/* Tochen child theme — brand chrome + preserved single-post hero */

:root {
  --tochen-navy: #0b1f3a;
  --tochen-navy-600: #091a31;
  --tochen-navy-100: #c5d0e3;
  --tochen-navy-200: #8fa3c7;
  --tochen-navy-300: #5a76ab;
  --tochen-teal: #14b8a6;
  --tochen-teal-300: #56e0cf;
  --tochen-teal-50: #ecfdfb;
  --tochen-bg: hsl(216 45% 98%);
  --tochen-fg: hsl(215 55% 11%);
  --tochen-muted: hsl(215 14% 44%);
  --tochen-border: hsl(214 22% 90%);
  --tochen-radius: 0.75rem;
  --tochen-max: 72rem;
}

body.tochen-theme {
  font-family: "Heebo", system-ui, sans-serif;
  color: var(--tochen-fg);
  background-color: var(--tochen-bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -30%, rgba(20, 184, 166, 0.08), transparent),
    radial-gradient(ellipse 60% 50% at 100% 0%, rgba(11, 31, 58, 0.04), transparent);
}

body.tochen-theme a {
  color: var(--tochen-teal);
}

body.tochen-theme a:hover {
  color: #0d9488;
}

/* Hide default GP site header chrome (we replace it) */
body.tochen-theme .site-header,
body.tochen-theme .main-navigation,
body.tochen-theme .gen-sidebar-nav {
  display: none !important;
}

body.tochen-theme .site-content {
  margin-top: 0;
}

/* ========== Sticky glass header ========== */
.tochen-site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 1rem 1rem 0;
}

.tochen-site-header__bar {
  max-width: var(--tochen-max);
  margin: 0 auto;
  min-height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 8px 32px rgba(11, 31, 58, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

@media (min-width: 640px) {
  .tochen-site-header {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  .tochen-site-header__bar {
    min-height: 4rem;
    padding: 0 1.5rem;
  }
}

.tochen-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 600;
  text-decoration: none !important;
  color: var(--tochen-navy) !important;
  flex-shrink: 0;
}

.tochen-brand__mark {
  display: flex;
  width: 2.25rem;
  height: 2.25rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--tochen-navy), var(--tochen-navy-600));
  box-shadow: 0 2px 8px rgba(11, 31, 58, 0.25);
  overflow: hidden;
}

.tochen-brand__mark img {
  width: 1.5rem;
  height: 1.5rem;
  filter: brightness(0) invert(1);
}

.tochen-brand__name {
  display: none;
  background: linear-gradient(to left, var(--tochen-navy), #2e508f);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[dir="ltr"] .tochen-brand__name {
  background: linear-gradient(to right, var(--tochen-navy), #2e508f);
  -webkit-background-clip: text;
  background-clip: text;
}

@media (min-width: 640px) {
  .tochen-brand__name {
    display: inline;
  }
}

.tochen-nav {
  display: none;
  align-items: center;
  gap: 0.15rem;
  flex: 1;
  justify-content: center;
}

@media (min-width: 900px) {
  .tochen-nav {
    display: flex;
  }
  .tochen-nav.is-open {
    display: flex;
  }
}

.tochen-nav__link {
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(11, 31, 58, 0.75) !important;
  text-decoration: none !important;
  transition: background 0.15s, color 0.15s;
}

.tochen-nav__link:hover,
.tochen-nav__link.is-current {
  background: rgba(236, 253, 251, 0.9);
  color: var(--tochen-navy) !important;
}

.tochen-nav__link--lg {
  display: none;
}

@media (min-width: 1100px) {
  .tochen-nav__link--lg {
    display: inline-flex;
  }
}

.tochen-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.tochen-lang {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--tochen-navy) !important;
  text-decoration: none !important;
  padding: 0.35rem 0.5rem;
}

.tochen-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.9rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff !important;
  text-decoration: none !important;
  background: linear-gradient(135deg, var(--tochen-teal), #0d9488);
  box-shadow: 0 0 20px rgba(20, 184, 166, 0.25);
}

.tochen-cta:hover {
  color: #fff !important;
  filter: brightness(1.05);
}

.tochen-nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
  border: 0;
  background: transparent;
  cursor: pointer;
}

@media (min-width: 900px) {
  .tochen-nav-toggle {
    display: none;
  }
}

.tochen-nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--tochen-navy);
  border-radius: 2px;
}

@media (max-width: 899px) {
  .tochen-nav.is-open {
    display: flex;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    border-radius: 1rem;
    border: 1px solid var(--tochen-border);
    background: #fff;
    box-shadow: 0 16px 40px rgba(11, 31, 58, 0.12);
  }
  .tochen-site-header {
    position: sticky;
  }
  .tochen-site-header__bar {
    position: relative;
  }
}

/* ========== Footer ========== */
.tochen-site-footer {
  position: relative;
  margin-top: 4rem;
  background: var(--tochen-navy);
  color: var(--tochen-navy-100);
}

.tochen-site-footer__line {
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--tochen-teal), var(--tochen-teal-300), var(--tochen-teal), transparent);
  opacity: 0.7;
}

.tochen-site-footer__inner {
  max-width: var(--tochen-max);
  margin: 0 auto;
  padding: 3.5rem 1rem 2rem;
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 640px) {
  .tochen-site-footer__inner {
    grid-template-columns: 1fr 1fr;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .tochen-site-footer__inner {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.tochen-brand--light,
.tochen-brand--light .tochen-brand__name {
  color: #fff !important;
  background: none;
  -webkit-text-fill-color: #fff;
}

.tochen-brand__mark--light {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
  ring: 1px solid rgba(255, 255, 255, 0.2);
}

.tochen-site-footer__tagline {
  margin: 0.75rem 0 0;
  max-width: 18rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--tochen-navy-200);
}

.tochen-site-footer__heading {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tochen-teal-300);
}

.tochen-site-footer__list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.tochen-site-footer__list li {
  margin: 0 0 0.65rem;
}

.tochen-site-footer__list a {
  font-size: 0.875rem;
  color: var(--tochen-navy-100) !important;
  text-decoration: none !important;
}

.tochen-site-footer__list a:hover {
  color: #fff !important;
}

.tochen-site-footer__bottom {
  max-width: var(--tochen-max);
  margin: 0 auto;
  padding: 2rem 1rem 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--tochen-navy-300);
}

@media (min-width: 640px) {
  .tochen-site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

.tochen-site-footer__affiliate {
  margin: 0;
  max-width: 28rem;
  font-size: 0.8rem;
  line-height: 1.45;
  opacity: 0.9;
}

/* ========== Content / archive ========== */
body.tochen-theme .site-content .content-area {
  max-width: var(--tochen-max);
}

body.tochen-theme:not(.single) .inside-article {
  border-radius: 1rem;
  border: 1px solid var(--tochen-border);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 32px rgba(11, 31, 58, 0.06);
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

body.tochen-theme:not(.single) .inside-article:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -12px rgba(11, 31, 58, 0.12);
}

body.tochen-theme h1,
body.tochen-theme h2,
body.tochen-theme h3 {
  color: var(--tochen-navy);
}

/* ========== PRESERVED single-post hero (do not redesign) ========== */
.main-title {
  display: none;
}

.single header.entry-header {
  position: absolute;
  height: 396px;
  top: 102px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.single header.entry-header .entry-meta {
  display: none !important;
}

.byline {
  display: none !important;
}

.single .site-main {
  padding-top: 420px;
}

.single .inside-article {
  border-radius: 14px;
}

.single h1.entry-title {
  z-index: 1;
  color: #fff !important;
  font-size: 60px;
  text-align: center;
  padding: 0 1rem;
}

.table-wrapper {
  width: 100%;
  overflow-x: auto;
}

@media (max-width: 767px) {
  .single h1.entry-title {
    text-align: center;
    font-size: 36px !important;
    font-weight: bold;
    padding: 20px;
  }
}

/* ========== Blog hub front page ========== */
.tochen-home-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4.5rem 1.25rem 3rem;
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
}

.tochen-home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 31, 58, 0.55), rgba(11, 31, 58, 0.72));
}

.tochen-home-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 44rem;
}

.tochen-home-hero__eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tochen-teal-300);
}

.tochen-home-hero__title {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: #fff !important;
  line-height: 1.15;
}

.tochen-home-hero__lead {
  margin: 1rem auto 0;
  max-width: 36rem;
  font-size: 1.05rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.9);
}

.tochen-home-hero__actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.tochen-home-hero__secondary {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #fff !important;
  text-decoration: none !important;
  font-size: 0.875rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.08);
}

.tochen-home-latest {
  padding: 3rem 1rem 4rem;
}

.tochen-home-latest__inner {
  max-width: var(--tochen-max);
  margin: 0 auto;
}

.tochen-home-latest__heading {
  margin: 0 0 1.5rem;
  font-size: 1.5rem;
  color: var(--tochen-navy);
}

.tochen-post-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .tochen-post-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .tochen-post-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tochen-post-card {
  margin: 0;
  border-radius: 1rem;
  border: 1px solid var(--tochen-border);
  background: #fff;
  box-shadow: 0 8px 32px rgba(11, 31, 58, 0.06);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.tochen-post-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -12px rgba(11, 31, 58, 0.14);
}

.tochen-post-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit !important;
  text-decoration: none !important;
}

.tochen-post-card__media {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #0b1f3a, #134e4a);
  overflow: hidden;
}

.tochen-post-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tochen-post-card__media--fallback {
  background:
    radial-gradient(circle at 30% 30%, rgba(20, 184, 166, 0.45), transparent 55%),
    linear-gradient(135deg, #0b1f3a, #0f766e);
}

.tochen-post-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.1rem 1.15rem 1.25rem;
  flex: 1;
}

.tochen-post-card__cat {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tochen-teal);
}

.tochen-post-card__title {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.35;
  color: var(--tochen-navy) !important;
}

.tochen-post-card__excerpt {
  margin: 0;
  flex: 1;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--tochen-muted);
}

.tochen-post-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: var(--tochen-muted);
}

.tochen-post-card__cta {
  font-weight: 600;
  color: var(--tochen-teal);
}

.tochen-home-empty {
  padding: 2rem;
  border-radius: 1rem;
  border: 1px dashed var(--tochen-border);
  background: #fff;
  color: var(--tochen-muted);
}

.tochen-pagination {
  margin-top: 2rem;
}

.tochen-pagination .page-numbers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: center;
}

.tochen-pagination .page-numbers li {
  margin: 0;
}

.tochen-pagination a,
.tochen-pagination span {
  display: inline-flex;
  min-width: 2.25rem;
  height: 2.25rem;
  align-items: center;
  justify-content: center;
  padding: 0 0.55rem;
  border-radius: 0.6rem;
  border: 1px solid var(--tochen-border);
  background: #fff;
  color: var(--tochen-navy) !important;
  text-decoration: none !important;
  font-size: 0.875rem;
}

.tochen-pagination .current {
  background: var(--tochen-navy);
  border-color: var(--tochen-navy);
  color: #fff !important;
}

/* Suggest article form */
.tochen-suggest {
  max-width: 36rem;
  margin: 2rem auto;
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--tochen-border);
  background: #fff;
  box-shadow: 0 8px 32px rgba(11, 31, 58, 0.06);
}

.tochen-suggest h1 {
  margin-top: 0;
  font-size: 1.75rem;
}

.tochen-suggest label {
  display: block;
  margin: 1rem 0 0.35rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--tochen-navy);
}

.tochen-suggest input,
.tochen-suggest textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--tochen-border);
  border-radius: 0.75rem;
  font: inherit;
}

.tochen-suggest button {
  margin-top: 1.25rem;
  padding: 0.65rem 1.25rem;
  border: 0;
  border-radius: 0.75rem;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--tochen-teal), #0d9488);
  cursor: pointer;
}

.tochen-suggest__msg {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  background: var(--tochen-teal-50);
  color: var(--tochen-navy);
}

.tochen-suggest__msg.is-error {
  background: #fef2f2;
  color: #991b1b;
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}