/* Shared layout — breakpoints: mobile <768px, tablet 768–1024px, desktop >1024px */

*, ::before, ::after { box-sizing: border-box; }

:root {
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 999px;
  --touch-min: 44px;
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
  --focus-ring: 0 0 0 3px rgba(14, 165, 233, 0.28);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  line-height: 1.6;
}

img, video, svg {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-4), 4vw, var(--space-6));
}

.site-header-wrap {
  position: relative;
  z-index: 200;
}

.site-header {
  position: relative;
}

.site-header-wrap a,
.site-header a { text-decoration: none; }

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--touch-min);
}

.site-header--nav-only .site-header__bar {
  justify-content: center;
}

@media (min-width: 768px) {
  .site-header-wrap {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .site-header-wrap > .site-header,
  .site-header-wrap > .nav-drawer {
    grid-column: 1;
    grid-row: 1;
  }

  .site-header-wrap > .nav-drawer {
    align-self: center;
    justify-self: stretch;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    margin-inline: auto;
    padding-inline: clamp(var(--space-4), 4vw, var(--space-6));
    pointer-events: none;
  }

  .site-header-wrap > .nav-drawer .site-nav {
    pointer-events: auto;
  }

  .site-header-wrap--nav-only > .nav-drawer {
    justify-content: center;
  }

  .site-header--nav-only .site-nav,
  .site-header-wrap--nav-only .site-nav {
    justify-content: center;
  }
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: 0;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: inherit;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-toggle:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.nav-toggle__icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 22px;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

body.nav-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

body.nav-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header-spacer {
  display: none;
  width: var(--touch-min);
  flex-shrink: 0;
}

/* Nav drawer shell */
.nav-drawer {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.nav-drawer__backdrop {
  display: none;
}

.nav-drawer__panel {
  display: contents;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-3);
}

.site-header--nav-only .site-nav {
  justify-content: center;
}

.site-nav > a,
.site-nav > .nav-group > a {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-min);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast), opacity var(--transition-fast);
}

.site-nav a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Dropdown nav groups */
.nav-group {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-children {
  display: none;
  position: absolute;
  top: calc(100% - 4px);
  left: 0;
  z-index: 120;
  flex-direction: column;
  min-width: 11rem;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.nav-children a {
  display: flex;
  align-items: center;
  min-height: var(--touch-min);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: #0f172a;
  white-space: nowrap;
}

.nav-children a:hover {
  background: rgba(15, 23, 42, 0.04);
}

.nav-group:hover .nav-children,
.nav-group:focus-within .nav-children {
  display: flex;
}

.logo {
  flex-shrink: 0;
  color: inherit;
  font-weight: 600;
  line-height: 1.2;
}

.logo-img {
  display: block;
  max-height: 40px;
  width: auto;
}

.site-main { min-height: 60vh; }

.site-main.container {
  padding-top: clamp(var(--space-8), 5vw, var(--space-12));
  padding-bottom: clamp(var(--space-10), 6vw, var(--space-12));
}

/* Footer */
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6) var(--space-8);
  align-items: flex-start;
  justify-content: space-between;
}

.footer-col { flex: 1 1 180px; min-width: 0; }

.footer-social.footer-col {
  flex: 0 0 auto;
  max-width: 100%;
}

.footer-brand { flex: 1 1 260px; }

.footer-contact-item {
  margin: 0;
  line-height: 1.5;
}

.footer-contact-item strong {
  font-weight: 600;
  margin-right: 0.35rem;
}

.footer-contact-item a {
  color: inherit;
  text-decoration: none;
}

.footer-contact-item a:hover {
  text-decoration: underline;
}

.footer-bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}

.footer-bottom .footer-copy {
  margin: 0;
}

.footer-copy {
  margin: 0 0 var(--space-2);
  line-height: 1.5;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-size: 0.875rem;
  opacity: 0.85;
}

.footer-contact a {
  color: inherit;
  text-decoration: none;
  min-height: var(--touch-min);
  display: inline-flex;
  align-items: center;
}

.footer-contact a:hover { text-decoration: underline; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  align-items: center;
}

.footer-nav a {
  color: inherit;
  text-decoration: none;
  font-size: 0.875rem;
  min-height: var(--touch-min);
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) 0;
}

.footer-nav a:hover { text-decoration: underline; }

.footer-social {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-start;
  flex: 0 1 auto;
  gap: var(--space-2);
}

.footer-social__label {
  margin: 0 0 var(--space-1);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.75;
}

.footer-social__icons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  justify-content: flex-end;
}

.footer-social__icons > .social-link {
  flex: 0 0 auto;
}

.footer-social .social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 2.5rem;
  height: 2.5rem;
  min-width: 2.5rem;
  min-height: 2.5rem;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
}

.footer-social .social-link:hover {
  color: #fff;
  transform: translateY(-1px);
}

.footer-social .social-link:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.footer-social .social-link--no-url {
  cursor: default;
  color: rgba(255, 255, 255, 0.45);
  pointer-events: none;
}

.footer-social .social-link--no-url:hover {
  transform: none;
  color: rgba(255, 255, 255, 0.45);
}

.social-link__icon {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
  display: block;
  flex-shrink: 0;
}

.footer-social .social-link svg,
.footer-social .social-link svg path,
.footer-social .social-link svg circle {
  fill: currentColor;
}

/* SSR blog pages (fallback before theme overrides) */
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.post-list li {
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  background: #fff;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.post-list li:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.post-list a {
  color: inherit;
  text-decoration: none;
}

.post-list strong {
  display: block;
  font-size: 1.0625rem;
  line-height: 1.4;
  margin-bottom: var(--space-2);
  color: #0f172a;
}

.post-list .meta {
  display: inline-block;
  font-size: 0.8125rem;
  color: #475569;
  margin-right: var(--space-3);
}

.post-list p {
  margin: var(--space-3) 0 0;
  color: #475569;
  font-size: 0.9375rem;
  line-height: 1.65;
}

.post-article header {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.post-article h1 {
  margin: 0 0 var(--space-4);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #0f172a;
}

.post-article .meta {
  font-size: 0.875rem;
  color: #475569;
  margin: 0 0 var(--space-3);
}

.post-article .excerpt {
  font-size: 1.0625rem;
  color: #334155;
  line-height: 1.7;
  margin: 0;
}

.post-content {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: #334155;
}

.post-content h2,
.post-content h3,
.post-content h4 {
  margin: var(--space-8) 0 var(--space-4);
  line-height: 1.3;
}

.post-content p { margin: 0 0 var(--space-4); }

.post-content a {
  color: #0284c7;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post-content img {
  border-radius: var(--radius-md);
  margin: var(--space-6) 0;
}

.post-content blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-5);
  border-left: 3px solid #cbd5e1;
  color: #475569;
  background: rgba(248, 250, 252, 0.8);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.post-content ul,
.post-content ol {
  margin: 0 0 var(--space-4);
  padding-left: var(--space-6);
}

.post-content pre {
  overflow-x: auto;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: #0f172a;
  color: #e2e8f0;
  font-size: 0.875rem;
  line-height: 1.6;
}

.post-content code {
  font-size: 0.9em;
  padding: 0.15em 0.4em;
  border-radius: 4px;
  background: rgba(15, 23, 42, 0.06);
}

.post-content pre code {
  padding: 0;
  background: transparent;
}

/* Shared block fallbacks (editor preview & no-theme) */
.blk-section { width: 100%; }
.blk-container { margin: 0 auto; }
.blk-hero { position: relative; }
.blk-hero__inner { position: relative; z-index: 1; }
.blk-hero__bg { position: absolute; inset: 0; pointer-events: none; }
.blk-hero-subtitle { margin: 0.75rem 0 1.5rem; }
.blk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-min);
  margin-top: var(--space-2);
  padding: var(--space-3) var(--space-6);
  text-decoration: none;
  cursor: pointer;
  border: none;
  font: inherit;
  line-height: 1.2;
}
.blk-btn:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}
.blk-post-grid { display: grid; gap: var(--space-4); }
.blk-post-card a { text-decoration: none; color: inherit; }
.blk-image img { max-width: 100%; height: auto; }
.blk-post-content pre { overflow-x: auto; }

.blk-contact-form {
  margin-top: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}
.blk-contact-form__title {
  margin: 0 0 var(--space-2);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.3;
}
.blk-contact-form__desc {
  margin: 0 0 var(--space-6);
  color: #64748b;
  line-height: 1.7;
  font-size: 0.975rem;
}
.blk-contact-form__desc p { margin: 0; }
.blk-contact-form__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 520px;
}
.blk-contact-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  width: 100%;
}
.blk-contact-form__field span {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #475569;
}
.blk-contact-form__field input,
.blk-contact-form__field textarea {
  display: block;
  width: 100%;
  box-sizing: border-box;
  min-height: var(--touch-min);
  padding: var(--space-3) var(--space-4);
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  font: inherit;
  line-height: 1.5;
  background: #fff;
  color: #0f172a;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.blk-contact-form__field textarea { min-height: 140px; resize: vertical; }
.blk-contact-form__field input:focus,
.blk-contact-form__field textarea:focus {
  outline: none;
  border-color: #0ea5e9;
  box-shadow: var(--focus-ring);
}
.blk-contact-form__submit {
  align-self: flex-start;
  margin-top: var(--space-1);
  cursor: pointer;
  border: none;
  font: inherit;
  min-height: var(--touch-min);
}
.blk-contact-form__status {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
}
.blk-contact-form__status--ok { color: #15803d; }
.blk-contact-form__status--err { color: #b91c1c; }

.blk-contact-info {
  margin: var(--space-6) 0 0;
  display: grid;
  gap: var(--space-3);
}
.blk-contact-info__item {
  margin: 0;
  line-height: 1.7;
  font-size: 1rem;
}
.blk-contact-info__item strong {
  font-weight: 600;
  margin-right: 0.35rem;
}
.blk-contact-info__item a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Tablet */
@media (min-width: 768px) and (max-width: 1024px) {
  .container { max-width: 960px; }
  .post-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile — off-canvas drawer nav, centered logo */
@media (max-width: 767px) {
  .nav-toggle {
    display: inline-flex;
  }

  .header-spacer {
    display: block;
  }

  .site-header__bar {
    display: grid;
    grid-template-columns: var(--touch-min) 1fr var(--touch-min);
    align-items: center;
    gap: var(--space-2);
    flex-wrap: nowrap;
  }

  .site-header--nav-only .site-header__bar {
    grid-template-columns: var(--touch-min) 1fr var(--touch-min);
    justify-content: stretch;
  }

  .nav-toggle {
    grid-column: 1;
    grid-row: 1;
    position: relative;
    z-index: 310;
  }

  .site-header {
    position: relative;
    z-index: 300;
  }

  .logo {
    grid-column: 2;
    grid-row: 1;
    justify-self: center;
    text-align: center;
    max-width: 100%;
  }

  .header-spacer {
    grid-column: 3;
    grid-row: 1;
  }

  .nav-drawer {
    position: fixed;
    inset: 0;
    z-index: 280;
    margin: 0;
    pointer-events: none;
  }

  .nav-drawer__backdrop {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(15, 23, 42, 0.52);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    pointer-events: none;
  }

  body.nav-open .nav-drawer__backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-drawer__panel {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    width: min(320px, 88vw);
    max-width: 100%;
    padding: calc(var(--touch-min) + var(--space-4)) var(--space-5) var(--space-6);
    overflow-y: auto;
    overscroll-behavior: contain;
    background: #fff;
    color: #0f172a;
    box-shadow: -8px 0 32px rgba(15, 23, 42, 0.18);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    pointer-events: auto;
  }

  body.nav-open .nav-drawer__panel {
    transform: translateX(0);
  }

  .site-nav {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    width: 100%;
  }

  .site-nav > a,
  .site-nav > .nav-group > a {
    width: 100%;
    justify-content: flex-start;
    padding: var(--space-3) var(--space-4);
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
  }

  .nav-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .nav-children {
    position: static;
    display: flex !important;
    flex-direction: column;
    width: 100%;
    box-shadow: none;
    border: none;
    padding: 0 0 var(--space-1) var(--space-4);
    background: transparent;
  }

  .nav-children a {
    justify-content: flex-start;
    font-size: 0.875rem;
    color: #475569;
    min-height: var(--touch-min);
    padding-left: var(--space-3);
  }

  .site-header--nav-only .logo {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--space-3);
  }

  .footer-col {
    flex: 0 0 auto;
    width: 100%;
    max-width: 22rem;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .footer-contact {
    align-items: center;
    gap: 0.25rem;
  }

  .footer-nav {
    justify-content: center;
    gap: var(--space-1) var(--space-3);
  }

  .footer-social {
    align-items: center;
    width: 100%;
    max-width: 22rem;
  }

  .footer-social__label {
    text-align: center;
    margin-bottom: var(--space-1);
  }

  .footer-bottom {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    text-align: center;
  }

  .footer-social__icons {
    justify-content: center;
    gap: var(--space-2);
  }

  .site-footer {
    padding-top: var(--space-5);
    padding-bottom: var(--space-4);
  }

  .post-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .logo-img { max-height: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .nav-toggle__bar,
  .nav-drawer__backdrop,
  .nav-drawer__panel {
    transition: none;
  }
}