/* biabalab.com — Vite-style purple/yellow gradient build-tool landing */
:root{
  --bg:#0d0d14;
  --bg2:#13131f;
  --bg3:#1a1a2e;
  --surface:#1e1e30;
  --surface2:#252540;
  --border:#2e2e4a;
  --purple:#7c3aed;
  --purple2:#9333ea;
  --yellow:#f5c542;
  --yellow2:#fbbf24;
  --accent-grad:linear-gradient(135deg,#7c3aed 0%,#f5c542 100%);
  --text:#e8e6f4;
  --text2:#b0adc9;
  --text3:#7a7899;
  --radius:12px;
  --radius-lg:20px;
  --shadow:0 4px 32px rgba(124,58,237,.18);
  --transition:all .22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font-family:'Inter',system-ui,-apple-system,sans-serif;line-height:1.6;min-height:100vh;overflow-x:hidden}

/* ===== NAVBAR ===== */
.navbar{position:sticky;top:0;z-index:100;background:rgba(13,13,20,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.nav-logo svg{display:block;flex-shrink:0}
.nav-logo-text{font-size:20px;font-weight:800;color:var(--text);letter-spacing:-.5px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--text2);text-decoration:none;font-size:14px;font-weight:500;transition:var(--transition)}
.nav-links a:hover{color:var(--text)}
.nav-cta-wrap{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;border-radius:var(--radius);cursor:pointer;border:none;outline:none;text-decoration:none;transition:var(--transition);white-space:nowrap;padding:10px 22px;line-height:1;min-height:44px}
.btn-primary{background:var(--accent-grad);color:#fff;box-shadow:0 2px 16px rgba(124,58,237,.35)}
.btn-primary:hover{opacity:.88;box-shadow:0 4px 24px rgba(124,58,237,.5)}
.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--purple);color:#fff}
.btn-lg{padding:14px 32px;font-size:16px;min-height:52px;border-radius:var(--radius-lg)}
.btn-xl{padding:16px 40px;font-size:17px;min-height:56px;border-radius:var(--radius-lg)}

/* ===== HERO ===== */
.hero{padding:100px 24px 80px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% -10%,rgba(124,58,237,.25) 0%,transparent 70%);pointer-events:none}
.hero::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:600px;height:1px;background:linear-gradient(90deg,transparent,rgba(124,58,237,.4),rgba(245,197,66,.3),transparent)}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(124,58,237,.12);border:1px solid rgba(124,58,237,.3);border-radius:999px;padding:6px 16px;font-size:13px;color:var(--text2);margin-bottom:32px}
.hero-badge-dot{width:6px;height:6px;border-radius:50%;background:var(--yellow);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:900;line-height:1.12;letter-spacing:-.03em;margin-bottom:24px;max-width:820px;margin-left:auto;margin-right:auto}
.hero h1 .grad{background:var(--accent-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{font-size:clamp(1rem,2.2vw,1.2rem);color:var(--text2);max-width:580px;margin:0 auto 40px;line-height:1.7}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-stats{margin-top:72px;display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:24px;max-width:900px;margin-left:auto;margin-right:auto}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;text-align:center}
.stat-num{font-size:2rem;font-weight:900;background:var(--accent-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.1}
.stat-label{font-size:13px;color:var(--text3);margin-top:4px}

/* ===== FEATURE STRIP ===== */
.feature-strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--bg2);padding:48px 24px}
.feature-strip-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px}
.fstrip-item{display:flex;align-items:flex-start;gap:14px}
.fstrip-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,rgba(124,58,237,.25),rgba(245,197,66,.15));border:1px solid rgba(124,58,237,.2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.fstrip-icon svg{width:20px;height:20px}
.fstrip-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.fstrip-desc{font-size:13px;color:var(--text3);line-height:1.5}

/* ===== PLATFORM ===== */
.section{padding:96px 24px}
.section-inner{max-width:1200px;margin:0 auto}
.section-label{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--purple);background:rgba(124,58,237,.1);border:1px solid rgba(124,58,237,.2);border-radius:999px;padding:4px 14px;margin-bottom:16px}
.section-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;letter-spacing:-.02em;line-height:1.18;margin-bottom:16px}
.section-sub{font-size:1rem;color:var(--text2);max-width:520px;line-height:1.7}
.platform-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:48px}
.platform-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 24px;transition:var(--transition);position:relative;overflow:hidden}
.platform-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent-grad);opacity:0;transition:var(--transition)}
.platform-card:hover{border-color:rgba(124,58,237,.4);transform:translateY(-2px);box-shadow:var(--shadow)}
.platform-card:hover::before{opacity:1}
.platform-card-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,rgba(124,58,237,.2),rgba(245,197,66,.1));border:1px solid rgba(124,58,237,.2);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.platform-card-icon svg{width:24px;height:24px}
.platform-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.platform-card p{font-size:14px;color:var(--text2);line-height:1.6}
.platform-cta{margin-top:20px;display:flex;gap:6px;flex-wrap:wrap}

/* ===== WHY SECTION (split) ===== */
.why-split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
@media(max-width:768px){.why-split{grid-template-columns:1fr;gap:40px}}
.why-visual{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;position:relative;overflow:hidden}
.why-visual::before{content:'';position:absolute;top:-40px;right:-40px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(124,58,237,.2) 0%,transparent 70%)}
.why-visual-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text3);margin-bottom:20px;display:flex;align-items:center;gap:8px}
.why-visual-title::before{content:'';display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--yellow)}
.why-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:20px}
.why-item:last-child{margin-bottom:0}
.why-check{width:22px;height:22px;border-radius:6px;background:rgba(124,58,237,.15);border:1px solid rgba(124,58,237,.3);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.why-check svg{width:13px;height:13px;color:var(--purple2)}
.why-item-text strong{font-size:14px;font-weight:700;display:block;margin-bottom:2px}
.why-item-text span{font-size:13px;color:var(--text2)}
.why-list{margin-top:32px}
.why-list li{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--text2);margin-bottom:14px;line-height:1.5}
.why-list li svg{flex-shrink:0;color:var(--yellow2)}

/* ===== SECURITY ===== */
.security-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-top:48px}
.sec-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 24px;display:flex;gap:16px;align-items:flex-start}
.sec-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,rgba(245,197,66,.15),rgba(124,58,237,.1));border:1px solid rgba(245,197,66,.2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sec-icon svg{width:22px;height:22px;color:var(--yellow)}
.sec-card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.sec-card p{font-size:14px;color:var(--text2);line-height:1.55}

/* ===== CTA BANNER ===== */
.cta-banner{background:linear-gradient(135deg,rgba(124,58,237,.18) 0%,rgba(245,197,66,.06) 100%);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:80px 24px;text-align:center}
.cta-banner h2{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;letter-spacing:-.02em;margin-bottom:16px}
.cta-banner p{font-size:1rem;color:var(--text2);max-width:500px;margin:0 auto 36px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== FAQ ===== */
.faq-list{margin-top:40px;display:flex;flex-direction:column;gap:12px;max-width:800px;margin-left:auto;margin-right:auto}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq-q{width:100%;background:none;border:none;color:var(--text);font-size:15px;font-weight:600;text-align:left;padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;transition:var(--transition)}
.faq-q:hover{color:var(--purple2)}
.faq-q svg{flex-shrink:0;transition:transform .22s;color:var(--text3)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{font-size:14px;color:var(--text2);line-height:1.7;padding:0 24px 20px;display:none}
.faq-item.open .faq-a{display:block}

/* ===== FOOTER ===== */
.footer{background:var(--bg2);border-top:1px solid var(--border);padding:64px 24px 32px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
@media(max-width:900px){.footer-top{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:560px){.footer-top{grid-template-columns:1fr}}
.footer-brand p{font-size:14px;color:var(--text3);margin-top:12px;line-height:1.6;max-width:260px}
.footer-col h4{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text3);margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--text2);text-decoration:none;transition:var(--transition)}
.footer-col ul li a:hover{color:var(--text)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:var(--text3)}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-links{display:none}
  .hero{padding:72px 20px 60px}
  .section{padding:64px 20px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .feature-strip-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .hero-stats{grid-template-columns:1fr 1fr}
  .feature-strip-inner{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .nav-inner{padding:0 16px}
}