; }
.side-widget { background: var(--bg-panel); border: 1px solid var(--glass-border); border-radius: 12px; padding: 1.5rem; }
.side-title { font-size: 1.1rem; font-weight: bold; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.side-dl-btn { display: block; width: 100%; padding: 0.8rem; text-align: center; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; margin-bottom: 10px; font-weight: bold; transition: all 0.3s; }
.side-dl-btn.primary { background: linear-gradient(135deg, var(--accent-violet), var(--accent-cyan)); border: none; color: #fff; }
.side-dl-btn:hover { filter: brightness(1.2); }

/* Footer */
.footer { background: var(--bg-panel); border-top: 1px solid var(--glass-border); padding: 3rem 2rem; text-align: center; margin-top: 4rem; }
.security-banner { display: inline-flex; align-items: center; gap: 10px; background: rgba(16, 185, 129, 0.1); border: 1px solid #10b981; color: #10b981; padding: 0.8rem 1.5rem; border-radius: 30px; margin-bottom: 1.5rem; font-weight: bold; }
.footer-text { color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; max-width: 600px; margin: 0 auto; }

/* Responsive adjustments */
@media(max-width: 768px) {
  .hero h1 { font-size: 3rem; }
  .deep-row, .deep-row:nth-child(even) { flex-direction: column; gap: 2rem; }
  .nav-links { display: none; }
}