/* =====================================================================
   1. The New CSS Reset  – v1.11.3  (2024-08-25)
   https://github.com/elad2412/the-new-css-reset
===================================================================== */
@import url(./reset.css);

/* =====================================================================
     2. Design Tokens  –  Navy / Sunrise palette
  ===================================================================== */
:root {
  --primary: #1f3555;
  /* Navy       */
  --accent: #f6a76e;
  /* Sunrise    */
  --bg: #f5f7f9;
  /* Paper      */
  --text: #1c1c1c;
  /* Body text  */
  --radius: .65rem;
  /* Rounded    */
  --shadow: 0 4px 12px rgba(0, 0, 0, .06);
  /* Soft card  */
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="dark"] {
    --bg: #0e1621;
    --text: #e5e7eb;
    --shadow: 0 4px 12px rgba(0, 0, 0, .40);
  }
}

/* =====================================================================
     3. Base
  ===================================================================== */
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans JP", "Inter", sans-serif;
  line-height: 1.75;
  word-break: break-all;
}

/* =====================================================================
     4. Header
  ===================================================================== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  height: 80px;
  padding: 0 2rem;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 3px solid rgba(0, 0, 0, .1);
}

.logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.logo img {
  width: 38px;
  fill: var(--primary);
}

.logo span {
  font-size: 1.45rem;
}

nav.g-nav {
  margin-left: auto;
  display: flex;
  gap: 1.1rem;
  font-weight: 500;
}

nav.g-nav a {
  position: relative;
  color: var(--text);
}

nav.g-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: .18s;
}

nav.g-nav a:hover::after {
  width: 100%;
}

.theme-btn {
  margin-left: 1rem;
  font-size: 1.2rem;
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
}

/* =====================================================================
     5. Footer
  ===================================================================== */
.footer {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-top: 5rem;
  border-top: 1px solid var(--text);
}

@media (max-width:768px) {
  .footer {
    margin-top: 0;
  }
}

.footer__copyright {
  font-size: 1rem;
  padding: 2rem;
}

/* =====================================================================
     6. Hero
  ===================================================================== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 320px;
  text-align: center;
  color: #fff;
  background: url("../img/hero.jpeg") center/cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(31, 53, 85, .35), rgba(31, 53, 85, .75));
}

.hero-inner {
  position: relative;
  max-width: 720px;
  padding: 0 1rem;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
}

.hero p {
  margin-top: 1rem;
  font-size: 1rem;
}

/* =====================================================================
     7. Category Tabs
  ===================================================================== */
.cat-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.2rem;
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, .05);
}

.cat-tabs a {
  position: relative;
  padding: .9rem 1.2rem;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}

.cat-tabs a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 3px;
  background: var(--accent);
  transition: .18s;
}

.cat-tabs a.is-active::after {
  width: 100%;
}

.search_bar {
  width: 100%;
  padding: .6rem .9rem;
  border: 1px solid rgba(0, 0, 0, .2);
  border-radius: var(--radius);
}

/* =====================================================================
     8. Global Layout
  ===================================================================== */
.main-wrap {
  max-width: 1280px;
  margin: 3rem auto 0;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 2rem;
}

@media (max-width:1023px) {
  .main-wrap {
    grid-template-columns: 1fr;
  }

  .sidebar {
    order: -1;
  }
}

/* Jump-to-blog button */
.btn_to_blog {
  display: flex;
  justify-content: center;
  margin: 50px auto;
  padding: .3rem .7rem;
  background: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow);
  transition: .18s;
}

.btn_to_blog:hover {
  transform: translateY(-4px);
}

.btn_to_blog::after {
  content: '>';
  margin-left: 10px;
  font-weight: 600;
  color: var(--accent);
}

/* =====================================================================
     9. Featured Article
  ===================================================================== */
.featured-card {
  display: flex;
  flex-direction: column;
  margin-bottom: 2rem;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: .18s;
}

.featured-card:hover {
  transform: translateY(-4px);
}

.featured-card img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

@media (max-width:768px) {
  .featured-card img {
    height: 160px;
  }
}

.featured-content {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: 1.5rem;
}

.featured-content>a {
  display: inline-block;
  width: 100%;
  height: 100%;
}

.featured-category a,
.card-category a,
.item-category a {
  display: inline-block;
  width: max-content;
  padding: .3rem .7rem;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  font-size: .75rem;
  color: var(--accent);
  transition: .18s;
}

.featured-category a:hover,
.card-category a:hover,
.item-category a:hover {
  background: var(--accent);
  color: #fff;
}

.featured-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  padding-bottom: 90px;
}

.featured-meta {
  font-size: .8rem;
  color: gray;
}

.featured-excerpt {
  font-size: .97rem;
  line-height: 1.7;
}

/* Tags inside cards */
.featured-tag,
.card-tag,
.item-tag {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.featured-tag a,
.card-tag a,
.item-tag a {
  padding: .3rem .7rem;
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  font-size: .75rem;
  color: var(--primary);
  transition: .18s;
}

.featured-tag a::before,
.card-tag a::before,
.item-tag a::before {
  content: "#";
}

.featured-tag a:hover,
.card-tag a:hover,
.item-tag a:hover {
  background: var(--primary);
  color: #fff;
}

/* =====================================================================
     10. Article Cards Grid
  ===================================================================== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.4rem;
}

.card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: .18s;
}

.card:hover {
  transform: translateY(-4px);
}

.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.card-content {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  flex: 1;
  padding: 1rem;
}

.card-content>a {
  display: inline-block;
  width: 100%;
  height: 100%;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
  padding-bottom: 90px;
}

.card-meta {
  font-size: .75rem;
  color: gray;
}

.meta {
  font-size: .9rem;
  color: gray;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.post-archives {
  font-size: .9rem;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.post-category a {
  display: inline-block;
  width: max-content;
  padding: .1rem .7rem;
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  font-size: .75rem;
  color: var(--accent);
  transition: .18s;
}

.post-category a:hover {
  background: var(--accent);
  color: #fff;
}

.post-tag {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.post-tag a {
  padding: .1rem .7rem;
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  font-size: .75rem;
  color: var(--primary);
  transition: .18s;
}

.post-tag a::before {
  content: "#";
}

.post-tag a:hover {
  background: var(--primary);
  color: #fff;
}

.post-recent {
  display: grid;
  grid-template-columns: 35% 5% 20% 5% 35%;
  grid-template-rows: auto 1fr;
  margin: 30px 0 100px;
}

.post-recent .index-link{
  grid-column: 3 / 4;
  grid-row: 2 / 3;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: 600;
  height: 75px;
  background: #fff;
  color: var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: .18s;
}

.post-recent .index-link:hover {
  transform: translateY(-4px);
  background: var(--primary);
  color: #fff;
}

.post-recent-item {
  display: flex;
  width: 100%;
  height: 75px;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: .18s;
}

.post-recent-prevLink_r1c1 {
  color: var(--primary);
  text-align: left;
  font-size: .9rem;
  padding-bottom: 8px;
  grid-row: 1 / 2;
  grid-column: 1 / 2;
}

.post-recent-prevLink_r1c1::before {
  content: "<";
  color: var(--accent);
  font-weight: 600;
  margin-right: .5rem;
}

.post-recent-prevLink_r2c1 {
  grid-row: 2 / 3;
  grid-column: 1 / 2;
}

.post-recent-nextLink_r1c5 {
  color: var(--primary);
  text-align: right;
  font-size: .9rem;
  padding-bottom: 8px;
  grid-row: 1 / 2;
  grid-column: 5 / 6;
}

.post-recent-nextLink_r1c5::after {
  content: ">";
  color: var(--accent);
  font-weight: 600;
  margin-left: .5rem;
}

.post-recent-nextLink_r2c5 {
  grid-row: 2 / 3;
  grid-column: 5 / 6;
}

.post-recent-item:hover {
  transform: translateY(-4px);
}

.post-eyecatch {
  width: 90%;
  aspect-ratio: 16 / 9;
  margin: 20px auto;
}

.post-eyecatch > img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

@media (max-width:768px) {
  .post-recent {
    display: block;
    margin: 30px 0 70px;
  }
  .post-recent .index-link{
    display: flex;
    width: 70%;
    padding: 15px 0;
    margin: 20px auto;
    text-align: center;
    justify-content: center;
    align-items: center;
  }
  .post-recent-prevLink_r2c1 {
    margin-bottom: 20px;
  }
  .post-recent-nextLink_r1c5 {
    text-align: left;
  }

  .post-eyecatch {
    width: 100%;
  }
}

.post-recent-item img {
  width: 75px;
  height: 100%;
  object-fit: cover;
}

.post-recent-body {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: calc(100% - 75px);
  gap: .6rem;
  padding: 15px 10px;
}

.post-recent-body>a {
  display: inline-block;
  width: 100%;
  height: 100%;
}

@media (max-width:768px) {
  .post-recent-body {
    padding: 1.2rem 1.4rem 7rem;
  }
}

.post-recent-title {
  width: 100%;
  height: 100%;
  font-size: .8rem;
  color: var(--text);
  margin: 0;
}

/* =====================================================================
     11. Sidebar Widgets
  ===================================================================== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.widget {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.6rem;
}

.widget h4 {
  margin: 0 0 .9rem;
  font-size: 1rem;
  color: var(--primary);
  text-transform: uppercase;
}

.tag-cloud,
.category-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.tag-cloud a,
.category-cloud a {
  padding: .3rem .7rem;
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  font-size: .75rem;
  color: var(--primary);
  transition: .18s;
}

.tag-cloud a::before {
  content: "#";
}

.tag-cloud a:hover,
.category-cloud a:hover {
  background: var(--primary);
  color: #fff;
}

.category-cloud a {
  border-width: 2px;
  border-color: var(--accent);
  color: var(--accent);
  transition: .18s;
}

.category-cloud a:hover {
  background: var(--accent);
  color: #fff;
}

/* =====================================================================
     12. Archive / Utility Components
  ===================================================================== */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--primary);
}

.separator {
  color: var(--accent);
  font-weight: 600;
  margin: 0 7px;
}

.utility-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.utility-bar select,
.utility-bar input[type=search] {
  padding: .5rem .9rem;
  border: 1px solid rgba(0, 0, 0, .15);
  border-radius: var(--radius);
  font-size: .88rem;
}

.utility-bar button {
  padding: .55rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

/* Archive list */
.archive-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.list-item {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 1.6rem;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: .18s;
}

.list-item:hover {
  transform: translateY(-4px);
}

@media (max-width:768px) {
  .list-item {
    grid-template-columns: 1fr;
  }

  .list-item img {
    height: 180px;
  }
}

.list-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.item-body {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  justify-content: space-between;
  padding: 1.2rem 1.4rem;
}

.item-body>a {
  display: inline-block;
  width: 100%;
  height: 100%;
}

@media (max-width:768px) {
  .item-body {
    padding: 1.2rem 1.4rem 7rem;
  }
}

.item-cat {
  font-size: .78rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
}

.item-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
}

.item-meta {
  font-size: .8rem;
  color: gray;
}

.item-excerpt {
  font-size: .93rem;
}

.card-archives,
.item-archives,
.featured-archives {
  position: absolute;
  bottom: 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 6px;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .6rem;
  margin: 3.2rem 0;
}

.pagination .pagination__numberWrapper {
  display: flex;
  justify-content: center;
  gap: 7px;
}

.pagination .pagination__prev,
.pagination .pagination__next,
.pagination .pagination__number {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: .18s;
}

.pagination .pagination__prev {
  margin-right: 10px;
  color: var(--accent);
  font-weight: 600;
}

.pagination .pagination__next {
  margin-left: 10px;
  color: var(--accent);
  font-weight: 600;
}

.pagination .pagination__number.current {
  background: gray;
  color: #fff;
  border-color: gray;
}

.pagination .pagination__number:not(.current):hover,
.pagination .pagination__prev:not(.current):hover,
.pagination .pagination__next:not(.current):hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.pagination .pagination__prev.disabled,
.pagination .pagination__next.disabled {
  display: none;
}

.pagination span[class^="pagination__"] a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}



/* ============================
   Tags
============================ */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: 2.4rem;
}

.tags a {
  background: var(--bg);
  padding: .3rem .8rem;
  border-radius: var(--radius);
  font-size: .78rem;
  color: var(--primary);
  transition: .15s;
  border: 1px solid var(--primary);
}

.tags a:hover {
  background: var(--primary);
  color: #fff;
}

/* ============================
   Related Articles
============================ */
.related {
  max-width: 960px;
  margin: 3rem auto 0;
  background: #fff;
  border-radius: var(--radius);
  padding: 2.8rem 2.2rem;
  box-shadow: var(--shadow);
}

.related h2 {
  position: relative;
  margin-top: 0;
  margin-bottom: 2rem;
  font-size: 1.4rem;
  font-weight: 600;
}

.related h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -14px;
  width: 100%;
  height: 4px;
  background: linear-gradient(-45deg, var(--accent) 0%, var(--accent) 75%, var(--primary) 75%, var(--primary) 100%);
}

.rel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.4rem;
  margin-top: 1.2rem;
}

.rel-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: .18s;
  display: flex;
  flex-direction: column;
}

.rel-card:hover {
  transform: translateY(-4px);
}

.rel-card img {
  width: 100%;
  height: 120px;
  object-fit: cover;
}

.rel-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: .8rem 1rem 1rem;
}

/* ============================
   Back to Top Button
============================ */
#top-btn {
  position: fixed;
  bottom: 2.2rem;
  right: 2.2rem;
  border: none;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--accent);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: .18s;

  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.5s ease;
}

#top-btn.show {
  opacity: 1;
  visibility: visible;
}

#top-btn::after {
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
  content: "^";
  font-size: 2rem;
  width: 2rem;
  height: 2rem;
  top: 60%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#top-btn:hover {
  color: #fff;
  background: var(--primary);
}

@media (max-width: 768px) {
  #top-btn {
    right: 0.5rem;
  }
}