/* Landing page */
:root{--app-blue:#396afc;--app-blue-dark:#2948ff;--app-ink:#1d1d1f;--app-muted:#86868b;--app-line:rgba(0,0,0,.06);--app-soft:#fff;--app-white:#fff}
        *{box-sizing:border-box}
        body{margin:0;color:var(--app-ink);background:#fff;font-family:'OpenAI Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}
        .app-shell{overflow:hidden}
        .app-container{width:min(1180px,calc(100% - 40px));margin:0 auto}
        .app-hero{position:relative;padding:50px 0 0;background:#fff}
        .app-hero:after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(0,0,0,.055)}
        .app-hero-grid{display:flex;flex-direction:column;align-items:center;text-align:center;gap:54px}
        .app-hero-copy{display:flex;flex-direction:column;align-items:center}.app-hero-brand{display:inline-flex;margin-bottom:28px;transition:transform .25s ease}.app-hero-brand:hover{transform:scale(1.025)}.app-hero-brand img{display:block;width:min(290px,70vw);height:auto}
        .app-kicker{display:inline-flex;align-items:center;gap:9px;padding:9px 15px;border:1px solid rgba(57,106,252,.25);border-radius:999px;background:#fff;color:var(--app-blue-dark);font-size:.82rem;font-weight:900;letter-spacing:.07em;text-transform:uppercase;box-shadow:0 10px 25px rgba(57,106,252,.1)}
        .app-kicker:before{content:'';width:8px;height:8px;border-radius:50%;background:var(--app-blue);box-shadow:0 0 0 4px rgba(57,106,252,.12)}
        .app-hero h1{max-width:980px;margin:28px auto 24px;font-size:clamp(3rem,7.5vw,6.4rem);line-height:.96;letter-spacing:-.07em;font-weight:900;color:#1d1d1f}
        .app-hero h1 span{color:var(--app-blue)}
        .app-title-cycle{display:flex;align-items:center;justify-content:center;gap:.24em;width:100%;min-height:1.35em;margin:24px auto 0;color:#86868b;font-size:clamp(1rem,2vw,1.35rem);font-weight:600;line-height:1.3;letter-spacing:-.02em;text-align:center}.app-title-cycle b{display:inline-block;text-align:center;color:#396afc;font-weight:800;transition:opacity .28s ease,transform .28s ease}.app-title-cycle b.is-changing{opacity:0;transform:translateY(8px)}
        .app-lead{max-width:790px;margin:0 auto;color:#77777f;font-size:clamp(1.08rem,2vw,1.3rem);line-height:1.68}
        .app-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:13px;margin-top:34px}
        .app-button{min-height:56px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 28px;border-radius:999px;text-decoration:none;font-weight:850;transition:.2s ease}
        .app-button-primary{color:#fff;background:#396afc;border:1px solid #396afc;box-shadow:0 20px 40px rgba(57,106,252,.25)}
        .app-button-primary:hover{transform:translateY(-3px);box-shadow:0 25px 50px rgba(57,106,252,.4)}
        .app-button-secondary{color:var(--app-ink);background:#fff;border:1px solid var(--app-line)}
        .app-trust{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:29px;color:#17203a;font-size:.88rem;font-weight:850}
        .app-trust span{padding:9px 13px;border:1px solid #d5dced;border-radius:999px;background:rgba(255,255,255,.84)}
        .app-trust span:before{content:'✓';margin-right:7px;color:var(--app-blue);font-weight:900}
        .app-proof{position:relative;width:100%;max-width:100%;margin:54px 0 0;padding:0;border:none;border-radius:0;background:transparent;box-shadow:none;backdrop-filter:none}
        .app-proof img,.app-proof video{display:block;width:100%;max-width:100%;height:auto;border-radius:0}
        .app-proof-label{margin:0 0 20px;color:var(--app-muted);font-size:.82rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase}
        .app-proof-list{display:grid;gap:12px}
        .app-proof-item{display:grid;grid-template-columns:42px 1fr;gap:13px;align-items:center;padding:15px;border:1px solid #e5ebf8;border-radius:16px;background:#fff}
        .app-proof-number{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;color:#fff;background:var(--app-blue);font-weight:900}
        .app-proof-item strong{display:block;font-size:.98rem}.app-proof-item small{display:block;margin-top:4px;color:var(--app-muted);font-size:.82rem;line-height:1.4}
        .app-section{padding:92px 0;background:#fff}.app-section-soft{background:#fff}
        .app-section-head{max-width:800px;margin-bottom:44px}.app-eyebrow{display:inline-block;padding:7px 15px;border-radius:20px;background:rgba(57,106,252,.1);color:var(--app-blue);font-size:.8rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase}
        .app-section h2{margin:18px 0 17px;font-family:'OpenAI Sans',-apple-system,sans-serif;font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1.1;letter-spacing:-.04em;color:var(--app-ink)}.app-section-head p,.app-copy{color:var(--app-muted);font-size:1.08rem;font-weight:500;line-height:1.65;letter-spacing:0}
        .app-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.app-feature{padding:32px;border:1px solid rgba(255,255,255,.55);border-radius:34px;background:rgba(255,255,255,.42);box-shadow:0 22px 55px rgba(38,62,125,.07);backdrop-filter:blur(20px);transition:.3s ease}.app-feature:hover{transform:translateY(-6px);background:rgba(255,255,255,.72);box-shadow:0 28px 65px rgba(38,62,125,.12)}
        .app-feature-mark{width:44px;height:44px;display:grid;place-items:center;margin-bottom:21px;border-radius:13px;background:#eaf0ff;color:var(--app-blue);font-size:1.05rem;font-weight:900}
        .app-feature h3{margin:0 0 10px;font-size:1.18rem}.app-feature p{margin:0;color:var(--app-muted);line-height:1.65}
        .app-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;border:1px solid var(--app-line);border-radius:24px;overflow:hidden;background:var(--app-line)}
        .app-step{padding:32px 27px;background:rgba(255,255,255,.64)}.app-step span{display:block;margin-bottom:24px;color:var(--app-blue);font-size:.8rem;font-weight:900;letter-spacing:.08em}.app-step h3{margin:0 0 10px;font-size:1.08rem}.app-step p{margin:0;color:var(--app-muted);font-size:.94rem;line-height:1.6}
        .app-split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}.app-checks{display:grid;gap:16px}.app-check{padding:23px 25px;border:1px solid rgba(255,255,255,.7);border-radius:24px;background:rgba(255,255,255,.48);box-shadow:0 14px 38px rgba(38,62,125,.06);backdrop-filter:blur(18px)}.app-check strong{display:block;margin-bottom:5px;color:var(--app-blue-dark)}.app-check p{margin:0;color:var(--app-muted);line-height:1.55}
        .app-faq{width:100%;max-width:100%;margin:0 auto}.app-faq details{border-bottom:1px solid var(--app-line)}.app-faq summary{cursor:pointer;list-style:none;padding:25px 64px 25px 22px;font-size:1.05rem;font-weight:800;position:relative}.app-faq summary::-webkit-details-marker{display:none}.app-faq summary:after{content:'+';position:absolute;right:22px;top:21px;color:var(--app-blue);font-size:1.5rem}.app-faq details[open] summary{padding-bottom:14px}.app-faq details[open] summary:after{content:'−'}.app-faq details p{max-width:100%;margin:0 0 28px;padding:8px 22px 0;color:var(--app-muted);line-height:1.7}
        .app-seo-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.app-seo-card{padding:32px;border-radius:32px;border:1px solid rgba(255,255,255,.72);background:rgba(255,255,255,.46);box-shadow:0 18px 48px rgba(38,62,125,.06);backdrop-filter:blur(18px)}.app-seo-card h3{margin:0 0 12px;font-size:1.28rem}.app-seo-card p{margin:0;color:var(--app-muted);line-height:1.7}.app-resource-links{display:flex;flex-wrap:wrap;gap:11px;margin-top:26px}.app-resource-links a{padding:10px 14px;border:1px solid #cdd9f8;border-radius:999px;color:var(--app-blue-dark);background:rgba(255,255,255,.72);text-decoration:none;font-size:.9rem;font-weight:800}.app-resource-links a:hover{border-color:var(--app-blue);background:#fff}
        .app-format-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.app-format{padding:30px;border-radius:34px;background:rgba(255,255,255,.44);border:1px solid rgba(255,255,255,.72);box-shadow:0 20px 50px rgba(38,62,125,.07);backdrop-filter:blur(20px);transition:.3s ease}.app-format:hover{transform:translateY(-5px);background:rgba(255,255,255,.72)}.app-format strong{display:block;margin-bottom:8px;font-size:1.1rem}.app-format p{margin:0;color:var(--app-muted);line-height:1.6}.app-format-label{display:inline-block;margin-bottom:17px;padding:6px 10px;border-radius:999px;background:#e8eeff;color:var(--app-blue-dark);font-size:.72rem;font-weight:900;letter-spacing:.06em;text-transform:uppercase}
        .app-cta{padding:88px 0;background:#fff}.app-cta-card{position:relative;overflow:hidden;padding:60px;border-radius:30px;color:#1d1d1f;background:#fff;box-shadow:0 24px 60px rgba(0,0,0,.06)}.app-cta-card:after{content:'';position:absolute;width:260px;height:260px;right:-70px;top:-100px;border-radius:50%;background:var(--app-blue);opacity:.08}.app-cta-card h2{max-width:720px;margin:0 0 15px;font-size:clamp(2rem,4.5vw,3.7rem);line-height:1.05}.app-cta-card p{max-width:650px;margin:0 0 28px;color:#86868b;font-size:1.08rem;line-height:1.65}.app-cta-card .app-button{position:relative;z-index:1;background:#396afc;color:#fff}
        /* Home-page visual system: one canvas, solid cards, consistent type and spacing. */
        .app-shell,.app-hero,.app-section,.app-section-soft,.app-cta{background:#fff}
        .app-section{position:relative;padding:84px 0}
        .app-section + .app-section:before{content:'';position:absolute;top:0;left:50%;width:min(1180px,calc(100% - 40px));height:1px;transform:translateX(-50%);background:rgba(0,0,0,.055)}
        .app-feature,.app-format,.app-seo-card,.app-check{background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:40px;box-shadow:0 18px 45px rgba(0,0,0,.045);backdrop-filter:none}
        .app-feature:hover,.app-format:hover{background:#fff;border-color:rgba(57,106,252,.34);box-shadow:0 0 0 1px rgba(57,106,252,.08),0 20px 54px rgba(57,106,252,.18),0 8px 24px rgba(57,106,252,.1)}
        .app-feature,.app-format,.app-seo-card{position:relative;overflow:hidden;isolation:isolate}
        .app-feature:before,.app-format:before,.app-seo-card:before{content:'';position:absolute;z-index:-1;inset:0;background:#fff;transition:opacity .3s ease}
        .app-feature:after,.app-format:after,.app-seo-card:after{content:none}
        .app-feature h3,.app-format strong,.app-seo-card h3,.app-check strong,.app-step h3{color:#1d1d1f;font-family:'OpenAI Sans',-apple-system,sans-serif;font-weight:800;letter-spacing:-.02em;line-height:1.25}
        .app-feature p,.app-format p,.app-seo-card p,.app-check p,.app-step p{color:#86868b;font-weight:500;letter-spacing:0}
        .app-feature-mark{background:rgba(57,106,252,.1);color:#396afc;border-radius:15px}
        .app-feature-mark img{display:block;width:23px;height:23px;object-fit:contain}
        .app-steps{grid-template-columns:repeat(4,1fr);gap:20px;border:0;border-radius:0;overflow:visible;background:transparent}
        .app-step{padding:32px 28px;background:#fff;border:1px solid rgba(0,0,0,.06);border-radius:34px;box-shadow:0 18px 45px rgba(0,0,0,.045);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}.app-step:hover{transform:translateY(-4px);border-color:rgba(57,106,252,.34);box-shadow:0 0 0 1px rgba(57,106,252,.08),0 20px 54px rgba(57,106,252,.18),0 8px 24px rgba(57,106,252,.1)}
        .app-step span{color:#396afc;letter-spacing:.04em}
        .app-format-label{background:rgba(57,106,252,.1);color:#396afc;letter-spacing:.04em}
        .app-resource-links a{background:#fff;border-color:rgba(0,0,0,.07);color:#396afc;letter-spacing:0}
        .app-faq summary{color:#1d1d1f;font-weight:800;letter-spacing:-.015em}.app-faq details p{color:#86868b;font-weight:500}
        .app-check{background:#fff;border-color:rgba(0,0,0,.06);box-shadow:0 16px 40px rgba(0,0,0,.045)}
        .app-cta-card{padding:60px;border:1px solid rgba(0,0,0,.06);border-radius:50px;color:#1d1d1f;background:#fff;box-shadow:0 24px 60px rgba(0,0,0,.06)}
        .app-cta-card:after{background:#396afc;opacity:.08}.app-cta-card h2{font-weight:800;letter-spacing:-.04em}.app-cta-card p{color:#86868b;font-weight:500}.app-cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}.app-cta-card .app-button{background:#396afc;color:#fff;box-shadow:0 20px 40px rgba(57,106,252,.25)}.app-cta-card .app-button-secondary{background:#fff;color:#1d1d1f;border-color:rgba(0,0,0,.1);box-shadow:none}
        .app-button:focus-visible,.app-hero-brand:focus-visible,.app-resource-links a:focus-visible,.app-faq summary:focus-visible{outline:3px solid rgba(57,106,252,.42);outline-offset:4px}
        .app-motion .app-reveal{opacity:0;transform:translateY(24px);transition:opacity .65s cubic-bezier(.2,.75,.25,1),transform .65s cubic-bezier(.2,.75,.25,1);transition-delay:var(--app-reveal-delay,0ms)}
        .app-motion .app-reveal.is-visible{opacity:1;transform:none}
        .app-tilt-card{transform-style:preserve-3d;will-change:transform;transition:transform .18s ease-out,border-color .25s ease,box-shadow .25s ease}
        .app-tilt-card>*{transform:translateZ(10px)}
        .app-proof img,.app-proof video{animation:none}
        @keyframes app-banner-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
        @media(max-width:900px){.app-split{grid-template-columns:1fr}.app-feature-grid,.app-format-grid{grid-template-columns:repeat(2,1fr)}.app-steps{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:620px){.app-container{width:min(100% - 28px,1180px)}.app-hero{padding:44px 0 0}.app-hero-grid{gap:38px}.app-hero h1{font-size:clamp(2.55rem,14vw,4rem)}.app-feature-grid,.app-format-grid,.app-steps,.app-seo-grid{grid-template-columns:1fr}.app-section{padding:68px 0}.app-cta-card{padding:38px 24px}.app-actions .app-button,.app-cta-actions .app-button{width:100%}}
        @media(max-width:620px){.app-title-cycle{margin-top:18px;font-size:1rem}}
        @media(prefers-reduced-motion:reduce){html:focus-within{scroll-behavior:auto}.app-title-cycle b,.app-button,.app-feature,.app-format,.app-step,.app-hero-brand,.app-reveal,.app-tilt-card{transition:none!important}.app-feature:hover,.app-format:hover,.app-step:hover,.app-button-primary:hover{transform:none}.app-proof img,.app-proof video{animation:none}}