@charset "UTF-8";

/*
  WEBの実務 — independent editorial identity, subtle kinship with UMIBE.
  Reference: UMIBE's editorial hierarchy and fine rules, not its strong blue background.
  Do NOT import UMIBE's full-screen hero, condensed Japanese typesetting,
  heavy transitions or its one-color brand system. This remains a practical
  publication with accessible reading-focused design.
*/
:root {
  --bg: #FFFFFF;
  --ink: #24303A;
  --green: #294B62; /* muted blue-gray ink, not UMIBE's vivid brand blue */
  --muted: #667580;
  --line: #DCE0E1;
  --soft: #F6F7F7;
  --white: #FFFFFF;
  --orbit-blue: #284C67; /* match the center disc in the main visual */
}
html { scroll-padding-top: 22px; }
body { -webkit-font-smoothing: antialiased; }
a { transition: color .16s ease; }
.eyebrow, .section-kicker {
  font-family: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .13em;
  line-height: 1.4;
  color: var(--green);
}
.site-header { border-color: var(--line); }
.head-row { min-height: 86px; }
.logo strong { font-weight: 760; letter-spacing: -.07em; }
.global-nav { font-weight: 560; gap: 30px; }
.global-nav a { transition: color .16s ease; }
.global-nav a:hover, .global-nav a:focus-visible { color: var(--orbit-blue); }
.nav-button {
  border: 0;
  border-bottom: 1px solid var(--orbit-blue);
  padding: 11px 0 8px;
  font-size: 12px;
  font-weight: 650;
  color: var(--ink);
}
.nav-button:hover { background: none; color: var(--orbit-blue); }
.publisher-ribbon { background: transparent; border-color: var(--line); }
.publisher-ribbon-inner {
  min-height: 39px;
  font: 500 13px/1.2 'Barlow Condensed', 'Arial Narrow', sans-serif;
  letter-spacing: .09em;
  color: #657683;
}
.publisher-ribbon-inner a {
  font-weight: 700;
  color: var(--orbit-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(17,89,168,.42);
}
.publisher-ribbon-inner>span:last-child { color: #64717B; font-weight: 500; }

.hero { padding-top: 112px; padding-bottom: 112px; }
.hero h1 {
  font-weight: 630;
  letter-spacing: -.058em;
  line-height: 1.37;
  margin-top: 26px;
  margin-bottom: 27px;
}
.hero h1 span { color: #214D70; font-weight: 635; }
.hero-lead { color: #53656E; line-height: 2.15; }
.text-link {
  font-weight: 620;
  border-color: #A3B4BE;
}
.text-link:hover, .text-link:focus-visible { color: var(--orbit-blue); border-color: var(--orbit-blue); }
/* Keep the correctly sized orbit. Do not alter width, grid or aspect-ratio. */
.orbit {
  border-color: #C6D3DB;
  background: radial-gradient(circle, #F2F5F5 18%, transparent 75%);
}
.orbit:before, .orbit:after { border-color: #B9C9D5; }
.orbit-center { background: #284C67; font-family: 'Barlow Condensed', 'Arial Narrow', sans-serif; font-weight: 650; letter-spacing: .07em; }
.orbit-center small { font-family: 'Barlow Condensed', 'Arial Narrow', sans-serif; font-size: 10px; }
.orbit-chip {
  border-color: #C5D2D8;
  border-radius: 2px;
  box-shadow: none;
  color: #284C67;
  font-weight: 600;
}
.orbit-dot { background: #7395AD; }

.section-heading { border-color: #A6B0B8; padding-top: 21px; align-items: baseline; }
.section-heading h2 { font-size: clamp(23px,2.45vw,29px); font-weight: 610; letter-spacing: -.045em; }
.section-heading .more { color: #667580; }
.section-heading a.more:hover { color: var(--orbit-blue); }
.start-grid { gap: 26px; margin-top: 33px; margin-bottom: 98px; }
.start-card {
  min-height: 186px;
  border: 0;
  border-top: 1px solid #95A5AF;
  border-bottom: 1px solid var(--line);
  background: transparent;
  padding: 27px 15px 26px 1px;
  transition: border-color .18s ease;
}
.start-card:hover { transform: none; border-top-color: var(--orbit-blue); }
.start-card small {
  font: 600 14px/1.2 'Barlow Condensed', 'Arial Narrow', sans-serif;
  letter-spacing: .09em;
}
.start-card h3 { font-size: 21px; font-weight: 620; margin: 19px 0 14px; letter-spacing: -.042em; }
.start-card p { color: #697782; }
.start-card .arrow { right: 11px; bottom: 20px; color: var(--orbit-blue); }

.feature-grid { gap: 48px; margin-bottom: 108px; }
.feature-art { background: #F5F7F7; }
.feature-art small { font: 600 14px/1 'Barlow Condensed', 'Arial Narrow', sans-serif; letter-spacing: .09em; }
.feature-art strong {
  font-family: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  font-size: clamp(68px,9vw,102px);
  font-weight: 600;
  line-height: .85;
  letter-spacing: -.024em;
  color: #244E6D;
  margin-top: 38px;
}
.feature-art:after { border-color: #CFD9DF; }
.feature-copy h3 { font-weight: 600; letter-spacing: -.04em; }
.feature-copy p { color: #687781; }
.tag, .feature-copy .tag {
  background: transparent;
  border: 1px solid #BECBD2;
  padding: 3px 9px;
  font-weight: 600;
  color: #294B62;
}

.new-guides { padding-bottom: 104px; }
.guide-grid { column-gap: 35px; row-gap: 0; }
.guide-card {
  background: transparent;
  border: 0;
  border-top: 1px solid #9DABB5;
  border-bottom: 1px solid var(--line);
  padding: 28px 14px 28px 0;
  transition: border-color .18s ease;
}
.guide-card:hover { transform: none; border-top-color: var(--orbit-blue); }
.guide-card h3 { font-weight: 610; font-size: 20px; line-height: 1.6; }
.guide-card p { color: #667680; }
.guide-arrow { color: var(--orbit-blue); }

.editorial-band { background: #FFFFFF; border-block: 1px solid var(--line); }
.editorial-grid h2 { letter-spacing: -.045em; }
.editorial-grid p { color: #526570; }
/* A compact publisher credit, not a second brand manifesto. */
.umibe-bridge { background: var(--orbit-blue); padding: 34px 0; }
.umibe-bridge .eyebrow { color: #D0DAE0; }
.umibe-credit { display: flex; align-items: center; gap: 30px; }
.umibe-credit .eyebrow { flex: 0 0 auto; letter-spacing: .12em; font-size: 12px; }
.umibe-credit p { margin: 0; color: #F1F4F5; font-size: 13px; line-height: 1.8; }
.umibe-credit a { color: #F1F4F5; border-bottom: 1px solid #90A5B5; padding-bottom: 3px; font-size: 12px; white-space: nowrap; margin-left: auto; }
.umibe-credit a:hover { color: white; border-color: white; }

.page-intro h1, .article-header h1 { font-weight: 630; }
.list-grid { column-gap: 32px; row-gap: 0; }
.article-card {
  border: 0;
  border-top: 1px solid #92A3AE;
  border-bottom: 1px solid var(--line);
  background: transparent;
  padding: 30px 18px 34px 0;
}
.article-card:hover { border-top-color: var(--orbit-blue); }
.article-card h2 { font-weight: 600; }
.article-header .lead { color: #62717C; }
.article-markdown h2 { border-color: #C8D0D5; }
.article-markdown strong { color: #213F54; }
.article-markdown th { color: #244B67; }
.article-guide-intro {
  background: transparent;
  border: 0;
  border-top: 2px solid #6D8CA3;
  border-bottom: 1px solid var(--line);
  padding: 26px 3px 26px;
}
.article-guide-intro p { color: #5E6C75; }
.article-cta, .article-publisher { background: #EFF2F3; }
.article-publisher { border-color: var(--orbit-blue); }
.article-publisher a:hover { color: var(--orbit-blue); }
.site-footer { background: #FFFFFF; border-top: 1px solid var(--line); }
.foot-row p, .foot-bottom { color: #60717C; }

@media (max-width: 960px) {
  .hero { padding-top: 78px; padding-bottom: 84px; }
}
@media (max-width: 750px) {
  .head-row { min-height: 70px; }
  .publisher-ribbon-inner { font-size: 12px; }
  .hero { padding-top: 59px; padding-bottom: 72px; }
  .hero h1 { line-height: 1.43; }
  .start-grid { gap: 12px; margin: 24px 0 74px; }
  .start-card { min-height: 144px; padding: 18px 14px 18px 0; }
  .start-card h3 { font-size: 19px; margin: 10px 0; }
  .start-card .arrow { bottom: 14px; }
  .feature-grid { gap: 26px; margin-bottom: 75px; }
  .feature-art strong { font-size: clamp(62px,14vw,93px); }
  .new-guides { padding-bottom: 72px; }
  .guide-grid { column-gap: 0; }
  .guide-card { padding: 22px 8px 24px 0; }
  .guide-card h3 { font-size: 19px; }
  .list-grid { column-gap: 0; }
  .article-card { padding: 23px 8px 25px 0; }
  .article-guide-intro { padding: 22px 3px; }
  .umibe-bridge { padding: 27px 0; }
  .umibe-credit { display: grid; grid-template-columns: 1fr; gap: 10px; }
  .umibe-credit p { font-size: 12px; }
  .umibe-credit a { margin: 2px 0 0; justify-self: start; }

}
@media (prefers-reduced-motion: reduce) {
  a, .start-card, .guide-card { transition: none; }
}