:root {
    --bg: #131313;
    --bg-card: #1A1A1A;
    --bg-secondary: #2A2A2A;
    --text: #F1F1F1;
    --text-50: rgba(241,241,241,0.5);
    --text-30: rgba(241,241,241,0.3);
    --text-10: rgba(241,241,241,0.1);
    --text-05: rgba(241,241,241,0.05);
    --accent: #4A7BF7;
    --accent-10: rgba(74,123,247,0.1);
    --accent-20: rgba(74,123,247,0.2);
    --success: #34C759;
    --warning: #FF9F0A;
    --error: #FF453A;
    --radius: 24px;
    --radius-md: 20px;
    --radius-sm: 16px;
    --font: -apple-system,BlinkMacSystemFont,'SF Pro Rounded','SF Pro Display',system-ui,sans-serif;
    --mono: 'SF Mono',SFMono-Regular,ui-monospace,'Cascadia Mono','Segoe UI Mono','Liberation Mono',Menlo,Monaco,Consolas,monospace;
    --max-width: 960px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;position:relative}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(74,123,247,0.04) 0%,transparent 60%);pointer-events:none;z-index:0}
a{color:inherit;text-decoration:none}

/* Nav */
nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:20px 32px;display:flex;align-items:center;justify-content:space-between;backdrop-filter:blur(24px) saturate(1.8);-webkit-backdrop-filter:blur(24px) saturate(1.8);background:rgba(19,19,19,0.7);border-bottom:1px solid var(--text-10);box-shadow:0 4px 24px rgba(0,0,0,.3)}
.nav-brand{font-size:18px;font-weight:800;letter-spacing:-.3px}
.nav-right{display:flex;gap:24px;align-items:center;list-style:none}
.nav-right a{font-size:13px;font-weight:600;color:var(--text-50);transition:color .2s ease}
.nav-right a:hover{color:var(--text)}
.nav-cta{font-size:12px;font-weight:700;color:var(--text)!important;background:rgba(255,255,255,0.06);border:1px solid var(--text-10);padding:8px 20px;border-radius:100px;transition:background .2s ease,border-color .2s ease;box-shadow:inset 0 1px 0 rgba(255,255,255,0.05)}
.nav-cta:hover{background:rgba(255,255,255,0.1);border-color:var(--text-30)}
.nav-mobile-toggle{display:none;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer}

.container{max-width:var(--max-width);margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center;padding:120px 0 80px}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.hero-text .tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;font-weight:600;color:var(--text-50);border:1px solid var(--text-10);padding:6px 14px;border-radius:100px;margin-bottom:28px;animation:fadeIn .6s ease .2s both}
.hero-text .tag .dot{width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 2s ease-in-out infinite}
.hero-text h1{font-size:clamp(36px,5vw,56px);font-weight:900;letter-spacing:-1.5px;line-height:1.1;animation:fadeIn .6s ease .4s both}
.hero-text h1 span{color:var(--accent)}
.hero-text .desc{font-size:16px;font-weight:600;color:var(--text-50);margin-top:20px;max-width:400px;line-height:1.7;animation:fadeIn .6s ease .6s both}
.hero-actions{display:flex;gap:12px;margin-top:32px;animation:fadeIn .6s ease .8s both}
.btn-primary{font-family:var(--font);font-size:15px;font-weight:700;color:#fff;background:linear-gradient(135deg,#5A8AF7 0%,#3A6AE7 100%);padding:14px 32px;border-radius:var(--radius);border:none;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease;box-shadow:0 4px 16px rgba(74,123,247,0.3),inset 0 1px 0 rgba(255,255,255,0.12)}
.btn-primary:hover{transform:scale(0.97);box-shadow:0 8px 32px rgba(74,123,247,0.4),inset 0 1px 0 rgba(255,255,255,0.12)}
.btn-secondary{font-family:var(--font);font-size:15px;font-weight:700;color:var(--text);background:rgba(255,255,255,0.04);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--text-10);padding:14px 32px;border-radius:var(--radius);cursor:pointer;transition:border-color .2s ease,transform .15s ease,background .2s ease;box-shadow:inset 0 1px 0 rgba(255,255,255,0.05)}
.btn-secondary:hover{border-color:var(--text-30);transform:scale(0.97);background:rgba(255,255,255,0.07)}

/* Phone Screenshot */
.hero-mockup{animation:fadeIn .8s ease 1s both;position:relative;display:flex;justify-content:center}
.hero-mockup::before{content:'';position:absolute;width:300px;height:400px;top:50%;left:50%;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(74,123,247,0.1) 0%,transparent 70%);filter:blur(60px);pointer-events:none}
.phone-frame{width:280px;position:relative;border-radius:40px;border:3px solid var(--text-10);overflow:hidden;box-shadow:0 4px 12px rgba(0,0,0,.2),0 16px 40px rgba(0,0,0,.3),0 32px 80px rgba(0,0,0,.5)}
.phone-frame img{width:100%;display:block;border-radius:37px}

/* Section shared */
.section{padding:clamp(80px,12vh,140px) 0;position:relative}
.section-label{font-family:var(--mono);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:16px}
.section-title{font-size:clamp(28px,4vw,40px);font-weight:900;letter-spacing:-1px;line-height:1.15}
.section-desc{font-size:15px;font-weight:600;color:var(--text-50);margin-top:14px;max-width:480px;line-height:1.7}

/* Features */
.features-list{margin-top:48px;display:flex;flex-direction:column;gap:1px;background:var(--text-05);border-radius:var(--radius);overflow:hidden;border:1px solid var(--text-10);box-shadow:0 8px 32px rgba(0,0,0,.2),0 2px 8px rgba(0,0,0,.15)}
.feature-row{display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:center;padding:24px;background:var(--bg);transition:background .2s ease}
.feature-row:hover{background:var(--bg-card)}
.feature-row-icon{width:40px;height:40px;border-radius:12px;background:var(--accent-10);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(74,123,247,0.15)}
.feature-row-icon svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.feature-row h3{font-size:15px;font-weight:800;margin-bottom:3px}
.feature-row p{font-size:13px;font-weight:600;color:var(--text-50);line-height:1.5}

/* How It Works */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:48px}
.step-card{background:linear-gradient(180deg,#1E1E1E 0%,#1A1A1A 100%);border:1px solid var(--text-10);border-radius:var(--radius);padding:28px 24px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;box-shadow:0 4px 16px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,0.03)}
.step-card:hover{border-color:var(--text-30);transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,0.03)}
.step-num{font-family:var(--mono);font-size:32px;font-weight:900;color:var(--accent);margin-bottom:16px;line-height:1}
.step-card h4{font-size:16px;font-weight:800;margin-bottom:8px}
.step-card p{font-size:13px;font-weight:600;color:var(--text-50);line-height:1.6}

/* Privacy */
.privacy-header{text-align:center;margin-bottom:56px}
.privacy-header .shield{width:64px;height:64px;margin:0 auto 20px;border-radius:50%;background:var(--accent-10);border:1.5px solid var(--accent-20);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(74,123,247,0.2)}
.privacy-header .shield svg{width:28px;height:28px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.privacy-header h3{font-size:clamp(28px,4vw,40px);font-weight:900;letter-spacing:-1px}
.privacy-header p{font-size:15px;font-weight:600;color:var(--text-50);margin-top:10px;max-width:500px;margin-left:auto;margin-right:auto;line-height:1.7}
.privacy-track{position:relative;max-width:600px;margin:0 auto}
.privacy-track::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--accent-20) 0%,var(--text-10) 100%);transform:translateX(-50%)}
.privacy-item{position:relative;padding-bottom:40px;display:flex}
.privacy-item:last-child{padding-bottom:0}
.privacy-item.left{justify-content:flex-start;padding-right:calc(50% + 32px)}
.privacy-item.right{justify-content:flex-end;padding-left:calc(50% + 32px)}
.privacy-node{position:absolute;left:50%;top:8px;width:14px;height:14px;transform:translateX(-50%);border-radius:50%;background:var(--bg);border:2px solid var(--accent);z-index:2;box-shadow:0 0 12px rgba(74,123,247,0.25)}
.privacy-bubble{background:linear-gradient(180deg,#1E1E1E 0%,#1A1A1A 100%);border:1px solid var(--text-10);border-radius:var(--radius-sm);padding:20px 24px;box-shadow:0 4px 16px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,0.03);position:relative}
.privacy-bubble h4{font-size:14px;font-weight:800;margin-bottom:4px}
.privacy-bubble p{font-size:13px;font-weight:600;color:var(--text-50);line-height:1.6}
.privacy-bubble::after{content:'';position:absolute;top:14px;width:16px;height:2px;background:var(--accent-20)}
.privacy-item.left .privacy-bubble::after{right:-16px}
.privacy-item.right .privacy-bubble::after{left:-16px}

/* CTA */
.cta{text-align:center;padding:clamp(100px,14vh,160px) 0 80px;position:relative}
.cta::before{content:'';position:absolute;width:600px;height:300px;bottom:40px;left:50%;transform:translateX(-50%);background:radial-gradient(ellipse,rgba(74,123,247,0.06) 0%,transparent 70%);filter:blur(40px);pointer-events:none}
.cta h2{font-size:clamp(32px,5vw,52px);font-weight:900;letter-spacing:-1.5px;position:relative}
.cta h2 span{color:var(--accent)}
.cta .cta-desc{font-size:16px;font-weight:600;color:var(--text-50);margin-top:16px;margin-bottom:48px;position:relative}
.cta .btn-primary{padding:16px 40px;font-size:16px;position:relative}

/* Footer */
footer{padding:40px 32px;text-align:center;border-top:1px solid var(--text-05)}
footer p{font-size:13px;font-weight:600;color:var(--text-30)}
footer a{color:var(--text-50);transition:color .2s ease}
footer a:hover{color:var(--text)}

/* Animations */
@keyframes fadeIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.reveal{opacity:0;transform:translateY(30px);will-change:opacity,transform}
.reveal-d1{--reveal-delay:.07s}.reveal-d2{--reveal-delay:.14s}.reveal-d3{--reveal-delay:.21s}.reveal-d4{--reveal-delay:.28s}.reveal-d5{--reveal-delay:.35s}

/* Mobile */
@media(max-width:900px){
    .hero-inner{grid-template-columns:1fr;gap:48px}
    .hero-mockup{order:-1}
    .phone-frame{width:240px}
    .steps-grid{grid-template-columns:1fr;gap:12px}
    .privacy-card{grid-template-columns:1fr;padding:32px 24px}
}
@media(max-width:600px){
    nav{padding:16px 20px}
    .nav-right{display:none;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:var(--bg-card);padding:20px;gap:14px;border-bottom:1px solid var(--text-10)}
    .nav-right.open{display:flex}
    .nav-mobile-toggle{display:block}
    .container{padding:0 20px}
    .hero{padding:100px 0 60px}
    .hero-actions{flex-direction:column}
    .btn-primary,.btn-secondary{text-align:center}
    .feature-row{grid-template-columns:44px 1fr;gap:14px;padding:18px 16px}
    .privacy-track::before{left:7px}
    .privacy-item.left,.privacy-item.right{padding-left:40px;padding-right:0;justify-content:flex-start}
    .privacy-node{left:7px;top:8px}
    .privacy-item.left .privacy-bubble::after,.privacy-item.right .privacy-bubble::after{left:-16px;right:auto}
}
@media(max-width:380px){
    .hero-text h1{font-size:32px}
    .section-title{font-size:24px}
    .phone-frame{width:200px;border-radius:32px}
    .phone-frame img{border-radius:29px}
}