/*
Theme Name: H1roto Portfolio Today
Theme URI: https://h1roto.com/
Description: Dark, lightweight CSS Grid portfolio theme for h1roto.com.
Author: Hiroto Kosaka
Version: 2026.4
License: GNU General Public License v3 or later
Text Domain: h1roto
*/

:root {
  --bg: #232323;
  --bg-soft: #292929;
  --surface: #fff;
  --text: #f4f4f2;
  --muted: #999d9f;
  --line: rgba(255,255,255,.1);
  --accent: #3cc7e8;
  --max: 1560px;
  --gap: clamp(16px, 1.35vw, 24px);
}

* { box-sizing: border-box; }
html { font-size: 62.5%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, "Helvetica Neue", Helvetica, "Noto Sans JP", sans-serif;
  font-size: 1.2rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.site-shell {
  width: min(calc(100% - clamp(28px, 5vw, 96px)), var(--max));
  margin-inline: auto;
}

.site-header {
  min-height: clamp(130px, 13vw, 205px);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-top: clamp(34px, 4.5vw, 68px);
}
.site-logo { display: inline-flex; align-items: center; }
.site-logo__image,
.custom-logo {
  width: auto;
  max-width: min(240px, 38vw);
  max-height: 54px;
  object-fit: contain;
}
.site-logo__text {
  color: #fff;
  font-size: clamp(2rem, 2.2vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -.04em;
}
.site-nav { padding-top: 5px; }
.site-nav__list {
  display: flex;
  gap: clamp(16px, 2vw, 32px);
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav__list li { margin: 0; list-style: none; }
.site-nav__list a {
  position: relative;
  color: #aeb1b3;
  font-size: 1rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  transition: color .2s ease;
}
.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -7px;
  height: 1px;
  background: var(--accent);
  transition: right .2s ease;
}
.site-nav__list a:hover,
.site-nav__list .current-menu-item > a { color: #fff; }
.site-nav__list a:hover::after,
.site-nav__list .current-menu-item > a::after { right: 0; }

.site-content { padding-bottom: 20px; }
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--gap);
}
.portfolio-item { min-width: 0; margin: 0; }
.portfolio-item__link {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--surface);
}
.portfolio-item__media {
  aspect-ratio: 4 / 3;
  margin: 0;
  overflow: hidden;
  background: #fff;
}
.portfolio-item__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s cubic-bezier(.2,.65,.3,1), opacity .35s ease;
}
.portfolio-item__placeholder { display:block; width:100%; height:100%; background:#ecece8; }
.portfolio-item__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(14px, 1.5vw, 22px);
  color: #fff;
  background: linear-gradient(to top, rgba(0,0,0,.78), rgba(0,0,0,0) 62%);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
}

.portfolio-item__category {
  margin-bottom: 5px;
  color: rgba(255,255,255,.72);
  font-size: .78rem;
  line-height: 1.3;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.portfolio-item__title {
  margin: 0;
  font-size: clamp(1.15rem, .95vw, 1.55rem);
  font-weight: 600;
  line-height: 1.35;
}
.portfolio-item__link:hover .portfolio-item__media img { transform: scale(1.025); opacity: .82; }
.portfolio-item__link:hover .portfolio-item__overlay { opacity: 1; transform: none; }

.pagination { margin: clamp(38px, 5vw, 72px) 0 10px; }
.pagination .nav-links { display: flex; align-items: center; gap: 8px; }
.pagination .page-numbers {
  display: inline-grid;
  place-items: center;
  min-width: 32px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: .85rem;
  letter-spacing: .08em;
}
.pagination .page-numbers:hover,
.pagination .current { border-color: #fff; color: #fff; }

.site-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: clamp(38px, 6vw, 82px);
  padding: 24px 0 34px;
  border-top: 1px solid var(--line);
}
.site-footer p { margin: 0; color: #73787a; font-size: .82rem; letter-spacing: .08em; }

/* Single posts and pages */
.single .site-content,
.page .site-content { max-width: 1120px; margin-inline: auto; }
.single .type-post,
.page .type-page { background: #fff; color: #17191b; }
.single .gridly-image img,
.page .gridly-image img { width: 100%; }
.single .gridly-copy,
.page .gridly-copy { padding: clamp(28px, 6vw, 72px); }
.gridly-copy h1 { margin: 0 0 22px; font-size: clamp(2.8rem, 5vw, 5.8rem); line-height: 1.1; }
.gridly-copy p { font-size: clamp(1.35rem, 1.3vw, 1.7rem); line-height: 1.9; }
.gridly-copy a { text-decoration: underline; text-underline-offset: 3px; }
.gridly-category { padding: 16px 0; color: var(--muted); }
.gridly-date { color: #888; font-size: 1rem !important; }
.post-nav { display:flex; justify-content:space-between; gap:16px; margin-top:24px; }
.post-nav a { padding:10px 0; color:#fff; }
.aligncenter { display:block; margin-inline:auto; }
.alignleft { float:left; margin:0 24px 18px 0; }
.alignright { float:right; margin:0 0 18px 24px; }

@media (max-width: 1400px) {
  .portfolio-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
  .portfolio-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .site-header { min-height: 122px; }
  .portfolio-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .portfolio-item__overlay { position: static; opacity: 1; transform: none; background: var(--bg-soft); padding: 12px 13px 14px; }
  .portfolio-item__category { color: var(--muted); }
  .site-logo__image, .custom-logo { max-height: 38px; }
}
@media (max-width: 460px) {
  .site-header { display:block; min-height: 146px; }
  .site-nav { padding-top: 24px; }
  .site-nav__list { gap: 18px; flex-wrap: wrap; }
  .portfolio-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior:auto !important; transition:none !important; }
}