:root { color-scheme: light; --navy:#0f1d35; --blue:#2454d6; --blue-dark:#1e40af; --blue-soft:#eef4ff; --page:#f7f9fc; --white:#fff; --text:#17202f; --muted:#64748b; --border:#d8dee8; --green:#16835f; --amber:#b7791f; --danger:#c2414f; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; min-width:320px; color:var(--text); background:var(--white); font-family:Inter,Pretendard,system-ui,-apple-system,"Segoe UI",sans-serif; }
button,a,input { font:inherit; }
button,a { -webkit-tap-highlight-color:transparent; }
.site-header { position:sticky; top:0; z-index:10; height:68px; padding:0 max(24px,calc((100vw - 1180px)/2)); display:flex; align-items:center; gap:34px; border-bottom:1px solid #e6ebf2; background:rgb(255 255 255 / 95%); backdrop-filter:blur(12px); }
.site-brand { display:inline-flex; align-items:center; gap:10px; color:var(--navy); text-decoration:none; }
.site-brand span { width:34px; height:34px; display:grid; place-items:center; border-radius:8px; color:#fff; background:var(--blue); font-weight:900; }
.site-brand strong { font-size:17px; }
.site-header nav { display:flex; align-items:center; gap:28px; }
.site-header nav a { color:#45546c; font-size:13px; font-weight:650; text-decoration:none; }
.site-header nav a:hover { color:var(--blue); }
.login-button { margin-left:auto; }
.button { min-height:40px; padding:0 18px; display:inline-flex; align-items:center; justify-content:center; border:1px solid var(--border); border-radius:7px; color:var(--navy); background:#fff; font-size:13px; font-weight:750; text-decoration:none; cursor:pointer; }
.button.primary { border-color:var(--blue); color:#fff; background:var(--blue); }
.button.primary:hover { background:var(--blue-dark); }
.button.secondary:hover { border-color:#aeb9ca; background:#f8fafc; }
.button.light { border-color:#fff; color:var(--blue); background:#fff; }
.button.full { width:100%; margin-top:5px; }
.hero { min-height:620px; padding:82px max(24px,calc((100vw - 1180px)/2)); display:grid; grid-template-columns:minmax(0,1fr) minmax(480px,.9fr); align-items:center; gap:70px; background:linear-gradient(180deg,#f6f9ff 0%,#fff 100%); }
.eyebrow { margin:0 0 12px; color:var(--blue); font-size:11px; font-weight:850; letter-spacing:.12em; }
.hero h1 { margin:0; color:var(--navy); font-size:52px; line-height:1.16; letter-spacing:-.045em; }
.hero-description { max-width:590px; margin:24px 0 0; color:#52627a; font-size:17px; line-height:1.75; }
.hero-actions { margin-top:30px; display:flex; gap:10px; }
.hero-actions .button { min-height:46px; padding:0 22px; }
.trust-list { margin:25px 0 0; padding:0; display:flex; gap:20px; color:var(--muted); font-size:12px; list-style:none; }
.trust-list li::before { content:"✓"; margin-right:6px; color:var(--green); font-weight:900; }
.product-preview { overflow:hidden; border:1px solid #cfd8e7; border-radius:12px; background:#fff; box-shadow:0 26px 60px rgb(29 57 104 / 16%); transform:perspective(1200px) rotateY(-2deg); }
.preview-top { height:54px; padding:0 18px; display:flex; align-items:center; gap:10px; color:#fff; background:var(--navy); }
.preview-top span { width:9px; height:9px; border-radius:50%; background:#34d399; }
.preview-top strong { font-size:13px; }.preview-top small { margin-left:auto; padding:5px 8px; border-radius:5px; background:rgb(255 255 255 / 10%); }
.preview-metrics { padding:18px; display:grid; grid-template-columns:repeat(3,1fr); gap:10px; background:#f6f8fb; }
.preview-metrics article { padding:15px; border:1px solid var(--border); border-radius:7px; background:#fff; }.preview-metrics span{display:block;color:var(--muted);font-size:10px}.preview-metrics strong{display:block;margin-top:7px;font-size:26px}
.preview-list { padding:7px 18px 18px; }.preview-list>div{padding:14px 4px;display:grid;grid-template-columns:8px 1fr auto;align-items:center;gap:12px;border-bottom:1px solid #edf0f4}.preview-list i{width:8px;height:8px;border-radius:50%}.preview-list i.success{background:var(--green)}.preview-list i.info{background:var(--blue)}.preview-list i.warning{background:var(--amber)}.preview-list span strong,.preview-list span small{display:block}.preview-list span strong{font-size:12px}.preview-list span small{margin-top:3px;color:var(--muted);font-size:10px}.preview-list b{color:#425168;font-size:11px}
.section { padding:94px max(24px,calc((100vw - 1180px)/2)); }
.section-heading { max-width:680px; margin-bottom:40px; }.section-heading h2{margin:0;color:var(--navy);font-size:34px;letter-spacing:-.03em}.section-heading>p:last-child{margin:13px 0 0;color:var(--muted);font-size:15px}
.feature-grid { display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--border); border-bottom:1px solid var(--border); }.feature-grid article{min-height:230px;padding:30px 26px;border-right:1px solid var(--border)}.feature-grid article:last-child{border-right:0}.feature-grid article>span{color:var(--blue);font-size:11px;font-weight:850}.feature-grid h3{margin:35px 0 12px;font-size:17px}.feature-grid p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
.pricing-section { background:var(--page); }.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.pricing-grid article{position:relative;padding:30px;border:1px solid var(--border);border-radius:10px;background:#fff}.pricing-grid article.recommended{border:2px solid var(--blue);box-shadow:0 14px 40px rgb(36 84 214 / 10%)}.pricing-grid em{position:absolute;top:-13px;left:24px;padding:6px 10px;border-radius:5px;color:#fff;background:var(--blue);font-size:10px;font-style:normal;font-weight:800}.pricing-grid article>p{margin:0;color:var(--blue);font-size:10px;font-weight:850;letter-spacing:.1em}.pricing-grid h3{margin:8px 0 22px;font-size:20px}.pricing-grid article>strong{min-height:40px;display:block;font-size:25px;letter-spacing:-.04em}.pricing-grid strong small{color:var(--muted);font-size:11px;font-weight:500}.pricing-grid ul{min-height:150px;margin:24px 0;padding:20px 0 0;border-top:1px solid #edf0f4;list-style:none}.pricing-grid li{margin:11px 0;color:#4b5c74;font-size:12px}.pricing-grid li::before{content:"✓";margin-right:8px;color:var(--green);font-weight:900}.pricing-grid .button{width:100%}.pricing-note{margin:18px 0 0;color:var(--muted);font-size:11px;text-align:center}
.guide-section ol{margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);list-style:none}.guide-section li{position:relative;padding:0 26px 0 0;display:flex;gap:14px}.guide-section li:not(:last-child)::after{content:"→";position:absolute;right:18px;top:10px;color:#b4bfd0}.guide-section li>span{width:34px;height:34px;flex:0 0 auto;display:grid;place-items:center;border-radius:50%;color:var(--blue);background:var(--blue-soft);font-size:12px;font-weight:850}.guide-section strong{font-size:14px}.guide-section p{margin:7px 0 0;color:var(--muted);font-size:12px;line-height:1.6}
.final-cta { margin:0 max(24px,calc((100vw - 1180px)/2)) 80px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-radius:12px;color:#fff;background:var(--blue)}.final-cta h2{margin:0;font-size:24px}.final-cta p{margin:8px 0 0;color:#dbe6ff;font-size:13px}.site-footer{padding:38px max(24px,calc((100vw - 1180px)/2));display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:25px;border-top:1px solid var(--border);color:var(--muted)}.site-footer p,.site-footer small{font-size:11px}.site-footer small{text-align:right}
dialog { width:min(460px,calc(100% - 28px)); max-height:calc(100vh - 32px); padding:0; border:0; border-radius:12px; box-shadow:0 30px 90px rgb(6 22 47 / 30%); }dialog::backdrop{background:rgb(8 24 50 / 58%)}.auth-shell{position:relative;padding:34px}.close-button{position:absolute;top:17px;right:17px;width:34px;height:34px;border:0;border-radius:6px;color:#52627a;background:#f1f4f8;font-size:22px;cursor:pointer}.auth-form h2{margin:0;font-size:25px}.auth-form>p:not(.eyebrow){margin:8px 0 22px;color:var(--muted);font-size:12px}.auth-form label{margin-top:14px;display:grid;gap:6px;color:#425168;font-size:11px;font-weight:700}.auth-form label small{color:var(--muted);font-weight:500}.auth-form input{width:100%;height:42px;padding:0 12px;border:1px solid var(--border);border-radius:6px;color:var(--text);background:#fff;outline:0}.auth-form input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgb(36 84 214 / 12%)}.auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.text-button{width:100%;margin-top:13px;border:0;color:var(--blue);background:transparent;font-size:12px;font-weight:750;cursor:pointer}.form-message{margin-top:13px;padding:10px 12px;border-radius:6px;font-size:11px;line-height:1.5}.form-message.error{border:1px solid #f1bbb7;color:var(--danger);background:#fff5f4}.form-message.info{border:1px solid #bfd3f8;color:#1e4a9d;background:#f3f7ff}[hidden]{display:none!important}
@media(max-width:900px){.site-header nav{display:none}.hero{padding-top:54px;grid-template-columns:1fr;gap:45px}.hero h1{font-size:43px}.product-preview{transform:none}.feature-grid{grid-template-columns:repeat(2,1fr)}.feature-grid article:nth-child(2){border-right:0}.feature-grid article:nth-child(-n+2){border-bottom:1px solid var(--border)}.pricing-grid{grid-template-columns:1fr}.guide-section ol{grid-template-columns:1fr 1fr;gap:28px}.guide-section li::after{display:none}}
@media(max-width:560px){.site-header{height:60px;padding:0 14px}.site-brand strong{font-size:15px}.site-header .button{min-height:36px;padding:0 12px;font-size:11px}.hero{min-height:0;padding:48px 18px 58px}.hero h1{font-size:36px}.hero-description{font-size:14px}.hero-actions{align-items:stretch;flex-direction:column}.trust-list{align-items:flex-start;flex-direction:column;gap:8px}.preview-metrics{grid-template-columns:1fr 1fr}.preview-metrics article:last-child{display:none}.section{padding:70px 18px}.section-heading h2{font-size:27px}.feature-grid{grid-template-columns:1fr}.feature-grid article{min-height:180px;border-right:0;border-bottom:1px solid var(--border)}.feature-grid article:last-child{border-bottom:0}.feature-grid h3{margin-top:22px}.guide-section ol{grid-template-columns:1fr}.final-cta{margin:0 18px 56px;padding:28px;align-items:stretch;flex-direction:column}.site-footer{padding:30px 18px;grid-template-columns:1fr}.site-footer p,.site-footer small{margin:0;text-align:left}.auth-shell{padding:30px 20px}.auth-grid{grid-template-columns:1fr}}