:root {
  --navy: #0d1b2f;
  --navy-2: #152841;
  --ink: #132036;
  --gray: #687386;
  --line: #dfe3e8;
  --warm: #f5f3ef;
  --gold: #b79a63;
  --white: #fff;
  --container: 1220px;
  --header: 76px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header);
  text-rendering: optimizeLegibility;
}
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR",
    "Malgun Gothic", Arial, sans-serif;
  font-weight: 400;
  line-height: 1.7;
  word-break: keep-all;
  font-kerning: normal;
  font-synthesis: none;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
}
.container {
  width: min(calc(100% - 48px), var(--container));
  margin: auto;
}
.section {
  padding: 120px 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}
.skip {
  position: fixed;
  top: -60px;
  left: 20px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--navy);
  color: #fff;
}
.skip:focus {
  top: 10px;
}
.header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header);
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(12px);
  transition: 0.25s;
}
.header.scrolled {
  border-color: var(--line);
  box-shadow: 0 5px 20px rgba(13, 27, 47, 0.04);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.wordmark strong,
.brand-label b {
  font-family: Elephant, "Bookman Old Style", Georgia, serif;
  font-weight: normal;
  letter-spacing: 0.025em;
}
.wordmark strong {
  font-size: 1.28rem;
}
.wordmark span {
  margin-top: 5px;
  color: var(--gray);
  font-size: 0.66rem;
  letter-spacing: 0.09em;
}
.header nav {
  display: flex;
  align-items: center;
  gap: 30px;
  height: 100%;
}
.header nav a {
  position: relative;
  padding: 26px 0 22px;
  font-size: 0.84rem;
  font-weight: 600;
}
.header nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 17px;
  height: 2px;
  background: var(--navy);
  transition: right 0.25s;
}
.header nav a:hover::after,
.header nav a:focus-visible::after,
.header nav a.active::after {
  right: 0;
}
.header nav a.active {
  font-weight: 600;
}
.menu-button {
  display: none;
  width: 46px;
  height: 46px;
  padding: 10px;
  border: 0;
  background: none;
}
.menu-button i {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--navy);
}
:focus-visible {
  outline: 3px solid rgba(183, 154, 99, 0.55);
  outline-offset: 4px;
}
.hero {
  min-height: 78vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(
      90deg,
      rgba(248, 249, 250, 0.98) 0%,
      rgba(248, 249, 250, 0.88) 44%,
      rgba(13, 27, 47, 0.12) 100%
    ),
    url("../images/developho-hero-main.jpg.png") 58% 50% / cover no-repeat,
    #f4f6f8;
}
.hero-content {
  padding-block: 100px;
}
.brand-label {
  display: flex;
  flex-direction: column;
  margin: 0 0 34px;
}
.brand-label b {
  font-size: 1.3rem;
}
.brand-label span {
  color: var(--gray);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
}
.hero h1 {
  margin: 0;
  font-size: clamp(3.4rem, 6.2vw, 6rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.02em;
}
.hero-ko {
  margin: 34px 0 0;
  font-size: clamp(1.35rem, 2.15vw, 2rem);
  font-weight: 700;
  line-height: 1.45;
}
.hero-sub {
  margin: 18px 0 30px;
  color: #526075;
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  padding: 10px 18px;
  border: 1px solid var(--navy);
  font-size: 0.87rem;
  font-weight: 700;
}
.button-primary {
  background: var(--navy);
  color: #fff;
}
.button-ghost {
  background: rgba(255, 255, 255, 0.72);
}
.label,
.panel-label,
.sub-label {
  margin: 0;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}
.manifesto-grid {
  display: grid;
  grid-template-columns: 0.6fr 1.4fr;
  gap: 70px;
}
.manifesto h2,
.visual h2,
.journal h2,
.believe h2,
.inquiry h2 {
  margin: 0;
  font-size: clamp(2.35rem, 4.5vw, 4.7rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
}
.lead {
  margin: 34px 0 0;
  color: var(--gray);
  font-size: 1.08rem;
}
.visual {
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  padding: 80px 0;
  color: #fff;
  background-color: var(--navy);
}
.tools-visual {
  background:
    linear-gradient(90deg, rgba(13, 27, 47, 0.9), rgba(13, 27, 47, 0.35)),
    url("../images/developho-tools-bg.jpg.png") 56% 50% / cover no-repeat,
    var(--navy);
}
.systems-visual {
  background:
    linear-gradient(90deg, rgba(13, 27, 47, 0.9), rgba(13, 27, 47, 0.4)),
    url("../images/developho-systems-bg.jpg.png") 54% 50% / cover no-repeat,
    var(--navy);
}
.visual h2 {
  margin: 10px 0 18px;
}
.visual p:last-child {
  color: #e4e8ed;
}
.light {
  color: #d9c59e;
}
.hotel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: stretch;
}
.hotel-copy h3,
.next-area h3,
.product-panel h3,
.business-block h3,
.bridge-panel h3 {
  margin: 12px 0 25px;
  font-size: clamp(2.15rem, 3.7vw, 3.7rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
}
.hotel-copy > p:not(.label) {
  max-width: 580px;
  color: var(--gray);
}
.keyword-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 32px 0;
  padding: 0;
  border-block: 1px solid var(--line);
  list-style: none;
}
.keyword-line li {
  padding: 10px 13px 10px 0;
  margin-right: 13px;
  font-size: 0.78rem;
  font-weight: 600;
}
.text-link {
  display: inline-block;
  margin-top: 24px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--ink);
  font-weight: 600;
}
.analysis-panel,
.product-panel,
.bridge-panel {
  border-radius: 10px;
  background: var(--navy);
  color: #f8f4eb;
}
.analysis-panel {
  padding: 38px;
}
.modules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 28px 0;
  border-top: 1px solid rgba(183, 154, 99, 0.5);
  border-left: 1px solid rgba(183, 154, 99, 0.5);
}
.modules div {
  display: flex;
  min-height: 112px;
  flex-direction: column;
  justify-content: center;
  padding: 18px;
  border-right: 1px solid rgba(183, 154, 99, 0.5);
  border-bottom: 1px solid rgba(183, 154, 99, 0.5);
}
.modules b {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
}
.modules span,
.analysis-panel > p:last-child {
  color: #b6c1cf;
  font-size: 0.83rem;
}
.metrics {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.metrics span {
  color: #dbc79f;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.09em;
}
.next-area {
  margin-top: 120px;
}
.next-area h3 {
  font-size: 2.4rem;
}
.next-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--ink);
}
.next-list article {
  padding: 34px 34px 0 0;
}
.next-list article + article {
  padding-left: 34px;
  border-left: 1px solid var(--line);
}
.next-list span,
.journal-list span {
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.next-list h4 {
  margin: 12px 0;
  font-size: 1.35rem;
}
.next-list p {
  color: var(--gray);
}
.system-stack {
  display: grid;
  gap: 80px;
}
.product-panel,
.bridge-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  padding: 54px;
}
.product-panel p,
.bridge-panel p {
  color: #bdc7d3;
}
.status {
  display: inline-block;
  margin-top: 20px !important;
  padding-top: 14px;
  border-top: 1px solid rgba(183, 154, 99, 0.55);
  color: #e5d6b7 !important;
  font-size: 0.84rem;
}
.service-link {
  display: flex;
  width: max-content;
  min-height: 44px;
  align-items: center;
  margin-top: 18px;
  padding: 9px 0;
  border-bottom: 1px solid #dbc79f;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
}
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  list-style: none;
}
.feature-grid li {
  padding: 16px 10px 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.86rem;
  font-weight: 600;
}
.feature-grid li:nth-child(even) {
  padding-left: 18px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}
.business-block {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 70px;
  padding: 30px 0;
}
.business-block > div > p:not(.label, .sub-label) {
  max-width: 600px;
  color: var(--gray);
}
.sub-label {
  margin-top: 7px;
  color: #8791a0;
}
.light-grid {
  border-color: var(--ink);
}
.light-grid li {
  border-color: var(--line);
}
.light-grid li:nth-child(even) {
  border-color: var(--line);
}
.journal {
  background: var(--warm);
}
.section-head {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  margin-top: 18px;
}
.section-head > p {
  color: var(--gray);
  font-size: 1.05rem;
}
.journal-list {
  margin-top: 70px;
  border-top: 1px solid var(--ink);
}
.journal-list article {
  display: grid;
  grid-template-columns: 70px 120px 1fr 1fr;
  gap: 24px;
  align-items: start;
  padding: 32px 0;
  border-bottom: 1px solid #cbc8c1;
}
.journal-list h3,
.journal-list p {
  margin: 0;
}
.journal-list h3 {
  font-size: 1.2rem;
}
.journal-list h3 a:hover,
.journal-list h3 a:focus-visible {
  color: #7e673d;
}
.journal-list p {
  color: var(--gray);
}
.transition {
  min-height: 480px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(238, 237, 232, 0.3), rgba(13, 27, 47, 0.38)),
    url("../images/developho-transition-banner.jpg.png") center/cover no-repeat,
    #dfe4e8;
}
.transition .container {
  display: flex;
  justify-content: flex-end;
}
.transition p {
  margin: 0 5vw 0 0;
  color: #fff;
  font-size: clamp(2.6rem, 5vw, 5rem);
  font-weight: 300;
  line-height: 1.02;
  letter-spacing: 0.08em;
}
.believe-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 80px;
  align-items: stretch;
}
.believe-image {
  min-height: 760px;
  background:
    linear-gradient(145deg, rgba(237, 235, 229, 0.2), rgba(13, 27, 47, 0.18)),
    url("../images/developho-about-bg.jpg.png") 39% 50% / cover no-repeat,
    #e8e8e4;
}
.believe h2 {
  margin: 14px 0 35px;
  font-size: clamp(2.2rem, 3.8vw, 3.8rem);
}
.believe > div > div > p:not(.label) {
  color: var(--gray);
}
.principles {
  margin: 38px 0;
}
.principles div {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.principles dt {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
}
.principles dt span {
  margin-left: 14px;
  color: var(--gold);
  letter-spacing: 0;
}
.principles dd {
  margin: 6px 0 0;
  color: var(--gray);
  font-size: 0.86rem;
}
.closing {
  display: block;
  margin-top: 40px;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
}
.inquiry {
  padding: 110px 0;
  background: var(--navy);
  color: #fff;
}
.inquiry-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 80px;
}
.inquiry h2 {
  margin: 14px 0 28px;
}
.inquiry p:not(.panel-label) {
  max-width: 590px;
  color: #bdc7d3;
}
.inquiry-message {
  margin-top: 30px;
}
.inquiry-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  margin-top: 14px;
  border-bottom: 1px solid #dfcba4;
  color: #dfcba4;
  font-weight: 700;
}
.inquiry ul {
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  list-style: none;
}
.inquiry li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}
footer {
  padding: 52px 0 30px;
  background: #091424;
  color: #fff;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) auto;
  gap: 22px 45px;
}
.inverse span,
.inverse p {
  color: #9eabba;
}
.inverse p {
  font-size: 0.84rem;
  line-height: 1.7;
}
.footer-grid nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  align-content: start;
  grid-column: 2;
  grid-row: 1 / span 2;
  justify-content: flex-end;
  max-width: 440px;
}
.footer-grid nav a {
  font-size: 0.77rem;
}
.business-info {
  grid-column: 1;
  display: flex;
  gap: 10px 28px;
  flex-wrap: wrap;
  color: #9eabba;
  font-size: 0.8rem;
}
.business-info a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}
.business-info a:hover,
.business-info a:focus-visible {
  color: #fff;
}
.copyright {
  grid-column: 1/-1;
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #8190a3;
  font-size: 0.72rem;
}

/* Journal */
.journal-page-main { background: var(--warm); }
.journal-hero { padding: 100px 0 64px; }
.journal-hero h1 { max-width: 900px; margin: 12px 0 22px; font-size: clamp(2.6rem, 5vw, 5rem); line-height: 1.16; letter-spacing: -.025em; }
.journal-hero .lead { max-width: 720px; margin-top: 0; }
.back-link { display: inline-flex; min-height: 44px; align-items: center; margin-top: 24px; border-bottom: 1px solid var(--ink); font-weight: 700; }
.journal-index-list { padding: 0 0 100px; }
.journal-card { display: grid; grid-template-columns: 130px 1fr auto; gap: 32px; padding: 34px 0; border-top: 1px solid #cbc8c1; }
.journal-card:last-child { border-bottom: 1px solid #cbc8c1; }
.journal-card h2 { margin: 0 0 10px; font-size: 1.55rem; line-height: 1.4; }
.journal-card p { max-width: 680px; margin: 0; color: var(--gray); }
.journal-card time, .article-meta { color: var(--gray); font-size: .82rem; }
.article-wrap { width: min(calc(100% - 48px), 780px); margin: auto; padding: 90px 0 110px; }
.article-wrap h1 { margin: 14px 0 20px; font-size: clamp(2.45rem, 5vw, 4.5rem); line-height: 1.17; letter-spacing: -.025em; }
.article-meta { display: flex; gap: 10px 20px; flex-wrap: wrap; padding-bottom: 34px; border-bottom: 1px solid #cbc8c1; }
.article-body { padding-top: 30px; color: #26354a; font-size: 1.05rem; line-height: 1.95; }
.article-body h2 { margin: 48px 0 14px; color: var(--ink); font-size: 1.65rem; line-height: 1.45; }
.article-body p { margin: 0 0 24px; }
.article-nav { margin-top: 60px; padding-top: 25px; border-top: 1px solid #cbc8c1; }
@media (max-width: 900px) {
  .header nav {
    position: absolute;
    top: var(--header);
    left: 0;
    right: 0;
    display: none;
    height: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 24px 20px;
    border-bottom: 1px solid var(--line);
    background: #fff;
  }
  .header nav.open {
    display: flex;
  }
  .header nav a {
    padding: 13px 0;
  }
  .header nav a::after {
    bottom: 8px;
  }
  .menu-button {
    display: block;
  }
  .section {
    padding: 90px 0;
  }
  .manifesto-grid,
  .hotel-grid,
  .product-panel,
  .business-block,
  .bridge-panel,
  .believe-grid,
  .inquiry-grid {
    grid-template-columns: 1fr;
  }
  .manifesto-grid,
  .hotel-grid,
  .product-panel,
  .business-block,
  .bridge-panel,
  .believe-grid,
  .inquiry-grid {
    gap: 45px;
  }
  .product-panel,
  .bridge-panel {
    padding: 38px;
  }
  .believe-image {
    min-height: 480px;
  }
  .journal-list article {
    grid-template-columns: 55px 100px 1fr;
  }
  .journal-list p {
    grid-column: 3;
  }
  .visual {
    min-height: 360px;
  }
  .hero {
    min-height: 720px;
  }
}
@media (max-width: 620px) {
  .container {
    width: min(calc(100% - 30px), var(--container));
  }
  .hero {
    min-height: 680px;
    background-position: 62% 50%;
  }
  .hero-content {
    padding-block: 72px;
  }
  .hero h1 {
    font-size: clamp(3.1rem, 14vw, 4.3rem);
  }
  .hero-ko {
    font-size: 1.28rem;
  }
  .section {
    padding: 72px 0;
  }
  .manifesto-grid {
    gap: 24px;
  }
  .manifesto h2,
  .visual h2,
  .journal h2,
  .believe h2,
  .inquiry h2 {
    font-size: 2.25rem;
  }
  .visual {
    min-height: 330px;
    padding: 58px 0;
  }
  .tools-visual,
  .systems-visual {
    background-position: 58% 50%;
  }
  .analysis-panel {
    padding: 25px;
  }
  .modules {
    grid-template-columns: 1fr;
  }
  .next-area {
    margin-top: 80px;
  }
  .next-list {
    grid-template-columns: 1fr;
  }
  .next-list article + article {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .product-panel,
  .bridge-panel {
    padding: 27px 22px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid li:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }
  .section-head {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .journal-list article {
    grid-template-columns: 45px 1fr;
    gap: 10px 16px;
  }
  .journal-list h3,
  .journal-list p {
    grid-column: 2;
  }
  .transition {
    min-height: 350px;
    background-position: 58% 50%;
  }
  .transition p {
    margin-right: 0;
  }
  .believe-image {
    min-height: 360px;
    background-position: 39% 50%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .business-info {
    grid-column: auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }
  .copyright {
    grid-column: auto;
  }
  .footer-grid nav {
    grid-column: auto;
    grid-row: auto;
    justify-content: flex-start;
    gap: 8px 18px;
    max-width: none;
    order: 3;
  }
  .footer-grid .wordmark { order: 1; }
  .footer-grid .business-info { order: 2; }
  .footer-grid .copyright { order: 4; }
  .footer-grid nav a { display: inline-flex; min-height: 44px; align-items: center; }
  .journal-card { grid-template-columns: 1fr; gap: 8px; }
  .article-wrap { width: min(calc(100% - 30px), 780px); padding: 70px 0 85px; }
  .article-body { font-size: 1rem; line-height: 1.85; }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}