/* IBM Plex Sans and IBM Plex Sans KR, SIL Open Font License 1.1 (see /credits/OFL-IBM-Plex.txt) */
@font-face{font-family:'Plex Sans';font-style:normal;font-display:swap;font-weight:100 700;src:url(/assets/fonts/plex-sans-latin.e2291e842c.woff2) format('woff2-variations'),url(/assets/fonts/plex-sans-latin.e2291e842c.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Plex Sans';font-style:normal;font-display:swap;font-weight:100 700;src:url(/assets/fonts/plex-sans-latin-ext.d160e20920.woff2) format('woff2-variations'),url(/assets/fonts/plex-sans-latin-ext.d160e20920.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Plex Sans KR';font-style:normal;font-display:swap;font-weight:400;src:url(/assets/fonts/plex-sans-kr-400-subset.e1a3f62c1e.woff2) format('woff2')}
@font-face{font-family:'Plex Sans KR';font-style:normal;font-display:swap;font-weight:500;src:url(/assets/fonts/plex-sans-kr-500-subset.567775542d.woff2) format('woff2')}
@font-face{font-family:'Plex Sans KR';font-style:normal;font-display:swap;font-weight:600;src:url(/assets/fonts/plex-sans-kr-600-subset.954df1376b.woff2) format('woff2')}
/* Axinome — site styles
   Palette: midnight, graphite, warm white, paper, one restrained blue-teal accent.
   Type: IBM Plex Sans (Latin) with IBM Plex Sans KR (Hangul). */

:root {
  --midnight: #0f1b2d;
  --midnight-2: #14243a;
  --graphite: #1b2129;
  --ink: #15191e;
  --ink-2: #2a3038;
  --muted: #535a63;
  --paper: #f4f3ef;
  --paper-2: #e9e7e1;
  --white: #fbfbf9;
  --line: rgba(21, 25, 30, 0.14);
  --line-strong: rgba(21, 25, 30, 0.28);
  --accent: #1d6f80;
  --accent-ink: #165a68;
  --on-dark: #eceef1;
  --on-dark-muted: #a7b0bc;
  --on-dark-line: rgba(236, 238, 241, 0.16);
  --accent-on-dark: #86c9d3;
  --ax-mark: var(--accent);

  --font: 'Plex Sans', 'Plex Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', 'Noto Sans KR', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --wrap: 1240px;
  --gutter: clamp(20px, 4.5vw, 56px);
  --band: clamp(72px, 9vw, 128px);
  --radius: 6px;
  --focus: 0 0 0 3px var(--paper), 0 0 0 5px var(--accent);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.62;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "kern" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
.lang-ko body { line-height: 1.78; word-break: keep-all; overflow-wrap: anywhere; letter-spacing: -0.003em; }
img, svg, picture { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 500; line-height: 1.15; letter-spacing: -0.018em; text-wrap: balance; }
.lang-ko h1, .lang-ko h2, .lang-ko h3 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.32; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.6rem); }
h3 { font-size: 1.125rem; line-height: 1.35; font-weight: 550; letter-spacing: -0.005em; }
.lang-ko h3 { font-size: 1.0625rem; }
p { margin: 0 0 1em; max-width: 68ch; }
.lang-ko p { max-width: 42em; }
ul, ol, dl { margin: 0; padding: 0; }
li { list-style: none; }
dd { margin: 0; }
::selection { background: rgba(29, 111, 128, 0.22); }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.band-midnight :focus-visible, .band-graphite :focus-visible, .site-footer :focus-visible { outline-color: var(--accent-on-dark); }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: var(--radius); text-decoration: none; }
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding-inline: var(--gutter); }
.narrow > * { max-width: 860px; }

/* ------------------------------------------------------------ header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244, 243, 239, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(1.2) blur(8px);
  -webkit-backdrop-filter: saturate(1.2) blur(8px);
}
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--midnight); flex: none; }
.ax-symbol { width: 28px; height: 28px; flex: none; }
.wordmark { font-size: 1.32rem; font-weight: 560; letter-spacing: -0.012em; line-height: 1; }
.brand-descriptor { font-size: 0.8125rem; color: var(--muted); padding-left: 16px; border-left: 1px solid var(--line-strong); line-height: 1.2; white-space: nowrap; }
.nav-panel { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav-list { display: flex; gap: 4px; }
.nav-list a { display: block; padding: 8px 12px; text-decoration: none; font-size: 0.96875rem; color: var(--ink-2); border-radius: 4px; }
.nav-list a:hover { color: var(--ink); background: rgba(21, 25, 30, 0.05); }
.nav-list a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.header-tools { display: flex; align-items: center; gap: 18px; }
.lang-toggle { display: flex; align-items: center; gap: 6px; font-size: 0.9375rem; }
.lang-toggle a, .lang-current { padding: 6px 4px; text-decoration: none; }
.lang-current { font-weight: 600; color: var(--ink); }
.lang-link { color: var(--muted); }
.lang-link:hover { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 4px; }
.lang-sep { color: var(--line-strong); }
.menu-button { display: none; }

@media (max-width: 1180px) { .brand-descriptor { display: none; } }
@media (max-width: 960px) {
  /* backdrop-filter would make the header the containing block of the fixed menu panel */
  .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--paper); }
  .header-inner { min-height: 60px; }
  .menu-button {
    display: inline-flex; align-items: center; justify-content: center; margin-left: auto;
    width: 44px; height: 44px; border: 0; background: transparent; color: var(--ink); border-radius: var(--radius); cursor: pointer;
  }
  .menu-icon { position: relative; width: 22px; height: 12px; }
  .menu-icon span { position: absolute; left: 0; width: 22px; height: 2px; background: currentColor; transition: transform .2s ease, top .2s ease; }
  .menu-icon span:first-child { top: 0; }
  .menu-icon span:last-child { top: 10px; }
  .menu-button[aria-expanded="true"] .menu-icon span:first-child { top: 5px; transform: rotate(45deg); }
  .menu-button[aria-expanded="true"] .menu-icon span:last-child { top: 5px; transform: rotate(-45deg); }
  .nav-panel {
    position: fixed; inset: 60px 0 0 0; z-index: 49;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px var(--gutter) 32px; background: var(--paper);
    border-top: 1px solid var(--line);
    overflow-y: auto; visibility: hidden; opacity: 0; transform: translateY(-6px);
    transition: opacity .18s ease, transform .18s ease, visibility 0s linear .18s;
  }
  .nav-panel.is-open { visibility: visible; opacity: 1; transform: none; transition: opacity .18s ease, transform .18s ease; }
  .nav-list { flex-direction: column; gap: 0; }
  .nav-list a { padding: 16px 0; font-size: 1.25rem; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav-list a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); padding-left: 14px; }
  .header-tools { justify-content: space-between; padding-top: 24px; }
  .lang-toggle { font-size: 1.0625rem; }
  body.menu-open { overflow: hidden; }
}

/* ------------------------------------------------------------ buttons and links */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: var(--radius);
  font: inherit; font-size: 1rem; font-weight: 550; line-height: 1.2; text-decoration: none; cursor: pointer;
  border: 1.5px solid transparent; transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--midnight); color: var(--paper); }
.btn-primary:hover { background: var(--accent-ink); }
.btn-small { min-height: 40px; padding: 8px 16px; font-size: 0.9375rem; background: var(--midnight); color: var(--paper); }
.btn-small:hover { background: var(--accent-ink); }
.btn-light { background: var(--paper); color: var(--midnight); }
.btn-light:hover { background: #fff; }
.btn-ghost { border-color: rgba(236, 238, 241, 0.45); color: var(--on-dark); }
.btn-ghost:hover { border-color: var(--on-dark); background: rgba(236, 238, 241, 0.06); }
.text-link {
  color: var(--accent-ink); font-weight: 550; text-decoration: underline; text-decoration-thickness: 1px;
  text-underline-offset: 5px; text-decoration-color: rgba(22, 90, 104, 0.4);
}
.text-link:hover { text-decoration-color: currentColor; }
.text-link-light { color: var(--accent-on-dark); text-decoration-color: rgba(134, 201, 211, 0.45); }

/* ------------------------------------------------------------ bands */
.band { padding-block: var(--band); }
.band-white { background: var(--white); }
.band-paper { background: var(--paper); }
.band-paper2 { background: var(--paper-2); }
.band-midnight { background: var(--midnight); color: var(--on-dark); --ax-mark: var(--accent-on-dark); }
.band-graphite { background: var(--graphite); color: var(--on-dark); --ax-mark: var(--accent-on-dark); }
.band-midnight p, .band-graphite p { color: var(--on-dark-muted); }
.band + .band-paper2, .band-paper2 + .band-paper2 { }
.band-paper2 + .band-paper2 { box-shadow: inset 0 1px 0 var(--line); }

.section-head { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 24px 64px; align-items: end; margin-bottom: clamp(40px, 5vw, 64px); }
.section-head p { margin: 0; color: var(--muted); }
.band-graphite .section-head p, .band-midnight .section-head p { color: var(--on-dark-muted); }
.section-link { margin: clamp(32px, 4vw, 48px) 0 0; }
.muted { color: var(--muted); }
.note { font-size: 0.9375rem; color: var(--muted); margin-top: 20px; }
.h-small { font-size: 1.0625rem; margin: 32px 0 14px; }
.h-mid { font-size: clamp(1.375rem, 2.2vw, 1.75rem); margin-bottom: 20px; }
@media (max-width: 860px) { .section-head { grid-template-columns: 1fr; align-items: start; } }

/* ------------------------------------------------------------ hero */
.hero { padding-block: clamp(56px, 8vw, 112px) clamp(64px, 8vw, 120px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.hero-name { font-size: clamp(3.6rem, 9.4vw, 8.4rem); font-weight: 520; letter-spacing: -0.045em; line-height: 0.92; color: var(--paper); margin-left: -0.04em; }
.lang-ko .hero-name { font-weight: 520; letter-spacing: -0.045em; line-height: 0.92; }
.hero-descriptor { margin: 18px 0 0; font-size: 0.9375rem; color: var(--accent-on-dark) !important; letter-spacing: 0.01em; }
.hero-headline { margin: clamp(28px, 4vw, 44px) 0 0; font-size: clamp(1.5rem, 2.6vw, 2.15rem); line-height: 1.22; color: var(--on-dark) !important; font-weight: 450; letter-spacing: -0.015em; max-width: 22ch; }
.lang-ko .hero-headline { font-weight: 500; line-height: 1.38; max-width: 20em; letter-spacing: -0.025em; }
.hero-text { margin: 22px 0 0; max-width: 54ch; font-size: 1.0625rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero-visual { position: relative; }
.hero-map { width: 100%; height: auto; }

.hm-grid line { stroke: rgba(236, 238, 241, 0.055); stroke-width: 1; }
.hm-wall { fill: none; stroke: rgba(236, 238, 241, 0.28); stroke-width: 1.5; }
.hm-shelf { fill: rgba(236, 238, 241, 0.07); stroke: rgba(236, 238, 241, 0.32); stroke-width: 1.2; }
.hm-bay { stroke: rgba(236, 238, 241, 0.16); stroke-width: 1; }
.hm-pallet { fill: rgba(236, 238, 241, 0.04); stroke: rgba(236, 238, 241, 0.22); stroke-width: 1; stroke-dasharray: 3 3; }
.hm-plan { fill: none; stroke: rgba(134, 201, 211, 0.55); stroke-width: 1.6; stroke-dasharray: 5 6; }
.hm-trail { fill: none; stroke: var(--accent-on-dark); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.hm-unc { fill: rgba(134, 201, 211, 0.06); stroke: rgba(236, 238, 241, 0.3); stroke-width: 1; }
.hm-ax-x { stroke: var(--accent-on-dark); stroke-width: 1.8; stroke-linecap: square; }
.hm-ax-y { stroke: rgba(236, 238, 241, 0.75); stroke-width: 1.4; stroke-linecap: square; }
.hm-fan { fill: rgba(134, 201, 211, 0.07); stroke: none; }
.hm-hit { fill: #e9e7e1; opacity: 0.85; }
.hm-robot rect { fill: var(--midnight); stroke: var(--on-dark); stroke-width: 1.6; }
.hm-start { fill: none; stroke: var(--on-dark); stroke-width: 1.6; }
.hm-goal circle { fill: none; stroke: var(--accent-on-dark); stroke-width: 1.6; }
.hm-goal .hm-goal-dot { fill: var(--accent-on-dark); stroke: none; }
.hm-goal line { stroke: var(--accent-on-dark); stroke-width: 1.6; }

/* one orchestrated load sequence for the hero illustration */
@media (prefers-reduced-motion: no-preference) {
  .js .hero-map .hm-trail { stroke-dasharray: 1; stroke-dashoffset: 1; animation: hm-draw 1.9s cubic-bezier(.45, .05, .25, 1) .25s forwards; }
  .js .hero-map .hm-pose { opacity: 0; animation: hm-fade .45s ease forwards; animation-delay: var(--d); }
  .js .hero-map .hm-robot, .js .hero-map .hm-plan { opacity: 0; animation: hm-fade .5s ease 1.9s forwards; }
  .js .hero-map .hm-scan { opacity: 0; animation: hm-fade .7s ease 2.2s forwards; }
}
@keyframes hm-draw { to { stroke-dashoffset: 0; } }
@keyframes hm-fade { to { opacity: 1; } }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; margin-top: 8px; }
}

/* ------------------------------------------------------------ splits */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(36px, 6vw, 96px); align-items: center; }
.split-text > h2 { margin-bottom: 24px; }
.split-text p:last-child { margin-bottom: 0; }
.split-reverse > :first-child { order: 0; }
.split-intro { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.split-def { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); align-items: start; }
.split-contact { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
.split-media { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }
.split-reverse.split-media { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
.split-metrics { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); align-items: start; margin-top: clamp(56px, 7vw, 96px); }
.split-metrics .h-small { margin: 0; }
.split-s2r { margin-top: clamp(64px, 8vw, 112px); }
.sticky { position: sticky; top: 104px; }
@media (max-width: 900px) {
  .split, .split-intro, .split-def, .split-contact, .split-media, .split-reverse.split-media, .split-metrics { grid-template-columns: 1fr; }
  .sticky { position: static; }
  .split-reverse > .figure { order: 2; }
}

/* ------------------------------------------------------------ figures */
.figure { margin: 0; }
.figure picture, .figure img { width: 100%; border-radius: 4px; }
.figure img { aspect-ratio: 4 / 3; object-fit: cover; background: var(--paper-2); }
.figure figcaption, .diagram-figure figcaption { margin-top: 12px; font-size: 0.84375rem; line-height: 1.5; color: var(--muted); max-width: 62ch; }
.band-graphite .figure figcaption, .band-midnight .figure figcaption { color: var(--on-dark-muted); }
.fig-kind { display: inline-block; font-weight: 600; color: var(--ink-2); margin-right: 4px; }
.band-graphite .fig-kind, .band-midnight .fig-kind { color: var(--on-dark); }
.figure-dark img { background: var(--graphite); }
.figure-wide img { aspect-ratio: 16 / 7; object-position: 50% 52%; }
.theme-figure { margin: clamp(8px, 2vw, 24px) 0 clamp(56px, 7vw, 96px); }
.figure-wide.figure-dark figcaption { color: var(--muted); }
.diagram-figure { margin: 0; }
@media (max-width: 700px) { .figure-wide img { aspect-ratio: 4 / 3; } }

/* ------------------------------------------------------------ diagrams */
.diagram { width: 100%; height: auto; overflow: visible; }
.diagram-narrow { display: none; max-width: 420px; }
@media (max-width: 640px) { .diagram-wide { display: none; } .diagram-narrow { display: block; } }
.d-box rect { fill: var(--white); stroke: var(--line-strong); stroke-width: 1.2; }
.band-white .d-box rect { fill: var(--paper); }
.d-box.d-sw rect { fill: var(--midnight); stroke: var(--midnight); }
.d-box.d-sw .d-title { fill: var(--paper); }
.d-box.d-sw .d-sub { fill: var(--on-dark-muted); }
.d-box.d-ev rect { stroke: var(--accent); stroke-width: 1.6; }
.d-title { font-size: 17px; font-weight: 600; fill: var(--ink); font-family: var(--font); }
.d-sub { font-size: 12.5px; fill: var(--muted); font-family: var(--font); }
.d-line { fill: none; stroke: var(--ink-2); stroke-width: 1.4; }
.d-line.d-accent { stroke: var(--accent); stroke-width: 1.8; }
.d-arrowhead { fill: var(--ink-2); }
.d-label { font-size: 13px; fill: var(--muted); font-family: var(--font); }
.d-label-accent { fill: var(--accent-ink); font-weight: 550; }
.diagram-s2r { max-width: 720px; }
.diagram-s2r .d-line.d-accent + text { }

/* ------------------------------------------------------------ home blocks */
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: clamp(56px, 7vw, 96px); position: relative; }
.pillars::before, .footer-base::before { content: ""; position: absolute; top: 0; left: var(--gutter); right: var(--gutter); height: 1px; background: var(--line-strong); }
.pillar { padding: 28px 32px 8px 0; }
.pillar + .pillar { padding-left: 32px; border-left: 1px solid var(--line); }
.pillar h3 { font-size: 1.25rem; margin-bottom: 12px; }
.pillar p { color: var(--muted); font-size: 1rem; }
@media (max-width: 860px) {
  .pillars { grid-template-columns: 1fr; }
  .pillar, .pillar + .pillar { padding: 24px 0; border-left: 0; }
  .pillar + .pillar { border-top: 1px solid var(--line); }
}

.theme-rows { border-top: 1px solid var(--line-strong); }
.theme-row { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 3fr) minmax(0, 5fr); gap: 16px 48px; padding: 28px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.theme-row h3 { font-size: 1.3125rem; }
.theme-row .theme-scope { margin: 0; font-size: 0.9375rem; color: var(--muted); }
.theme-row .theme-q { margin: 0; color: var(--ink-2); }
@media (max-width: 960px) { .theme-row { grid-template-columns: 1fr; gap: 8px; } }

.tick-list { margin: 28px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; border-top: 1px solid var(--line-strong); }
.tick-list li { padding: 12px 0 12px 18px; border-bottom: 1px solid var(--line); position: relative; font-size: 0.96875rem; }
.tick-list li::before { content: ""; position: absolute; left: 0; top: 1.15em; width: 7px; height: 7px; border-left: 1.5px solid var(--accent); border-bottom: 1.5px solid var(--accent); }
@media (max-width: 560px) { .tick-list { grid-template-columns: 1fr; } }

.type-list { margin: 28px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 20px 32px; }
.type-list h3 { font-size: 1rem; margin-bottom: 4px; }
.type-list p { font-size: 0.9375rem; color: var(--muted); margin: 0; }
@media (max-width: 560px) { .type-list { grid-template-columns: 1fr; } }

.app-list { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--on-dark-line); }
.app-list li { grid-column: span 2; padding: 28px 28px 28px 0; border-bottom: 1px solid var(--on-dark-line); }
.app-list li:nth-child(4), .app-list li:nth-child(5) { grid-column: span 3; }
.app-list h3 { color: var(--on-dark); font-size: 1.1875rem; margin-bottom: 10px; }
.app-list p { margin: 0; font-size: 0.96875rem; }
@media (max-width: 900px) { .app-list { grid-template-columns: 1fr; } .app-list li, .app-list li:nth-child(4), .app-list li:nth-child(5) { grid-column: auto; padding-right: 0; } }

/* ------------------------------------------------------------ process flow */
.flow { position: relative; }
.flow-list { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; counter-reset: none; }
.flow-4 .flow-list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.flow-step { position: relative; padding: 30px 24px 0 0; }
.flow-step::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--line-strong); }
.flow-step::after {
  content: ""; position: absolute; top: -5px; right: 10px; width: 10px; height: 10px;
  border-top: 2px solid var(--ink-2); border-right: 2px solid var(--ink-2); transform: rotate(45deg);
}
.flow-step:last-child::after { display: none; }
.flow-step:first-child::before { left: 0; }
.flow-step h3 { font-size: 1.0625rem; margin-bottom: 10px; }
.flow-step p { font-size: 0.9375rem; color: var(--muted); margin: 0; }
.flow-step:first-child { box-shadow: inset 0 0 0 0 transparent; }
.flow-step:first-child h3::before {
  content: ""; position: absolute; left: 0; top: -6px; width: 14px; height: 14px; border-radius: 50%; background: var(--midnight);
}
.flow-loop { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); margin-top: 28px; }
.flow-loop-line {
  grid-column: 3 / 7; height: 28px; position: relative;
  border: 2px solid var(--accent); border-top: 0; border-radius: 0 0 8px 8px; margin-right: 24px;
}
.flow-loop-line::before {
  content: ""; position: absolute; left: -7px; top: -2px; width: 0; height: 0;
  border-left: 6px solid transparent; border-right: 6px solid transparent; border-bottom: 9px solid var(--accent);
}
.flow-loop-note { grid-column: 3 / 7; margin: 12px 0 0; font-size: 0.9375rem; color: var(--accent-ink); font-weight: 500; }
@media (max-width: 1000px) {
  .flow-list, .flow-4 .flow-list { grid-template-columns: 1fr; }
  .flow-step { padding: 0 0 28px 30px; }
  .flow-step::before { left: 6px; right: auto; top: 6px; bottom: 0; width: 2px; height: auto; }
  .flow-step::after { top: auto; bottom: 8px; right: auto; left: 2px; transform: rotate(135deg); }
  .flow-step:last-child { padding-bottom: 0; }
  .flow-step:last-child::before { bottom: 50%; }
  .flow-step:first-child h3::before { left: 0; top: 4px; }
  .flow-loop { grid-template-columns: 1fr; }
  .flow-loop-line { display: none; }
  .flow-loop-note { grid-column: 1; padding-left: 30px; position: relative; }
  .flow-loop-note::before { content: "↺"; position: absolute; left: 0; top: -2px; font-size: 1.25rem; color: var(--accent); }
}

/* ------------------------------------------------------------ metrics */
.metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; border-top: 1px solid var(--line-strong); }
.metric { padding: 18px 0; border-bottom: 1px solid var(--line); }
.metric dt { font-weight: 600; margin-bottom: 4px; }
.metric dd { color: var(--muted); font-size: 0.9375rem; }
.metrics-wrap .note { margin-top: 18px; }
@media (max-width: 640px) { .metrics { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------ page head */
.page-head { background: var(--paper); padding: clamp(56px, 8vw, 112px) 0 clamp(48px, 6vw, 80px); border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: clamp(2.75rem, 6.4vw, 5.25rem); letter-spacing: -0.035em; font-weight: 500; }
.lang-ko .page-head h1 { letter-spacing: -0.04em; font-weight: 600; }
.page-head .lead { margin: 22px 0 0; font-size: clamp(1.1875rem, 1.9vw, 1.5rem); line-height: 1.45; color: var(--ink-2); max-width: 46ch; }
.lang-ko .page-head .lead { max-width: 32em; line-height: 1.6; }
.status-note { margin: 32px 0 0; padding: 16px 20px; border-left: 3px solid var(--accent); background: var(--white); font-size: 0.96875rem; color: var(--ink-2); max-width: 78ch; }

/* ------------------------------------------------------------ research */
.theme { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 24px clamp(36px, 6vw, 96px); padding: clamp(48px, 6vw, 80px) 0; border-top: 1px solid var(--line-strong); }
.theme:first-child { padding-top: 0; border-top: 0; }
.theme-side h2 { font-size: clamp(1.625rem, 2.6vw, 2.125rem); margin-bottom: 18px; }
.theme-side .theme-scope { color: var(--muted); font-size: 0.96875rem; }
.theme-question { font-size: clamp(1.1875rem, 1.7vw, 1.375rem); line-height: 1.45; color: var(--ink); margin-bottom: 32px; max-width: 46ch; }
.lang-ko .theme-question { line-height: 1.65; max-width: 30em; }
.label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--accent-ink); margin-bottom: 8px; letter-spacing: 0; }
.theme-dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; border-top: 1px solid var(--line); padding-top: 24px; }
.theme-dl dt { font-weight: 600; font-size: 0.9375rem; margin-bottom: 8px; }
.theme-dl dd { font-size: 0.9375rem; color: var(--muted); }
@media (max-width: 1100px) { .theme-dl { grid-template-columns: 1fr; gap: 18px; } }
@media (max-width: 900px) { .theme { grid-template-columns: 1fr; } }

.apps { display: grid; gap: 0; border-top: 1px solid var(--line-strong); }
.app { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); gap: 8px 48px; padding: 32px 0; border-bottom: 1px solid var(--line); }
.app-tag { grid-column: 1; margin: 0; font-size: 0.8125rem; color: var(--accent-ink); font-weight: 600; }
.app h3 { grid-column: 1; font-size: 1.25rem; }
.app-dl { grid-column: 2; grid-row: 1 / span 2; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.app-dl dt { font-size: 0.875rem; font-weight: 600; margin-bottom: 6px; }
.app-dl dd { font-size: 0.9375rem; color: var(--muted); }
@media (max-width: 1000px) { .app { grid-template-columns: 1fr; } .app-dl { grid-column: 1; grid-row: auto; grid-template-columns: 1fr; gap: 14px; margin-top: 12px; } }

/* ------------------------------------------------------------ engineering */
.def-list { border-top: 1px solid var(--line-strong); }
.def-row { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 8px 36px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.def-row dt { font-weight: 600; font-size: 1.0625rem; line-height: 1.4; }
.def-row dd { color: var(--muted); font-size: 0.96875rem; }
.band-graphite .def-row { border-color: var(--on-dark-line); }
@media (max-width: 640px) { .def-row { grid-template-columns: 1fr; } }
.aside-note { margin-top: clamp(48px, 6vw, 80px); display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 16px clamp(36px, 6vw, 96px); padding: 28px 0 0; border-top: 1px solid var(--line-strong); }
.aside-note h3 { font-size: 1.125rem; }
.aside-note p { margin: 0; color: var(--ink-2); }
@media (max-width: 900px) { .aside-note { grid-template-columns: 1fr; } }

.deliv-list { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px 32px; }
.deliv-list h3 { font-size: 1rem; margin-bottom: 6px; padding-top: 14px; border-top: 2px solid var(--midnight); }
.deliv-list p { font-size: 0.9375rem; color: var(--muted); margin: 0; }
@media (max-width: 560px) { .deliv-list { grid-template-columns: 1fr; } }

.table-wrap { overflow-x: auto; }
.metric-table { width: 100%; border-collapse: collapse; font-size: 0.96875rem; }
.metric-table th, .metric-table td { text-align: left; vertical-align: top; padding: 16px 20px 16px 0; border-bottom: 1px solid var(--line); }
.metric-table thead th { font-size: 0.875rem; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--line-strong); }
.metric-table tbody th { font-weight: 600; width: 38%; }
.metric-table td { color: var(--ink-2); }

.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 40px; border-top: 1px solid var(--on-dark-line); }
.compare > div { padding: 28px 40px 0 0; }
.compare > div + div { padding-left: 40px; border-left: 1px solid var(--on-dark-line); }
.compare h3 { color: var(--on-dark); font-size: 1.25rem; margin-bottom: 12px; }
@media (max-width: 760px) { .compare { grid-template-columns: 1fr; } .compare > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--on-dark-line); margin-top: 28px; } }

.practice-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px 32px; margin-top: 36px; }
.practice-list h3 { font-size: 1.0625rem; margin-bottom: 8px; }
.practice-list p { font-size: 0.9375rem; color: var(--muted); margin: 0; }
.practice-list li { padding-top: 18px; border-top: 2px solid var(--midnight); }
@media (max-width: 1000px) { .practice-list { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .practice-list { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------ platforms */
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; border-top: 1px solid var(--line-strong); }
.facts > div { padding: 12px 0; border-bottom: 1px solid var(--line); }
.facts dt { font-size: 0.84375rem; color: var(--muted); }
.facts dd { font-weight: 600; }
.rbq-contrib { margin-top: clamp(56px, 7vw, 96px); }
.boundary { color: var(--ink-2); padding-left: 16px; border-left: 3px solid var(--midnight); font-size: 0.96875rem; }
.types { display: grid; gap: 0; border-top: 1px solid var(--line-strong); }
.type { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 28px clamp(36px, 6vw, 96px); padding: clamp(36px, 5vw, 56px) 0; border-bottom: 1px solid var(--line); align-items: center; }
.type:not(:has(.figure)) { grid-template-columns: minmax(0, 1fr); }
.type h3 { font-size: clamp(1.375rem, 2vw, 1.75rem); margin-bottom: 20px; }
.type-dl { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.type-dl dt { font-weight: 600; font-size: 0.9375rem; margin-bottom: 6px; }
.type-dl dd { font-size: 0.9375rem; color: var(--muted); }
.type-ref { margin: 20px 0 0; }
.figure-type img { aspect-ratio: 4 / 3; }
@media (max-width: 900px) { .type { grid-template-columns: 1fr; } .type-dl { grid-template-columns: 1fr; } }
.lead-small { font-size: clamp(1.125rem, 1.6vw, 1.3125rem); line-height: 1.6; color: var(--ink-2); margin-top: 20px; }

/* ------------------------------------------------------------ collaboration */
.partner-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px 32px; margin-top: 40px; }
.partner-list li { padding-top: 18px; border-top: 2px solid var(--midnight); }
.partner-list h3 { font-size: 1.1875rem; margin-bottom: 10px; }
.partner-list p { font-size: 0.9375rem; color: var(--muted); margin: 0; }
@media (max-width: 1000px) { .partner-list { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .partner-list { grid-template-columns: 1fr; } }
.resp-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 40px; border-top: 1px solid var(--on-dark-line); }
.resp-list li { padding: 28px 40px 28px 0; border-bottom: 1px solid var(--on-dark-line); }
.resp-list li:nth-child(even) { padding-left: 40px; padding-right: 0; border-left: 1px solid var(--on-dark-line); }
.resp-list h3 { color: var(--on-dark); font-size: 1.1875rem; margin-bottom: 10px; }
.resp-list p { margin: 0; font-size: 0.96875rem; }
@media (max-width: 760px) { .resp-list { grid-template-columns: 1fr; } .resp-list li, .resp-list li:nth-child(even) { padding: 24px 0; border-left: 0; } }
#h-start + .flow { margin-top: 48px; }

/* ------------------------------------------------------------ CTA band */
.cta-band { padding-block: clamp(64px, 8vw, 112px); }
.cta-inner { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px 64px; align-items: end; }
.cta-inner h2 { color: var(--paper); margin-bottom: 18px; }
.cta-inner p { margin: 0; max-width: 56ch; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }
@media (max-width: 860px) { .cta-inner { grid-template-columns: 1fr; } .cta-actions { justify-content: flex-start; } }

/* ------------------------------------------------------------ company and contact */
.prose p { font-size: 1.125rem; line-height: 1.65; color: var(--ink-2); }
.lang-ko .prose p { line-height: 1.85; }
.split-def + .wrap { margin-top: clamp(64px, 8vw, 112px); }
.contact-email { margin-top: 28px; display: flex; flex-direction: column; gap: 4px; }
.contact-email-label { font-size: 0.875rem; color: var(--muted); }
.contact-email a { font-size: clamp(1.375rem, 2.4vw, 1.75rem); color: var(--midnight); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px; text-decoration-color: rgba(15, 27, 45, 0.3); font-weight: 500; overflow-wrap: anywhere; }
.contact-email a:hover { text-decoration-color: currentColor; }
.form-card { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: clamp(24px, 4vw, 44px); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field { margin-bottom: 20px; }
.field label { display: block; font-weight: 600; font-size: 0.9375rem; margin-bottom: 6px; }
.req { font-weight: 400; color: var(--muted); font-size: 0.8125rem; }
.hint { font-size: 0.875rem; color: var(--muted); margin: -2px 0 8px; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink); background: var(--paper);
  border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 12px 14px; min-height: 48px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field select { appearance: none; -webkit-appearance: none; padding-right: 40px;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px, 6px 6px; background-repeat: no-repeat; }
.field textarea { resize: vertical; min-height: 150px; line-height: 1.55; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(29, 111, 128, 0.2); background: #fff; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: #a3322a; }
.field-error { margin: 6px 0 0; font-size: 0.875rem; color: #a3322a; font-weight: 500; }
.form-summary { margin-bottom: 20px; padding: 12px 16px; border-left: 3px solid #a3322a; background: #fbefed; color: #7d231d; font-weight: 500; }
.form-note { font-size: 0.875rem; color: var(--muted); margin: 0 0 20px; }
.form-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.form-status { margin-top: 20px; padding: 18px 20px; border-left: 3px solid var(--accent); background: var(--paper); }
.form-status p { margin: 0 0 10px; font-size: 0.96875rem; }
.form-status textarea { width: 100%; min-height: 160px; font: inherit; font-size: 0.875rem; padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #fff; margin: 6px 0 12px; }
.btn-secondary { background: transparent; color: var(--midnight); border-color: var(--line-strong); min-height: 42px; padding: 8px 16px; font-size: 0.9375rem; }
.btn-secondary:hover { border-color: var(--midnight); }
.copy-status { font-size: 0.875rem; color: var(--muted); margin-left: 12px; }
.credits { margin-top: 24px; border-top: 1px solid var(--line-strong); }
.credits li { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 0.9375rem; color: var(--ink-2); }

/* ------------------------------------------------------------ footer */
.band-midnight + .site-footer, main:has(> .band-midnight:last-child) + .site-footer { box-shadow: inset 0 1px 0 var(--on-dark-line); }
.site-footer { background: var(--midnight); color: var(--on-dark-muted); padding: clamp(56px, 7vw, 88px) 0 32px; --ax-mark: var(--accent-on-dark); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 4fr); gap: 40px; }
.brand-footer { color: var(--on-dark); }
.footer-descriptor { margin: 10px 0 0; color: var(--on-dark); font-size: 0.9375rem; }
.footer-about { margin-top: 14px; font-size: 0.9375rem; max-width: 40ch; }
.footer-nav ul { display: grid; gap: 4px; }
.footer-nav a, .site-footer a { color: var(--on-dark); text-decoration: none; }
.footer-nav a { display: inline-block; padding: 6px 0; }
.footer-nav a:hover, .footer-small a:hover, .footer-email:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-label { margin: 6px 0 6px; font-size: 0.875rem; }
.footer-email { font-size: 1.1875rem; font-weight: 500; }
.footer-small { font-size: 0.875rem; margin-top: 18px; }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: clamp(48px, 6vw, 72px); padding-top: 24px; position: relative; font-size: 0.84375rem; }
.footer-base::before { background: var(--on-dark-line); }
.footer-base p { margin: 0; max-width: none; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------ root and 404 */
.root-select { display: grid; place-items: center; min-height: 100vh; padding: 24px; background: var(--paper); }
.root-main { max-width: 560px; }
.root-brand { display: flex; align-items: center; gap: 10px; color: var(--midnight); margin-bottom: 28px; }
.root-brand .ax-symbol { width: 32px; height: 32px; }
.root-links { display: flex; gap: 24px; font-size: 1.125rem; }
.root-links a { color: var(--accent-ink); }
.nf-title { font-size: 1.5rem; margin: 24px 0 8px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header, .site-footer, .hero-visual, .cta-band, .form-card { display: none; }
  .band { padding-block: 24px; }
  body { background: #fff; }
}

/* The Korean label in the English header uses a system face so English pages do not load the Korean web font. */
.lang-en [lang="ko"] { font-family: 'Apple SD Gothic Neo', 'Malgun Gothic', 'Noto Sans KR', system-ui, sans-serif; }