:root{
  --primary:#22C55E;--primary-dark:#15803D;--primary-light:#DCFCE7;
  --bg:#F7F9F7;--surface:#fff;--text:#1F2937;--muted:#6B7280;
  --border:#E5E7EB;--danger:#EF4444;--shadow:0 8px 25px rgba(31,41,55,.08);
  --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
button{cursor:pointer;border:0}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:21px;letter-spacing:-.5px}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--primary);color:white;font-weight:900}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:13px;padding:13px 20px;font-weight:700;transition:.2s}
.btn-primary{background:var(--primary);color:white}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-light{background:white;border:1px solid var(--border);color:var(--text)}
.btn-small{padding:9px 15px}.full{width:100%}
.landing-header{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 6%;background:white;border-bottom:1px solid var(--border)}
.landing-header nav{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:600}
.hero{min-height:680px;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:50px;padding:70px 9%;background:linear-gradient(135deg,#fff 55%,#effcf3)}
.eyebrow{display:inline-block;color:var(--primary-dark);font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:1px;margin-bottom:13px}
.hero h1{font-size:clamp(42px,5.5vw,72px);line-height:1.02;letter-spacing:-3px;max-width:720px}
.hero h1 span{color:var(--primary)}
.hero p{max-width:610px;color:var(--muted);font-size:18px;line-height:1.7;margin:22px 0 28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:35px;margin-top:45px}.hero-stats div{display:flex;flex-direction:column;gap:4px}.hero-stats strong{font-size:17px}.hero-stats span{color:var(--muted);font-size:13px}
.phone-preview{width:320px;max-width:100%;background:#f8fff9;border:8px solid #17231a;border-radius:35px;padding:18px 13px 10px;box-shadow:0 25px 60px rgba(21,128,61,.22);justify-self:center}
.phone-top{font-weight:800;text-align:center;padding:3px 0 12px}.phone-top span{color:var(--primary);font-size:10px}
.balance-pill{display:inline-block;background:#ff5365;color:white;border-radius:20px;padding:7px 14px;font-size:12px;font-weight:800;margin:0 0 10px}
.preview-card{background:white;border:1px solid #e5eee7;border-radius:17px;padding:12px;margin-bottom:10px;box-shadow:0 4px 12px rgba(0,0,0,.04)}
.section-title{display:flex;justify-content:space-between;font-weight:800;color:var(--primary-dark);margin-bottom:10px}
.online-row{display:flex;gap:8px;overflow:hidden}.user-mini{min-width:78px;text-align:center;font-size:10px}.user-mini b,.user-mini small{display:block}.user-mini small{color:var(--primary);margin-top:2px}.avatar{width:42px;height:42px;border-radius:50%;background:#e7ebee;display:grid;place-items:center;font-weight:800;color:#374151;flex:none}.avatar-green{background:#baf0ca;color:#08752f}.avatar-purple{background:#ddd1ff;color:#6634d9}.avatar-orange{background:#ffe0ba;color:#a34d00}
.user-mini .avatar{margin:0 auto 5px}.chats-preview{padding-bottom:4px}.chat-preview{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid #f0f1f1;font-size:10px}.chat-preview:last-child{border-bottom:0}.chat-preview div:nth-child(2){flex:1}.chat-preview p{color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-preview small{color:var(--muted)}.unread{display:grid;place-items:center;min-width:21px;height:21px;padding:0 5px;background:var(--primary);color:white;border-radius:20px;font-size:9px;font-weight:800}
.phone-nav{display:flex;justify-content:space-around;padding:8px 0 2px;color:#737b76}.phone-nav span{display:flex;flex-direction:column;align-items:center;font-size:13px}.phone-nav small{font-size:8px;margin-top:2px}.phone-nav .active{color:var(--primary-dark);font-weight:800}
.features-section{padding:85px 8%;background:white}.section-heading{text-align:center;max-width:680px;margin:0 auto 45px}.section-heading h2{font-size:38px;letter-spacing:-1px}.section-heading p{color:var(--muted);margin-top:10px;line-height:1.6}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1100px;margin:auto}.feature-grid article{padding:25px;border:1px solid var(--border);border-radius:20px;background:#fff}.feature-grid span{font-size:26px}.feature-grid h3{margin:15px 0 7px}.feature-grid p{color:var(--muted);line-height:1.5;font-size:14px}
footer{text-align:center;padding:28px;color:var(--muted);font-size:13px}
@media(max-width:800px){.landing-header{padding:0 20px}.landing-header nav a:not(.btn){display:none}.hero{grid-template-columns:1fr;padding:50px 22px}.hero h1{font-size:48px}.hero-copy{text-align:center}.hero p{margin-left:auto;margin-right:auto}.hero-actions{justify-content:center}.hero-stats{justify-content:center;gap:20px}.feature-grid{grid-template-columns:1fr 1fr}.features-section{padding:60px 20px}}
@media(max-width:500px){.feature-grid{grid-template-columns:1fr}.hero h1{font-size:42px}.hero-stats{gap:13px}.hero-stats strong{font-size:14px}.hero-stats span{font-size:11px}}