:root {
  --ink: #001e2b;
  --teal: #003d4f;
  --green: #00ed64;
  --green-dark: #00684a;
  --mint: #e3fcef;
  --paper: #fff;
  --soft: #f4f7f6;
  --line: #dce5e6;
  --muted: #52646b;
  --radius: 24px;
  --font: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { max-width: 100%; }
h1, h2, h3, p { margin: 0; }
section[id] { scroll-margin-top: 76px; }
.container-wide { width: min(1440px, calc(100% - 88px)); margin-inline: auto; }
.skip-link { position: absolute; top: -60px; left: 16px; z-index: 1000; padding: 12px 18px; background: var(--green); border-radius: 8px; }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--green-dark); outline-offset: 4px; }

/* 고정된 헤더 대신 문서 흐름을 유지하는 헤더로 모든 화면에서 탐색이 자연스럽게 이어진다. */
.site-header { position: relative; z-index: 20; background: #fff; border-bottom: 1px solid var(--line); }
.site-header__inner { min-height: 76px; display: flex; align-items: center; gap: 48px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; font-size: 22px; font-weight: 850; letter-spacing: -.055em; }
.brand img { object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: clamp(20px, 2.8vw, 44px); margin-left: auto; }
.site-nav a { font-size: 15px; font-weight: 700; transition: color .2s; white-space: nowrap; }
.site-nav a:hover { color: var(--green-dark); }
.site-nav__mobile-cta { display: none; }
.header-cta { display: inline-flex; align-items: center; justify-content: center; min-width: 132px; height: 42px; padding: 0 18px; border-radius: 999px; background: var(--ink); color: #fff; font-size: 14px; font-weight: 750; white-space: nowrap; transition: background .2s, transform .2s; }
.header-cta:hover { color: #fff; background: var(--teal); transform: translateY(-2px); }
.menu-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; margin-left: auto; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.menu-toggle span { width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }

.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: clamp(52px, 6vw, 112px); min-height: min(720px, calc(100vh - 76px)); padding-block: 50px 62px; }
.hero-visual { position: relative; display: flex; flex-direction: column; min-height: 590px; overflow: hidden; border-radius: 34px; color: #fff; background: radial-gradient(circle at 75% 20%, #0b5a61 0%, transparent 38%), linear-gradient(145deg, #002835 0%, #001e2b 68%, #002d36 100%); box-shadow: 0 26px 60px rgba(0, 30, 43, .12); }
.hero-visual::before { content: ""; position: absolute; inset: 0; opacity: .3; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 38px 38px; mask-image: linear-gradient(to bottom, transparent, #000 30%, #000 80%, transparent); }
.visual-topline, .visual-bottomline { position: relative; z-index: 2; display: flex; align-items: center; gap: 14px; padding: 28px 32px; font-size: 11px; letter-spacing: .16em; font-weight: 700; }
.visual-topline { border-bottom: 1px solid rgba(255,255,255,.1); }
.visual-mark { display: grid; place-items: center; width: 27px; height: 27px; border: 2px solid var(--green); border-radius: 50%; font-size: 14px; font-weight: 900; letter-spacing: -.1em; line-height: 1; }
.visual-mark span { color: var(--green); font-size: 5px; margin-left: -7px; }
.visual-topline__status { margin-left: auto; color: #b7ddcc; font-size: 10px; white-space: nowrap; }
.visual-topline__status i { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 14px var(--green); }
.visual-stage { position: relative; flex: 1; min-height: 440px; }
.visual-orbit { position: absolute; width: 370px; height: 370px; border: 1px solid rgba(0,237,100,.24); border-radius: 50%; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.visual-orbit--two { width: 550px; height: 550px; border-color: rgba(255,255,255,.09); }
.visual-orbit::before, .visual-orbit::after { content: ""; position: absolute; width: 7px; height: 7px; background: var(--green); border-radius: 50%; top: 20%; left: 15%; box-shadow: 0 0 20px var(--green); }
.visual-orbit::after { top: auto; left: auto; bottom: 17%; right: 14%; }
.visual-core { position: absolute; top: 50%; left: 50%; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 15px; width: 186px; height: 186px; border: 1px solid rgba(0,237,100,.42); border-radius: 50%; background: radial-gradient(circle, #0b4550, #002a38); box-shadow: 0 0 0 16px rgba(0,237,100,.045), 0 0 60px rgba(0,237,100,.11); transform: translate(-50%, -50%); }
.visual-core img { width: 52px; height: 62px; object-fit: contain; }
.visual-core span { color: #d7eee2; text-align: center; font-size: 12px; line-height: 1.4; }
.visual-node { position: absolute; z-index: 3; display: grid; grid-template-columns: 30px 1fr; column-gap: 10px; min-width: 158px; padding: 14px; border: 1px solid rgba(255,255,255,.2); border-radius: 14px; background: rgba(1, 39, 52, .9); box-shadow: 0 14px 35px rgba(0,0,0,.18); backdrop-filter: blur(8px); }
.visual-node__icon { grid-row: span 2; display: grid; place-items: center; width: 29px; height: 29px; border-radius: 8px; background: var(--green); color: var(--ink); font-size: 10px; font-weight: 850; }
.visual-node strong { font-size: 14px; line-height: 1.1; }
.visual-node small { color: #a9c3c7; font-size: 10px; white-space: nowrap; }
.visual-node--front { top: 13%; left: 8%; }
.visual-node--server { top: 30%; right: 6%; }
.visual-node--network { bottom: 12%; left: 12%; }
.visual-bottomline { justify-content: center; gap: 20px; color: #b9d4ce; border-top: 1px solid rgba(255,255,255,.1); }
.visual-bottomline__line { width: 30px; height: 1px; background: var(--green); }
.hero-copy { padding-block: 25px; }
.eyebrow, .section-label { display: inline-flex; align-items: center; gap: 9px; color: var(--green-dark); font-size: 12px; font-weight: 850; letter-spacing: .14em; }
.eyebrow__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }
.hero h1 { margin-top: 25px; font-size: clamp(48px, 4.55vw, 76px); font-weight: 710; line-height: 1.19; letter-spacing: -.075em; word-break: keep-all; }
.hero h1 em, .section-block h2 em, .contact h2 em { font-style: normal; color: var(--green-dark); }
.hero-copy > p { max-width: 540px; margin-top: 30px; color: #3d4f5b; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.72; word-break: keep-all; }
.hero-actions, .contact-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 37px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 54px; padding: 13px 25px; border: 1px solid transparent; border-radius: 999px; font-size: 15px; font-weight: 800; line-height: 1.3; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-3px); }
.button--primary { background: var(--green); color: var(--ink); }
.button--primary:hover { background: #00d85b; color: var(--ink); }
.button--text { padding-inline: 12px; color: var(--ink); }
.button--text:hover { color: var(--green-dark); }
.hero-footnote { display: flex; align-items: center; gap: 12px; margin-top: 66px; color: #789097; font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.hero-footnote__line { width: 27px; height: 1px; background: #90a7aa; }

.capability-strip { border-block: 1px solid var(--line); background: var(--soft); }
.capability-strip__inner { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); align-items: center; gap: 26px; padding-block: 34px; }
.capability-strip p { font-size: 16px; line-height: 1.5; }
.capability-strip p strong { font-weight: 800; }
.capability-strip__inner > div { display: flex; flex-direction: column; gap: 8px; padding-left: 27px; border-left: 1px solid #cbd9d9; }
.capability-strip__inner > div span { color: var(--green-dark); font-size: 11px; font-weight: 850; letter-spacing: .07em; }
.capability-strip__inner > div strong { font-size: 15px; font-weight: 700; word-break: keep-all; }
.section-block { padding-block: clamp(92px, 9vw, 150px); }
.section-block h2, .contact h2 { font-size: clamp(42px, 4.6vw, 68px); font-weight: 680; line-height: 1.19; letter-spacing: -.07em; word-break: keep-all; }
.section-intro h2, .section-heading h2 { margin-top: 21px; }
.about-grid { display: grid; grid-template-columns: .92fr 1fr; gap: clamp(60px, 9vw, 150px); }
.about-content { padding-top: 52px; }
.about-lead { font-size: clamp(23px, 2.1vw, 32px); font-weight: 720; letter-spacing: -.05em; line-height: 1.43; }
.about-content > p:not(.about-lead) { max-width: 660px; margin-top: 26px; color: var(--muted); font-size: 17px; line-height: 1.85; word-break: keep-all; }
.about-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 50px; padding-top: 25px; border-top: 1px solid var(--line); }
.about-meta div { display: flex; flex-direction: column; gap: 7px; }
.about-meta strong { font-size: clamp(16px, 1.5vw, 22px); font-weight: 800; letter-spacing: -.04em; white-space: nowrap; }
.about-meta span { color: var(--muted); font-size: 13px; }
.solutions { background: var(--soft); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 48px; }
.section-heading > p { max-width: 330px; margin-bottom: 5px; color: var(--muted); font-size: 17px; line-height: 1.7; word-break: keep-all; }
.solution-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.solution-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.solution-card__top { padding: 25px 30px 0; color: var(--green-dark); font-size: 11px; font-weight: 850; letter-spacing: .1em; }
.solution-card__art { position: relative; height: 225px; overflow: hidden; margin: 22px 30px 0; border-radius: 15px; }
.solution-card__art--kids { background: radial-gradient(circle at 48% 105%, #b9eecf, transparent 65%), linear-gradient(135deg, #ddf9e8, #effdf4); }
.art-device { position: absolute; bottom: -25px; left: 50%; width: 176px; height: 220px; padding: 13px; border: 7px solid #113a46; border-radius: 28px; background: #f8fffa; box-shadow: 0 20px 35px rgba(0,30,43,.2); transform: translateX(-50%); }
.art-device__camera { width: 38px; height: 5px; margin: 0 auto 24px; border-radius: 9px; background: #92a9a7; }
.art-device__face { display: grid; place-items: center; width: 82px; height: 82px; margin: 0 auto 13px; border: 2px dashed #8ecbab; border-radius: 50%; color: var(--green-dark); font-size: 52px; line-height: 1; }
.art-device__check { padding: 8px; border-radius: 9px; background: #d8f9e4; color: var(--green-dark); text-align: center; font-size: 12px; font-weight: 800; }
.art-alert { position: absolute; top: 52px; right: 12%; padding: 11px 16px; border-radius: 12px; background: #fff; box-shadow: 0 10px 25px rgba(0,30,43,.14); color: var(--ink); font-size: 12px; font-weight: 800; transform: rotate(7deg); }
.art-alert span { margin-left: 8px; color: var(--green); }
.solution-card__art--ppippi { background: radial-gradient(circle at 25% 90%, #8dc9bd, transparent 55%), linear-gradient(125deg, #034a58, #001e2b); }
.art-card { position: absolute; top: 30px; left: 50%; width: 255px; height: 175px; border-radius: 17px; box-shadow: 0 20px 35px rgba(0,0,0,.24); }
.art-card--back { border: 1px solid rgba(255,255,255,.15); background: #178069; transform: translateX(-35%) rotate(12deg); }
.art-card--front { padding: 17px; background: #fff; transform: translateX(-56%) rotate(-6deg); }
.art-card__avatar { display: grid; place-items: center; width: 43px; height: 43px; border-radius: 13px; background: var(--green); color: var(--ink); font-size: 25px; font-weight: 900; }
.art-card__lines { display: grid; gap: 8px; margin-top: 13px; }
.art-card__lines i { display: block; width: 68%; height: 7px; border-radius: 9px; background: #d5e1e0; }
.art-card__lines i:first-child { width: 44%; height: 9px; background: var(--ink); }
.art-card__lines i:last-child { width: 56%; }
.art-card__footer { display: flex; gap: 8px; margin-top: 13px; }
.art-card__footer span { padding: 5px 7px; border-radius: 5px; background: #e9faf0; color: var(--green-dark); font-size: 8px; font-weight: 850; }
.solution-card__body { padding: 30px; }
.solution-card__body img { width: auto; height: 26px; object-fit: contain; }
.solution-card__body img.ppippi-logo { height: 42px; border-radius: 8px; }
.solution-card h3 { margin-top: 20px; font-size: clamp(24px, 2.3vw, 34px); font-weight: 750; line-height: 1.34; letter-spacing: -.055em; }
.solution-card p { min-height: 56px; margin-top: 15px; color: var(--muted); font-size: 15px; line-height: 1.75; word-break: keep-all; }
.solution-card__body a { display: inline-flex; align-items: center; margin-top: 26px; color: var(--green-dark); font-size: 14px; font-weight: 850; }
.solution-card__body a:hover { text-decoration: underline; text-underline-offset: 4px; }
.business { color: #fff; background: var(--ink); }
.section-heading--dark .section-label { color: var(--green); }
.section-heading--dark h2 em { color: var(--green); }
.section-heading--dark > p { color: #b5c6cb; }
.business-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.business-card { display: flex; flex-direction: column; min-height: 335px; padding: 28px; border: 1px solid #235061; border-radius: 18px; background: #073344; transition: background .25s, transform .25s; }
.business-card:hover { background: #0d4050; transform: translateY(-4px); }
.business-card__number { color: #9db9be; font-size: 11px; font-weight: 800; letter-spacing: .1em; }
.business-card__symbol { display: grid; place-items: center; width: 47px; height: 47px; margin-top: 27px; border-radius: 13px; background: var(--green); color: var(--ink); font-size: 26px; font-weight: 700; }
.business-card h3 { margin-top: 24px; font-size: 24px; font-weight: 750; letter-spacing: -.04em; }
.business-card p { margin-top: 10px; color: #bfd0d1; font-size: 14px; line-height: 1.75; word-break: keep-all; }
.business-card__tag { display: inline-block; align-self: start; margin-top: auto; padding-top: 22px; color: var(--green); font-size: 12px; font-weight: 800; }
.portfolio-list { border-top: 1px solid var(--ink); }
.portfolio-row { display: grid; grid-template-columns: 150px minmax(260px, 1fr) minmax(190px, .7fr); align-items: center; gap: 20px; min-height: 112px; border-bottom: 1px solid var(--line); }
.portfolio-row > span:first-child { color: var(--green-dark); font-size: 12px; font-weight: 800; }
.portfolio-row h3 { font-size: clamp(17px, 1.6vw, 22px); font-weight: 750; letter-spacing: -.035em; word-break: keep-all; }
.portfolio-row p { color: var(--muted); font-size: 14px; line-height: 1.5; word-break: keep-all; }
.contact { position: relative; overflow: hidden; padding-block: clamp(90px, 8vw, 130px); color: #fff; background: #064b4d; }
.contact-inner { display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.contact .section-label { color: var(--green); }
.contact h2 { margin-top: 22px; }
.contact h2 em { color: var(--green); }
.contact p { margin-top: 24px; color: #d4e6e3; font-size: 17px; line-height: 1.6; word-break: keep-all; }
.button--outline { border-color: rgba(255,255,255,.55); color: #fff; }
.button--outline:hover { border-color: #fff; color: #fff; }
.contact-graphic { position: relative; display: grid; place-items: center; flex: 0 0 320px; width: 320px; height: 320px; border: 1px solid rgba(0,237,100,.45); border-radius: 50%; }
.contact-graphic::before, .contact-graphic::after { content: ""; position: absolute; inset: -44px; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; }
.contact-graphic::after { inset: -90px; border-color: rgba(255,255,255,.07); }
.contact-graphic span { font-size: 180px; font-weight: 850; letter-spacing: -.15em; line-height: 1; color: var(--green); transform: translateX(-11px); }
.contact-graphic i { position: absolute; right: 10px; top: 35px; width: 18px; height: 18px; background: var(--green); border-radius: 50%; }
.contact-graphic i:last-child { right: auto; top: auto; bottom: 22px; left: 35px; width: 10px; height: 10px; }
.site-footer { color: #b9cacd; background: var(--ink); }
.footer-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; padding-block: 56px 24px; }
.brand--footer { color: #fff; }
.brand--footer:hover { color: #fff; }
.footer-brand p { margin-top: 16px; font-size: 14px; }
.footer-details { display: flex; flex-direction: column; align-items: start; gap: 7px; font-size: 13px; line-height: 1.6; }
.footer-details a:hover, .footer-bottom a:hover { color: var(--green); }
.footer-bottom { display: flex; justify-content: space-between; grid-column: 1 / -1; padding-top: 23px; border-top: 1px solid #22414d; font-size: 12px; }

@media (max-width: 1200px) {
  .container-wide { width: min(100% - 64px, 1120px); }
  .hero { gap: 48px; }
  .hero-visual { min-height: 530px; }
  .visual-node--front { left: 5%; }
  .visual-node--server { right: 3%; }
  .business-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .business-card { min-height: 280px; }
}
@media (max-width: 900px) {
  .site-header__inner { gap: 20px; }
  .site-nav { gap: 18px; }
  .site-nav a { font-size: 13px; }
  .header-cta { min-width: auto; }
  .hero { grid-template-columns: 1fr; gap: 42px; padding-block: 42px 70px; }
  .hero-visual { min-height: 500px; }
  .hero-copy { max-width: 710px; padding-block: 0; }
  .hero-footnote { margin-top: 35px; }
  .capability-strip__inner { grid-template-columns: repeat(2, 1fr); }
  .capability-strip__inner > div:nth-child(2) { border-left: none; padding-left: 0; }
  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .about-content { padding-top: 0; }
  .portfolio-row { grid-template-columns: 130px 1fr; }
  .portfolio-row p { grid-column: 2; grid-row: 2; margin-top: -20px; }
}
@media (max-width: 700px) {
  .container-wide { width: calc(100% - 36px); }
  .site-header__inner { min-height: 68px; }
  .brand { font-size: 20px; }
  .brand img { width: 29px; height: 35px; }
  .header-cta { display: none; }
  .menu-toggle { display: flex; }
  .site-nav { position: absolute; top: 68px; left: 0; right: 0; display: none; align-items: stretch; flex-direction: column; gap: 0; margin: 0; padding: 12px 18px 23px; border-bottom: 1px solid var(--line); background: #fff; box-shadow: 0 25px 35px rgba(0,30,43,.12); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 15px 10px; font-size: 17px; }
  .site-nav__mobile-cta { display: block; margin-top: 8px; border-radius: 12px; background: var(--ink); color: #fff; }
  .site-nav__mobile-cta:hover { color: #fff !important; }
  .hero { gap: 36px; padding-block: 24px 75px; }
  .hero-visual { min-height: 430px; border-radius: 23px; }
  .visual-topline, .visual-bottomline { padding: 17px 19px; font-size: 9px; }
  .visual-topline__status { font-size: 8px; }
  .visual-stage { min-height: 350px; }
  .visual-core { width: 150px; height: 150px; }
  .visual-core img { width: 42px; height: 50px; }
  .visual-orbit { width: 295px; height: 295px; }
  .visual-orbit--two { width: 420px; height: 420px; }
  .visual-node { min-width: 120px; padding: 9px; grid-template-columns: 23px 1fr; gap: 5px; }
  .visual-node__icon { width: 22px; height: 22px; font-size: 8px; }
  .visual-node strong { font-size: 11px; }
  .visual-node small { font-size: 8px; }
  .visual-node--front { top: 8%; left: 4%; }
  .visual-node--server { top: 34%; right: 2%; }
  .visual-node--network { bottom: 9%; left: 4%; }
  .hero h1 { font-size: clamp(42px, 9vw, 61px); }
  .hero-copy > p { margin-top: 22px; font-size: 17px; }
  .hero-actions { margin-top: 28px; }
  .hero-footnote { margin-top: 35px; }
  .capability-strip__inner { gap: 23px 12px; padding-block: 26px; }
  .capability-strip p { grid-column: 1 / -1; font-size: 17px; }
  .capability-strip__inner > div { padding-left: 0; border-left: none; }
  .capability-strip__inner > div strong { font-size: 14px; }
  .section-block { padding-block: 82px; }
  .section-block h2, .contact h2 { font-size: clamp(38px, 8vw, 54px); }
  .section-heading { display: block; margin-bottom: 32px; }
  .section-heading > p { margin-top: 22px; font-size: 16px; }
  .about-lead { font-size: 25px; }
  .about-content > p:not(.about-lead) { font-size: 16px; }
  .about-meta { gap: 13px; margin-top: 35px; }
  .about-meta strong { font-size: 14px; white-space: normal; }
  .about-meta span { font-size: 11px; }
  .solution-grid, .business-grid { grid-template-columns: 1fr; }
  .solution-card__top { padding-inline: 21px; }
  .solution-card__art { margin-inline: 21px; }
  .solution-card__body { padding: 24px 21px 28px; }
  .business-card { min-height: 250px; }
  .portfolio-row { grid-template-columns: 1fr; gap: 8px; padding-block: 25px; }
  .portfolio-row > span:first-child, .portfolio-row h3, .portfolio-row p { grid-column: 1; }
  .portfolio-row h3 { grid-row: 2; font-size: 19px; }
  .portfolio-row p { grid-row: 3; margin: 0; }
  .contact { padding-block: 82px; }
  .contact-graphic { display: none; }
  .contact-actions { align-items: stretch; flex-direction: column; }
  .contact-actions .button { justify-content: center; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; padding-top: 42px; }
  .footer-bottom { gap: 12px; }
}
@media (max-width: 390px) {
  .visual-topline__status { display: none; }
  .visual-node--front { left: 1%; }
  .visual-node--server { right: 1%; }
  .visual-node--network { left: 1%; }
  .hero h1 { font-size: 40px; }
  .about-meta { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}