/*
Theme Name: Superasystem Theme
Description: A minimal doctrine-first WordPress theme for superasystem.com
Version: 0.1
*/

:root{
  --max: 760px;
  --pad: 28px;
  --line: 1.55;
}

*{ box-sizing: border-box; }

html, body{
  margin: 0;
  padding: 0;
}

body{
  font-family: ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  line-height: var(--line);
  color: #111;
  background: #fff;
}

a{
  color: inherit;
  text-decoration: none;
}

a:hover{
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* ===== Header ===== */

.site-header{
  border-bottom: 1px solid #eee;
  background: #fff;
}

.site-header__inner{
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.site-brand__link{
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Nav */

.site-nav__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.site-nav__item{
  margin: 0;
  padding: 0;
}

.site-nav__link{
  font-size: 14px;
  opacity: 0.9;
}

/* Active nav (current page) */
.site-nav__link[aria-current="page"],
.site-nav__link[aria-current="true"]{
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* ===== Main ===== */

.site-main{
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px var(--pad) 64px;
}

h1{
  font-size: 44px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
}

h2{
  font-size: 22px;
  margin: 36px 0 10px;
  letter-spacing: -0.01em;
}

h3{
  font-size: 17px;
  margin: 22px 0 8px;
}

p{
  margin: 0 0 14px;
}

ul, ol{
  margin: 10px 0 16px 20px;
  padding: 0;
}

li{
  margin: 6px 0;
}

/* ===== Doctrine page polish (layout stays in .site-main) ===== */

.doctrine strong{
  font-weight: 700;
}

.doctrine p{
  margin: 0 0 18px;
  line-height: 1.75;
}

.doctrine h2{
  margin: 56px 0 16px;
  letter-spacing: -0.01em;
}

.doctrine h3{
  margin: 28px 0 12px;
}

.doctrine ul{
  margin: 12px 0 20px 20px;
  padding: 0;
}

.doctrine li{
  margin: 10px 0;
  line-height: 1.7;
}

/* 見出し直後の段落が詰まりすぎないように */
.doctrine h2 + p,
.doctrine h3 + p{
  margin-top: 0;
}

/* TOC */
.doctrine-toc{
  margin: 2rem 0 3rem;
  font-size: 0.9rem;
  color: #666;
}

.doctrine-toc ul{
  list-style: none;
  padding: 0;
  margin: 0;
}

.doctrine-toc li{
  margin-bottom: 0.5rem;
}

.doctrine-toc a{
  text-decoration: none;
  color: inherit;
}

.doctrine-toc a:hover{
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* ===== Footer ===== */

.site-footer{
  border-top: 1px solid #eee;
}

.site-footer__inner{
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--pad);
}

.site-footer__text{
  margin: 0;
  font-size: 13px;
  opacity: 0.75;
}

/* ===== Responsive ===== */

@media (max-width: 560px){
  :root{ --pad: 18px; }
  h1{ font-size: 36px; }
  .site-header__inner{ align-items: flex-start; }
  .site-nav__list{ gap: 10px; }
}

/* =========================
   Essays (page-essays.php)
   Simple list
   ========================= */

.essays__lede{
  margin: 6px 0 0;
  opacity: 0.75;
  font-size: 14px;
}

.essays__list{
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.essays__item{
  padding: 18px 0;
  border-top: 1px solid #eee;
}

.essays__item:first-child{
  border-top: 0;
  padding-top: 6px;
}

.essays__title{
  display: inline-block;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.essays__excerpt{
  margin: 8px 0 8px;
  opacity: 0.9;
}

.essays__meta{
  font-size: 13px;
  opacity: 0.65;
}
.post{
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px var(--pad) 64px;
}

.post__title{
  margin: 0 0 14px;
}

.post__lede{
  margin: 0 0 22px;
  opacity: 0.8;
  max-width: 62ch;
}

.post__content{
  max-width: 70ch;
}

.post__content h2{ margin-top: 48px; }
.post__content h3{ margin-top: 28px; }