/*
Theme Name: SKTK Contact Portal
Description: Minimal portal and blog theme for sktkcontact.com.
Version: 1.0.0
Author: sujiko inc
Text Domain: sktkcontact-portal
*/

:root {
  --ink: #17201d;
  --body: #3d4744;
  --dim: #66716d;
  --line: #d9dfda;
  --paper: #f7f8f5;
  --accent: #1f5d4c;
  --accent-soft: #e4eee9;
  --content: 860px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
a:focus-visible { outline: 3px solid #8dbdab; outline-offset: 3px; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 245, .94);
}
.site-header__inner, .site-footer__inner, .site-main {
  width: min(calc(100% - 40px), var(--content));
  margin-inline: auto;
}
.site-header__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-brand {
  color: var(--ink);
  font: 700 1.05rem/1 "JetBrains Mono", ui-monospace, monospace;
  text-decoration: none;
  letter-spacing: -.02em;
}
.site-nav { display: flex; gap: 22px; }
.site-nav a {
  color: var(--body);
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
}
.site-nav a:hover { color: var(--accent); }

.site-main { min-height: calc(100vh - 165px); padding-block: 72px 88px; }
.portal-intro { max-width: 720px; margin-bottom: 58px; }
.portal-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font: 500 .78rem/1.4 "JetBrains Mono", ui-monospace, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.portal-intro h1, .page-title {
  margin: 0 0 20px;
  font-size: clamp(2.25rem, 6vw, 4.35rem);
  line-height: 1.12;
  letter-spacing: -.045em;
}
.portal-intro p {
  margin: 0;
  max-width: 42em;
  color: var(--body);
  font-size: 1.08rem;
  line-height: 1.9;
}
.entry-content { color: var(--body); line-height: 1.9; }
.entry-content > * { max-width: 720px; }
.entry-content > .sktk-portal { max-width: none; }

.blog-header { margin-bottom: 46px; }
.blog-header p { margin: 0; color: var(--dim); }
.post-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.post-card { padding: 26px 0; border-bottom: 1px solid var(--line); }
.post-card time { color: var(--dim); font: .78rem/1.5 "JetBrains Mono", ui-monospace, monospace; }
.post-card h2 { margin: 8px 0 10px; font-size: 1.35rem; line-height: 1.45; }
.post-card h2 a { color: var(--ink); text-decoration: none; }
.post-card h2 a:hover { color: var(--accent); }
.post-card p { margin: 0; color: var(--body); line-height: 1.75; }

.site-footer { border-top: 1px solid var(--line); }
.site-footer__inner {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--dim);
  font-size: .8rem;
}
.site-footer a { color: var(--dim); text-decoration: none; }

@media (max-width: 640px) {
  .site-header__inner, .site-footer__inner, .site-main { width: min(calc(100% - 28px), var(--content)); }
  .site-header__inner { min-height: 62px; }
  .site-main { padding-block: 48px 64px; }
  .portal-intro { margin-bottom: 42px; }
  .portal-intro h1, .page-title { font-size: 2.35rem; }
  .site-footer__inner { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 24px; }
}