/* =========================================================
   SnapFit Landing Page — built on SnapReview Design System
   Family look: white surfaces, #2699FB accents, #1664A9 CTAs,
   Pretendard, 8–16px radii, subtle shadows, #F7FBFF tints.
   ========================================================= */

:root {
  --maxw: 1200px;
  --gutter: 40px;
  --sec-pad: 120px;
  --navy: var(--color-secondary-500);
  --navy-deep: #2A3445;
  --ink: var(--color-gray-900);
}

html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-family: var(--font-family-base);
  word-break: keep-all;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* ---------------- Layout primitives ---------------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--sec-pad) 0; position: relative; }
.section--tint { background: var(--bg-brand-tint); }
.section--gray { background: var(--color-gray-50); }
.section--navy { background: var(--navy-deep); color: #fff; }

/* ---------------- Section header kit ---------------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--color-primary-500);
  margin: 0 0 18px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; border-radius: 2px; }
.eyebrow--center { justify-content: center; }
.sec-head { max-width: 760px; }
.sec-head--center { margin: 0 auto; text-align: center; }
.sec-title {
  font-size: 40px; font-weight: 700; line-height: 1.32;
  letter-spacing: var(--letter-spacing-tight); color: var(--ink); margin: 0;
}
.section--navy .sec-title { color: #fff; }
.sec-sub {
  font-size: 18px; line-height: 1.6; color: var(--text-tertiary);
  margin: 18px 0 0; max-width: 620px;
}
.sec-head--center .sec-sub { margin-left: auto; margin-right: auto; }
.section--navy .sec-sub { color: rgba(255,255,255,0.72); }

.emph { color: var(--color-primary-600); }
.section--navy .emph { color: #6FB8FF; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 52px; min-height: 0; padding: 0 26px; border-radius: var(--radius-2);
  font-size: 16px; font-weight: 600; letter-spacing: var(--letter-spacing-default);
  border: 1px solid transparent; cursor: pointer; transition: background .15s, border-color .15s, color .15s, transform .15s;
  white-space: nowrap;
}
.btn i { font-size: 19px; }
.btn-primary { background: var(--color-primary-700); color: #fff; }
.btn-primary:hover { background: var(--color-primary-600); }
.btn-primary:active { background: var(--interactive-pressed); }
.btn-ghost { background: #fff; color: var(--text-secondary); border-color: var(--border-default); }
.btn-ghost:hover { background: var(--color-gray-50); border-color: var(--border-strong); }
.btn-on-navy { background: #fff; color: var(--navy-deep); }
.btn-on-navy:hover { background: #EAF3FF; }
.btn-lg { height: 58px; font-size: 17px; padding: 0 32px; }
.btn-sm { height: 42px; font-size: 14px; padding: 0 18px; }

/* ---------------- Pills / badges ---------------- */
.pill {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  height: 30px; padding: 0 12px; border-radius: var(--radius-full);
  font-size: 13px; font-weight: 600; letter-spacing: var(--letter-spacing-default);
}
.pill-brand { background: var(--color-primary-100); color: var(--color-primary-700); }
.pill-soft { background: var(--color-gray-100); color: var(--text-tertiary); }
.pill-soon { background: var(--color-yellow-100); color: #9A6A00; }
.badge-soon {
  display: inline-flex; align-items: center; height: 22px; padding: 0 8px;
  border-radius: var(--radius-1); font-size: 11px; font-weight: 700; letter-spacing: 0.02em;
  background: var(--color-yellow-100); color: #9A6A00;
}

/* ---------------- Nav ---------------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.86); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-default);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; white-space: nowrap; }
.brand .mark { width: 28px; height: 28px; color: var(--color-primary-500); }
.brand .mark svg { width: 100%; height: 100%; }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--text-tertiary); white-space: nowrap; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-burger { display: none; background: none; border: none; font-size: 26px; color: var(--ink); cursor: pointer; }

/* ---------------- HERO (S1) ---------------- */
.hero { padding: 86px 0 110px; background:
  radial-gradient(1200px 520px at 78% -8%, rgba(38,153,251,0.10), transparent 60%),
  linear-gradient(180deg, #F7FBFF 0%, #FFFFFF 62%); }
.hero-grid { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 64px; align-items: center; }
.hero-copy { text-align: left; }
.hero-h1 { font-size: 54px; line-height: 1.22; font-weight: 700; letter-spacing: -0.035em; color: var(--ink); margin: 22px 0 0; text-align: left;}
.hero-h1 .hl { color: var(--color-primary-600); }
.hero-sub { font-size: 19px; line-height: 1.62; color: var(--text-tertiary); margin: 24px 0 0; max-width: 520px; text-align: left;}
.hero-actions { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.hero-trust { display: flex; align-items: center; gap: 18px; margin-top: 28px; color: var(--text-subtle); font-size: 14px; flex-wrap: wrap; }
.hero-trust .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--color-gray-300); }
.hero-visual { position: relative; }

/* floating callout chips around hero widget */
.float-chip {
  position: absolute; display: inline-flex; align-items: center; gap: 7px;
  background: #fff; border: 1px solid var(--border-default); box-shadow: var(--shadow-xl);
  border-radius: var(--radius-full); padding: 9px 15px; font-size: 13px; font-weight: 600; color: var(--ink);
  z-index: 3;
}
.float-chip i { color: var(--color-primary-500); font-size: 16px; }
.float-chip.fc-1 { top: -18px; left: -26px; }
.float-chip.fc-2 { bottom: 28px; right: -30px; }

/* ---------------- Embedded-widget mockup chrome ---------------- */
.device {
  background: #fff; border: 1px solid var(--border-default); border-radius: var(--radius-4);
  box-shadow: 0 24px 60px -28px rgba(20,40,80,0.30), var(--shadow-md); overflow: hidden;
}
.device-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--border-default); background: var(--color-gray-50); }
.device-bar .d-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-gray-300); }
.device-url { margin-left: 10px; flex: 1; height: 24px; border-radius: var(--radius-full); background: #fff; border: 1px solid var(--border-default);
  display: flex; align-items: center; gap: 6px; padding: 0 12px; font-size: 11px; color: var(--text-subtle); }
.device-url i { font-size: 12px; }

/* The integrated SnapFit widget */
.sf-widget { background: #fff; }
.sf-wbar {
  display: flex; align-items: center; gap: 10px; padding: 14px 18px;
  background: var(--navy-deep); color: #fff;
}
.sf-wbar .wb-ico { width: 26px; height: 26px; display: grid; place-items: center; color: #fff; font-size: 20px; }
.sf-wbar .wb-t { font-size: 15px; font-weight: 700; letter-spacing: -0.01em; white-space: nowrap; }
.sf-wbar .wb-s { font-size: 12px; color: rgba(255,255,255,0.6); margin-left: auto; white-space: nowrap; flex: 0 0 auto; padding-left: 10px; }
.sf-body { padding: 20px 18px; }
.sf-body--stack { display: flex; flex-direction: column; gap: 10px; }
.sf-eyelabel { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; color: var(--color-gray-500); text-transform: uppercase; }

/* S3 통합 위젯 mockup — 항목 타일 (1개 expanded + 3개 collapsed) */
.sf-tile {
  display: flex; align-items: center; gap: 9px;
  padding: 11px 13px;
  border: 1px solid var(--border-default);
  border-radius: 8px;
}
.sf-tile--open {
  display: block;
  border: 1px solid var(--color-primary-100);
  border-radius: 8px;
  overflow: hidden;
  padding: 0;
}
.sf-tile__head {
  display: flex; align-items: center; gap: 9px;
  padding: 11px 13px;
}
.sf-tile--open > .sf-tile__head {
  background: var(--color-primary-50);
}
.sf-tile__icon { color: var(--color-primary-500); font-size: 19px; }
.sf-tile__label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.sf-tile__caret { margin-left: auto; color: var(--text-subtle); font-size: 14px; }
.sf-tile__body { padding: 2px 13px 10px; }
.sf-tile__body .sf-table { font-size: 12px; margin-top: 0; }

/* size-info diagram + table */
.sf-tabs { display: inline-flex; padding: 4px; background: var(--color-gray-100); border-radius: var(--radius-2); gap: 4px; }
.sf-tab { border: none; background: transparent; height: 34px; padding: 0 16px; border-radius: 6px; font-size: 13px; font-weight: 600; color: var(--text-subtle); cursor: pointer; }
.sf-tab.is-on { background: #fff; color: var(--ink); box-shadow: var(--shadow-sm); }

.sf-table { width: 100%; border-collapse: collapse; margin-top: 14px; font-size: 13px; }
.sf-table th { text-align: center; font-weight: 600; color: var(--text-subtle); padding: 10px 6px; border-bottom: 1px solid var(--border-default); font-size: 12px; }
.sf-table th:first-child, .sf-table td:first-child { text-align: left; color: var(--text-tertiary); font-weight: 600; }
.sf-table td { text-align: center; padding: 11px 6px; border-bottom: 1px solid var(--color-gray-100); color: var(--ink); font-weight: 600; }
.sf-table tr:last-child td { border-bottom: none; }

.diff { display: inline-flex; align-items: center; gap: 2px; font-size: 11px; font-weight: 700; margin-top: 2px; }
.diff.up { color: var(--color-danger-500); }
.diff.down { color: var(--color-primary-500); }

/* ---------------- Generic cards ---------------- */
.grid { display: grid; gap: 24px; }
.cols-2 { grid-template-columns: repeat(2,1fr); }
.cols-3 { grid-template-columns: repeat(3,1fr); }
.cols-4 { grid-template-columns: repeat(4,1fr); }

.card {
  background: #fff; border: 1px solid var(--border-default); border-radius: var(--radius-4);
  padding: 30px; box-shadow: var(--shadow-sm);
}
.card-ico {
  width: 52px; height: 52px; border-radius: var(--radius-3); display: grid; place-items: center;
  background: var(--color-primary-50); color: var(--color-primary-500); font-size: 26px; margin-bottom: 20px;
}
.card-ico.warn { background: var(--color-orange-100); color: var(--color-orange-500); }
.card-ico.danger { background: var(--color-danger-50); color: var(--color-danger-500); }
.card-ico.green { background: var(--color-progress-50); color: var(--color-progress-500); }
.card h3 { font-size: 19px; font-weight: 700; color: var(--ink); margin: 0 0 10px; letter-spacing: -0.01em; }
.card p { font-size: 15px; line-height: 1.62; color: var(--text-tertiary); margin: 0; }

/* loss-flow diagram (S2) */
.flow { display: flex; align-items: stretch; gap: 0; margin-top: 56px; flex-wrap: wrap; }
.flow-step { flex: 1; min-width: 150px; background: #fff; border: 1px solid var(--border-default); border-radius: var(--radius-3); padding: 22px 20px; position: relative; }
.flow-step .fs-k { font-size: 13px; font-weight: 700; color: var(--color-danger-500); }
.flow-step .fs-t { font-size: 15px; font-weight: 600; color: var(--ink); margin-top: 6px; }
.flow-step .fs-d { font-size: 13px; color: var(--text-subtle); margin-top: 4px; line-height: 1.5; }
.flow-arrow { display: grid; place-items: center; width: 40px; color: var(--color-gray-400); font-size: 22px; flex: 0 0 auto; }

/* callout list (S3) */
.callout-grid { display: grid; grid-template-columns: 1fr 1.15fr 1fr; gap: 28px; align-items: center; margin-top: 64px; }
.callout-col { display: flex; flex-direction: column; gap: 22px; }
.callout-col.right { text-align: left; }
.callout {
  background: #fff; border: 1px solid var(--border-default); border-radius: var(--radius-3);
  padding: 18px 20px; box-shadow: var(--shadow-sm); position: relative;
}
.callout .co-h { display: flex; align-items: center; gap: 9px; font-size: 15px; font-weight: 700; color: var(--ink); }
.callout .co-h i { color: var(--color-primary-500); font-size: 19px; }
.callout p { font-size: 13.5px; color: var(--text-tertiary); margin: 8px 0 0; line-height: 1.55; }
.callout .co-num { position: absolute; top: -10px; left: -10px; width: 26px; height: 26px; border-radius: 50%; background: var(--color-primary-700); color: #fff; font-size: 13px; font-weight: 700; display: grid; place-items: center; }

/* feature split rows (S4/S6/S7) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split.rev .split-media { order: -1; }
.feat-list { margin: 26px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 16px; }
.feat-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; color: var(--text-tertiary); line-height: 1.55; }
.feat-list li i { color: var(--color-primary-500); font-size: 20px; margin-top: 1px; flex: 0 0 auto; }
.feat-list li b { color: var(--ink); font-weight: 600; }

/* admin mock (S4) */
.admin-mock { background: #fff; }
.admin-top { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-bottom: 1px solid var(--border-default); }
.admin-top .at-t { font-size: 14px; font-weight: 700; color: var(--ink); }
.admin-top .at-pill { margin-left: auto; }
.admin-row { display: flex; gap: 10px; padding: 14px 16px; align-items: center; border-bottom: 1px solid var(--color-gray-100); }
.admin-field { flex: 1; }
.admin-field label { display: block; font-size: 11px; font-weight: 600; color: var(--text-subtle); margin-bottom: 5px; }
.admin-field .inp { height: 36px; border: 1px solid var(--border-default); border-radius: 6px; display: flex; align-items: center; padding: 0 10px; font-size: 13px; color: var(--ink); background: #fff; }
.admin-field .inp.muted { color: var(--text-subtle); }

/* dual output (S7) */
.dual { display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px; align-items: center; margin-top: 56px; }
.dual-bridge { display: flex; flex-direction: column; align-items: center; gap: 10px; color: rgba(255,255,255,0.6); }
.dual-bridge .db-ico { width: 56px; height: 56px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); display: grid; place-items: center; font-size: 26px; color: #6FB8FF; }
.dual-bridge .db-t { font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.chan-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-4); padding: 22px; }
.chan-head { display: flex; align-items: center; gap: 9px; margin-bottom: 16px; }
.chan-head .ch-t { font-size: 15px; font-weight: 700; color: #fff; white-space: nowrap; }
.chan-head .ch-tag { margin-left: auto; font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: var(--radius-full); background: rgba(111,184,255,0.16); color: #9CCBFF; }

/* recommend form (S6) */
.reco { background: #fff; }
.reco-form { display: flex; flex-direction: column; gap: 14px; }
.reco-field label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 7px; }
.reco-input { display: flex; align-items: center; height: 50px; border: 1px solid var(--border-default); border-radius: var(--radius-2); padding: 0 14px; background: #fff; }
.reco-input input { flex: 1; border: none; outline: none; font-size: 16px; font-family: inherit; color: var(--ink); background: transparent; }
.reco-input .unit { font-size: 14px; color: var(--text-subtle); font-weight: 600; }
.reco-result { margin-top: 6px; border: 1px solid var(--color-primary-100); background: var(--color-primary-50); border-radius: var(--radius-3); padding: 18px; }
.reco-result .rr-k { font-size: 13px; color: var(--text-tertiary); }
.reco-result .rr-size { font-size: 34px; font-weight: 700; color: var(--color-primary-700); letter-spacing: -0.02em; line-height: 1.1; margin-top: 2px; }
.reco-result .rr-meta { font-size: 13px; color: var(--text-subtle); margin-top: 8px; display: flex; align-items: center; gap: 6px; }
.reco-bar { height: 8px; border-radius: 999px; background: var(--color-gray-100); overflow: hidden; margin-top: 14px; }
.reco-bar > span { display: block; height: 100%; background: var(--color-primary-500); border-radius: 999px; }

/* KPI cards (S8) */
.kpi-card { text-align: left; }
.kpi-num { font-size: 44px; font-weight: 700; color: var(--color-primary-700); letter-spacing: -0.02em; line-height: 1; }
.kpi-num .ph-holder { color: var(--color-gray-400); }
.kpi-label { font-size: 15px; font-weight: 600; color: var(--ink); margin-top: 12px; }
.kpi-sub { font-size: 13px; color: var(--text-subtle); margin-top: 4px; }
.placeholder-note { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; font-size: 12px; font-weight: 600; color: var(--text-subtle); background: var(--color-gray-100); border-radius: var(--radius-1); padding: 3px 8px; margin-top: 10px; }

.logo-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 20px; margin-top: 40px; align-items: center; }
.logo-slot {
  height: 60px; display: grid; place-items: center; color: var(--color-gray-700);
  font-size: 21px; font-weight: 800; letter-spacing: -0.02em; opacity: 0.72; transition: opacity .15s;
  font-family: var(--font-family-base);
}
.logo-slot:hover { opacity: 1; }
.logo-slot .ac { color: var(--color-primary-600); }
.logo-slot .thin { font-weight: 500; }

/* steps (S9) */
.steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 56px; }
.step { padding: 0 22px; position: relative; }
.step:not(:last-child)::after { content: ""; position: absolute; top: 26px; right: -2px; width: 100%; border-top: 2px dashed var(--border-strong); transform: translateX(50%); z-index: 0; max-width: calc(100% - 52px); }
.step-n { width: 52px; height: 52px; border-radius: 50%; background: #fff; border: 2px solid var(--color-primary-500); color: var(--color-primary-700); font-size: 19px; font-weight: 700; display: grid; place-items: center; position: relative; z-index: 1; }
.step h4 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 20px 0 8px; }
.step p { font-size: 14px; color: var(--text-tertiary); line-height: 1.55; margin: 0; }

/* CTA (S10) */
.cta-card {
  background: linear-gradient(135deg, #1A2740 0%, #1664A9 100%);
  border-radius: var(--radius-5); padding: 72px 64px; text-align: center; color: #fff;
  position: relative; overflow: hidden;
}
.cta-card::after { content: ""; position: absolute; inset: 0; background: radial-gradient(600px 300px at 80% -20%, rgba(111,184,255,0.25), transparent 60%); pointer-events: none; }
.cta-card h2 { font-size: 42px; font-weight: 700; letter-spacing: -0.03em; margin: 0; position: relative; }
.cta-card p { font-size: 18px; color: rgba(255,255,255,0.78); margin: 18px 0 0; position: relative; }
.cta-actions { display: flex; gap: 14px; justify-content: center; margin-top: 36px; position: relative; flex-wrap: wrap; }
.chan-strip { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 40px; }
.chan-strip .cs-label { font-size: 13px; color: var(--text-subtle); }
.chan-chip { display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 14px; border-radius: var(--radius-full); border: 1px solid var(--border-default); background: #fff; font-size: 13px; font-weight: 600; color: var(--text-tertiary); }

/* footer */
.footer { border-top: 1px solid var(--border-default); padding: 48px 0 56px; background: #fff; }
.footer-inner { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer .brand { margin-bottom: 14px; }
.footer p { font-size: 13px; color: var(--text-subtle); line-height: 1.7; margin: 0; }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h5 { font-size: 13px; font-weight: 700; color: var(--ink); margin: 0 0 12px; }
.footer-col a { display: block; font-size: 13px; color: var(--text-tertiary); margin-bottom: 8px; }
.footer-col a:hover { color: var(--color-primary-600); }

/* reveal animation — only hides when JS marks <html class="js-anim"> so content is always visible without JS */.js-anim .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.js-anim .reveal.in { opacity: 1; transform: none; }
/* freeze-proof static reveal (used when document is hidden — transitions don't advance there) */
.js-anim .reveal.shown { opacity: 1 !important; transform: none !important; transition: none !important; }
@media (max-width: 0) { .js-anim .reveal { opacity: 1; transform: none; transition: none; } }

/* ===================================================================
   S4/S6/S7/S9/S10 component additions
   =================================================================== */
.sec-title--nowrap { white-space: normal; }
@media (min-width: 1080px) { .sec-title--nowrap { white-space: nowrap; } }

/* S4 — admin → auto-deploy vertical flow */
.deploy-flow { display: flex; flex-direction: column; align-items: stretch; gap: 0; }
.deploy-flow .device { width: 100%; }
.deploy-arrow { display: flex; justify-content: center; padding: 14px 0; }
.deploy-arrow span {
  display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 600;
  color: var(--color-primary-700); background: var(--color-primary-50); border: 1px solid var(--color-primary-100);
  padding: 7px 16px; border-radius: var(--radius-full);
}
.deploy-arrow i { font-size: 16px; }
.admin-field label { white-space: nowrap; }

/* S7 — exported single-image look */
.img-export { display: flex; flex-direction: column; align-items: stretch; padding: 6px 4px 10px; }
.ie-card {
  position: relative; background: #fff; border-radius: var(--radius-2); padding: 16px 16px 12px;
  width: 100%; transform: rotate(1.4deg);
  box-shadow: 0 18px 40px -16px rgba(0,0,0,0.55), 0 2px 0 rgba(255,255,255,0.06);
}
.ie-card .sf-table { margin-top: 6px; }
.ie-fold { position: absolute; top: 0; right: 0; width: 0; height: 0;
  border-width: 0 22px 22px 0; border-style: solid; border-color: transparent var(--color-gray-200) transparent transparent;
  border-radius: 0 var(--radius-2) 0 0; }
.ie-tag {
  display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 700;
  color: var(--color-primary-700); background: var(--color-primary-100); padding: 3px 9px; border-radius: var(--radius-1);
}
.ie-file {
  margin-top: 10px; display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600;
  color: var(--text-subtle); border-top: 1px dashed var(--border-default); padding-top: 9px;
}
.ie-file i { font-size: 14px; }

/* KPI unit */
.kpi-unit { font-size: 26px; font-weight: 700; margin-left: 1px; }

/* S9 — process cards + connectors */
.proc { display: flex; align-items: stretch; gap: 0; margin-top: 56px; }
.proc-step {
  flex: 1; background: #fff; border: 1px solid var(--border-default); border-radius: var(--radius-3);
  padding: 24px 22px; box-shadow: var(--shadow-sm);
}
.proc-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.proc-n { width: 40px; height: 40px; border-radius: 50%; background: var(--color-primary-700); color: #fff;
  font-size: 17px; font-weight: 700; display: grid; place-items: center; }
.proc-top i { font-size: 26px; color: var(--color-primary-500); }
.proc-step h4 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 0 0 8px; letter-spacing: -0.01em; }
.proc-step p { font-size: 14px; color: var(--text-tertiary); line-height: 1.55; margin: 0; }
.proc-arrow { display: grid; place-items: center; width: 36px; flex: 0 0 auto; color: var(--color-gray-400); font-size: 20px; }

/* S10 — closing contact (copy + form) */
.closing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.closing-copy .closing-points { list-style: none; margin: 28px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.closing-copy .closing-points li { display: flex; align-items: center; gap: 10px; font-size: 15.5px; color: rgba(255,255,255,0.82); }
.closing-copy .closing-points i { color: #6FB8FF; font-size: 20px; }
.closing-form {
  background: #fff; border-radius: var(--radius-4); padding: 30px; box-shadow: var(--shadow-xl);
  display: flex; flex-direction: column; gap: 16px;
}
.cfield { display: flex; flex-direction: column; gap: 7px; }
.cfield label { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.cfield input, .cfield textarea, .cselect select {
  width: 100%; border: 1px solid var(--border-default); border-radius: var(--radius-2);
  padding: 12px 14px; font-size: 15px; font-family: inherit; color: var(--ink); background: #fff; outline: none;
  letter-spacing: var(--letter-spacing-default); transition: border-color .15s;
}
.cfield input::placeholder, .cfield textarea::placeholder { color: var(--text-disabled); }
.cfield input:focus, .cfield textarea:focus, .cselect select:focus { border-color: var(--color-primary-500); }
.cfield textarea { resize: none; }
.cselect { position: relative; }
.cselect select { appearance: none; -webkit-appearance: none; cursor: pointer; padding-right: 38px; }
.cselect i { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--text-subtle); pointer-events: none; }
.form-note { font-size: 12px; color: var(--text-subtle); margin: 2px 0 0; text-align: center; }

/* S3 — dummy product page with embedded widget */
.shop-mock { background: #fff; padding-bottom: 16px; }
.shop-hero { height: 150px; background: var(--color-gray-100); display: grid; place-items: center; color: var(--text-disabled); font-size: 30px; margin: 16px 16px 0; border-radius: 8px; }
.shop-lines { padding: 14px 16px 0; display: flex; flex-direction: column; gap: 8px; }
.shop-lines .ln { height: 10px; border-radius: 4px; background: var(--color-gray-100); }
.shop-lines .ln.w70 { width: 70%; } .shop-lines .ln.w40 { width: 40%; }
.shop-lines .ln.price { width: 32%; height: 18px; background: var(--color-gray-200); margin-top: 4px; }
.shop-thumbs { display: flex; gap: 8px; padding: 14px 16px 0; }
.shop-thumbs span { width: 44px; height: 44px; border-radius: 6px; background: var(--color-gray-100); }
.shop-block { height: 64px; margin: 16px 16px 0; border-radius: 8px; background: var(--color-gray-100); }
.shop-block.sm { height: 40px; }
.shop-widget { margin: 18px 16px 0; border: 1px solid var(--color-primary-100); border-radius: 10px; overflow: hidden; box-shadow: 0 0 0 4px rgba(38,153,251,0.08); }
.auto-flag { display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--color-primary-700); background: var(--color-primary-50); padding: 8px 13px; }
.auto-flag i { font-size: 15px; }

/* S5 — comparison modal over dimmed dummy shop */
.modal-scene { position: relative; min-height: 440px; border-radius: var(--radius-4); overflow: hidden; border: 1px solid var(--border-default); box-shadow: var(--shadow-md); background: #fff; }
.ms-shop { position: absolute; inset: 0; padding: 18px; filter: blur(1.5px); }
.ms-shop .shop-hero { margin: 0; height: 150px; }
.ms-dim { position: absolute; inset: 0; background: rgba(15,23,42,0.52); }
.ms-modal { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: calc(100% - 56px); background: #fff; border-radius: var(--radius-3); box-shadow: var(--shadow-xl); overflow: hidden; }

/* S7 — image opened in an OS image viewer (macOS Preview style) */
.imgview { background: #fff; border-radius: 10px; overflow: hidden; border: 1px solid rgba(255,255,255,0.14);
  box-shadow: 0 22px 46px -18px rgba(0,0,0,0.6); }
.iv-bar { position: relative; display: flex; align-items: center; gap: 7px; padding: 10px 13px; background: #ECECEE; border-bottom: 1px solid #D6D6D9; }
.iv-light { width: 11px; height: 11px; border-radius: 50%; }
.iv-light.r { background: #FF5F57; } .iv-light.y { background: #FEBC2E; } .iv-light.g { background: #28C840; }
.iv-title { position: absolute; left: 50%; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 600; color: #6B6B6F; }
.iv-title i { font-size: 13px; }
.iv-canvas { background: #565E6E; padding: 26px 22px; display: grid; place-items: center; }
.iv-photo { background: #fff; border-radius: 4px; padding: 14px 16px; width: 100%; box-shadow: 0 8px 22px rgba(0,0,0,0.32); }
.iv-photo .sf-eyelabel { display: block; margin-bottom: 8px; }

/* S7 — image export to external channels */
.ie-export { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-top: 18px; }
.ie-export > i { color: #6FB8FF; font-size: 22px; }
.ie-channels { display: flex; gap: 12px; }
.ie-chan { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; color: #cfe3ff; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); }
.ie-note { font-size: 12.5px; font-weight: 600; color: rgba(255,255,255,0.62); }

/* S8 — MOCK tag */
.kpi-card { position: relative; }
.mock-tag { position: absolute; top: 14px; right: 14px; font-size: 10px; font-weight: 800; letter-spacing: 0.08em; color: var(--color-orange-500); background: var(--color-orange-100); border-radius: var(--radius-1); padding: 3px 7px; }

/* feat-list label — description (desktop: inline w/ dash; mobile: stacked 2 lines) */
.feat-list li .fd::before { content: " — "; }
.hero-trust .ht-item { display: inline-flex; align-items: center; gap: 7px; }
.hero-trust .ht-check { display: inline-flex; color: var(--color-progress-500); font-size: 17px; position: relative; top: 0.5px; }
.hero-trust .dot { display: none; }
.hero-trust { gap: 22px; }

/* S3 v1.1 — product-detail style mock */
.shop-mock--detail .shop-hero { height: 110px; }
.shop-info { padding: 14px 16px 0; display: flex; flex-direction: column; gap: 6px; }
.shop-name { font-size: 14.5px; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.shop-price { font-size: 18px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.shop-price span { font-size: 13px; font-weight: 600; margin-left: 1px; }
.shop-opts { display: flex; gap: 8px; margin-top: 2px; }
.shop-opts span { flex: 1; height: 30px; border: 1px solid var(--border-default); border-radius: 6px; display: flex; align-items: center; padding: 0 10px; font-size: 11.5px; color: var(--text-subtle); position: relative; }
.shop-opts span::after { content: "▾"; margin-left: auto; color: var(--text-disabled); font-size: 10px; }

/* S6 v1.1 — auto-play recommend demo */
.reco-auto .reco-result { opacity: 0; transform: translateY(10px); transition: opacity .45s cubic-bezier(.2,.7,.3,1), transform .45s cubic-bezier(.2,.7,.3,1); }
.reco-auto .reco-result.show { opacity: 1; transform: none; }
.reco-auto #reco-go { transition: transform .15s, background .15s; pointer-events: none; }
.reco-auto #reco-go.pressing { transform: scale(.96); background: var(--interactive-pressed); }
.reco-auto .reco-input { transition: border-color .2s, box-shadow .2s; }
.reco-auto .reco-input.typing { border-color: var(--color-primary-500); box-shadow: 0 0 0 3px rgba(38,153,251,0.12); }
.reco-auto .reco-input input { caret-color: transparent; pointer-events: none; }
.reco-note { font-size: 12px; color: var(--text-subtle); margin: 12px 0 0; line-height: 1.5; }

/* S2 — STEP 01–04 looping highlight (JS-driven: 1→4, pause, repeat) */
.flow-step { transition: border-color .4s, box-shadow .4s, background .4s; }
.flow-step.lit { border-color: var(--color-primary-500); box-shadow: 0 0 0 5px rgba(38,153,251,0.13); background: var(--color-primary-50); }
.flow-step.lit .fs-t { color: var(--color-primary-700); }
@media (max-width: 0) { .flow-step.lit { border-color: var(--border-default); box-shadow: none; background: #fff; } }

/* Size schematic (도식화) shown above size tables */

/* Size schematic (도식화) shown above size tables */
.size-diagram { display: flex; justify-content: center; padding: 4px 0 12px; }
.size-diagram svg { width: 152px; height: auto; }
.iv-photo .size-diagram { padding-top: 0; }
.shop-widget .size-diagram svg, .sf-widget .size-diagram svg { width: 138px; }

/* ===================================================================
   COMPONENT EXTRACTIONS  — 인라인 style → 클래스 분리
   각 섹션별 mockup 에서 반복되는 패턴을 클래스로 추출.
   =================================================================== */

/* S1 hero — size info eyelabel row + recommendation hint */
.sf-eyerow {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; margin-bottom: 6px;
}
.sf-hint {
  margin-top: 16px;
  padding: 14px;
  background: var(--color-primary-50);
  border-radius: var(--radius-2);
  display: flex; align-items: center; gap: 10px;
}
.sf-hint__ico { color: var(--color-primary-500); font-size: 24px; }
.sf-hint__text { font-size: 13px; color: var(--text-tertiary); line-height: 1.45; }
.sf-hint__text b { color: var(--ink); font-weight: 700; }
.sf-hint__text b.is-primary { color: var(--color-primary-700); }

/* S2 — problem cards spacing */
.p-cards { margin-top: 56px; }

/* S3 mobile — same product-detail skeleton + callouts (모바일 전용 트리;
   solution 페이지는 데스크탑 1열 스택으로 처리) */
.s3-mobile { display: none; margin-top: 40px; }
.s3-mobile .device { max-width: 420px; margin: 0 auto 28px; }
.s3-mobile__callouts { display: grid; gap: 12px; }
.s3-mobile__callouts .callout:first-child { padding-left: 20px; }

/* S4 admin mockup — last row + save button */
.admin-top__ico { color: var(--color-primary-500); font-size: 18px; }
.admin-row--last { border-bottom: none; align-items: flex-end; }
.admin-row__save { margin-left: auto; }
.admin-row__save .btn { height: 36px; padding: 0 18px; }

/* S5 comparison (desktop table + mobile cards) */
.sf-tabs--gap-b { margin-bottom: 12px; }
.sf-tabs--start { align-self: flex-start; }
.cmp-table__th { min-width: 120px; }
.cmp-cell { display: flex; align-items: center; gap: 8px; }
.cmp-cell__thumb {
  width: 34px; height: 34px;
  border-radius: 6px;
  background: var(--color-gray-100);
  display: grid; place-items: center;
  color: var(--text-disabled);
}
.cmp-cell__name { font-size: 12px; }
.cmp-table__note { margin-top: 10px; font-size: 12px; color: var(--text-subtle); }

/* S5 mobile — 비교 카드 스택 */
.s5-mobile { display: none; }
.s5-mobile .sf-body { display: flex; flex-direction: column; gap: 10px; }
.cmp-stack { display: flex; flex-direction: column; gap: 10px; }
.cmp-stack__note { font-size: 12.5px; color: var(--text-subtle); margin: 0 0 2px; }
.cmp-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px;
  border: 1px solid var(--border-default);
  border-radius: 10px;
}
.cmp-row__label { font-size: 13px; color: var(--text-tertiary); }
.cmp-row__value { font-size: 18px; font-weight: 700; color: var(--ink); }
.cmp-row__diff { font-size: 14px; }

/* S6 reco */
.eyebrow .badge-soon { margin-left: 6px; }
.reco-foot { margin-top: 18px; font-size: 12.5px; color: var(--text-subtle); }
.device--narrow { max-width: 440px; }
.reco-go { width: 100%; height: 50px; }
.rr-meta__ico { color: var(--color-primary-500); }
.rr-meta__pct { color: var(--ink); }

/* S7 — dual screens contrast + on-navy variants */
.s7-pill-wrap { text-align: center; margin-top: 64px; }
.pill--on-navy { background: rgba(111,184,255,0.14); color: #9CCBFF; }
.chan-head__ico { color: #6FB8FF; font-size: 22px; }
.device--on-navy { box-shadow: none; border: 1px solid rgba(255,255,255,0.1); }
.s7-caption {
  text-align: center;
  margin-top: 22px;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
}
.s7-cards { margin-top: 72px; }

/* navy 섹션의 .card 는 기본 .card 룰(흰 배경 + light border + primary 아이콘 +
   어두운 텍스트)을 그대로 유지하도록 override 하지 않음.
   대신 navy 배경 위의 대비를 위해 그림자만 강화. */
.section--navy .card { box-shadow: var(--shadow-xl); }

/* S8 — KPI grid spacing */
.kpi-grid { margin-top: 56px; }

/* S8 — KPI 숫자 카운트업 (너비 jitter 방지) */
.kpi-num__val { display: inline-block; font-variant-numeric: tabular-nums; }

/* S10 — closing on navy */
.section--navy .eyebrow { color: #6FB8FF; }
.btn--block { width: 100%; }

/* closing 섹션의 emph 만 다른 솔루션들 (snapskin/snapq/snapreview) 의
   .hero-accent 와 동일한 그라데이션 텍스트로 통일.
   S7 차별점 등 다른 navy emph 는 단색 #6FB8FF 유지. */
.section--navy.closing .emph {
  background: linear-gradient(90deg, #7CC0FF 0%, #2699FB 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* footer brand mark — 본문 nav 의 28px 대비 약간 작게 */
.footer .brand .mark { width: 24px; height: 24px; }

/* ===================================================================
   RESPONSIVE  — tablet
   =================================================================== */
@media (max-width: 1024px) {
  :root { --sec-pad: 88px; --gutter: 28px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 560px; }
  .hero-h1 { font-size: 46px; }
  .sec-title { font-size: 34px; }
  .split { gap: 44px; }
  .callout-grid { grid-template-columns: 1fr; gap: 18px; }
  .dual { grid-template-columns: 1fr; }
  .dual-bridge { flex-direction: row; }
  .dual-bridge .db-ico { transform: rotate(90deg); }
  .cols-4 { grid-template-columns: repeat(2,1fr); }
  .closing-grid { grid-template-columns: 1fr; gap: 44px; }
}

/* ===================================================================
   RESPONSIVE  — mobile
   =================================================================== */
@media (max-width: 680px) {
  :root { --sec-pad: 64px; --gutter: 20px; }
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-burger { display: block; }

  .hero { padding: 48px 0 64px; }
  .hero-h1 { font-size: 34px; line-height: 1.26; }
  .hero-sub { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .float-chip { display: none; }

  /* 모바일에서 솔루션 hero 우측 mockup/visual 숨김 — 카피만 노출.
     specificity 0,2,0 (.hero-visual.reveal) 로 lp.css 의 0,1,0 룰을 안전히 덮음. */
  .hero-visual.reveal { display: none; }

  .sec-title { font-size: 27px; }
  .sec-sub { font-size: 16px; }

  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  .grid { gap: 16px; }
  .card { padding: 24px; border-radius: var(--radius-3); }

  .split { grid-template-columns: 1fr; gap: 32px; }
  .split.rev .split-media { order: 0; }

  .flow { flex-direction: column; gap: 0; padding-left: 6px; margin-top: 40px; }
  .flow-arrow { display: none; }
  .flow-step { background: transparent; border: none; border-radius: 0; min-width: 0; padding: 0 0 26px 26px; position: relative; }
  .flow-step::before { content: ""; position: absolute; left: 0; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--color-primary-500); box-shadow: 0 0 0 4px var(--color-primary-50); }
  .flow-step::after { content: ""; position: absolute; left: 5px; top: 16px; bottom: -2px; width: 2px; background: var(--border-strong); }
  .flow-step:last-child { padding-bottom: 0; }
  /* mobile: lit = glowing timeline dot instead of card border */
  .flow-step.lit { background: transparent; box-shadow: none; border: none; }
  .flow-step.lit::before { box-shadow: 0 0 0 6px rgba(38,153,251,0.28); background: var(--color-primary-700); }
  .flow-step:last-child::after { display: none; }

  /* common: label — description bullets split to 2 lines */
  .feat-list li .fl { display: flex; flex-direction: column; gap: 3px; }
  .feat-list li .fd::before { content: none; }
  .feat-list li .fd { color: var(--text-subtle); }

  /* hero value props → vertical ✓ checklist */
  .hero-trust { flex-direction: column; align-items: flex-start; gap: 11px; }
  .hero-trust .dot { display: none; }
  .hero-trust .ht-item { display: flex; align-items: center; gap: 7px; }
  .hero-trust .ht-check { display: inline-flex; color: var(--color-progress-500); font-size: 17px; }

  /* problem cards → 2×2 grid */
  .p-cards { grid-template-columns: 1fr 1fr !important; gap: 12px; }
  .p-cards .card { padding: 18px 15px; }
  .p-cards .card h3 { font-size: 15.5px; }
  .p-cards .card p { font-size: 13px; }
  .p-cards .card-ico { width: 42px; height: 42px; font-size: 21px; margin-bottom: 13px; border-radius: var(--radius-2); }

  .steps { grid-template-columns: 1fr; gap: 28px; }
  .step { padding: 0; display: grid; grid-template-columns: 52px 1fr; column-gap: 16px; align-items: start; }
  .step:not(:last-child)::after { display: none; }
  .step h4 { margin-top: 4px; grid-column: 2; }
  .step p { grid-column: 2; }
  .step-n { grid-row: span 3; }

  .logo-grid { grid-template-columns: repeat(2,1fr); }

  .proc { flex-direction: column; }
  .proc-arrow { width: 100%; height: 26px; transform: rotate(90deg); }
  .closing-grid { grid-template-columns: 1fr; gap: 36px; }
  .closing-form { padding: 22px; }
  .ie-card { transform: none; }

  .s3-desktop, .s5-desktop { display: none !important; }
  .s3-mobile { display: block !important; }
  .s5-mobile { display: block !important; }

  .cta-card { padding: 48px 26px; border-radius: var(--radius-4); }
  .cta-card h2 { font-size: 28px; }
  .cta-card p { font-size: 16px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; }

  .footer-inner { flex-direction: column; }
  .footer-cols { gap: 36px; }
}