:root{
  --bg:#05060a;--bg2:#0a0c12;--panel:#12141e;--panel2:#171a26;--soft:#1f2432;--line:rgba(255,255,255,.08);--line2:rgba(156,255,40,.35);
  --text:#f7fbff;--muted:#aebbd1;--dim:#748199;--green:#9cff28;--green2:#68ffad;--gold:#f5ba20;--red:#ff5473;--purple:#7d42ff;
  --shadow:0 34px 120px rgba(0,0,0,.45);--max:1600px;--header:96px;--r:22px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Noto Sans KR",sans-serif;color:var(--text);background:var(--bg);overflow-x:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:16px;background:#0d1018;color:var(--text);padding:14px 16px;outline:none}textarea{min-height:110px;resize:vertical}.hidden{display:none!important}.green,.accent{color:var(--green)}.gold{color:var(--gold)}.danger{color:var(--red)}.muted{color:var(--muted)}.mono{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}.center{text-align:center}.ambient{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden;background:#05060a}.ambient::before{content:"";position:absolute;inset:-20%;background:linear-gradient(105deg,transparent 0 40%,rgba(26,96,203,.22) 48%,transparent 58%),radial-gradient(circle at 78% 18%,rgba(156,255,40,.11),transparent 22%),radial-gradient(circle at 20% 86%,rgba(125,66,255,.14),transparent 28%);filter:blur(10px);animation:drift 16s ease-in-out infinite alternate}.ambient::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:84px 84px;mask-image:radial-gradient(circle at center,black,transparent 76%);opacity:.35}.scanline{position:fixed;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(to bottom,transparent,rgba(156,255,40,.035),transparent);height:28vh;animation:scan 8s linear infinite}.orb{position:fixed;right:28px;bottom:28px;width:10px;height:10px;border-radius:999px;background:var(--purple);box-shadow:0 0 28px var(--purple);z-index:30;animation:pulse 2s ease-in-out infinite}@keyframes drift{from{transform:translate3d(-2%,-1%,0) scale(1.02)}to{transform:translate3d(2%,2%,0) scale(1.08)}}@keyframes scan{from{transform:translateY(-35vh)}to{transform:translateY(120vh)}}@keyframes pulse{50%{transform:scale(1.4);opacity:.75}}.topbar{height:var(--header);display:flex;align-items:center;justify-content:space-between;padding:0 44px;background:rgba(5,6,10,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}.brand{display:flex;align-items:center;gap:12px;min-width:210px}.logo{width:46px;height:46px;border-radius:12px;background:var(--green);color:#061008;font-weight:900;display:grid;place-items:center;box-shadow:0 0 34px rgba(156,255,40,.28)}.brand-main{display:block;font-size:22px;font-weight:900}.brand-sub{display:block;font-size:13px;color:#667187}.nav{display:flex;align-items:center;gap:34px;color:#cfd7e7;font-size:18px}.nav a{opacity:.72;transition:.2s}.nav a:hover,.nav a.active{opacity:1;color:#fff}.admin-nav{display:none}.admin-visible .admin-nav{display:inline}.actions{display:flex;align-items:center;gap:16px;min-width:250px;justify-content:flex-end}.role-pill{display:none;border:1px solid var(--line2);background:rgba(156,255,40,.1);color:var(--green);padding:7px 10px;border-radius:999px;font-size:12px;font-weight:800}.logged-in .role-pill{display:inline-flex}.login-link{background:transparent;color:#fff;font-size:17px}.cta,.ghost,.danger-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px;padding:15px 26px;font-weight:900;transition:.2s}.cta{background:var(--green);color:#061008;box-shadow:0 12px 38px rgba(156,255,40,.22)}.cta:hover{transform:translateY(-2px);box-shadow:0 16px 48px rgba(156,255,40,.33)}.ghost{background:#222534;color:#fff;border:1px solid var(--line)}.danger-btn{background:rgba(255,84,115,.12);color:#ff8da0;border:1px solid rgba(255,84,115,.28)}.small-btn{padding:9px 13px;border-radius:12px;background:#232838;color:#fff;border:1px solid var(--line);font-weight:800}.section-xl{padding:108px 0}.section-tight{padding:48px 0}.container{width:min(var(--max),calc(100% - 120px));margin:0 auto}.narrow{width:min(980px,calc(100% - 80px));margin:0 auto;text-align:center}.hero{min-height:calc(100vh - var(--header));display:grid;place-items:center;padding:70px 0 42px;background:radial-gradient(circle at 52% 70%,rgba(156,255,40,.08),transparent 22%),linear-gradient(115deg,rgba(0,24,82,.54),transparent 55%)}.hero-inner{width:min(1200px,calc(100% - 72px));text-align:center}.hero-title{font-size:clamp(58px,8vw,118px);line-height:.9;margin:0;font-weight:950;letter-spacing:-.06em}.hero-title .accent{display:block}.hero-desc{max-width:900px;margin:34px auto 0;color:#bdd0ec;font-size:23px;line-height:1.6}.hero-visuals{height:260px;margin-top:46px;position:relative}.floating-card{position:absolute;left:50%;top:20px;width:360px;height:210px;border:1px solid rgba(156,255,40,.25);border-radius:18px;background:linear-gradient(145deg,rgba(22,255,130,.1),rgba(16,18,26,.92));box-shadow:var(--shadow);display:grid;place-items:center;overflow:hidden;animation:float 5s ease-in-out infinite}.floating-card.one{transform:translateX(-440px) rotate(-4deg);animation-delay:.4s}.floating-card.two{transform:translateX(-180px);z-index:2;width:410px;height:230px}.floating-card.three{transform:translateX(250px) rotate(4deg);animation-delay:.9s}.code-lines{font-family:Consolas,monospace;text-align:left;color:#a7ff5a;line-height:1.8;opacity:.9}.node-diagram{width:170px;height:170px;border:1px solid rgba(156,255,40,.28);border-radius:20px;display:grid;place-items:center;position:relative}.node-diagram span{position:absolute;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle,var(--green),#1d6e38);font-weight:900;color:#06200d;box-shadow:0 0 24px rgba(156,255,40,.24)}.node-diagram .n1{top:12px}.node-diagram .n2{left:14px;top:70px}.node-diagram .n3{right:14px;top:70px}.node-diagram .n4{bottom:12px}@keyframes float{50%{margin-top:-14px}}.title-lg{font-size:clamp(42px,5.2vw,82px);line-height:1.02;letter-spacing:-.06em;margin:12px 0 24px}.title{font-size:clamp(34px,4vw,58px);letter-spacing:-.04em;margin:8px 0 20px}.lead{font-size:21px;line-height:1.65;color:#b4c4dc;max-width:900px}.eyebrow,.kicker{color:var(--green);font-weight:900;letter-spacing:.08em;text-transform:uppercase}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.grid-5{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px}.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.panel,.card{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.015));border:1px solid var(--line);border-radius:var(--r);box-shadow:0 26px 90px rgba(0,0,0,.22)}.panel.pad,.card{padding:32px}.card h3,.panel h2{margin:0 0 14px}.card p,.panel p{color:var(--muted);line-height:1.65}.card:hover,.panel:hover{border-color:rgba(156,255,40,.24)}.icon{width:52px;height:52px;border-radius:14px;background:rgba(156,255,40,.12);color:var(--green);display:grid;place-items:center;font-size:24px;font-weight:900;margin-bottom:22px}.stat-row{display:flex;gap:42px;margin-top:52px}.stat strong{font-size:56px;display:block}.stat span{color:var(--muted)}.feature-img{height:440px;border-radius:24px;overflow:hidden;position:relative;background:radial-gradient(circle at 44% 45%,rgba(156,255,40,.35),transparent 22%),linear-gradient(135deg,#07120c,#111827)}.feature-img::before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(156,255,40,.16) 1px,transparent 1px),linear-gradient(rgba(156,255,40,.14) 1px,transparent 1px);background-size:48px 48px;opacity:.35;transform:perspective(400px) rotateX(52deg) scale(1.8);transform-origin:bottom}.feature-img .caption{position:absolute;left:28px;bottom:28px}.feature-img h2{font-size:42px;margin:0}.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.plan{overflow:hidden;position:relative}.plan::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 0 42%,rgba(255,255,255,.06),transparent 58%);transform:translateX(-120%);transition:.8s}.plan:hover::after{transform:translateX(120%)}.plan.popular{border-color:var(--line2)}.plan-visual{height:220px;background:radial-gradient(circle at 55% 50%,rgba(156,255,40,.22),transparent 28%),linear-gradient(135deg,#08140e,#0a0d15);position:relative;padding:18px}.plan-visual.circuit{background:radial-gradient(circle at 60% 40%,rgba(156,255,40,.22),transparent 25%),linear-gradient(135deg,#08140e,#152027)}.plan-visual.shield{background:radial-gradient(circle at 50% 50%,rgba(245,186,32,.16),transparent 25%),linear-gradient(135deg,#08140e,#171516)}.badge,.sale,.upgrade{position:absolute;border-radius:999px;padding:8px 14px;font-weight:900}.badge{left:18px;top:18px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.15)}.badge.green{color:var(--green);border-color:rgba(156,255,40,.3);background:rgba(156,255,40,.09)}.badge.gold{color:var(--gold);border-color:rgba(245,186,32,.28);background:rgba(245,186,32,.09)}.sale{right:18px;top:18px;background:var(--green);color:#061008}.upgrade{left:28px;right:28px;bottom:24px;background:var(--gold);color:#061008;text-align:center}.plan-body{padding:28px}.tags{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0}.tag{padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.055);color:#90a0bb;font-size:13px}.price{font-size:30px;font-weight:950;margin:22px 0}.old{font-size:16px;color:#68768f;text-decoration:line-through;margin-left:8px}.choose{width:100%;margin-top:8px}.summary-line{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:14px 0;color:var(--muted)}.summary-line strong{color:#fff}.form-grid{display:grid;gap:14px}.terminal,.tree{background:#0a0c12;border:1px solid rgba(255,255,255,.05);border-radius:18px;padding:24px;font-family:Consolas,monospace;color:#aebbd1;line-height:1.8}.ok{color:var(--green)}.comment{color:#69768f}.modal{position:fixed;inset:0;background:rgba(0,0,0,.68);display:none;align-items:center;justify-content:center;z-index:100;padding:24px}.modal.show{display:flex}.modal-card{width:min(520px,100%);background:#11141e;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.close{background:transparent;color:#fff;font-size:24px}.toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);opacity:0;background:#10141e;border:1px solid var(--line2);color:#fff;padding:14px 18px;border-radius:999px;z-index:120;transition:.25s;box-shadow:var(--shadow)}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.footer{background:#05060a;border-top:1px solid var(--line);padding:64px 44px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.footer h4{margin:0 0 18px}.footer a,.footer p{display:block;color:#9cabbe;margin:12px 0}.table{width:100%;border-collapse:collapse;background:#11141e;border:1px solid var(--line);border-radius:18px;overflow:hidden}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);padding:14px;color:#b7c4d9}.table th{color:#fff;background:rgba(255,255,255,.035)}.admin-only{display:none}.admin-visible .admin-only{display:block}.product-manager,.data-manager{margin-top:28px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:18px 0}.filters{display:flex;gap:12px;flex-wrap:wrap}.empty{padding:40px;border:1px dashed rgba(255,255,255,.12);border-radius:20px;color:var(--muted);text-align:center}.tab-list{display:grid;grid-template-columns:260px 1fr;gap:28px}.side-tabs{display:grid;gap:10px}.tab-button{background:#12141e;border:1px solid var(--line);border-radius:14px;color:#b6c4da;padding:18px;text-align:left;font-weight:800}.tab-button.active{border-color:var(--line2);background:rgba(156,255,40,.08);color:var(--green)}.download-item{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;border:1px solid var(--line);border-radius:18px;padding:18px;background:rgba(255,255,255,.025);margin-top:12px}.cart-drawer{position:fixed;right:24px;bottom:24px;z-index:70;width:min(460px,calc(100% - 48px));display:none}.cart-drawer.show{display:block}.license-box{border-left:3px solid var(--green);padding:18px 22px;background:rgba(156,255,40,.06);border-radius:16px;color:#c8d5e9}.admin-gate{min-height:calc(100vh - var(--header));display:grid;place-items:center}.avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--green2));color:#061008;display:grid;place-items:center;font-weight:950}.user-strip{display:flex;align-items:center;gap:14px}.data-box{display:flex;gap:12px;flex-wrap:wrap}.progress{height:10px;background:#0d1018;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--green2));border-radius:999px}@media(max-width:1100px){.grid-5,.grid-4,.grid-3,.plan-grid,.split,.grid-2{grid-template-columns:1fr}.container{width:calc(100% - 48px)}.topbar{padding:0 18px}.nav{gap:14px;font-size:15px}.actions{min-width:0}.hero-visuals{height:auto;display:grid;gap:12px}.floating-card{position:relative;left:auto;top:auto;transform:none!important;width:100%!important;height:160px}.footer-grid{grid-template-columns:1fr 1fr}.tab-list{grid-template-columns:1fr}.hero-title{font-size:58px}}@media(max-width:720px){.topbar{height:auto;min-height:92px;align-items:flex-start;padding-top:16px;flex-wrap:wrap}.brand{min-width:0}.nav{order:3;width:100%;overflow:auto;padding-bottom:12px}.cta{padding:12px 18px}.hero{min-height:auto}.section-xl{padding:72px 0}.footer-grid{grid-template-columns:1fr}.title-lg{font-size:44px}.lead{font-size:18px}}
.admin-only-user{display:none}.logged-in .admin-only-user{display:inline}


/* functional completion layer: keeps the earlier premium visual tone while supporting complete MVP controls */
.grid-bg{position:fixed;inset:0;pointer-events:none;z-index:-3;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(to bottom,black,transparent 84%)}
.mobile-menu{display:none}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px;justify-content:center}.hero-panel{position:relative;min-height:520px;border:1px solid var(--line);border-radius:36px;background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025));box-shadow:var(--shadow);overflow:hidden}.term-head{display:flex;gap:7px;padding:14px;border-bottom:1px solid var(--line)}.dot{width:10px;height:10px;border-radius:50%;background:var(--green)}.dot:nth-child(2){background:var(--gold)}.dot:nth-child(3){background:var(--red)}.term-body{padding:22px;color:#cbe5d0;font-family:Consolas,monospace;line-height:1.8}.graph-card{position:relative;min-height:240px;border:1px solid var(--line);border-radius:28px;background:rgba(12,17,25,.78);padding:28px;margin:28px}.node{position:absolute;width:72px;height:72px;border-radius:24px;display:grid;place-items:center;border:1px solid var(--line2);background:rgba(156,255,40,.1);font-weight:900;box-shadow:0 0 30px rgba(156,255,40,.18)}.node.n1{left:40px;top:40px}.node.n2{right:80px;top:34px}.node.n3{left:45%;bottom:36px}.node.n4{right:30px;bottom:50px}.line{position:absolute;height:1px;background:linear-gradient(90deg,transparent,var(--green),transparent);opacity:.7}.line.l1{left:112px;top:74px;width:260px}.line.l2{right:110px;top:106px;width:220px;transform:rotate(118deg)}.line.l3{left:160px;bottom:84px;width:250px;transform:rotate(-18deg)}
.form-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.tabs{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.tabs button{border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.055);color:var(--muted);padding:12px 16px}.tabs button.active{color:#061008;background:var(--green);border-color:transparent;font-weight:900}.invoice{border:1px solid var(--line);border-radius:20px;padding:22px;background:rgba(255,255,255,.035)}.kpi{border:1px solid var(--line);border-radius:18px;padding:18px;background:rgba(255,255,255,.035)}.kpi strong{display:block;font-size:26px;color:var(--green)}.mini-kpi{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.status{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:7px 10px;font-size:12px;font-weight:900}.status.paid{color:var(--gold);border-color:rgba(245,186,32,.4);background:rgba(245,186,32,.08)}.status.pending{color:#80c8ff;border-color:rgba(80,180,255,.36);background:rgba(80,180,255,.08)}.status.cancelled,.status.refunded{color:var(--red);border-color:rgba(255,84,115,.36);background:rgba(255,84,115,.08)}.license-key{font-family:Consolas,monospace;color:var(--green2);border:1px solid var(--line2);border-radius:999px;padding:7px 10px;background:rgba(156,255,40,.08)}.admin-grid{display:grid;grid-template-columns:280px 1fr;gap:24px}.admin-side{position:sticky;top:120px;align-self:start}.side-link{display:block;padding:13px 15px;border-radius:14px;color:var(--muted);border:1px solid transparent}.side-link:hover,.side-link.active{background:rgba(255,255,255,.06);border-color:var(--line);color:var(--text)}.input{width:100%;border:1px solid var(--line);border-radius:16px;background:#0d1018;color:var(--text);padding:14px 16px;outline:none}.terminal-output{font-family:Consolas,monospace;border:1px solid var(--line);border-radius:20px;padding:20px;background:#05070b;color:#c9ffd1;min-height:180px;line-height:1.8}.progress{height:12px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}.bar{height:100%;width:0;background:linear-gradient(90deg,var(--green),var(--green2));transition:.4s}.data-box{display:flex;gap:12px;flex-wrap:wrap}.filters{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.cart-drawer{position:fixed;right:24px;bottom:24px;z-index:70;width:min(460px,calc(100% - 48px));display:none}.cart-drawer.show{display:block}.admin-only-user{display:none}.logged-in .admin-only-user{display:inline}.admin-nav{display:none}.admin-visible .admin-nav{display:inline}.grid-4 .kpi{min-height:110px}@media(max-width:1100px){.mini-kpi,.admin-grid,.form-2{grid-template-columns:1fr}.admin-side{position:static}}


/* development note page layer */
.devnote-hero{background:radial-gradient(circle at 22% 40%,rgba(156,255,40,.11),transparent 24%),linear-gradient(180deg,rgba(255,255,255,.015),transparent 70%)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}.devnote-kpis .kpi{position:relative;overflow:hidden}.devnote-kpis .kpi:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent,rgba(156,255,40,.08),transparent);transform:translateX(-120%);animation:sheenFlow 6s ease-in-out infinite}.devnote-kpis .kpi p{margin:6px 0 0;color:var(--muted)}
.devnote-tree{margin-top:20px;padding:20px;border-radius:18px;border:1px solid var(--line);background:#06090f;font-family:Consolas,monospace;line-height:1.9;color:#c8d5e9}
.update-doc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:28px}.update-doc{border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.035);padding:22px;position:relative;overflow:hidden}.update-doc:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent,rgba(156,255,40,.07),transparent);transform:translateX(-120%);transition:.8s}.update-doc:hover:before{transform:translateX(120%)}.update-doc-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.update-doc h3,.update-doc p,.update-doc details,.update-doc .filters{position:relative}.update-doc h3{margin:0 0 10px}.update-doc summary{cursor:pointer;color:var(--green);font-weight:900;margin:14px 0}.doc-body{border-top:1px solid var(--line);margin-top:12px;padding-top:14px;color:#cbd7ea;line-height:1.8;max-height:420px;overflow:auto}.status.published{color:var(--green);border-color:var(--line2);background:rgba(156,255,40,.08)}.status.draft{color:#80c8ff;border-color:rgba(80,180,255,.36);background:rgba(80,180,255,.08)}.admin-edit-only{display:none}.admin-visible .admin-edit-only{display:block}.devnote-grid .update-doc:first-child{grid-column:span 2;border-color:rgba(156,255,40,.32);background:linear-gradient(180deg,rgba(156,255,40,.07),rgba(255,255,255,.025))}#updateDocForm textarea{width:100%}@keyframes sheenFlow{0%,60%{transform:translateX(-120%)}100%{transform:translateX(120%)}}@media(max-width:1100px){.update-doc-grid{grid-template-columns:1fr}.devnote-grid .update-doc:first-child{grid-column:span 1}}