@charset "UTF-8";

/* ------------------------------
   DESIGN INSIGHT. / BASE
------------------------------ */

:root {
  --paper: #f4f2ec;
  --ink: #191919;
  --muted: #85837d;
  --line: #d8d5cc;
  --accent: #d8ff42;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Arial, "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Helvetica Neue", Arial, "Noto Sans JP", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
}

::selection {
  background: var(--accent);
  color: var(--ink);
}

/* ------------------------------
   HEADER
------------------------------ */

.site-header {
  height: 82px;
  padding: 0 5.5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 10;
}

.logo {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -1px;
}

.logo span {
  color: #9a9a00;
}

.main-nav {
  display: flex;
  gap: 38px;
}

.main-nav a {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--ink);
  transition: width 0.3s ease;
}

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

.menu-toggle {
  display: none;
}

/* ------------------------------
   HERO
------------------------------ */

.hero {
  min-height: 610px;
  padding: 36px 5.5% 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.hero-top,
.hero-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-top span,
.scroll-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.8px;
}

.hero h1 {
  font-family: var(--sans);
  font-size: clamp(76px, 15.5vw, 220px);
  line-height: 0.76;
  letter-spacing: -0.105em;
  margin: 65px 0;
  font-weight: 900;
  animation: hero-enter 0.9s ease both;
}

.hero h1 span {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
}

.hero-bottom p {
  font-size: 15px;
  line-height: 1.9;
  font-weight: 600;
}

.scroll-label {
  color: var(--muted);
}

/* ------------------------------
   SECTIONS
------------------------------ */

.latest-section,
.archive-section {
  padding: 110px 5.5%;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 55px;
}

.eyebrow {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--muted);
}

.section-heading h2 {
  font-size: clamp(38px, 6vw, 76px);
  letter-spacing: -0.07em;
  margin: 12px 0 0;
}

.section-heading h2 em,
.about-section h2 em {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.06em;
}

.section-note {
  font-size: 12px;
  color: var(--muted);
}

/* ------------------------------
   FEATURED ARTICLE
------------------------------ */

.featured-article {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 6%;
  align-items: center;
}

.featured-image {
  position: relative;
  overflow: hidden;
  background: #d9d2c4;
  aspect-ratio: 1.35 / 1;
}

.image-placeholder {
  width: 100%;
  height: 100%;
  padding: 8%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    radial-gradient(circle at 75% 35%, #f3d77d 0 12%, transparent 13%),
    linear-gradient(135deg, #b5a58a, #e5d8bb 55%, #9b8668);
  transition: transform 0.7s cubic-bezier(.2,.7,.2,1);
}

.featured-article:hover .image-placeholder {
  transform: scale(1.045);
}

.image-placeholder span {
  font-size: 10px;
  letter-spacing: 2px;
}

.image-placeholder strong {
  font-size: clamp(42px, 7vw, 90px);
  line-height: 0.8;
  letter-spacing: -0.08em;
}

.image-index {
  position: absolute;
  right: 18px;
  bottom: 15px;
  font-family: var(--serif);
  font-size: 24px;
}

.featured-info {
  padding: 20px 0;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 9px;
  letter-spacing: 1.2px;
  color: var(--muted);
}

.featured-info h3 {
  font-size: clamp(23px, 3vw, 38px);
  line-height: 1.65;
  letter-spacing: -0.06em;
  margin: 28px 0 18px;
}

.featured-info p {
  font-size: 13px;
  line-height: 2;
  color: #696761;
}

.read-more {
  display: inline-flex;
  gap: 35px;
  align-items: center;
  margin-top: 35px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
}

.read-more span {
  transition: transform 0.3s ease;
}

.featured-article:hover .read-more span {
  transform: translate(4px, -4px);
}

/* ------------------------------
   TOPICS
------------------------------ */

.topic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.topic-card {
  min-height: 210px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  position: relative;
  transition:
    background 0.35s ease,
    color 0.35s ease;
}

.topic-card:hover {
  background: var(--ink);
  color: var(--paper);
}

.topic-card > span {
  font-size: 10px;
  color: var(--muted);
}

.topic-card strong {
  margin-top: auto;
  font-size: clamp(17px, 2vw, 25px);
  letter-spacing: -1px;
}

.topic-card small {
  margin-top: 8px;
  font-size: 11px;
}

.topic-card b {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 20px;
  font-weight: 400;
}

/* ------------------------------
   ABOUT
------------------------------ */

.about-section {
  padding: 130px 12%;
  background: #e8e5dc;
  text-align: center;
}

.about-section h2 {
  font-size: clamp(40px, 7vw, 85px);
  line-height: 1.05;
  letter-spacing: -0.08em;
  margin: 35px 0;
}

.about-section p {
  max-width: 580px;
  margin: 0 auto;
  font-size: 13px;
  line-height: 2.2;
  color: #696761;
}

/* ------------------------------
   FOOTER
------------------------------ */

.site-footer {
  padding: 40px 5.5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.site-footer > span,
.site-footer small {
  font-size: 9px;
  letter-spacing: 1px;
  color: var(--muted);
}

/* ------------------------------
   ANIMATION
------------------------------ */

@keyframes hero-enter {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ------------------------------
   MOBILE
------------------------------ */

@media (max-width: 700px) {

  .site-header {
    height: 68px;
    padding: 0 6%;
  }

  .logo {
    font-size: 17px;
  }

  .menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    border: 0;
    background: none;
    padding: 10px 0 10px 10px;
    cursor: pointer;
  }

  .menu-toggle span {
    width: 25px;
    height: 1px;
    background: var(--ink);
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    padding: 28px 6%;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 25px;
  }

  .main-nav.is-open {
    display: flex;
  }

  .hero {
    min-height: 480px;
    padding: 25px 6% 35px;
  }

  .hero-top span {
    font-size: 8px;
  }

  .hero h1 {
    font-size: clamp(65px, 16vw, 115px);
    margin: 55px 0;
  }

  .hero-bottom p {
    font-size: 12px;
  }

  .scroll-label {
    font-size: 8px;
  }

  .latest-section,
  .archive-section {
    padding: 75px 6%;
  }

  .section-heading {
    margin-bottom: 35px;
  }

  .section-heading h2 {
    font-size: 43px;
  }

  .featured-article {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .featured-info h3 {
    font-size: 24px;
  }

  .topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .topic-card {
    min-height: 165px;
    padding: 15px;
  }

  .topic-card strong {
    font-size: 17px;
  }

  .about-section {
    padding: 90px 7%;
  }

  .about-section h2 {
    font-size: 43px;
  }

  .site-footer {
    padding: 35px 6%;
  }

}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}