/* ============================================================
   PINNACLE RIDGE — Ghost Blog Theme Stylesheet
   Mirrors the main site design system:
     Brand: #004A77 (Teal/Navy), #009B8F (Green), #9CFFF5 (Mint)
     Typography: Montserrat
     Grid: 8px base unit
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Brand palette */
  --color-teal: #004A77;
  --color-teal-dark: #003356;
  --color-teal-light: #0A5D8F;
  --color-green: #009B8F;
  --color-green-dark: #00857A;
  --color-green-light: #00B5A6;
  --color-mint: #9CFFF5;
  --color-mint-faint: #E0FFF9;
  --color-white: #FFFFFF;
  --color-off-white: #F6F9FB;
  --color-gray-50: #F0F4F7;
  --color-gray-100: #E2E8ED;
  --color-gray-200: #C5CED6;
  --color-gray-300: #9EAAB6;
  --color-gray-400: #6B7B8A;
  --color-gray-500: #4A5968;
  --color-gray-600: #344250;
  --color-text: #1A2B3C;
  --color-text-light: #4A5968;
  --color-text-muted: #6B7B8A;

  /* Spacing (8px grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 48px;
  --space-10: 56px;
  --space-11: 64px;
  --space-12: 80px;
  --space-13: 96px;

  /* Typography */
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Montserrat', sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;

  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 74, 119, 0.06), 0 1px 2px rgba(0, 74, 119, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 74, 119, 0.08), 0 2px 4px rgba(0, 74, 119, 0.04);
  --shadow-lg: 0 8px 32px rgba(0, 74, 119, 0.10), 0 4px 8px rgba(0, 74, 119, 0.04);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --header-height: 72px;
}


/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: var(--weight-regular);
  color: var(--color-text);
  line-height: var(--leading-normal);
  background: var(--color-white);
}

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

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


/* --- Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-7);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--space-13) 0;
}

.section--gray {
  background: var(--color-off-white);
}

.section--hero {
  padding: var(--space-13) 0 var(--space-9);
}

.section--lg {
  padding: var(--space-13) 0;
}


/* --- Typography --- */
.headline-2 {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-5);
}

.section-label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-green);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: var(--leading-normal);
  max-width: 600px;
}

.section-header--center {
  text-align: center;
  margin-bottom: var(--space-9);
}

.section-header--center .subtitle {
  margin: 0 auto;
}


/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-100);
  height: var(--header-height);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.header__logo img {
  height: 40px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header__nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-2);
}

.header__nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-light);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
              background-color var(--duration-fast) var(--ease-out);
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--color-teal);
  background: var(--color-off-white);
}

.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-teal);
  border-radius: 2px;
}


/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-6);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  border: none;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-green);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-green-dark);
}

.btn--sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}


/* --- Tags --- */
.tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: var(--color-gray-50);
  color: var(--color-gray-500);
  letter-spacing: 0.02em;
}

.tag--green {
  background: rgba(0, 155, 143, 0.10);
  color: var(--color-green);
}


/* --- Tag Filter Nav --- */
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.tag-filter__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  background: var(--color-gray-50);
  color: var(--color-text-light);
  transition: all var(--duration-fast) var(--ease-out);
}

.tag-filter__link:hover {
  background: var(--color-gray-100);
  color: var(--color-teal);
}

.tag-filter__link--active {
  background: var(--color-teal);
  color: var(--color-white);
}

.tag-filter__link--active:hover {
  background: var(--color-teal-dark);
  color: var(--color-white);
}


/* --- Insight Cards --- */
.insights__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

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

.insight-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.insight-card__image {
  height: 200px;
  background-color: var(--color-off-white);
  position: relative;
  overflow: hidden;
}

.insight-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.insight-card__image-motif {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.15;
}

.insight-card__image-motif svg {
  width: 120px;
  height: 120px;
  stroke: var(--color-teal);
  fill: none;
  stroke-width: 1;
}

.insight-card__body {
  padding: var(--space-7);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.insight-card__tags {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.insight-card__title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
}

.insight-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-5);
  flex: 1;
}

.insight-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.insight-card__readmore {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-green);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--duration-fast) var(--ease-out);
}

.insight-card:hover .insight-card__readmore {
  gap: 10px;
}

.insight-card__reading-time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}


/* --- Pagination --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-11);
}

.pagination__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-green);
  transition: color var(--duration-fast) var(--ease-out);
}

.pagination__link:hover {
  color: var(--color-green-dark);
}

.pagination__info {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}


/* --- Article (Post Detail) --- */
.article__header {
  padding: var(--space-13) 0 var(--space-8);
  text-align: center;
}

.article__tag {
  display: inline-block;
  margin-bottom: var(--space-5);
}

.article__title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-5);
}

.article__excerpt {
  font-size: var(--text-xl);
  color: var(--color-text-light);
  line-height: var(--leading-normal);
  max-width: 600px;
  margin: 0 auto var(--space-7);
}

.article__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.article__author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.article__author-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.article__author-name {
  font-weight: var(--weight-medium);
  color: var(--color-text);
}

.article__reading-time {
  color: var(--color-text-muted);
}

.article__feature-image {
  margin-bottom: var(--space-11);
}

.article__feature-image img {
  width: 100%;
  border-radius: var(--radius-md);
}

.article__feature-image figcaption {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-3);
}


/* --- Article Content --- */
.article__content {
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  margin-bottom: var(--space-13);
}

.article__content h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
  margin-top: var(--space-11);
  margin-bottom: var(--space-5);
  line-height: var(--leading-snug);
}

.article__content h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
  margin-top: var(--space-9);
  margin-bottom: var(--space-4);
  line-height: var(--leading-snug);
}

.article__content p {
  margin-bottom: var(--space-5);
}

.article__content a {
  color: var(--color-green);
  text-decoration: underline;
  text-decoration-color: rgba(0, 155, 143, 0.3);
  text-underline-offset: 2px;
  transition: text-decoration-color var(--duration-fast) var(--ease-out);
}

.article__content a:hover {
  text-decoration-color: var(--color-green);
}

.article__content ul,
.article__content ol {
  margin-bottom: var(--space-5);
  padding-left: var(--space-7);
}

.article__content li {
  margin-bottom: var(--space-2);
}

.article__content blockquote {
  border-left: 3px solid var(--color-green);
  padding-left: var(--space-6);
  margin: var(--space-7) 0;
  font-style: italic;
  color: var(--color-text-light);
}

.article__content pre {
  background: var(--color-gray-600);
  color: var(--color-off-white);
  padding: var(--space-6);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--space-5);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.article__content code {
  font-size: 0.9em;
  background: var(--color-gray-50);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.article__content pre code {
  background: none;
  padding: 0;
  border-radius: 0;
}

.article__content img {
  border-radius: var(--radius-md);
  margin: var(--space-7) 0;
}

.article__content figure {
  margin: var(--space-7) 0;
}

.article__content figcaption {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-3);
}

/* Ghost content cards */
.article__content .kg-image-card,
.article__content .kg-gallery-card {
  margin: var(--space-7) 0;
}

.article__content .kg-width-wide {
  max-width: calc(var(--container-narrow) + 200px);
  margin-left: calc((var(--container-narrow) - 100%) / 2 - 100px);
  margin-right: calc((var(--container-narrow) - 100%) / 2 - 100px);
}

.article__content .kg-width-full {
  max-width: var(--container-max);
  margin-left: calc((var(--container-narrow) - 100%) / 2 - 200px);
  margin-right: calc((var(--container-narrow) - 100%) / 2 - 200px);
}

.article__content .kg-bookmark-card {
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: var(--space-7) 0;
}

.article__content .kg-bookmark-container {
  display: flex;
  text-decoration: none;
  color: inherit;
}

.article__content .kg-bookmark-content {
  flex: 1;
  padding: var(--space-5);
}

.article__content .kg-bookmark-title {
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
  margin-bottom: var(--space-2);
}

.article__content .kg-bookmark-description {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

.article__content .kg-bookmark-thumbnail img {
  width: 200px;
  height: 100%;
  object-fit: cover;
}


/* --- Author Page --- */
.author__avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--space-6);
}


/* --- Footer --- */
.footer {
  background: var(--color-teal);
  color: var(--color-white);
  padding: var(--space-11) 0 var(--space-7);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-9);
}

.footer__logo img {
  height: 36px;
  width: auto;
}

.footer__links {
  display: flex;
  gap: var(--space-6);
}

.footer__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  opacity: 0.8;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.footer__link:hover {
  opacity: 1;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--space-7);
}

.footer__copy {
  font-size: var(--text-xs);
  opacity: 0.6;
}

.footer__social a {
  display: inline-flex;
  opacity: 0.7;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.footer__social a:hover {
  opacity: 1;
}

.footer__social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}


/* --- Mobile Navigation Overlay --- */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-7);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.mobile-nav-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-overlay a {
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: var(--color-teal);
}

.mobile-nav-overlay__close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-nav-overlay__close svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-teal);
  stroke-width: 2;
}


/* --- Responsive --- */
@media (max-width: 1024px) {
  .insights__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header__nav-links {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }

  .headline-2 {
    font-size: var(--text-3xl);
  }

  .article__title {
    font-size: var(--text-3xl);
  }

  .insights__grid {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-6);
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .article__meta {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .tag-filter {
    gap: var(--space-2);
  }

  .pagination {
    flex-direction: column;
    gap: var(--space-4);
  }
}