/**
 * Behinto Blog — main stylesheet
 * Palette adapted from Behinto PWA tokens (success/teal + gray), RTL editorial.
 */

:root {
  /* From PWA tokens — calm health teal, not brand-purple gradients */
  --color-gray-25: #fafafb;
  --color-gray-50: #f5f5f7;
  --color-gray-100: #edecef;
  --color-gray-200: #dcdcdf;
  --color-gray-400: #a5a4a9;
  --color-gray-500: #86858b;
  --color-gray-700: #58575d;
  --color-gray-800: #444349;
  --color-gray-900: #2e2d33;
  --color-gray-950: #19171e;

  --color-teal-50: #f0f7f2;
  --color-teal-100: #e2f2e6;
  --color-teal-200: #c6e6d0;
  --color-teal-500: #079455;
  --color-teal-600: #0f824b;
  --color-teal-700: #12693d;
  --color-teal-800: #01522c;
  --color-teal-900: #03381d;

  --color-accent-50: #f1f7ed;
  --color-accent-400: #7ab948;

  --color-bg: var(--color-gray-25);
  --color-bg-elevated: #ffffff;
  --color-bg-soft: var(--color-teal-50);
  --color-text: var(--color-gray-950);
  --color-text-muted: var(--color-gray-700);
  --color-text-subtle: var(--color-gray-500);
  --color-border: var(--color-gray-200);
  --color-border-soft: var(--color-gray-100);
  --color-link: var(--color-teal-700);
  --color-link-hover: var(--color-teal-900);
  --color-focus: var(--color-teal-500);

  --font-sans: "Vazirmatn", "Tahoma", "Segoe UI", sans-serif;
  --measure: 42rem;
  --site-max: 68rem;
  --radius: 0.75rem;
  --radius-sm: 0.5rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --shadow-soft: 0 1px 2px rgba(25, 23, 30, 0.04), 0 8px 24px rgba(25, 23, 30, 0.04);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text);
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(7, 148, 85, 0.06), transparent 55%),
    radial-gradient(90% 60% at 0% 100%, rgba(122, 185, 72, 0.05), transparent 50%),
    var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-link);
  text-decoration-thickness: 0.06em;
  text-underline-offset: 0.18em;
  transition: color 160ms var(--ease);
}

a:hover {
  color: var(--color-link-hover);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

.site {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-main {
  flex: 1;
  width: min(100% - 2rem, var(--site-max));
  margin-inline: auto;
  padding-block: var(--space-6) var(--space-8);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  border-block-end: 1px solid var(--color-border-soft);
}

.site-header__inner {
  width: min(100% - 2rem, var(--site-max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding-block: var(--space-4);
}

.site-branding {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.site-title {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.site-title a {
  color: var(--color-teal-800);
  text-decoration: none;
}

.site-title a:hover {
  color: var(--color-teal-900);
}

.site-description {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.custom-logo-link img {
  max-height: 48px;
  width: auto;
}

.primary-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  justify-content: flex-start;
}

.primary-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.primary-nav a:hover,
.primary-nav .current-menu-item > a {
  color: var(--color-teal-700);
}

.header-search {
  flex-shrink: 0;
}

.header-search .search-form {
  display: flex;
  gap: var(--space-2);
  align-items: stretch;
}

.header-search .search-field {
  width: min(12rem, 28vw);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  background: var(--color-bg-elevated);
  font: inherit;
  font-size: 0.9rem;
  color: var(--color-text);
}

.header-search .search-submit {
  border: 0;
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  background: var(--color-teal-700);
  color: #fff;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}

.header-search .search-submit:hover {
  background: var(--color-teal-800);
}

/* ---------- Home intro ---------- */

.blog-intro {
  margin-block-end: var(--space-7);
  padding: var(--space-6);
  border-radius: calc(var(--radius) + 0.25rem);
  background:
    linear-gradient(135deg, var(--color-teal-50), var(--color-bg-elevated) 55%, var(--color-accent-50));
  border: 1px solid var(--color-border-soft);
  position: relative;
  overflow: hidden;
}

.blog-intro::after {
  content: "";
  position: absolute;
  inset-inline-start: -10%;
  inset-block-end: -40%;
  width: 50%;
  height: 80%;
  background: radial-gradient(circle, rgba(7, 148, 85, 0.12), transparent 70%);
  pointer-events: none;
}

.blog-intro__eyebrow {
  margin: 0 0 var(--space-2);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-teal-600);
}

.blog-intro__title {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.25;
  font-weight: 700;
  color: var(--color-gray-950);
  max-width: 18ch;
}

.blog-intro__text {
  margin: 0;
  max-width: 36ch;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* ---------- Post list ---------- */

.post-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.post-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

@media (min-width: 720px) {
  .post-card.has-thumb {
    grid-template-columns: 14rem minmax(0, 1fr);
    align-items: start;
  }
}

.post-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-teal-200);
}

.post-card__media {
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-gray-100);
  aspect-ratio: 16 / 9;
}

.post-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 320ms var(--ease);
}

.post-card:hover .post-card__media img {
  transform: scale(1.03);
}

.post-card__title {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  line-height: 1.35;
  font-weight: 700;
}

.post-card__title a {
  color: var(--color-text);
  text-decoration: none;
}

.post-card__title a:hover {
  color: var(--color-teal-700);
}

.post-card__excerpt {
  margin: 0 0 var(--space-3);
  color: var(--color-text-muted);
  font-size: 0.98rem;
}

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: 0.85rem;
  color: var(--color-text-subtle);
}

.entry-meta a {
  color: var(--color-teal-600);
  text-decoration: none;
}

.entry-meta a:hover {
  text-decoration: underline;
}

/* ---------- Single / page ---------- */

.entry-header {
  margin-block-end: var(--space-5);
  max-width: var(--measure);
}

.entry-header .entry-title {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.85rem, 4.2vw, 2.6rem);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.entry-featured {
  margin-block-end: var(--space-6);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-gray-100);
}

.entry-featured img {
  width: 100%;
  max-height: 28rem;
  object-fit: cover;
}

.entry-content,
.page-content {
  max-width: var(--measure);
  font-size: 1.1rem;
  line-height: 1.85;
}

.entry-content > *:first-child {
  margin-block-start: 0;
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
  line-height: 1.35;
  margin-block: var(--space-6) var(--space-3);
  color: var(--color-gray-900);
}

.entry-content h2 {
  font-size: 1.45rem;
}

.entry-content h3 {
  font-size: 1.2rem;
}

.entry-content p,
.entry-content ul,
.entry-content ol {
  margin-block: 0 var(--space-4);
}

.entry-content ul,
.entry-content ol {
  padding-inline-start: 1.25rem;
}

.entry-content blockquote {
  margin: var(--space-5) 0;
  padding: var(--space-4) var(--space-5);
  border-inline-start: 3px solid var(--color-teal-500);
  background: var(--color-teal-50);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-gray-800);
}

.entry-content figure {
  margin: var(--space-5) 0;
}

.entry-content figcaption {
  margin-top: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  text-align: center;
}

.entry-footer {
  margin-block-start: var(--space-6);
  padding-block-start: var(--space-4);
  border-block-start: 1px solid var(--color-border-soft);
  max-width: var(--measure);
}

.post-navigation {
  margin-block-start: var(--space-7);
  padding-block-start: var(--space-5);
  border-block-start: 1px solid var(--color-border);
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .post-navigation {
    grid-template-columns: 1fr 1fr;
  }
}

.post-navigation a {
  display: block;
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-soft);
  text-decoration: none;
  color: var(--color-text);
}

.post-navigation a:hover {
  border-color: var(--color-teal-200);
  color: var(--color-teal-800);
}

.post-navigation .nav-subtitle {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-subtle);
  margin-block-end: var(--space-1);
}

.post-navigation .nav-title {
  font-weight: 600;
}

/* ---------- Archives / search / 404 ---------- */

.page-header {
  margin-block-end: var(--space-6);
  padding-block-end: var(--space-4);
  border-block-end: 1px solid var(--color-border-soft);
}

.page-title {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.3;
}

.archive-description {
  margin: 0;
  color: var(--color-text-muted);
  max-width: var(--measure);
}

.empty-state {
  padding: var(--space-7) var(--space-5);
  text-align: center;
  background: var(--color-bg-elevated);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
}

.empty-state h1,
.empty-state h2 {
  margin-top: 0;
}

/* ---------- Pagination ---------- */

.pagination,
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-block-start: var(--space-7);
}

.pagination .page-numbers,
.nav-links .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding-inline: 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
}

.pagination .page-numbers.current,
.nav-links .page-numbers.current {
  background: var(--color-teal-700);
  border-color: var(--color-teal-700);
  color: #fff;
}

.pagination a.page-numbers:hover,
.nav-links a.page-numbers:hover {
  border-color: var(--color-teal-300, var(--color-teal-200));
  color: var(--color-teal-700);
}

/* Yoast breadcrumbs */
.yoast-breadcrumbs,
#breadcrumbs,
.breadcrumbs {
  margin-block-end: var(--space-4);
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  max-width: var(--measure);
}

.yoast-breadcrumbs a,
#breadcrumbs a {
  color: var(--color-teal-600);
  text-decoration: none;
}

/* ---------- Footer ---------- */

.site-footer {
  margin-block-start: auto;
  border-block-start: 1px solid var(--color-border-soft);
  background: color-mix(in srgb, var(--color-teal-50) 65%, var(--color-bg));
  padding-block: var(--space-6);
}

.site-footer__inner {
  width: min(100% - 2rem, var(--site-max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: space-between;
  align-items: center;
}

.site-footer__copy {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
}

.footer-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-nav a:hover {
  color: var(--color-teal-700);
}

/* ---------- Responsive header ---------- */

@media (max-width: 719px) {
  .site-header__inner {
    flex-wrap: wrap;
  }

  .header-search {
    width: 100%;
    order: 3;
  }

  .header-search .search-form {
    width: 100%;
  }

  .header-search .search-field {
    flex: 1;
    width: auto;
  }

  .primary-nav {
    width: 100%;
  }
}

/* Subtle entrance */
@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.blog-intro,
.post-card,
.entry-header {
  animation: rise-in 420ms var(--ease) both;
}

.post-card:nth-child(2) { animation-delay: 40ms; }
.post-card:nth-child(3) { animation-delay: 80ms; }
.post-card:nth-child(4) { animation-delay: 120ms; }