:root{
  --bg:#f4f6f8;--surface:#ffffff;--card:#ffffff;--ink:#121210;--muted:#69737d;--line:#dce3e9;
  --soft:#e8eef3;--soft2:#d7e1ea;--accent:#3e5f7f;--accent-dark:#2f4a65;--accent-soft:#dce7f0;
  --dark:#121210;--deep:#152331;--shadow:0 24px 70px rgba(37,61,84,.10);
  --r:20px;--rs:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}button{cursor:pointer}
.container{width:min(1460px,92vw);margin:auto}
.navbar{position:sticky;top:0;z-index:50;background:rgba(244,246,248,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-weight:950;letter-spacing:.05em}.brandmark{width:40px;height:40px;border-radius:12px;background:var(--dark);color:#fff;display:grid;place-items:center;font-size:11px}.brandmark-img{width:42px;height:42px;border-radius:50%;object-fit:cover;display:block;box-shadow:0 8px 24px rgba(18,18,16,.12)}
.navlinks{display:flex;gap:5px}.navlinks a{padding:9px 11px;border-radius:9px;font-size:11px;font-weight:850;color:#5f6973}.navlinks a:hover,.navlinks a.active{background:var(--accent-soft);color:var(--accent-dark)}
.nav-actions{display:flex;gap:8px}.btn{border:1px solid var(--line);background:#fff;color:var(--ink);padding:10px 14px;border-radius:11px;font-size:11px;font-weight:850;transition:.18s}.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(0,0,0,.06)}.btn.dark{background:var(--accent);color:#fff;border-color:var(--accent)}.btn.dark:hover{background:var(--accent-dark);border-color:var(--accent-dark);box-shadow:0 10px 30px rgba(62,95,127,.22)}.btn.large{padding:13px 18px;font-size:12px}.btn.block{width:100%}
.badge{display:inline-flex;padding:7px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent-dark);font-size:9px;font-weight:900;letter-spacing:.09em}
.hero{padding:76px 0 54px}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}.hero h1{font-size:clamp(52px,7vw,98px);line-height:.88;letter-spacing:-.065em;margin:18px 0 22px}.hero p{max-width:680px;color:var(--muted);font-size:16px;line-height:1.72}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.hero-trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:18px;color:var(--muted);font-size:10px;font-weight:750}.hero-trust span:before{content:"✓";color:var(--accent);font-weight:950;margin-right:6px}
.hero-visual{background:linear-gradient(145deg,var(--deep),#20384d);color:#fff;border-radius:28px;padding:20px;box-shadow:0 35px 90px rgba(20,20,18,.22)}.hero-tabs{display:grid;grid-template-columns:1fr 1fr;background:rgba(255,255,255,.08);border-radius:12px;padding:4px;margin-bottom:14px}.hero-tab{padding:10px;border-radius:9px;text-align:center;font-size:10px;font-weight:900;color:#b9c7d3}.hero-tab.active{background:#fff;color:var(--accent-dark)}
.hero-block{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);border-radius:13px;padding:13px;margin-top:9px}.hero-block small{display:block;color:#aebdca;font-size:8px;font-weight:900;margin-bottom:5px}.hero-block b{font-size:11px}.hero-output{background:rgba(5,12,18,.48);border:1px solid rgba(255,255,255,.12);border-radius:13px;padding:14px;margin-top:12px;font:10px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace;color:#e6edf3}
.section{padding:54px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:22px}.section-head h2{font-size:clamp(32px,4vw,58px);line-height:.95;letter-spacing:-.045em;margin:9px 0 0}.section-head p{max-width:540px;color:var(--muted);font-size:13px;line-height:1.6}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}.feature{padding:22px;min-height:205px}.feature .n{width:34px;height:34px;border-radius:11px;background:var(--accent-soft);color:var(--accent-dark);display:grid;place-items:center;font-size:10px;font-weight:900}.feature h3{font-size:17px;margin:28px 0 8px}.feature p{font-size:11px;line-height:1.55;color:var(--muted);margin:0}
.split-card{padding:24px;min-height:290px;position:relative;overflow:hidden}.split-card.dark{background:linear-gradient(145deg,var(--deep),#20384d);color:#fff}.split-card h3{font-size:30px;letter-spacing:-.04em;margin:10px 0}.split-card p{font-size:12px;color:var(--muted);line-height:1.6;max-width:520px}.split-card.dark p{color:#c7d2dc}.chips{display:flex;gap:7px;flex-wrap:wrap;margin-top:18px}.chip{padding:7px 9px;border-radius:999px;background:var(--soft);font-size:9px;font-weight:850}.dark .chip{background:rgba(255,255,255,.10);color:#e6edf3}
.cta{background:linear-gradient(135deg,var(--deep),var(--accent));color:#fff;border-radius:28px;padding:38px;display:flex;justify-content:space-between;align-items:center;gap:22px}.cta h2{font-size:clamp(36px,5vw,66px);letter-spacing:-.055em;line-height:.92;margin:0}.cta p{max-width:500px;color:#d1dbe4;font-size:12px;line-height:1.6}
.footer{padding:34px 0 44px;color:var(--muted);font-size:10px}.footer-inner{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:20px}
.pagehead{padding:46px 0 24px}.pagehead h1{font-size:clamp(46px,6vw,78px);line-height:.94;letter-spacing:-.055em;margin:14px 0 12px}.pagehead p{max-width:760px;color:var(--muted);line-height:1.65}
.mode-switch{display:grid;grid-template-columns:1fr 1fr;background:var(--soft);padding:4px;border-radius:12px;margin-bottom:16px}.mode-btn{padding:10px 12px;border-radius:9px;text-align:center;font-size:10px;font-weight:900;cursor:pointer;color:#69737d}.mode-btn.active{background:var(--accent);color:#fff}
.studio-layout{display:grid;grid-template-columns:205px minmax(0,1fr) minmax(360px,500px);gap:15px;align-items:start;padding-bottom:54px}.sidebar,.builder,.result{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}.sidebar{padding:12px;position:sticky;top:88px}.builder,.result{padding:18px}.result{position:sticky;top:88px}.side-label{padding:8px;font-size:8px;color:var(--muted);font-weight:900;letter-spacing:.13em}.side-link{padding:10px;border-radius:9px;font-size:10px;font-weight:850;cursor:pointer}.side-link:hover,.side-link.active{background:var(--soft)}
.block+.block{border-top:1px solid var(--line);padding-top:19px;margin-top:19px}.blockhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.blockhead h3{font-size:13px;margin:0}.blockhead span{font-size:8px;color:var(--muted);font-weight:900}.presets{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.preset{background:#fff;border:1px solid var(--line);border-radius:12px;padding:11px;cursor:pointer;min-height:72px}.preset:hover{border-color:var(--accent);box-shadow:0 8px 22px rgba(62,95,127,.10)}.preset b{font-size:10px;display:block}.preset small{display:block;font-size:8px;color:var(--muted);line-height:1.35;margin-top:5px}
.formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.field{display:flex;flex-direction:column;gap:5px}.field.full{grid-column:1/-1}label{font-size:8px;font-weight:900;letter-spacing:.07em;color:#4f5c68}select,input,textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 11px;font-size:10px;outline:none;color:var(--ink)}textarea{resize:vertical;min-height:76px;line-height:1.45}select:focus,input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(62,95,127,.12)}
.tags{display:flex;gap:6px;flex-wrap:wrap}.tag{border:1px solid var(--line);background:#fff;padding:7px 9px;border-radius:999px;font-size:8px;font-weight:850;cursor:pointer}.tag.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.output{background:var(--dark);color:#f2f5f8;border-radius:14px;padding:15px;min-height:440px;max-height:620px;overflow:auto;white-space:pre-wrap;font:10px/1.63 ui-monospace,SFMono-Regular,Menlo,monospace}.out-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:10px}.metric{background:var(--soft);border-radius:10px;padding:9px}.metric b{display:block;font-size:11px}.metric span{font-size:7px;color:var(--muted);font-weight:900}
.arch-only{display:none}.interior-only{display:block}
.library-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.filter{border:1px solid var(--line);background:#fff;padding:8px 10px;border-radius:999px;font-size:9px;font-weight:850}.filter.active{background:var(--accent);color:#fff;border-color:var(--accent)}.library-card{padding:15px}.lib-cover{height:150px;border-radius:13px;background:linear-gradient(135deg,#dce7f0,#6f89a2);position:relative;overflow:hidden}.lib-cover.arch{background:linear-gradient(135deg,#dfe6eb,#4d6f8e)}.lib-cover.dark{background:linear-gradient(135deg,#64819a,#152331)}.lib-cover:after{content:"";position:absolute;left:14%;right:14%;bottom:15%;height:48%;border-radius:8px;background:rgba(255,255,255,.72);clip-path:polygon(0 30%,32% 30%,32% 0,66% 0,66% 18%,100% 18%,100% 100%,0 100%)}.library-card h3{font-size:12px;margin:12px 0 5px}.library-card p{font-size:9px;color:var(--muted);line-height:1.45;margin:0 0 10px}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-bottom:54px}.price{padding:23px;display:flex;flex-direction:column}.price.featured{background:linear-gradient(145deg,var(--deep),#20384d);color:#fff;border-color:#2e4f6a}.price .plan{font-size:10px;font-weight:900}.price .amount{font-size:44px;font-weight:950;letter-spacing:-.05em;margin:14px 0}.price .amount span{font-size:11px;color:var(--muted)}.price.featured .amount span,.price.featured li,.price.featured .sub{color:#cad6df}.price .sub{font-size:10px;color:var(--muted);min-height:35px}.price ul{padding-left:17px;display:grid;gap:10px;font-size:10px;color:#55616c;margin:20px 0}.price .btn{margin-top:auto}
.dashboard-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:14px}.dash{padding:18px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}.stat{padding:15px}.stat b{font-size:22px;display:block}.stat span{font-size:8px;color:var(--muted);font-weight:900}.project-row{display:flex;justify-content:space-between;gap:10px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:11px;margin-top:8px}.project-row b{font-size:10px}.project-row small{display:block;color:var(--muted);font-size:8px;margin-top:3px}

::selection{background:var(--accent);color:#fff}

.btn:not(.dark):hover{border-color:#b7c7d5}
.card{transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.card:hover{border-color:#c8d6e1}
.price.featured .badge,.split-card.dark .badge,.cta .badge{background:rgba(255,255,255,.12);color:#fff}
@media(max-width:1160px){.studio-layout{grid-template-columns:180px 1fr}.result{grid-column:1/-1;position:static}.grid4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.navlinks{display:none}.hero-grid,.grid2,.dashboard-grid{grid-template-columns:1fr}.grid3,.price-grid{grid-template-columns:1fr}.studio-layout{grid-template-columns:1fr}.sidebar{position:static;display:flex;gap:4px;overflow:auto}.side-label{display:none}.side-link{white-space:nowrap}.hero{padding-top:46px}.hero h1{font-size:54px}}
@media(max-width:620px){.container{width:min(94vw,1460px)}.nav-actions .secondary{display:none}.grid4,.stats{grid-template-columns:1fr 1fr}.presets,.formgrid{grid-template-columns:1fr}.field.full{grid-column:auto}.cta{display:block;padding:26px}.cta .btn{margin-top:16px}.footer-inner{display:block}.footer-inner div+div{margin-top:7px}}


/* Structevo AI — Prompt Studio V2 */
.social-nav{color:var(--accent)!important}
.footer-links{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.footer-links a{color:var(--accent);font-weight:850}
.product-v2{background:linear-gradient(180deg,transparent,rgba(62,95,127,.035),transparent)}
.v2-grid{align-items:stretch}.feature-v2{padding:22px;min-height:285px;display:flex;flex-direction:column}.feature-v2 h3{font-size:22px;letter-spacing:-.03em;margin:22px 0 8px}.feature-v2>p{font-size:11px;line-height:1.6;color:var(--muted);margin:0 0 22px}.v2-icon{width:40px;height:40px;border-radius:13px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:10px;font-weight:950}.mini-upload{margin-top:auto;border:1px dashed #aebfce;background:var(--accent-soft);border-radius:13px;padding:14px;display:flex;gap:10px;align-items:center}.mini-upload>span{font-size:22px;color:var(--accent)}.mini-upload b,.mini-upload small{display:block}.mini-upload b{font-size:10px}.mini-upload small{font-size:8px;color:var(--muted);margin-top:3px}.strength-demo,.engine-demo{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}.strength-demo span,.engine-demo span{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 10px;font-size:8px;font-weight:850}.strength-demo span.active{background:var(--accent);border-color:var(--accent);color:#fff}.v2-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.field-help{font-size:8px;color:var(--muted);line-height:1.35}.engine-pills{display:flex;gap:5px;flex-wrap:wrap;margin-top:6px}.engine-pills button{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:5px 7px;font-size:7px;font-weight:850}.engine-pills button.active{background:var(--accent-soft);border-color:#b8cad9;color:var(--accent-dark)}
.upload-zone{border:1.5px dashed #aebfce;background:linear-gradient(135deg,#f8fafc,var(--accent-soft));border-radius:15px;padding:16px;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;cursor:pointer;transition:.18s}.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);box-shadow:0 0 0 4px rgba(62,95,127,.08)}.upload-plus{width:42px;height:42px;border-radius:13px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:24px}.upload-zone b{display:block;font-size:10px}.upload-zone p{font-size:8px;color:var(--muted);margin:4px 0 0}.upload-list{display:grid;gap:7px;margin-top:9px}.upload-item{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 9px;display:flex;align-items:center;justify-content:space-between;gap:10px}.upload-item-main{display:flex;gap:8px;align-items:center;min-width:0}.upload-thumb{width:34px;height:34px;border-radius:8px;background:var(--soft);display:grid;place-items:center;overflow:hidden;font-size:8px;font-weight:900;color:var(--accent-dark)}.upload-thumb img{width:100%;height:100%;object-fit:cover}.upload-meta{min-width:0}.upload-meta b{font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px;display:block}.upload-meta small{font-size:7px;color:var(--muted)}.remove-upload{border:0;background:transparent;color:var(--muted);font-size:15px;padding:4px}.reference-toggle{display:flex;gap:7px;align-items:flex-start;margin-top:10px;font-size:8px;color:var(--muted);letter-spacing:0;text-transform:none}.reference-toggle input{width:auto;margin-top:1px}.metrics.four{grid-template-columns:repeat(4,1fr)}
@media(max-width:620px){.upload-zone{grid-template-columns:auto 1fr}.upload-zone .btn{grid-column:1/-1;width:100%}.metrics.four{grid-template-columns:1fr 1fr}.footer-links{display:grid;gap:7px}.feature-v2{min-height:auto}}

.ig-btn{color:var(--accent);border-color:#bfd0dd;background:var(--accent-soft);display:inline-flex;align-items:center;justify-content:center;padding:10px}.ig-btn:hover{background:#d3e1ec}.nav-actions .ig-btn{min-width:40px;text-align:center}.ig-icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.output-placeholder{display:block;color:#9aa3aa;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:12px;line-height:1.55;padding:4px 0}

/* Structevo AI — Accounts */
.auth-body{min-height:100vh;background:radial-gradient(circle at 15% 10%,rgba(62,95,127,.12),transparent 32%),var(--bg)}
.auth-shell{min-height:calc(100vh - 73px);display:grid;place-items:center;padding:54px 18px}.auth-card{width:min(520px,100%);background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px;box-shadow:var(--shadow)}.auth-card-wide{width:min(680px,100%)}.auth-logo{width:58px;height:58px;border-radius:18px;overflow:hidden;margin-bottom:20px;box-shadow:0 10px 32px rgba(37,61,84,.14)}.auth-logo img{width:100%;height:100%;object-fit:cover}.auth-card h1{font-size:42px;line-height:.98;letter-spacing:-.05em;margin:14px 0 12px}.auth-card>p{color:var(--muted);font-size:12px;line-height:1.6}.auth-form{display:grid;gap:14px;margin-top:24px}.auth-form label{display:grid;gap:7px;font-size:9px;font-weight:900;letter-spacing:.06em;color:#46525e}.auth-form input{width:100%;border:1px solid var(--line);background:#fbfcfd;border-radius:12px;padding:13px 14px;outline:none;font-size:12px;color:var(--ink)}.auth-form input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(62,95,127,.08)}.auth-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.auth-submit{width:100%;padding:13px}.auth-message{border-radius:10px;padding:10px 12px;font-size:9px;font-weight:800;background:#fff0f0;color:#9f3838;border:1px solid #f0cccc}.auth-message.success{background:#eef8f1;color:#2e6c43;border-color:#cfe5d6}.auth-separator{display:flex;align-items:center;gap:10px;color:#98a2ab;font-size:9px;margin:16px 0}.auth-separator:before,.auth-separator:after{content:"";height:1px;background:var(--line);flex:1}.auth-check{display:flex!important;grid-template-columns:auto 1fr!important;align-items:flex-start;gap:8px!important;text-transform:none!important;letter-spacing:0!important;font-weight:650!important}.auth-check input{width:auto;margin-top:1px}.auth-switch{text-align:center;font-size:10px!important;margin:16px 0 0}.auth-switch a{color:var(--accent);font-weight:900}.auth-footnote{font-size:8px!important;color:#97a0a8!important;text-align:center;margin:16px auto 0!important;max-width:520px}
.dashboard-head{display:flex;align-items:end;justify-content:space-between;gap:20px}.dashboard-head h1 span{color:var(--accent)}.dashboard-grid-v2{align-items:start}.dashboard-side{display:grid;gap:14px}.account-summary-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.account-summary h3{font-size:30px;margin:10px 0 0}.usage-line{margin-top:22px}.usage-line>div:first-child{display:flex;justify-content:space-between;font-size:9px;color:var(--muted);font-weight:800}.usage-bar{height:8px;background:var(--soft);border-radius:999px;overflow:hidden;margin-top:8px}.usage-bar span{display:block;width:0;height:100%;background:var(--accent);border-radius:999px;transition:.3s}.account-page{padding-bottom:60px}.account-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}.account-grid .card{padding:24px}.account-profile{display:flex;align-items:center;gap:18px}.account-avatar{width:72px;height:72px;border-radius:20px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:0;font-weight:950}.account-avatar:before{content:attr(data-user-name);font-size:13px;max-width:58px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-profile h2,.account-plan h2,.account-security h2{font-size:28px;letter-spacing:-.04em;margin:12px 0 7px}.account-profile p,.account-plan p,.account-security p{font-size:10px;line-height:1.6;color:var(--muted)}.account-security{grid-column:1/-1}
@media(max-width:900px){.dashboard-head{align-items:flex-start;display:grid}.account-grid{grid-template-columns:1fr}}
@media(max-width:620px){.auth-shell{padding:26px 12px}.auth-card{padding:24px 18px;border-radius:22px}.auth-card h1{font-size:34px}.auth-grid{grid-template-columns:1fr}.nav-actions .auth-login{display:none}.account-profile{align-items:flex-start}.account-avatar{width:58px;height:58px;border-radius:16px}}