/* =========================================================
   JWEB.co.jp — site.css
   日本のウェブが、まだ夢だったころ。
   Dark archival magazine system for early Japanese web history
   ========================================================= */

/* ---------- Reset ---------- */

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    "Hiragino Mincho ProN",
    "Yu Mincho",
    "YuMincho",
    "Noto Serif JP",
    "Times New Roman",
    serif;
  color: #f5efe3;
  background:
    radial-gradient(circle at 15% 5%, rgba(49, 255, 194, 0.11), transparent 28rem),
    radial-gradient(circle at 85% 10%, rgba(185, 39, 39, 0.12), transparent 30rem),
    linear-gradient(180deg, #061015 0%, #080b0f 42%, #11100d 100%);
  line-height: 1.85;
  letter-spacing: 0.025em;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

/* ---------- Design Tokens ---------- */

:root {
  --bg: #080b0f;
  --bg-soft: #111820;
  --bg-panel: rgba(14, 20, 25, 0.78);
  --bg-paper: #f6efe2;
  --ink: #f5efe3;
  --ink-soft: rgba(245, 239, 227, 0.76);
  --ink-muted: rgba(245, 239, 227, 0.58);
  --paper-ink: #191512;
  --paper-muted: #5c5145;
  --amber: #e8bd6c;
  --amber-soft: rgba(232, 189, 108, 0.18);
  --green: #43f0bd;
  --green-soft: rgba(67, 240, 189, 0.16);
  --red: #b72828;
  --red-soft: rgba(183, 40, 40, 0.2);
  --line: rgba(245, 239, 227, 0.16);
  --line-strong: rgba(245, 239, 227, 0.28);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.28);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --max: 1180px;
}

/* ---------- Utilities ---------- */

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  width: min(860px, calc(100% - 40px));
  margin: 0 auto;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1rem;
  color: var(--green);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: currentColor;
  opacity: 0.78;
}

.eyebrow {
  color: var(--amber);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.lede {
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
  line-height: 1.95;
}

.muted {
  color: var(--ink-muted);
}

.paper-text {
  color: var(--paper-ink);
}

.center {
  text-align: center;
}

.spacer-sm {
  height: 2rem;
}

.spacer-md {
  height: 4rem;
}

.spacer-lg {
  height: 6rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background:
    linear-gradient(180deg, rgba(6, 11, 15, 0.94), rgba(6, 11, 15, 0.76));
  border-bottom: 1px solid rgba(245, 239, 227, 0.12);
}

.navbar {
  width: min(1320px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-width: max-content;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(67, 240, 189, 0.5);
  border-radius: 14px;
  color: var(--green);
  background:
    radial-gradient(circle at 40% 30%, rgba(67, 240, 189, 0.25), transparent 60%),
    rgba(3, 9, 12, 0.85);
  box-shadow: 0 0 30px rgba(67, 240, 189, 0.16);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-title {
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 1.08rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.logo-subtitle {
  color: var(--ink-muted);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.nav-links a {
  padding: 0.55rem 0.78rem;
  border: 1px solid transparent;
  border-radius: 999px;
  color: rgba(245, 239, 227, 0.82);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  transition:
    color 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    transform 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: #ffffff;
  background: rgba(67, 240, 189, 0.1);
  border-color: rgba(67, 240, 189, 0.36);
  transform: translateY(-1px);
}

.nav-links a.is-active {
  color: #071015;
  background: var(--green);
  border-color: var(--green);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(245, 239, 227, 0.2);
  border-radius: 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 999px;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 760px;
  display: grid;
  align-items: stretch;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid rgba(245, 239, 227, 0.12);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    linear-gradient(90deg, rgba(4, 8, 12, 0.96) 0%, rgba(4, 8, 12, 0.84) 36%, rgba(4, 8, 12, 0.42) 68%, rgba(4, 8, 12, 0.72) 100%),
    var(--hero-image, url("https://jweb.co.jp/images/jweb-home-hero-japanese-web-before-platforms-crt-tokyo-night.jpg"));
  background-size: cover;
  background-position: center;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(rgba(67, 240, 189, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(67, 240, 189, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, black, transparent 88%);
  pointer-events: none;
}

.hero-inner {
  width: min(1320px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(5rem, 9vw, 9rem) 0 clamp(4rem, 7vw, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
}

.hero-copy {
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 0.85rem;
  margin-bottom: 1.4rem;
  border: 1px solid rgba(67, 240, 189, 0.4);
  border-radius: 999px;
  color: var(--green);
  background: rgba(3, 10, 13, 0.72);
  box-shadow: 0 0 36px rgba(67, 240, 189, 0.11);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(3rem, 8.2vw, 7.8rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.06em;
  text-wrap: balance;
  text-shadow: 0 18px 70px rgba(0, 0, 0, 0.72);
}

.hero h1 .accent {
  color: var(--green);
  text-shadow: 0 0 30px rgba(67, 240, 189, 0.32);
}

.hero p {
  max-width: 760px;
  margin: 1.8rem 0 0;
  color: rgba(245, 239, 227, 0.84);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  line-height: 2.05;
  text-shadow: 0 12px 35px rgba(0, 0, 0, 0.75);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.3rem;
}

.hero-card {
  position: relative;
  padding: 1.5rem;
  border: 1px solid rgba(245, 239, 227, 0.16);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(13, 23, 29, 0.84), rgba(9, 12, 15, 0.72));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-card::before {
  content: "ARCHIVE";
  position: absolute;
  top: -12px;
  right: 22px;
  padding: 0.16rem 0.55rem;
  border: 1px solid rgba(232, 189, 108, 0.42);
  border-radius: 999px;
  color: var(--amber);
  background: #080b0f;
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.hero-card h2 {
  margin: 0 0 0.8rem;
  color: var(--amber);
  font-size: 1.1rem;
  line-height: 1.35;
}

.hero-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
  line-height: 1.8;
  text-shadow: none;
}

.hero-meta {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.2rem;
}

.hero-meta span {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(245, 239, 227, 0.12);
  color: var(--ink-muted);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.hero-meta strong {
  color: var(--green);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.78rem 1.15rem;
  border: 1px solid rgba(245, 239, 227, 0.2);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.83rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(67, 240, 189, 0.58);
  background: rgba(67, 240, 189, 0.12);
}

.btn-primary {
  color: #061015;
  background: var(--green);
  border-color: var(--green);
  box-shadow: 0 0 34px rgba(67, 240, 189, 0.22);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: #061015;
  background: #79ffd6;
}

.btn-amber {
  color: #15100b;
  background: var(--amber);
  border-color: var(--amber);
}

.btn-red {
  color: #ffffff;
  background: var(--red);
  border-color: var(--red);
}

/* ---------- Sections ---------- */

.section {
  position: relative;
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.section-tight {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}

.section-heading {
  max-width: 820px;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.section-heading.center {
  margin-left: auto;
  margin-right: auto;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4.8vw, 4.7rem);
  line-height: 1.12;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.section-heading p {
  margin: 1.1rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.6vw, 1.22rem);
}

.divider {
  width: min(var(--max), calc(100% - 40px));
  height: 1px;
  margin: 0 auto;
  background:
    linear-gradient(90deg, transparent, rgba(67, 240, 189, 0.42), rgba(232, 189, 108, 0.28), transparent);
}

/* ---------- Image Background Helpers ---------- */

.bg-home {
  --hero-image: url("https://jweb.co.jp/images/jweb-home-hero-japanese-web-before-platforms-crt-tokyo-night.jpg");
}

.bg-history {
  --hero-image: url("https://jweb.co.jp/images/jweb-history-timeline-bbs-modem-domain-newspaper-floppy.jpg");
}

.bg-early-web {
  --hero-image: url("https://jweb.co.jp/images/jweb-early-web-handmade-homepage-html-screen-glow.jpg");
}

.bg-bbs {
  --hero-image: url("https://jweb.co.jp/images/jweb-bbs-culture-night-office-message-board-japan.jpg");
}

.bg-homepages {
  --hero-image: url("https://jweb.co.jp/images/jweb-homepages-personal-sites-identity-1990s-japan.jpg");
}

.bg-search {
  --hero-image: url("https://jweb.co.jp/images/jweb-search-before-google-metabook-natural-language.jpg");
}

.bg-email {
  --hero-image: url("https://jweb.co.jp/images/jweb-email-felt-like-magic-blue-screen-message.jpg");
}

.bg-domains {
  --hero-image: url("https://jweb.co.jp/images/jweb-domains-as-addresses-glowing-cojp-wall.jpg");
}

.bg-japan-times {
  --hero-image: url("https://jweb.co.jp/images/jweb-japan-times-floppy-disk-newspaper-search.jpg");
}

.bg-metabook {
  --hero-image: url("https://jweb.co.jp/images/jweb-metabook-search-engine-floppy-disk-archive.jpg");
}

.bg-founder {
  --hero-image: url("https://jweb.co.jp/images/jweb-founder-brad-bartz-japan-internet-speech-bbs.jpg");
}

.bg-archive {
  --hero-image: url("https://jweb.co.jp/images/jweb-archive-desk-floppy-newspapers-domain-records.jpg");
}

.bg-about {
  --hero-image: url("https://jweb.co.jp/images/jweb-about-editorial-archive-desk-early-internet.jpg");
}

.bg-advertise {
  --hero-image: url("https://jweb.co.jp/images/jweb-advertise-digital-archive-media-kit-glowing-web.jpg");
}

.bg-disclaimer {
  --hero-image: url("https://jweb.co.jp/images/jweb-disclaimer-warning-archive-records-red-stamp.jpg");
}

.bg-privacy {
  --hero-image: url("https://jweb.co.jp/images/jweb-privacy-lock-data-old-web-terminal.jpg");
}

.bg-license {
  --hero-image: url("https://jweb.co.jp/images/jweb-license-rights-documents-domain-seal.jpg");
}

.bg-sitemap {
  --hero-image: url("https://jweb.co.jp/images/jweb-sitemap-network-map-early-web-nodes.jpg");
}

/* ---------- Cards ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.card-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  min-height: 100%;
  overflow: hidden;
  border: 1px solid rgba(245, 239, 227, 0.14);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(19, 27, 34, 0.88), rgba(10, 13, 16, 0.86));
  box-shadow: var(--shadow-soft);
}

.card:hover .card-image img {
  transform: scale(1.045);
}

.card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0c1115;
}

.card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 20%, rgba(0, 0, 0, 0.58) 100%),
    radial-gradient(circle at 20% 10%, rgba(67, 240, 189, 0.16), transparent 48%);
  pointer-events: none;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 450ms ease;
}

.card-body {
  padding: 1.35rem;
}

.card-body h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.16rem, 2vw, 1.48rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.card-body p {
  margin: 0.8rem 0 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.78;
}

.card-link {
  display: inline-flex;
  margin-top: 1rem;
  color: var(--green);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.card-link::after {
  content: "→";
  margin-left: 0.45rem;
}

/* ---------- Feature Cards ---------- */

.feature-wall {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.25rem;
}

.feature-large {
  min-height: 560px;
}

.feature-large .card-image {
  aspect-ratio: auto;
  height: 100%;
  min-height: 560px;
}

.feature-large .card-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background:
    linear-gradient(180deg, transparent, rgba(5, 8, 10, 0.94) 30%);
}

.feature-large h3 {
  max-width: 720px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.12;
}

.feature-stack {
  display: grid;
  gap: 1.25rem;
}

/* ---------- Paper / Archive Blocks ---------- */

.paper-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 4vw, 3rem);
  border-radius: var(--radius-xl);
  color: var(--paper-ink);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.34), transparent 45%),
    var(--bg-paper);
  box-shadow: var(--shadow);
}

.paper-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(25, 21, 18, 0.04) 1px, transparent 1px);
  background-size: 100% 32px;
  pointer-events: none;
}

.paper-panel .kicker,
.paper-panel .eyebrow {
  color: var(--red);
}

.paper-panel h2,
.paper-panel h3 {
  position: relative;
  margin-top: 0;
  color: var(--paper-ink);
}

.paper-panel p,
.paper-panel li {
  position: relative;
  color: var(--paper-muted);
}

.paper-panel a {
  color: #8b1f1f;
  font-weight: 800;
}

.archive-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(1.25rem, 4vw, 3rem);
  align-items: center;
}

.archive-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.archive-image img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

.archive-image::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(245, 239, 227, 0.18);
  border-radius: inherit;
  pointer-events: none;
}

/* ---------- Timeline ---------- */

.timeline {
  position: relative;
  display: grid;
  gap: 1.1rem;
  margin-top: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--green), rgba(232, 189, 108, 0.35), transparent);
}

.timeline-item {
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 3.2rem;
  border: 1px solid rgba(245, 239, 227, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.045);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 0.7rem;
  top: 1.55rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 20px rgba(67, 240, 189, 0.42);
}

.timeline-year {
  color: var(--amber);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.timeline-item h3 {
  margin: 0.22rem 0 0;
  font-size: 1.35rem;
}

.timeline-item p {
  margin: 0.55rem 0 0;
  color: var(--ink-soft);
}

/* ---------- Article Pages ---------- */

.article {
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.article-layout {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 760px) 300px;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.article-body {
  min-width: 0;
}

.article-body h2 {
  margin: 2.4rem 0 1rem;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1.28;
  letter-spacing: -0.035em;
}

.article-body h3 {
  margin: 2rem 0 0.85rem;
  color: var(--amber);
  font-size: clamp(1.35rem, 2.2vw, 1.9rem);
  line-height: 1.35;
}

.article-body p {
  margin: 1.15rem 0;
  color: var(--ink-soft);
  font-size: 1.06rem;
}

.article-body strong {
  color: var(--ink);
}

.article-body blockquote {
  margin: 2rem 0;
  padding: 1.4rem 1.6rem;
  border-left: 4px solid var(--green);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--ink);
  background: rgba(67, 240, 189, 0.08);
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  line-height: 1.75;
}

.article-body ul,
.article-body ol {
  padding-left: 1.3rem;
  color: var(--ink-soft);
}

.article-body li + li {
  margin-top: 0.55rem;
}

.article-sidebar {
  position: sticky;
  top: 98px;
  display: grid;
  gap: 1rem;
}

.sidebar-box {
  padding: 1.2rem;
  border: 1px solid rgba(245, 239, 227, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.045);
}

.sidebar-box h3 {
  margin: 0 0 0.8rem;
  color: var(--green);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.sidebar-box a {
  display: block;
  padding: 0.55rem 0;
  border-top: 1px solid rgba(245, 239, 227, 0.1);
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.sidebar-box a:hover {
  color: var(--green);
}

/* ---------- Quote / Manifesto ---------- */

.manifesto {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 7vw, 6rem);
  border: 1px solid rgba(232, 189, 108, 0.26);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 12% 20%, rgba(67, 240, 189, 0.14), transparent 28rem),
    radial-gradient(circle at 90% 80%, rgba(183, 40, 40, 0.14), transparent 28rem),
    linear-gradient(135deg, rgba(23, 28, 34, 0.95), rgba(8, 11, 15, 0.96));
  box-shadow: var(--shadow);
}

.manifesto::after {
  content: "JWEB";
  position: absolute;
  right: -0.15em;
  bottom: -0.34em;
  color: rgba(245, 239, 227, 0.035);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: clamp(6rem, 20vw, 17rem);
  font-weight: 900;
  letter-spacing: -0.08em;
  pointer-events: none;
}

.manifesto h2 {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0;
  font-size: clamp(2.35rem, 6vw, 6rem);
  line-height: 1.08;
  letter-spacing: -0.06em;
}

.manifesto p {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 1.6rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

/* ---------- Link Lists / Sitemap ---------- */

.link-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.link-box {
  padding: 1.1rem;
  border: 1px solid rgba(245, 239, 227, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.045);
}

.link-box h3 {
  margin: 0 0 0.7rem;
  color: var(--amber);
  font-size: 1.08rem;
}

.link-box a {
  display: block;
  padding: 0.45rem 0;
  border-top: 1px solid rgba(245, 239, 227, 0.08);
  color: var(--ink-soft);
  font-size: 0.94rem;
}

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

/* ---------- Gallery ---------- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(245, 239, 227, 0.14);
  border-radius: var(--radius-lg);
  background: #0b1014;
  cursor: zoom-in;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 420ms ease;
}

.gallery-item:hover img {
  transform: scale(1.045);
}

.gallery-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.82));
  font-size: 0.9rem;
}

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

.site-footer {
  position: relative;
  padding: clamp(3rem, 6vw, 5rem) 0 2rem;
  border-top: 1px solid rgba(245, 239, 227, 0.12);
  background:
    radial-gradient(circle at 20% 10%, rgba(67, 240, 189, 0.09), transparent 24rem),
    #05080b;
}

.footer-grid {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.9fr 0.9fr;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.footer-brand h2 {
  margin: 0;
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.1em;
}

.footer-brand p {
  max-width: 430px;
  margin: 0.9rem 0 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.footer-col h3 {
  margin: 0 0 0.8rem;
  color: var(--green);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-col a,
.footer-col span {
  display: block;
  padding: 0.28rem 0;
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.footer-col a:hover {
  color: var(--green);
}

.footer-bottom {
  width: min(var(--max), calc(100% - 40px));
  margin: 2.5rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(245, 239, 227, 0.1);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: rgba(245, 239, 227, 0.48);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.78rem;
}

/* ---------- Forms ---------- */

.form-panel {
  display: grid;
  gap: 1rem;
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid rgba(245, 239, 227, 0.14);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.045);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

label {
  display: grid;
  gap: 0.4rem;
  color: var(--ink-soft);
  font-family:
    "Inter",
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid rgba(245, 239, 227, 0.18);
  border-radius: 14px;
  color: var(--ink);
  background: rgba(0, 0, 0, 0.24);
  padding: 0.85rem 0.95rem;
  outline: none;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  border-color: rgba(67, 240, 189, 0.7);
  box-shadow: 0 0 0 3px rgba(67, 240, 189, 0.12);
}

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

@media (max-width: 1040px) {
  .hero-inner {
    grid-template-columns: 1fr;
    align-items: end;
  }

  .hero-card {
    max-width: 620px;
  }

  .card-grid,
  .card-grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-wall,
  .archive-grid,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    position: static;
  }

  .link-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .navbar {
    min-height: 68px;
  }

  .menu-toggle {
    display: inline-block;
  }

  .nav-links {
    position: absolute;
    top: 68px;
    left: 16px;
    right: 16px;
    display: none;
    padding: 1rem;
    border: 1px solid rgba(245, 239, 227, 0.14);
    border-radius: 22px;
    background: rgba(6, 11, 15, 0.96);
    box-shadow: var(--shadow);
  }

  body.nav-open .nav-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-links a {
    border-color: rgba(245, 239, 227, 0.1);
    background: rgba(255, 255, 255, 0.045);
    text-align: center;
  }

  .hero {
    min-height: 680px;
  }

  .hero::before {
    background:
      linear-gradient(180deg, rgba(4, 8, 12, 0.88) 0%, rgba(4, 8, 12, 0.82) 42%, rgba(4, 8, 12, 0.95) 100%),
      var(--hero-image, url("https://jweb.co.jp/images/jweb-home-hero-japanese-web-before-platforms-crt-tokyo-night.jpg"));
    background-size: cover;
    background-position: center top;
  }

  .hero-inner {
    width: min(100% - 30px, 720px);
    padding-top: 4.2rem;
  }

  .hero h1 {
    font-size: clamp(2.65rem, 13vw, 4.8rem);
  }

  .hero p {
    font-size: 1.05rem;
  }

  .card-grid,
  .card-grid.two,
  .card-grid.four,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .feature-large,
  .feature-large .card-image {
    min-height: 420px;
  }

  .manifesto {
    padding: 2rem;
  }

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

  .footer-bottom {
    display: grid;
  }
}

@media (max-width: 560px) {
  .wrap,
  .narrow,
  .article-layout,
  .footer-grid,
  .footer-bottom {
    width: min(100% - 28px, var(--max));
  }

  .logo-subtitle {
    display: none;
  }

  .logo-mark {
    width: 42px;
    height: 42px;
  }

  body.nav-open .nav-links {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 640px;
  }

  .hero-inner {
    width: min(100% - 28px, 720px);
    padding-bottom: 3rem;
  }

  .hero-actions {
    display: grid;
  }

  .btn {
    width: 100%;
  }

  .section {
    padding: 3.5rem 0;
  }

  .section-heading h2 {
    font-size: clamp(2rem, 11vw, 3.35rem);
  }

  .archive-image img {
    min-height: 300px;
  }

  .link-wall,
  .footer-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .paper-panel {
    border-radius: 22px;
  }
}

/* ---------- Accessibility ---------- */

:focus-visible {
  outline: 3px solid rgba(67, 240, 189, 0.78);
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}

/* ---------- Print ---------- */

@media print {
  body {
    color: #111;
    background: #fff;
  }

  .site-header,
  .site-footer,
  .hero-actions,
  .menu-toggle {
    display: none !important;
  }

  .hero {
    min-height: auto;
    border: 0;
  }

  .hero::before,
  .hero::after {
    display: none;
  }

  .hero-inner,
  .wrap,
  .narrow,
  .article-layout {
    width: 100%;
  }

  .card,
  .paper-panel,
  .manifesto,
  .timeline-item {
    box-shadow: none;
    border-color: #bbb;
  }
}

.timeline-section {
  position: relative;
  overflow: hidden;
}

.timeline-grid {
  align-items: stretch;
}

.timeline-image {
  min-height: 520px;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

.timeline-image img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
  display: block;
}

.timeline-copy {
  background: rgba(255, 248, 232, 0.96);
  color: #1f1710;
  border: 1px solid rgba(92, 56, 24, 0.18);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}

.timeline-copy h2,
.timeline-copy h3,
.timeline-copy p,
.timeline-copy span {
  color: #1f1710;
}

.timeline-copy h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.timeline-copy > p {
  font-size: 1.08rem;
  line-height: 2;
  font-weight: 600;
}

.timeline-chapters {
  display: grid;
  gap: 1rem;
  margin: 2rem 0;
}

.timeline-chapters article {
  padding: 1.1rem 1.15rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(80, 50, 24, 0.14);
}

.timeline-chapters article span {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  font-weight: 900;
  color: #9a2d1f;
}

.timeline-chapters article h3 {
  font-size: 1.2rem;
  line-height: 1.45;
  margin: 0 0 0.35rem;
}

.timeline-chapters article p {
  margin: 0;
  line-height: 1.8;
}

@media (max-width: 860px) {
  .timeline-image,
  .timeline-image img {
    min-height: 320px;
  }

  .timeline-copy {
    padding: 1.4rem;
  }

  .timeline-copy > p {
    font-size: 1rem;
  }
}