/* ==========================================================================
   nlift-lite — responsive, desktop-first web landing + diagnosis flow
   Brand tokens inherited from assets/nlift-intro.html (colors NOT changed).
   Modern SaaS feel (Obviously AI / Akkio): full-bleed sections, content 1080–1200px.
   ========================================================================== */
:root{
  /* brand palette — DO NOT change */
  --accent:#4f46e5; --accent2:#7c5cff; --accent3:#9b6bff; --accentsoft:#eef0ff;
  --grad:linear-gradient(135deg,#4f46e5 0%,#7c5cff 55%,#9b6bff 100%);
  --grad-glow:#a99bff;
  --ink:#0c0f16; --ink2:#1a2130; --muted:#5b6577; --faint:#8a93a3;
  --bg:#ecece6; --card:#ffffff; --soft:#f5f5f0; --line:#e7e7e0; --hair:#efefe9;
  --ok:#0f9d63; --ok-soft:#e7f6ee; --warn:#b4432e; --warn-soft:#fbecea; --amber:#d97706;

  --r-sm:8px; --r-md:13px; --r-lg:16px; --r-xl:20px; --r-pill:999px;
  --shadow:0 1px 3px rgba(12,15,22,.07);
  --shadow-soft:0 2px 10px rgba(12,15,22,.06);
  --shadow-card:0 10px 40px rgba(12,15,22,.10);
  --shadow-lift:0 20px 60px rgba(30,20,90,.18);

  --font:"Pretendard","Apple SD Gothic Neo","Inter","Malgun Gothic",sans-serif;
  --fs-body:16px; --ls-tight:-.025em; --ls-body:-.01em;

  /* content widths */
  --w-content:1160px; --w-narrow:960px; --w-form:520px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--soft);color:var(--ink);font-family:var(--font);
  font-size:var(--fs-body);line-height:1.6;letter-spacing:var(--ls-body);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh;
}
h1,h2,h3{letter-spacing:var(--ls-tight);line-height:1.16;font-weight:800;margin:0}
p{margin:0}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;
  background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
.hidden{display:none !important}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.faint{color:var(--faint)} .muted{color:var(--muted)} .small{font-size:13.5px}
.strike{text-decoration:line-through;color:var(--faint)}
.mt8{margin-top:8px}.mt16{margin-top:16px}.mt24{margin-top:24px}.mt32{margin-top:32px}

/* ---------- full-bleed section model ---------- */
.section{width:100%;padding:76px 24px}
.section > .inner{max-width:var(--w-content);margin:0 auto}
.section.narrow > .inner{max-width:var(--w-narrow)}
.section--soft{background:var(--soft)}
.section--card{background:#fff}
.section--dark{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.section--dark::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(900px 460px at 82% -10%,rgba(124,92,255,.28),transparent 62%)}
.section--dark .inner{position:relative}

/* ---------- brand + 3-bar logo ---------- */
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:19px;letter-spacing:-.03em}
.bars{display:inline-flex;align-items:flex-end;gap:2.5px;height:18px}
.bars i{width:3.5px;border-radius:2px;background:var(--grad);display:block}
.bars i:nth-child(1){height:8px}.bars i:nth-child(2){height:12px}.bars i:nth-child(3){height:18px}
.section--dark .brand{color:#fff}

/* ---------- top navigation bar ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);
  background:rgba(255,255,255,.78);border-bottom:1px solid var(--hair)}
.nav .inner{max-width:var(--w-content);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav .navlinks{display:flex;align-items:center;gap:22px}
.nav .navlinks a{color:var(--muted);font-size:14px;font-weight:600}
.nav .navlinks a:hover{color:var(--ink);text-decoration:none}
.nav-cta{background:var(--grad);color:#fff !important;padding:9px 18px;border-radius:var(--r-pill);
  font-weight:700;font-size:14px;box-shadow:var(--shadow-soft)}
.nav-cta:hover{text-decoration:none;filter:brightness(1.05)}

/* language toggle (top-right) */
.lang{display:inline-flex;border:1px solid var(--line);border-radius:var(--r-pill);
  overflow:hidden;background:#fff}
.lang button{border:0;background:transparent;font-family:inherit;font-size:12.5px;font-weight:700;
  color:var(--muted);padding:6px 12px;cursor:pointer;letter-spacing:.02em}
.lang button[aria-pressed="true"]{background:var(--ink);color:#fff}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-weight:700;font-size:15px;border-radius:var(--r-md);
  padding:13px 24px;cursor:pointer;border:1px solid transparent;transition:filter .15s,transform .05s,box-shadow .15s;
  text-decoration:none;line-height:1.1}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.6;cursor:default}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(79,70,229,.28)}
.btn-primary:hover{filter:brightness(1.06);text-decoration:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
.btn-onDark{background:#fff;color:var(--ink)}
.btn-onDark:hover{filter:brightness(.96);text-decoration:none}
.btn-ghost-onDark{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.25)}
.btn-ghost-onDark:hover{background:rgba(255,255,255,.12);text-decoration:none}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-block{width:100%}

/* ---------- HERO (2-col: copy left, upload/demo right) ---------- */
.hero{padding:0 24px}
.hero .inner{max-width:var(--w-content);margin:0 auto;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:96px 0 88px}
.hero h1{font-size:clamp(32px,3.4vw,50px);letter-spacing:-.03em;line-height:1.08;
  text-wrap:balance;word-break:keep-all;overflow-wrap:break-word}
.hero h1 .nw{white-space:nowrap}
.hero h1 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent}
.hero .sub{margin-top:22px;font-size:19px;color:#c8cddb;max-width:34ch;line-height:1.6}
.hero .hero-cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{margin-top:28px;display:flex;gap:10px;flex-wrap:wrap}
.hero .trust span{font-size:12.5px;color:#aab2c4;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);border-radius:var(--r-pill);padding:5px 13px;
  display:inline-flex;align-items:center;gap:6px}
.hero .trust span::before{content:"";width:6px;height:6px;border-radius:50%;
  background:var(--grad-glow);box-shadow:0 0 8px var(--grad-glow)}

/* hero right — upload panel */
.hero-panel{background:#fff;border-radius:var(--r-xl);padding:30px;box-shadow:var(--shadow-lift);
  color:var(--ink)}
.hero-panel .panel-eyebrow{font-size:12px;font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent)}
.hero-panel h3{font-size:21px;margin-top:8px}
.hero-panel .panel-sub{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.55}
.hero-panel .panel-actions{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.hero-panel .panel-foot{margin-top:16px;font-size:12.5px;color:var(--faint);line-height:1.55}

/* ---------- trust / security band ---------- */
.trustband{background:var(--ink);color:#fff}
.trustband .inner{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
  max-width:var(--w-content);margin:0 auto;padding:40px 24px}
.trustband .ti b{display:block;font-size:15px;font-weight:800;letter-spacing:-.01em}
.trustband .ti span{display:block;font-size:13px;color:#9aa2b3;margin-top:4px;line-height:1.5}
.trustband .ti .badge-dot{color:var(--grad-glow);margin-right:6px;font-weight:900}

/* ---------- section heading ---------- */
.shead{text-align:center;max-width:720px;margin:0 auto 44px}
.shead h2{font-size:clamp(26px,3vw,38px);letter-spacing:-.03em}
.shead p{margin-top:14px;font-size:17px;color:var(--muted);line-height:1.6}

/* ---------- how-it-works grid (3–4 up) ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;
  box-shadow:var(--shadow-soft)}
.step .num{width:38px;height:38px;border-radius:11px;background:var(--accentsoft);color:var(--accent);
  display:grid;place-items:center;font-weight:800;font-size:16px}
.step b{display:block;font-size:17px;font-weight:800;margin-top:16px}
.step p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.55}

/* ---------- generic card + banners ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-card)}
.card + .card{margin-top:20px}
.banner{border-radius:var(--r-md);padding:14px 16px;font-size:14px;line-height:1.55}
.banner.info{background:var(--accentsoft);border:1px solid #dfe1ff;color:#3b3a66}
.banner.warn{background:var(--warn-soft);border:1px solid #f0cfc8;color:#8a3423}
.banner.ok{background:var(--ok-soft);border:1px solid #bfe5cf;color:#0c6b45}
.chip{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:700;
  color:var(--accent);background:var(--accentsoft);border:1px solid #dfe1ff;
  border-radius:var(--r-pill);padding:3px 10px}
.callout{background:var(--accentsoft);border:1px solid #dfe1ff;border-radius:var(--r-md);
  padding:16px 18px;font-size:14.5px;color:#3b3a66;line-height:1.6}
.callout b{color:var(--accent)}

/* ---------- form fields ---------- */
.fld{display:block;font-size:13.5px;font-weight:700;color:var(--ink2);margin-bottom:8px}
select,input[type="email"],input[type="text"]{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  border:1px solid var(--line);border-radius:var(--r-md);padding:12px 14px;background:#fff}
select:focus,input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,70,229,.14)}
.help{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.55}
label.check{display:flex;gap:9px;align-items:flex-start;cursor:pointer;line-height:1.5}
label.check input{margin-top:3px;width:auto}
.check-required{color:var(--ink2);font-weight:600}
.check-hero{background:var(--accentsoft);border:1px solid var(--accent);border-radius:var(--r-md);padding:12px 14px;color:var(--ink2)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- dropzone ---------- */
.dropzone{border:2px dashed #cfd2f0;border-radius:var(--r-lg);padding:30px 20px;text-align:center;
  cursor:pointer;background:var(--soft);transition:border-color .15s,background .15s}
.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:var(--accentsoft)}
.dropzone .ic{width:44px;height:44px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:22px;margin:0 auto 12px;font-weight:700}
.dropzone .dz-title{font-weight:700;font-size:15px}
.dropzone .hint{font-size:12.5px;color:var(--faint);margin-top:6px}

/* ---------- progress ---------- */
.progress{height:8px;border-radius:var(--r-pill);background:var(--line);overflow:hidden}
.progress .fill{height:100%;background:var(--grad);width:0;transition:width .3s}
.progress .fill.indeterminate{width:40% !important;animation:slide 1.1s ease-in-out infinite;border-radius:var(--r-pill)}
@keyframes slide{0%{margin-left:-40%}100%{margin-left:100%}}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px}

/* pipeline steps during diagnosis */
.pipe{list-style:none;padding:0;margin:0;max-width:380px;margin-left:auto;margin-right:auto;text-align:left}
.pipe li{display:flex;align-items:center;gap:12px;padding:10px 0;font-size:14.5px;color:var(--muted)}
.pipe li .mk{width:24px;height:24px;border-radius:50%;border:2px solid var(--line);
  display:grid;place-items:center;font-size:12px;font-weight:700;flex:none;color:var(--faint)}
.pipe li.run .mk{border-color:var(--accent);border-top-color:transparent;animation:spin .8s linear infinite}
.pipe li.done{color:var(--ink)}
.pipe li.done .mk{border-color:var(--ok);background:var(--ok);color:#fff;animation:none}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.pipe li.run .mk{animation:none}.progress .fill.indeterminate{animation:none;width:100% !important}}

/* ---------- stepper ---------- */
.stepper-wrap{background:#fff;border-bottom:1px solid var(--hair)}
.stepper{max-width:var(--w-narrow);margin:0 auto;padding:16px 24px;display:flex;align-items:center;gap:8px}
.stepper .dot{width:30px;height:30px;border-radius:50%;border:2px solid var(--line);color:var(--faint);
  display:grid;place-items:center;font-size:13px;font-weight:800;flex:none}
.stepper .dot.active{border-color:var(--accent);color:var(--accent);background:var(--accentsoft)}
.stepper .dot.done{border-color:var(--ok);background:var(--ok);color:#fff}
.stepper .bar{flex:1;height:2px;background:var(--line);border-radius:2px}
.stepper .bar.done{background:var(--ok)}
.stepper .lbl{font-size:12px;color:var(--faint);margin-left:6px;font-weight:600}
.stepper .dot.active + .lbl,.stepper .dot.done + .lbl{color:var(--ink2)}
@media (max-width:640px){.stepper .lbl{display:none}}

/* ---------- results (wide 2-col: metrics left, factors/list right) ---------- */
.result-head{text-align:center;margin-bottom:32px}
.result-head .eyebrow{display:block}
.result-head h2{font-size:clamp(24px,2.6vw,34px);margin-top:10px}
.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
/* grid 아이템은 기본 min-width:auto라 내부 넓은 미리보기표(min-width:520px)가 트랙을 밀어
   페이지 전체가 가로로 넘친다(특히 390px에서 two-col이 1열로 접힐 때). min-width:0을 줘야
   트랙이 뷰포트 폭까지 줄고, 넓은 표는 .tbl-scroll 내부에서만 가로 스크롤된다. */
.result-grid > *{min-width:0}

.auc-wrap{display:flex;gap:22px;align-items:center}
.auc-ring{width:118px;height:118px;border-radius:50%;display:grid;place-items:center;flex:none;
  background:conic-gradient(var(--accent) 0deg,var(--line) 0);position:relative}
.auc-ring::after{content:"";position:absolute;inset:11px;border-radius:50%;background:#fff}
.auc-ring b{position:relative;z-index:1;font-size:30px;font-weight:800;letter-spacing:-.02em}
.auc-verdict{font-weight:800;font-size:18px;line-height:1.4}
.auc-verdict.good{color:var(--ok)}.auc-verdict.warn{color:var(--amber)}
.auc-title{font-weight:700;font-size:13px;color:var(--muted);margin-top:8px}
.auc-base{font-size:12.5px;color:var(--faint);margin-top:4px;line-height:1.5}

.bignum{font-size:52px;font-weight:800;letter-spacing:-.03em;line-height:1;display:inline-block}
.metric-row{display:flex;gap:28px;flex-wrap:wrap;margin-top:8px}
.metric-row .m b{display:block;font-size:32px;font-weight:800;letter-spacing:-.02em}
.metric-row .m span{font-size:13px;color:var(--muted)}

/* factor bars */
.factor{margin-bottom:14px}
.factor .lbl{display:flex;justify-content:space-between;font-size:14px;font-weight:600;margin-bottom:6px}
.factor .track{height:12px;border-radius:var(--r-pill);background:var(--soft);overflow:hidden}
.factor .fill{height:100%;background:var(--grad);border-radius:var(--r-pill)}

/* preview table */
.tbl-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md)}
table.tbl{border-collapse:collapse;width:100%;font-size:13px;min-width:520px}
table.tbl th,table.tbl td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--hair);white-space:nowrap}
table.tbl thead th{background:var(--soft);font-weight:700;color:var(--ink2);position:sticky;top:0}
table.tbl tbody tr:last-child td{border-bottom:none}

/* ---------- final managed CTA band ---------- */
.cta-final{background:var(--ink);color:#fff;border-radius:var(--r-xl);padding:52px 44px;
  position:relative;overflow:hidden}
.cta-final::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px 300px at 10% 120%,rgba(124,92,255,.34),transparent 60%)}
.cta-final .inner2{position:relative;max-width:760px;margin:0 auto;text-align:center}
.cta-final h2{font-size:clamp(24px,2.6vw,34px)}
.cta-final h2 .g{background:linear-gradient(135deg,#a99bff,#c9b6ff);-webkit-background-clip:text;
  background-clip:text;-webkit-text-fill-color:transparent}
.cta-final .sub{color:#b6bccb;font-size:16px;margin-top:14px;line-height:1.6}
.cta-what{list-style:none;padding:0;margin:24px auto 0;max-width:560px;text-align:left;display:grid;gap:10px}
.cta-what li{font-size:14.5px;color:#c8cddb;padding-left:26px;position:relative;line-height:1.5}
.cta-what li::before{content:"→";position:absolute;left:0;color:var(--grad-glow);font-weight:800}
.cta-final .cta{margin-top:28px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-final a{color:#fff}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:#8790a2;padding:40px 24px}
.footer .inner{max-width:var(--w-content);margin:0 auto;display:flex;
  align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer a{color:#c8cddb}
.footer .fnote{font-size:13px;max-width:60ch;text-align:right;line-height:1.6}

/* app screen (upload/map/progress/result live inside one page container) */
.app{max-width:var(--w-narrow);margin:0 auto;padding:44px 24px 88px}
.app.result{max-width:var(--w-content)}
.stack{display:flex;flex-direction:column;gap:20px}
.center{text-align:center}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
/* 매핑 화면: 미리보기표가 든 카드가 페이지를 밀어내지 않도록 grid 아이템 min-width 해제.
   넓은 표는 .tbl-scroll 내부에서만 가로 스크롤. (390px 오버플로 근본해결, 1440 회귀 없음) */
.two-col > .card{min-width:0}

/* Managed-service teaser (result page funnel) */
.managed-teaser{border:1px solid var(--line)}
.managed-teaser .mgd-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.managed-teaser .mgd-grid > *{min-width:0}
.mgd-item{background:var(--soft);border:1px solid var(--hair);border-radius:var(--r-md);padding:16px 16px 14px}
.mgd-item .mgd-h{font-size:15px;font-weight:800;color:var(--ink);position:relative;padding-left:16px}
.mgd-item .mgd-h::before{content:"";position:absolute;left:0;top:6px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--accent),var(--accent2))}
.mgd-item p{margin-top:8px;line-height:1.5}
.managed-teaser .mgd-safe{margin-top:6px;padding-top:12px;border-top:1px dashed var(--hair);color:var(--muted)}
.managed-teaser .mgd-safe b{color:var(--ink)}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   Desktop-first: base styles target >=1024px. Below, columns collapse.
   ========================================================================== */

/* Large tablet / small laptop */
@media (max-width:1024px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .trustband .inner{grid-template-columns:repeat(2,1fr);row-gap:22px}
  .hero .inner{gap:40px}
}

/* Tablet — hero + result stack to single column */
@media (max-width:860px){
  .hero .inner{grid-template-columns:1fr;padding:64px 0 56px;gap:36px}
  .hero .sub{max-width:none}
  .hero-panel{max-width:520px}
  .result-grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .managed-teaser .mgd-grid{grid-template-columns:repeat(2,1fr)}
  .nav .navlinks a:not(.nav-cta){display:none}   /* keep security + CTA */
  .section{padding:56px 20px}
}

/* Phone */
@media (max-width:560px){
  :root{--fs-body:15.5px}
  .section{padding:44px 18px}
  .steps{grid-template-columns:1fr}
  .managed-teaser .mgd-grid{grid-template-columns:1fr}
  .trustband .inner{grid-template-columns:1fr;padding:32px 18px}
  .hero{padding:0 18px}
  .hero .hero-cta .btn{width:100%}
  .card{padding:20px}
  .cta-final{padding:36px 22px}
  .cta-final .cta .btn{width:100%}
  .footer .inner{flex-direction:column;align-items:flex-start}
  .footer .fnote{text-align:left}
  .app{padding:28px 16px 64px}
  .auc-wrap{flex-direction:column;align-items:flex-start;text-align:left}
  .nav-cta{display:none}
  .bignum{font-size:44px}
}