@font-face {
  font-family: "Pretendard";
  src: url("PretendardVariable.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --navy: #13386c;
  --blue: #2f6bb7;
  --text: #142c48;
  --muted: #637082;
  --line: #e0e6ee;
  --pale: #f4f7fb;
  --font: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 114px; }
body { margin: 0; color: var(--text); background: #fff; font-family: var(--font); -webkit-font-smoothing: antialiased; line-height: 1.65; }
button, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { max-width: 100%; }
h1, h2, h3, p, figure { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { word-break: keep-all; overflow-wrap: break-word; }
a, button { touch-action: manipulation; }
:focus-visible { outline: 3px solid #4b91dd; outline-offset: 5px; }
::selection { background: #d1e4f8; color: #102d54; }
.container { width: calc(100% - 96px); max-width: 1240px; margin-inline: auto; }
.container > *, .hero-grid > *, .section-heading > *, .system-grid > *, .contact-grid > * { min-width: 0; }
.icon { width: 22px; height: 22px; flex: 0 0 22px; stroke: currentColor; stroke-width: 1.6; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; pointer-events: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 20px; top: -80px; z-index: 200; padding: 12px 24px; color: #fff; background: var(--navy); }
.skip-link:focus { top: 12px; }

/* Clear, compact navigation keeps the company's identity in the foreground. */
.site-header { position: sticky; top: 0; z-index: 50; height: 96px; background: rgba(255, 255, 255, .97); border-bottom: 1px solid rgba(224, 230, 238, .72); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; flex-direction: column; gap: 10px; flex-shrink: 0; }
.brand img { width: 239px; height: auto; }
.brand > span { color: #64758a; font-size: 10.5px; line-height: 1.2; letter-spacing: .035em; }
.site-nav { display: flex; align-items: center; gap: 36px; }
.site-nav > a { font-size: 14px; font-weight: 550; white-space: nowrap; transition: color .2s; }
.site-nav > a:hover, .site-nav > a.is-current { color: var(--blue); }
.site-nav > .nav-contact { display: inline-flex; align-items: center; gap: 21px; padding: 12px 19px; color: #fff; background: var(--navy); font-weight: 500; }
.site-nav > .nav-contact:hover, .site-nav > .nav-contact.is-current { color: #fff; background: #214e86; }
.nav-contact .icon { width: 18px; height: 18px; flex-basis: 18px; }
.menu-toggle { display: none; }

/* The first view pairs a short statement with a bespoke systems illustration. */
.hero { background: #f4f7fb; overflow: clip; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 24px; min-height: 571px; align-items: center; padding-top: 40px; padding-bottom: 34px; }
.hero-copy { position: relative; z-index: 1; padding-top: 4px; }
.eyebrow { color: var(--blue); font-size: 11px; font-weight: 650; line-height: 1.5; letter-spacing: .145em; }
.hero-copy .eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; font-size: 11px; letter-spacing: .12em; }
.cross-mark { position: relative; display: inline-block; width: 12px; height: 12px; flex: 0 0 12px; }
.cross-mark::before, .cross-mark::after { content: ""; position: absolute; background: var(--blue); }
.cross-mark::before { width: 12px; height: 2px; top: 5px; left: 0; }
.cross-mark::after { width: 2px; height: 12px; top: 0; left: 5px; }
.hero h1 { font-size: clamp(34px, 3.5vw, 52px); font-weight: 680; line-height: 1.34; letter-spacing: -.052em; }
.hero h1 > span { color: var(--blue); }
.hero-description { margin-top: 25px; color: var(--muted); font-size: 16px; font-weight: 400; line-height: 1.9; letter-spacing: -.025em; word-break: keep-all; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 23px; margin-top: 33px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 21px; min-height: 52px; padding: 13px 23px; border: 1px solid transparent; font-size: 14px; font-weight: 550; line-height: 1.5; transition: background .2s, transform .2s; }
.button-primary { color: #fff; background: var(--navy); }
.button-primary:hover { background: #23518a; transform: translateY(-1px); }
.button .icon { width: 19px; height: 19px; flex-basis: 19px; }
.text-link { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--text); font-size: 13px; font-weight: 550; }
.text-link .icon { width: 19px; height: 19px; flex-basis: 19px; transition: transform .2s; }
.text-link:hover .icon { transform: translateX(4px); }
.hero-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 13px; margin-top: 42px; color: #6d7e92; font-size: 9px; letter-spacing: .11em; font-weight: 550; }
.hero-tags i { width: 2px; height: 2px; background: #8ea3bb; border-radius: 50%; }
.hero-visual { position: relative; align-self: center; padding-top: 12px; }
.visual-heading { display: flex; align-items: center; gap: 8px; color: #56728f; font-size: 8px; font-weight: 650; letter-spacing: .1em; }
.small-dot { width: 5px; height: 5px; border-radius: 50%; background: #6998c5; flex: 0 0 5px; }
.visual-index { margin-left: auto; color: #8b9aab; font-size: 8px; }
.scene-wrap { position: relative; }
.scene-word { position: absolute; left: 4%; top: 1%; color: #e7edf5; font-size: clamp(60px, 7.2vw, 106px); line-height: 1; font-weight: 750; letter-spacing: -.045em; pointer-events: none; }
.hero-scene { position: relative; width: 100%; height: auto; aspect-ratio: 760 / 600; object-fit: contain; }
.hero-visual figcaption { display: flex; justify-content: space-between; gap: 10px; padding-top: 12px; border-top: 1px solid #dbe4ef; color: #7b8a9a; font-size: 9px; line-height: 1.5; }
.hero-visual figcaption span:last-child { color: #94a0ae; }
.hero-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 58px; border-top: 1px solid #dfe6ef; color: #728197; font-size: 10px; letter-spacing: .01em; }
.hero-bottom > span { display: flex; align-items: center; gap: 9px; }
.line-dot { width: 5px; height: 5px; border: 1px solid #7b98b8; border-radius: 50%; }
.hero-bottom > a { display: flex; align-items: center; gap: 17px; font-size: 8px; letter-spacing: .13em; }
.hero-bottom > a > span { font-size: 19px; line-height: 1; }

/* Official brand artwork accompanies the user's stated DT service scope. */
.brands-section { padding: 37px 0 35px; border-bottom: 1px solid var(--line); }
.brands-intro { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 31px; }
.brands-intro h2 { color: #53677e; font-size: 12px; font-weight: 550; letter-spacing: -.01em; }
.brands-intro > span { font-size: 10px; color: #8c98a6; }
.brand-list { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); align-items: center; }
.brand-list li { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 0 18px; border-right: 1px solid #e4e9f0; text-align: center; }
.brand-list li:last-child { border: 0; }
.brand-logo-frame { display: flex; align-items: center; justify-content: center; width: 100%; height: 72px; }
.brand-logo { display: block; height: auto; max-width: 100%; max-height: 64px; object-fit: contain; }
.brand-logo-starbucks { width: 64px; }
.brand-logo-burgerking { width: 61px; }
.brand-logo-ediya { width: 132px; }
.brand-logo-paiks { width: 142px; }
.brand-logo-hollys { width: 66px; }
.brand-list span { color: #637082; font-size: 11px; font-weight: 550; }
.brands-note { margin-top: 24px; color: #8995a3; font-size: 10px; text-align: center; word-break: keep-all; }

/* DT service scopes and a dedicated software development area. */
.section { padding: 100px 0; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 42px; }
.section-heading .eyebrow { margin-bottom: 16px; }
.section-heading h2 { font-size: clamp(29px, 2.6vw, 35px); line-height: 1.42; font-weight: 650; letter-spacing: -.045em; }
.section-heading > p { color: var(--muted); font-size: 14px; line-height: 1.85; letter-spacing: -.02em; padding-bottom: 4px; word-break: keep-all; }
.service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.service-card { display: flex; flex-direction: column; min-width: 0; padding: 30px 30px 25px; background: #f6f8fb; border: 1px solid #edf1f6; transition: border-color .2s, background .2s; }
.service-card:hover { border-color: #c4d6eb; background: #f2f6fb; }
.service-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 32px; }
.service-top > span { color: #92a1b2; font-size: 11px; letter-spacing: .05em; }
.service-icon { width: 42px; height: 42px; fill: none; stroke: #3c73b1; stroke-width: 1.55; stroke-linejoin: round; stroke-linecap: round; }
.service-en { color: #6c8aac; font-size: 9px; line-height: 1.4; letter-spacing: .14em; font-weight: 600; }
.service-card h3 { margin-top: 9px; font-size: 23px; font-weight: 630; line-height: 1.45; letter-spacing: -.045em; }
.service-description { margin-top: 19px; color: var(--muted); font-size: 14px; line-height: 1.85; word-break: keep-all; }
.service-card ul { display: flex; flex-direction: column; gap: 8px; margin-top: 22px; padding-top: 22px; border-top: 1px solid #dde6ef; color: #5f7289; font-size: 12px; letter-spacing: -.01em; }
.service-card li { position: relative; padding-left: 12px; }
.service-card li::before { content: ""; position: absolute; left: 0; top: .73em; width: 3px; height: 3px; background: #7d9bbd; }
.service-link { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 44px; margin-top: auto; padding-top: 26px; color: var(--navy); font-size: 12px; font-weight: 550; }
.service-link .icon { width: 18px; height: 18px; flex-basis: 18px; }

.development-panel { display: grid; grid-template-columns: .85fr 1.6fr; gap: 48px; margin-top: 20px; padding: 36px 38px; background: #eef4fb; border: 1px solid #d5e1ef; }
.development-panel > * { min-width: 0; }
.development-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.development-heading .service-en { margin-top: 4px; color: #506a87; }
.development-heading h3 { margin-top: 16px; font-size: 27px; line-height: 1.45; font-weight: 630; letter-spacing: -.045em; }
.development-heading .service-icon { flex: 0 0 42px; }
.development-content > p { color: #4f6681; font-size: 14px; line-height: 1.9; word-break: keep-all; }
.development-content > p + p { margin-top: 9px; }
.development-projects { margin-top: 25px; }
.projects-label { color: #506a87; font-size: 11px; font-weight: 550; }
.project-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 12px; }
.project-list li { min-width: 0; border-top: 1px solid #c9d8e9; padding-top: 15px; }
.project-status { display: inline-flex; align-items: center; gap: 6px; color: #3d6eaa; font-size: 10px; font-weight: 550; }
.project-status::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: currentColor; }
.project-list h4 { margin: 7px 0 0; color: var(--navy); font-size: 18px; font-weight: 600; line-height: 1.5; letter-spacing: -.035em; word-break: keep-all; overflow-wrap: break-word; }
.project-list p { margin-top: 5px; color: #506a87; font-size: 11px; }
.development-link { display: inline-flex; align-items: center; gap: 18px; min-height: 44px; margin-top: 16px; color: var(--navy); font-size: 12px; font-weight: 550; }
.development-link .icon { width: 18px; height: 18px; flex-basis: 18px; }
.development-link:hover { color: var(--blue); }

/* The explorer is a concise explanation with accessible, real tab controls. */
.system-section { padding: 92px 0 88px; background: #102d54; color: #fff; }
.system-grid { display: grid; grid-template-columns: .9fr 1.2fr; align-items: center; gap: 72px; }
.system-copy .eyebrow { color: #8eb6df; margin-bottom: 21px; font-size: 10px; }
.system-copy h2 { font-size: clamp(29px, 2.7vw, 36px); line-height: 1.45; letter-spacing: -.045em; font-weight: 620; }
.system-copy h2 > span { color: #9dc5ec; }
.system-copy > p:not(.eyebrow) { margin-top: 24px; color: #abbdd2; max-width: 390px; font-size: 14px; line-height: 1.9; word-break: keep-all; }
.text-link-light { color: #dbe8f6; margin-top: 27px; font-size: 12px; }
.system-explorer { min-width: 0; padding: 25px 30px 19px; background: rgba(255, 255, 255, .035); border: 1px solid #385273; }
.system-tabs { display: flex; align-items: stretch; border-bottom: 1px solid #3d5676; gap: 7px; }
.system-tab { position: relative; flex: 1 1 0; min-width: 0; margin: 0; border: 0; padding: 10px 3px 17px; color: #9baec5; background: transparent; font-size: 12px; font-weight: 450; line-height: 1.6; word-break: keep-all; overflow-wrap: break-word; }
.system-tab::after { position: absolute; content: ""; left: 0; right: 0; bottom: -1px; height: 2px; background: transparent; }
.system-tab[aria-selected="true"] { color: #fff; font-weight: 600; }
.system-tab[aria-selected="true"]::after { background: #99c5ee; }
.system-tab:hover { color: #e2effb; }
.system-panel { min-height: 278px; }
.system-panel[hidden] { display: none !important; }
.connection-flow { display: grid; grid-template-columns: minmax(0, 1fr) 32px minmax(0, 1fr) 32px minmax(0, 1fr); align-items: center; column-gap: 3px; padding: 35px 0 28px; }
.connection-flow > div { min-width: 0; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.connection-flow > div > svg { width: 42px; height: 42px; fill: none; stroke: #b5d2ed; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.connection-flow > div > span { color: #aabed4; font-size: 10px; line-height: 1.5; text-align: center; word-break: keep-all; }
.connection-line { display: block; position: relative; height: 1px; margin-bottom: 28px; background: repeating-linear-gradient(to right, #5a81aa 0 3px, transparent 3px 6px); }
.connection-line::after { content: ""; position: absolute; top: -2px; right: -1px; width: 5px; height: 5px; border-radius: 50%; background: #87b5df; }
.panel-description { border-top: 1px solid #304e71; padding-top: 20px; }
.panel-description > span { color: #7899bc; font-size: 8px; letter-spacing: .12em; font-weight: 550; }
.panel-description h3 { margin-top: 10px; color: #e5effa; font-size: 19px; line-height: 1.5; font-weight: 550; letter-spacing: -.035em; }
.panel-description > p { margin-top: 9px; color: #a7bbd2; font-size: 12px; line-height: 1.85; word-break: keep-all; }
.system-note { margin-top: 15px; padding-top: 15px; border-top: 1px solid #304e71; color: #829ab6; font-size: 9px; line-height: 1.8; word-break: keep-all; }

.process-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 53px; }
.process-list li { position: relative; padding: 26px 24px 0 0; border-top: 1px solid #d1dce9; }
.process-list li::before { content: ""; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; border: 2px solid #497eb9; background: #fff; border-radius: 50%; }
.step-number { color: #8baace; font-size: 27px; font-weight: 350; line-height: 1.3; letter-spacing: -.04em; }
.process-list h3 { margin-top: 20px; font-size: 19px; font-weight: 600; line-height: 1.5; letter-spacing: -.035em; }
.process-list p { margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.85; letter-spacing: -.02em; word-break: keep-all; }

/* Direct, working contact actions are the principal conversion point. */
.contact-section { padding: 84px 0 80px; background: #eef4fb; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 105px; }
.contact-copy .eyebrow { margin-bottom: 19px; }
.contact-copy h2 { font-size: clamp(29px, 2.7vw, 36px); line-height: 1.45; font-weight: 650; letter-spacing: -.045em; }
.contact-copy > p:not(.eyebrow) { color: #6d7f94; font-size: 14px; line-height: 1.9; margin-top: 22px; letter-spacing: -.02em; word-break: keep-all; }
.contact-identity { display: flex; align-items: center; gap: 14px; margin-top: 43px; }
.contact-identity img { width: 40px; height: 40px; }
.contact-identity > div { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.contact-identity strong { color: #3c5878; font-size: 14px; font-weight: 600; }
.contact-identity span { color: #8294a9; font-size: 7px; letter-spacing: .07em; }
.contact-details { padding-top: 5px; }
.contact-label { display: block; color: #70849c; font-size: 11px; line-height: 1.5; }
.contact-phone > a { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 10px; color: var(--navy); font-size: clamp(28px, 3vw, 40px); line-height: 1.3; font-weight: 570; letter-spacing: -.035em; white-space: nowrap; }
.contact-phone > a > .icon { width: 29px; height: 29px; flex-basis: 29px; stroke-width: 1.4; }
.phone-actions, .address-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin-top: 16px; }
.phone-actions a, .phone-actions button, .address-actions a, .address-actions button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 3px 0; min-height: 36px; border: 0; background: transparent; color: #526e90; font-size: 11px; line-height: 1.6; }
.phone-actions .icon, .address-actions .icon { width: 15px; height: 15px; flex-basis: 15px; }
.phone-actions a:hover, .phone-actions button:hover, .address-actions a:hover, .address-actions button:hover { color: #143f76; }
.address-actions .small-icon { width: 13px; height: 13px; flex-basis: 13px; }
.contact-address { margin-top: 26px; border-top: 1px solid #d3deeb; padding-top: 25px; }
.contact-address address { margin-top: 10px; color: #3b587b; font-style: normal; font-size: 15px; line-height: 1.9; word-break: keep-all; }
.address-actions { margin-top: 9px; }

.site-footer { padding: 32px 0; background: #fff; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.footer-inner > div:first-child > img { width: 169px; height: auto; }
.footer-inner > div:first-child > p { margin-top: 13px; color: #94a0ae; font-size: 8px; letter-spacing: .01em; }
.footer-info { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; color: #7d8b9c; font-size: 10px; }
.footer-info > span:first-child { color: #5c718a; font-weight: 550; }
.back-top { display: flex; align-items: center; gap: 18px; color: #72849a; font-size: 9px; letter-spacing: .1em; }
.back-top > span { font-size: 20px; }
.mobile-call { display: none; }
.toast { position: fixed; left: 50%; bottom: 30px; z-index: 100; transform: translate(-50%, 12px); width: max-content; max-width: calc(100% - 40px); padding: 13px 22px; background: #143761; color: #fff; border: 1px solid #446385; box-shadow: 0 6px 24px #102d5426; border-radius: 4px; text-align: center; font-size: 13px; line-height: 1.6; opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .2s, transform .2s, visibility .2s; }
.toast.visible { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.copy-dialog { width: min(440px, calc(100% - 40px)); max-height: calc(100% - 50px); padding: 30px; border: 1px solid #d2dfed; border-radius: 6px; color: var(--text); background: #fff; box-shadow: 0 20px 80px #0c2c5340; }
.copy-dialog::backdrop { background: #102d5480; }
.copy-dialog h2 { font-size: 21px; font-weight: 650; }
.copy-dialog p { margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.copy-dialog textarea { display: block; width: 100%; min-height: 112px; margin: 20px 0; padding: 12px; color: #2d4a6c; background: #f4f7fb; border: 1px solid #cbd9e8; font-size: 15px; line-height: 1.8; resize: vertical; }
.copy-dialog .button { width: 100%; }

@media (min-width: 1600px) {
  .hero-grid { min-height: 600px; }
}

@media (max-width: 1100px) {
  .site-nav { gap: 24px; }
  .site-nav > a { font-size: 13px; }
  .brand img { width: 215px; }
  .brand > span { font-size: 9px; }
  .hero-grid { min-height: 530px; gap: 20px; }
  .hero-description { font-size: 14px; }
  .hero-actions { gap: 14px; }
  .hero-actions .button { gap: 14px; padding-inline: 18px; font-size: 12px; }
  .hero-actions .text-link { font-size: 11px; gap: 6px; }
  .hero-tags { gap: 9px; font-size: 8px; }
  .service-card { padding: 25px 23px 22px; }
  .service-card h3 { font-size: 20px; }
  .service-description { font-size: 13px; }
  .service-card ul { font-size: 11px; }
  .development-panel { grid-template-columns: .8fr 1.6fr; padding: 30px; gap: 32px; }
  .development-heading h3 { font-size: 24px; }
  .development-heading .service-icon { width: 34px; height: 34px; flex-basis: 34px; }
  .development-content > p { font-size: 13px; }
  .project-list h4 { font-size: 16px; }
  .system-grid { gap: 42px; }
  .system-explorer { padding-inline: 23px; }
  .system-tab { font-size: 11px; }
  .contact-grid { gap: 65px; }
}

@media (max-width: 900px) and (min-width: 701px) {
  .container { width: calc(100% - 64px); }
  .site-header { height: 86px; }
  .header-inner { gap: 18px; }
  .brand img { width: 185px; }
  .brand > span { font-size: 8px; }
  .site-nav { gap: 17px; }
  .site-nav > a { font-size: 12px; }
  .site-nav > .nav-contact { padding: 11px 12px; gap: 10px; }
  .hero h1 { font-size: 31px; }
  .hero-grid { min-height: 490px; }
  .hero-copy .eyebrow { font-size: 9px; margin-bottom: 20px; }
  .hero-description { font-size: 12px; }
  .hero-actions { gap: 9px; margin-top: 24px; }
  .hero-actions .button { padding: 12px 15px; }
  .hero-tags { margin-top: 28px; }
  .hero-visual figcaption { font-size: 8px; }
  .visual-heading, .visual-index { font-size: 7px; letter-spacing: .05em; }
  .section { padding: 76px 0; }
  .section-heading h2 { font-size: 29px; }
  .section-heading > p { font-size: 12px; }
  .service-grid { gap: 13px; }
  .service-card { padding: 23px 18px; }
  .service-top { margin-bottom: 24px; }
  .service-card h3 { font-size: 18px; }
  .service-description { font-size: 12px; }
  .service-card ul { font-size: 10px; }
  .development-panel { grid-template-columns: minmax(0, 1fr); gap: 23px; padding: 28px; }
  .development-heading h3 br { display: none; }
  .development-heading h3 { margin-top: 10px; }
  .system-section { padding: 72px 0; }
  .system-grid { grid-template-columns: .85fr 1.15fr; gap: 28px; }
  .system-copy h2 { font-size: 27px; }
  .system-copy > p:not(.eyebrow) { font-size: 12px; }
  .system-explorer { padding-inline: 17px; }
  .system-tabs { gap: 3px; }
  .system-tab { font-size: 10px; padding-inline: 1px; }
  .connection-flow { grid-template-columns: minmax(0, 1fr) 15px minmax(0, 1fr) 15px minmax(0, 1fr); }
  .connection-flow > div > svg { width: 36px; height: 36px; }
  .connection-flow > div > span { font-size: 8px; }
  .panel-description h3 { font-size: 17px; }
  .panel-description > p { font-size: 11px; }
  .desktop-break { display: none; }
  .process-list h3 { font-size: 16px; }
  .process-list p { font-size: 11px; }
  .contact-grid { gap: 45px; }
  .contact-copy h2 { font-size: 29px; }
  .contact-copy > p:not(.eyebrow) { font-size: 12px; }
  .contact-phone > a { font-size: 29px; }
  .contact-phone > a > .icon { width: 23px; height: 23px; flex-basis: 23px; }
  .contact-address address { font-size: 13px; }
  .footer-info { gap: 15px; font-size: 9px; }
}

@media (max-width: 700px) {
  html { scroll-padding-top: 94px; }
  body { padding-bottom: calc(58px + env(safe-area-inset-bottom, 0px)); }
  .container { width: calc(100% - 40px); max-width: 560px; }
  .site-header { height: 78px; }
  .header-inner { position: relative; gap: 20px; }
  .brand { gap: 8px; }
  .brand img { width: 192px; }
  .brand > span { font-size: 8px; }
  .menu-toggle { position: relative; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 7px; flex: 0 0 44px; width: 44px; height: 44px; margin-right: -8px; border: 0; padding: 8px; background: transparent; }
  .menu-toggle span { display: block; width: 22px; height: 1.5px; background: var(--navy); transition: transform .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4.25px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4.25px) rotate(-45deg); }
  .site-nav { display: none; position: absolute; top: 77px; left: -20px; right: -20px; align-items: stretch; gap: 0; padding: 12px 20px 20px; background: #fff; border-bottom: 1px solid #dce5ef; box-shadow: 0 12px 16px #13386c0a; }
  .site-nav.is-open { display: flex; flex-direction: column; }
  .site-nav > a { padding: 13px 4px; font-size: 14px; }
  .site-nav > .nav-contact { justify-content: space-between; padding: 13px 16px; margin-top: 8px; }
  .hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; min-height: 0; padding-top: 45px; padding-bottom: 27px; }
  .hero-copy { padding: 0; }
  .hero-copy .eyebrow { font-size: 9px; margin-bottom: 20px; gap: 8px; }
  .cross-mark { transform: scale(.8); transform-origin: center; }
  .hero h1 { font-size: clamp(25px, 7.8vw, 42px); line-height: 1.36; letter-spacing: -.05em; font-weight: 660; }
  .hero-description { margin-top: 19px; font-size: clamp(11.5px, 3.1vw, 14px); line-height: 1.9; letter-spacing: -.03em; }
  .hero-actions { gap: 16px; margin-top: 25px; }
  .hero-actions .button { min-height: 48px; gap: 14px; padding: 12px 16px; font-size: 12px; }
  .hero-actions .text-link { font-size: 11px; gap: 6px; }
  .hero-actions .icon { width: 17px; height: 17px; flex-basis: 17px; }
  .hero-tags { margin-top: 26px; font-size: 7px; gap: 10px; }
  .hero-visual { width: 100%; max-width: 500px; margin: 0 auto; padding-top: 8px; }
  .visual-heading { font-size: 7px; gap: 6px; }
  .visual-index { font-size: 6px; }
  .scene-word { top: 5%; font-size: 80px; }
  .hero-scene { width: 100%; margin-top: -6px; }
  .hero-visual figcaption { padding-top: 9px; font-size: 8px; }
  .hero-visual figcaption span:last-child { font-size: 7px; }
  .hero-bottom { min-height: 52px; gap: 12px; font-size: 8px; }
  .hero-bottom > span { gap: 6px; }
  .hero-bottom > a { gap: 7px; font-size: 0; }
  .hero-bottom > a > span { font-size: 20px; }
  .brands-section { padding: 28px 0; }
  .brands-intro { margin-bottom: 23px; gap: 10px; }
  .brands-intro h2 { font-size: 10px; }
  .brands-intro > span { font-size: 8px; }
  .brand-list { row-gap: 22px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .brand-list li { padding-inline: 10px; gap: 9px; }
  .brand-list li:nth-child(3) { border-right: 0; }
  .brand-list li:nth-child(4) { grid-column: 1 / 2; margin-left: 50%; width: 100%; }
  .brand-list li:nth-child(5) { grid-column: 2 / 3; margin-left: 50%; width: 100%; }
  .brand-logo-frame { height: 54px; }
  .brand-logo { max-height: 50px; }
  .brand-logo-starbucks, .brand-logo-burgerking { width: 48px; }
  .brand-logo-ediya { width: 104px; }
  .brand-logo-paiks { width: 112px; }
  .brand-logo-hollys { width: 58px; }
  .brand-list span { font-size: 10px; }
  .brands-note { margin-top: 22px; font-size: 9px; line-height: 1.8; }
  .section { padding: 64px 0; }
  .section-heading { display: block; margin-bottom: 29px; }
  .section-heading .eyebrow { font-size: 9px; margin-bottom: 13px; }
  .section-heading h2 { font-size: clamp(25px, 6.7vw, 31px); line-height: 1.45; }
  .section-heading > p { margin-top: 17px; padding: 0; font-size: 12px; line-height: 1.85; }
  .service-grid { grid-template-columns: minmax(0, 1fr); gap: 15px; }
  .service-card { padding: 25px 25px 19px; }
  .service-top { margin-bottom: 19px; }
  .service-icon { width: 38px; height: 38px; }
  .service-en { font-size: 9px; }
  .service-card h3 { margin-top: 7px; font-size: 22px; }
  .service-description { margin-top: 15px; font-size: 13px; }
  .service-card ul { gap: 7px; margin-top: 18px; padding-top: 18px; font-size: 12px; }
  .service-link { padding-top: 19px; min-height: 45px; font-size: 12px; }
  .development-panel { grid-template-columns: minmax(0, 1fr); gap: 21px; margin-top: 15px; padding: 25px 25px 20px; }
  .development-heading h3 { margin-top: 10px; font-size: 23px; }
  .development-heading .service-icon { width: 38px; height: 38px; flex-basis: 38px; }
  .development-content > p { font-size: 13px; }
  .development-projects { margin-top: 23px; }
  .project-list { grid-template-columns: minmax(0, 1fr); gap: 19px; }
  .project-list h4 { font-size: 18px; }
  .development-link { margin-top: 15px; }
  .system-section { padding: 61px 0 55px; }
  .system-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .system-copy .eyebrow { font-size: 9px; margin-bottom: 17px; }
  .system-copy h2 { font-size: clamp(26px, 6.8vw, 32px); line-height: 1.45; }
  .system-copy > p:not(.eyebrow) { margin-top: 19px; max-width: none; font-size: 13px; line-height: 1.9; }
  .text-link-light { font-size: 11px; margin-top: 17px; }
  .system-explorer { padding: 17px 18px 15px; }
  .system-tabs { gap: 4px; }
  .system-tab { min-height: 48px; padding: 6px 2px 13px; font-size: 10px; }
  .system-panel { min-height: 264px; }
  .connection-flow { grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr); column-gap: 2px; padding: 27px 0 25px; }
  .connection-flow > div { gap: 12px; }
  .connection-flow > div > svg { width: 36px; height: 36px; }
  .connection-flow > div > span { font-size: 8px; }
  .connection-line { margin-bottom: 23px; }
  .panel-description { padding-top: 16px; }
  .panel-description > span { font-size: 7px; }
  .panel-description h3 { margin-top: 8px; font-size: 17px; }
  .panel-description > p { font-size: 11px; line-height: 1.85; }
  .desktop-break { display: none; }
  .system-note { font-size: 8px; margin-top: 10px; padding-top: 13px; }
  .process-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 31px 20px; margin-top: 35px; }
  .process-list li { padding: 20px 0 0; }
  .step-number { font-size: 24px; }
  .process-list h3 { margin-top: 12px; font-size: 16px; }
  .process-list p { margin-top: 9px; font-size: 11px; }
  .process-list p br { display: none; }
  .contact-section { padding: 58px 0; }
  .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 37px; }
  .contact-copy .eyebrow { font-size: 9px; margin-bottom: 15px; }
  .contact-copy h2 { font-size: clamp(26px, 6.8vw, 32px); }
  .contact-copy > p:not(.eyebrow) { margin-top: 18px; font-size: 13px; line-height: 1.85; }
  .contact-identity { margin-top: 25px; gap: 12px; }
  .contact-identity img { width: 34px; height: 34px; }
  .contact-identity strong { font-size: 13px; }
  .contact-identity span { font-size: 6.5px; }
  .contact-details { padding-top: 0; }
  .contact-label { font-size: 10px; }
  .contact-phone > a { font-size: clamp(28px, 8.4vw, 40px); gap: 10px; }
  .contact-phone > a > .icon { width: 25px; height: 25px; flex-basis: 25px; }
  .phone-actions, .address-actions { gap: 24px; margin-top: 13px; }
  .phone-actions a, .phone-actions button, .address-actions a, .address-actions button { min-height: 40px; font-size: 12px; }
  .contact-address { margin-top: 23px; padding-top: 24px; }
  .contact-address address { font-size: 13px; line-height: 1.9; }
  .address-actions { margin-top: 7px; }
  .site-footer { padding: 29px 0 26px; }
  .footer-inner { flex-wrap: wrap; gap: 19px 20px; align-items: flex-start; }
  .footer-inner > div:first-child { flex: 1 1 auto; }
  .footer-inner > div:first-child > img { width: 155px; }
  .footer-inner > div:first-child > p { margin-top: 11px; font-size: 7px; }
  .footer-info { order: 3; width: 100%; gap: 18px; font-size: 9px; }
  .back-top { margin-left: auto; gap: 12px; font-size: 8px; }
  .mobile-call { position: fixed; z-index: 60; left: 0; right: 0; bottom: 0; display: flex; align-items: center; justify-content: center; gap: 12px; min-height: calc(58px + env(safe-area-inset-bottom, 0px)); padding: 16px 20px calc(16px + env(safe-area-inset-bottom, 0px)); color: #fff; background: var(--navy); border-top: 1px solid #47628a; font-size: 13px; font-weight: 550; line-height: 1.7; box-shadow: 0 -4px 16px #102d5410; }
  .mobile-call .icon { width: 19px; height: 19px; flex-basis: 19px; }
  .mobile-call > .icon:last-child { position: absolute; right: 20px; }
  .toast { bottom: calc(83px + env(safe-area-inset-bottom, 0px)); font-size: 12px; padding: 12px 18px; }
  .copy-dialog { padding: 23px; }
}

@media (max-width: 360px) {
  .brand img { width: 176px; }
  .brand > span { font-size: 7px; }
  .hero-actions { gap: 11px; }
  .hero-actions .button { padding-inline: 13px; font-size: 10px; gap: 10px; }
  .hero-actions .text-link { font-size: 9px; }
  .hero-tags { gap: 7px; font-size: 6px; }
  .visual-heading { font-size: 6px; }
  .visual-index { font-size: 5px; }
  .hero-visual figcaption { font-size: 7px; }
  .hero-visual figcaption span:last-child { font-size: 6px; }
  .service-card { padding-inline: 21px; }
  .development-panel { padding-inline: 21px; }
  .development-heading h3 { font-size: 21px; }
  .system-explorer { padding-inline: 12px; }
  .system-tab { font-size: 9px; }
  .connection-flow > div > span { font-size: 7px; }
  .panel-description h3 { font-size: 16px; }
  .process-list { gap: 28px 14px; }
  .process-list h3 { font-size: 14px; }
  .process-list p { font-size: 10px; }
  .contact-phone > a { font-size: 28px; }
  .contact-phone > a > .icon { width: 21px; height: 21px; flex-basis: 21px; }
  .contact-address address { font-size: 12px; }
  .mobile-call { font-size: 11px; gap: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media print {
  .site-header { position: static; }
  .site-nav, .menu-toggle, .hero-bottom, .hero-actions, .service-link, .text-link, .back-top, .mobile-call, .toast, .copy-dialog, .phone-actions, .address-actions { display: none !important; }
  body { padding-bottom: 0; }
  .container { width: 100%; }
  .section, .system-section, .contact-section { padding: 32px 0; }
  .service-card, .contact-details, .process-list li { break-inside: avoid; }
  .system-section { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
}