/*
Theme Name: Paper001 Blog
Theme URI: https://digivice.jp/blog/
Author: digivice Inc.
Description: A WordPress blog theme translated from the GPIE Keynote paper001 design system.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 8.1
Text Domain: paper001-blog
*/

:root {
  --ink: #07070c;
  --ink-2: #0c0d15;
  --ink-3: #11131d;
  --paper: #f4f3ee;
  --paper-dim: #b7b8c4;
  --paper-mute: #747785;
  --line: rgba(255,255,255,0.10);
  --line-soft: rgba(255,255,255,0.06);
  --cyan: #4fe3d0;
  --blue: #5b8cff;
  --violet: #9a6bff;
  --amber: #f2b34a;
  --rose: #ff6a8b;
  --green: #6ee79b;
  --accent: var(--cyan);
  --accent-2: var(--violet);
  --maxw: 1120px;
  --serif: "Shippori Mincho", "Noto Serif JP", serif;
  --jp: "Noto Sans JP", system-ui, sans-serif;
  --en: "Space Grotesk", "Inter", system-ui, sans-serif;
  --mono: "Space Mono", "Space Grotesk", monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--jp);
  color: var(--paper);
  background: var(--ink);
  line-height: 1.9;
  overflow-x: hidden;
  font-feature-settings: "palt" 1;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(900px 540px at 12% 7%, rgba(79,227,208,0.13), transparent 62%),
    radial-gradient(760px 520px at 92% 15%, rgba(154,107,255,0.13), transparent 64%),
    radial-gradient(840px 520px at 78% 92%, rgba(91,140,255,0.08), transparent 68%),
    linear-gradient(180deg, #07070c 0%, #0c0d15 56%, #07070c 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.05;
  background-image:
    linear-gradient(rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}
::selection { background: var(--accent); color: var(--ink); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:hover { color: var(--paper); }
img { max-width: 100%; height: auto; }

.blog-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--violet));
  transition: width .15s linear;
}
.blog-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 28px;
  background: linear-gradient(180deg, rgba(7,7,12,0.90), rgba(7,7,12,0.18));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.blog-brand {
  display: inline-flex;
  flex-direction: column;
  color: var(--paper);
  text-decoration: none;
  font-family: var(--en);
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1.2;
  text-transform: uppercase;
}
.blog-brand small {
  margin-top: 4px;
  color: var(--paper-mute);
  font-weight: 400;
  letter-spacing: 0.14em;
  font-size: 0.67rem;
}
.blog-nav { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }
.blog-nav a {
  font-family: var(--mono);
  color: var(--paper-dim);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
}
.blog-nav a:hover { color: var(--accent); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.site-main { position: relative; z-index: 2; }
.hero {
  min-height: 62vh;
  display: flex;
  align-items: center;
  padding: 150px 0 92px;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
  overflow: hidden;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: .5;
  pointer-events: none;
}
.hero::before { width: 520px; height: 520px; left: -140px; top: -110px; background: rgba(79,227,208,.24); }
.hero::after { width: 440px; height: 440px; right: -130px; bottom: -140px; background: rgba(154,107,255,.22); }
.hero-inner { position: relative; z-index: 2; max-width: 930px; }
.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-family: var(--en);
  font-size: .76rem;
  letter-spacing: .34em;
  text-transform: uppercase;
}
.hero-title,
.entry-title {
  margin: 0;
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(2.35rem, 7vw, 5.6rem);
  line-height: 1.12;
  font-weight: 800;
  text-wrap: balance;
}
.hero-title .hl,
.entry-title .hl { color: var(--accent); text-shadow: 0 0 40px color-mix(in srgb, var(--accent) 55%, transparent); }
.hero-lede {
  max-width: min(920px, 100%);
  margin: 28px 0 0;
  color: var(--paper-dim);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 2.08;
  text-wrap: pretty;
  line-break: strict;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.site-message {
  display: grid;
  gap: 8px;
}
.site-message strong {
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(1.08rem, 2vw, 1.55rem);
  line-height: 1.45;
  font-weight: 700;
}
.site-message span {
  display: block;
  max-width: min(980px, 100%);
}
.hero-meta {
  max-width: min(980px, 100%);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 6px 13px;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, transparent);
  border-radius: 999px;
  color: var(--paper-dim);
  background: rgba(255,255,255,.035);
  font-family: var(--mono);
  font-size: .69rem;
  letter-spacing: .08em;
}

.content-band { padding: 74px 0 96px; }
.content-band > .wrap { max-width: 930px; }
.post-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.post-card {
  position: relative;
  overflow: hidden;
  min-height: 320px;
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(255,255,255,0.06), rgba(255,255,255,0.015));
  box-shadow: 0 24px 80px -64px color-mix(in srgb, var(--accent) 80%, transparent);
  transition: transform .45s var(--ease), border-color .3s, box-shadow .45s;
}
.post-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: .72;
}
.post-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: 0 30px 90px -54px color-mix(in srgb, var(--accent) 92%, transparent);
}
.post-card .meta {
  margin-bottom: 18px;
  color: var(--paper-mute);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.post-card h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.6vw, 2.25rem);
  line-height: 1.32;
}
.post-card h2 a { color: var(--paper); text-decoration: none; }
.post-card h2 a:hover { color: var(--accent); }
.post-card .excerpt { color: var(--paper-dim); font-size: .94rem; }
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  color: var(--accent);
  font-family: var(--en);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  font-size: .75rem;
}
.read-more::after { content: "→"; transition: transform .2s var(--ease); }
.read-more:hover::after { transform: translateX(4px); }

.entry-hero {
  min-height: auto;
  align-items: flex-start;
  padding-top: 122px;
  padding-bottom: 32px;
}
.entry-shell {
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 28px 78px;
}
.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
  color: var(--paper-mute);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.entry-content {
  color: var(--paper-dim);
  font-size: clamp(1rem, 1.24vw, 1.08rem);
  line-height: 2.08;
}
.entry-content h1,
.entry-content h2,
.entry-content h3,
.entry-content h4 {
  margin: 2.2em 0 .75em;
  color: var(--paper);
  font-family: var(--serif);
  line-height: 1.35;
  text-wrap: balance;
}
.entry-content h2 {
  padding-left: 18px;
  border-left: 2px solid var(--accent);
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}
.entry-content h3 { font-size: clamp(1.28rem, 2.2vw, 1.72rem); }
.entry-content p { margin: 0 0 1.35em; }
.entry-content strong { color: var(--paper); }
.entry-content ul,
.entry-content ol { padding-left: 1.35em; margin: 1.2em 0 1.6em; }
.entry-content li { margin: .45em 0; }
.entry-content blockquote {
  margin: 2em 0;
  padding: 16px 0 16px 24px;
  border-left: 2px solid var(--accent);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 1.18em;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent);
}
.entry-content pre,
.entry-content code {
  font-family: var(--mono);
  background: rgba(255,255,255,.07);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
}
.entry-content code { padding: .12em .36em; }
.entry-content pre { padding: 18px; overflow-x: auto; }
.wp-block-separator { border-color: var(--line); }
.wp-block-image img { border-radius: 16px; border: 1px solid var(--line); }

.comments-shell {
  max-width: 860px;
  margin: 0 auto 86px;
  padding: 0 28px;
}
.comment-login-panel {
  margin-bottom: 18px;
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, transparent);
  border-radius: 18px;
  background:
    radial-gradient(circle at 12% 10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 42%),
    linear-gradient(145deg, rgba(255,255,255,.064), rgba(255,255,255,.018));
}
.comment-login-panel h2 {
  margin: 0 0 10px;
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.8vw, 2.15rem);
  line-height: 1.28;
}
.comment-login-panel p:not(.eyebrow) {
  margin: 0 0 18px;
  color: var(--paper-dim);
}
.social-comment-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 760px;
  margin-top: 20px;
}
.social-comment-login {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 58px;
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.16);
  color: var(--paper);
  background: linear-gradient(145deg, rgba(255,255,255,.13), rgba(255,255,255,.045));
  font-family: var(--jp);
  font-size: .92rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 18px 58px -46px rgba(255,255,255,.72);
  overflow: hidden;
  transition: transform .22s var(--ease), border-color .22s, background .22s, box-shadow .22s;
}
.social-comment-login::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0%, rgba(255,255,255,.18) 42%, transparent 72%);
  transform: translateX(-120%);
  transition: transform .55s var(--ease);
  pointer-events: none;
}
.social-comment-login:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 54%, transparent);
  box-shadow: 0 24px 72px -48px color-mix(in srgb, var(--accent) 90%, transparent);
}
.social-comment-login:hover::after { transform: translateX(120%); }
.social-comment-login::before {
  content: "G";
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: #4285f4;
  background: #fff;
  font-family: var(--en);
  font-weight: 900;
  box-shadow: 0 0 0 1px rgba(255,255,255,.28);
}
.social-comment-login.google {
  color: #111827;
  background: linear-gradient(145deg, #fff, #e9eef7);
  border-color: rgba(255,255,255,.72);
}
.social-comment-login.facebook {
  color: #fff;
  background: linear-gradient(145deg, #2f8cff, #115ecb);
  border-color: rgba(99,166,255,.82);
  box-shadow: 0 18px 64px -44px #1877f2;
}
.social-comment-login.facebook::before {
  content: "f";
  color: #1877f2;
  background: #fff;
}
.social-comment-login.x {
  color: #fff;
  background: linear-gradient(145deg, #141414, #000);
  border-color: rgba(255,255,255,.26);
  box-shadow: 0 18px 64px -44px rgba(255,255,255,.75);
}
.social-comment-login.x::before {
  content: "X";
  color: #050505;
  background: #fff;
}
.comments-area,
#respond {
  position: relative;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: 18px;
  background:
    linear-gradient(145deg, rgba(255,255,255,.060), rgba(255,255,255,.018)),
    rgba(7,7,12,.42);
  box-shadow: 0 26px 90px -64px color-mix(in srgb, var(--accent) 88%, transparent);
  backdrop-filter: blur(10px);
}
.comments-area { padding: 30px 28px; }
#respond { padding: 28px; }
.comments-title,
.comment-reply-title {
  margin: 0 0 18px;
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.8vw, 2.2rem);
  line-height: 1.28;
}
.comment-notes,
.logged-in-as,
.must-log-in,
.comment-form-cookies-consent,
.comment-form label {
  color: var(--paper-dim);
  font-size: .9rem;
}
.must-log-in a,
.logged-in-as a {
  color: var(--accent);
}
.comment-form {
  display: grid;
  gap: 14px;
}
.comment-form textarea,
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--paper);
  background: rgba(255,255,255,.045);
  font: inherit;
}
.comment-form textarea:focus,
.comment-form input:focus {
  outline: 1px solid var(--accent);
  border-color: color-mix(in srgb, var(--accent) 60%, transparent);
}
.form-submit .submit {
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--ink);
  background: var(--accent);
  font-family: var(--en);
  font-weight: 700;
  letter-spacing: .05em;
  cursor: pointer;
}
.comment-list {
  margin: 0 0 28px;
  padding-left: 1.2em;
  color: var(--paper-dim);
}
.comment-list .comment-body {
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
@media (max-width: 560px) {
  .comments-shell { padding: 0 20px; }
  .comment-login-panel,
  .comments-area,
  #respond { padding: 22px; }
  .social-comment-actions { grid-template-columns: 1fr; max-width: none; }
  .social-comment-login { min-height: 54px; white-space: normal; }
}

.post-nav,
.pagination {
  max-width: 860px;
  margin: 0 auto 80px;
  padding: 0 28px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--paper-dim);
}
.post-nav a,
.pagination a { color: var(--paper); }

.blog-footer {
  position: relative;
  overflow: hidden;
  padding: 96px 0 50px;
  color: var(--paper-dim);
  border-top: 1px solid var(--line-soft);
}
.blog-footer-bg {
  position: absolute;
  inset: 0;
  background: url('https://www.digivice.jp/images/hero-ax.jpg') center/cover no-repeat;
  opacity: .38;
  transform: scale(1.04);
}
.blog-footer-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 16% 18%, rgba(79,227,208,.16), transparent 38%),
    linear-gradient(180deg, rgba(7,7,12,.76), rgba(7,7,12,.94));
}
.blog-footer-inner { position: relative; z-index: 2; max-width: 900px; }
.blog-footer h2 {
  margin: 0 0 22px;
  color: var(--paper);
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 4.25rem);
  line-height: 1.16;
  text-wrap: balance;
}
.blog-footer p { max-width: 78ch; margin: 0 0 16px; line-height: 2.05; }
.footer-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 28px; }
.footer-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 17px;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, transparent);
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  color: var(--paper);
  font-family: var(--en);
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .04em;
  text-decoration: none;
  transition: transform .22s var(--ease), background .22s, border-color .22s;
}
.footer-btn.primary { background: var(--accent); color: var(--ink); border-color: var(--accent); }
.footer-btn:hover { transform: translateY(-2px); background: rgba(255,255,255,.12); color: var(--paper); }
.footer-btn.primary:hover { background: var(--paper); color: var(--ink); }
.footer-contact,
.copyright { list-style: none; margin: 0; padding: 0; }
.footer-contact { display: grid; gap: 8px; color: var(--paper-dim); font-size: .9rem; }
.footer-contact a { color: var(--accent); }
.copyright { margin-top: 28px; color: var(--paper-mute); font-family: var(--en); font-size: .78rem; letter-spacing: .06em; }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 820px) {
  .blog-topbar { position: sticky; padding: 14px 18px; align-items: flex-start; }
  .blog-nav { gap: 10px; }
  .blog-nav a { font-size: .64rem; }
  .wrap { padding: 0 20px; }
  .hero { min-height: auto; padding: 104px 0 70px; }
  .post-grid { grid-template-columns: 1fr; }
  .post-card { min-height: 0; }
}
@media (max-width: 560px) {
  .blog-topbar { flex-direction: column; }
  .entry-shell { padding-left: 20px; padding-right: 20px; }
  .hero-title, .entry-title { font-size: clamp(2.05rem, 11vw, 3.4rem); }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* =========================================================
   Paper001 Blog HTML5 VFX Layer
   ========================================================= */
.blog-aura {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .82;
  mix-blend-mode: screen;
}
.hero-inner { position: relative; }
.hero-title { position: relative; }
.hero-title::after {
  content: "";
  display: block;
  width: min(560px, 100%);
  height: 2px;
  margin-top: 24px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), transparent);
  box-shadow: 0 0 32px color-mix(in srgb, var(--accent) 62%, transparent);
  transform-origin: left center;
  animation: signalSweep 4.8s var(--ease) infinite;
}
@keyframes signalSweep {
  0%, 100% { transform: scaleX(.36); opacity: .58; }
  45% { transform: scaleX(1); opacity: 1; }
}
.hero-vfx-panel {
  position: relative;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  width: min(560px, 100%);
  margin-top: 28px;
  padding: 16px 18px;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, transparent);
  border-radius: 18px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), rgba(255,255,255,.035)),
    rgba(7,7,12,.36);
  box-shadow: 0 24px 84px -58px color-mix(in srgb, var(--accent) 98%, transparent);
  overflow: hidden;
  transform: translateZ(0);
}
.hero-vfx-panel.compact { width: min(460px, 100%); margin-top: 24px; }
.hero-vfx-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent),
    repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0 1px, transparent 1px 24px);
  transform: translateX(-120%);
  animation: panelScan 5.6s linear infinite;
}
@keyframes panelScan { to { transform: translateX(120%); } }
.vfx-orbit {
  position: relative;
  width: 74px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: inset 0 0 24px rgba(79,227,208,.12), 0 0 28px rgba(79,227,208,.18);
}
.vfx-orbit::before,
.vfx-orbit::after {
  content: "";
  position: absolute;
  inset: 13px;
  border-radius: 50%;
  border: 1px dashed color-mix(in srgb, var(--accent-2) 56%, transparent);
  animation: orbitSpin 12s linear infinite;
}
.vfx-orbit::after { inset: 24px; border-style: solid; animation-duration: 8s; animation-direction: reverse; }
.vfx-orbit span {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px var(--accent);
}
.vfx-orbit span:nth-child(1) { left: 50%; top: -4px; animation: nodePulse 1.8s infinite; }
.vfx-orbit span:nth-child(2) { right: 6px; bottom: 12px; background: var(--violet); animation: nodePulse 2.4s .3s infinite; }
.vfx-orbit span:nth-child(3) { left: 8px; bottom: 9px; background: var(--blue); animation: nodePulse 2.2s .6s infinite; }
@keyframes orbitSpin { to { transform: rotate(360deg); } }
@keyframes nodePulse { 0%,100% { opacity: .42; transform: scale(.82); } 50% { opacity: 1; transform: scale(1.32); } }
.vfx-copy { position: relative; z-index: 1; display: grid; gap: 3px; }
.vfx-copy strong {
  color: var(--paper);
  font-family: var(--en);
  font-size: .84rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.vfx-copy em {
  color: var(--paper-mute);
  font-family: var(--mono);
  font-size: .7rem;
  font-style: normal;
  letter-spacing: .12em;
}
.post-card {
  transform-style: preserve-3d;
  will-change: transform;
}
.post-card.is-tilting {
  transition: transform .12s linear, border-color .25s, box-shadow .25s;
}
.post-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  pointer-events: none;
  background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(79,227,208,.16), transparent 34%);
  opacity: 0;
  transition: opacity .22s;
}
.post-card:hover::after { opacity: 1; }
.entry-content h2,
.entry-content h3 { position: relative; }
.entry-content h2::after,
.entry-content h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: .65;
}
@media (max-width: 700px) {
  .hero-vfx-panel { grid-template-columns: 58px minmax(0, 1fr); padding: 14px; }
  .vfx-orbit { width: 52px; }
  .vfx-copy strong { font-size: .72rem; }
  .vfx-copy em { font-size: .6rem; }
  .blog-aura { opacity: .58; }
}
@media (prefers-reduced-motion: reduce) {
  .blog-aura { opacity: .34; }
  .hero-title::after,
  .hero-vfx-panel::before,
  .vfx-orbit::before,
  .vfx-orbit::after,
  .vfx-orbit span { animation: none !important; }
}

/* Article effect variants: single posts rotate through ten visual modes. */
.article-effect {
  --effect-a: var(--cyan);
  --effect-b: var(--violet);
  --effect-c: var(--blue);
}
.article-effect .hero-inner {
  position: relative;
}
.article-effect-stage {
  position: absolute;
  inset: -34px -6vw auto auto;
  width: min(46vw, 520px);
  aspect-ratio: 1.45;
  pointer-events: none;
  opacity: .72;
  mix-blend-mode: screen;
  filter: saturate(1.16);
}
.article-effect-stage::before,
.article-effect-stage::after,
.article-effect-stage span {
  content: "";
  position: absolute;
  border: 1px solid color-mix(in srgb, var(--effect-a) 34%, transparent);
}
.article-effect-stage::before {
  inset: 18% 8%;
  border-radius: 50%;
  box-shadow: 0 0 60px -22px var(--effect-a), inset 0 0 42px -30px var(--effect-b);
  animation: articleOrbit 14s linear infinite;
}
.article-effect-stage::after {
  inset: 34% 28%;
  border-radius: 999px;
  background: radial-gradient(circle, color-mix(in srgb, var(--effect-a) 34%, transparent), transparent 62%);
  animation: articlePulse 3.8s var(--ease) infinite;
}
.article-effect-stage span:nth-child(1) {
  left: 4%;
  right: 12%;
  top: 20%;
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--effect-a), transparent);
  animation: articleScan 4.8s linear infinite;
}
.article-effect-stage span:nth-child(2) {
  width: 9px;
  height: 9px;
  left: 26%;
  top: 16%;
  border-radius: 50%;
  background: var(--effect-b);
  box-shadow: 0 0 20px var(--effect-b);
}
.article-effect-stage span:nth-child(3) {
  width: 13px;
  height: 13px;
  right: 18%;
  bottom: 20%;
  border-radius: 50%;
  background: var(--effect-a);
  box-shadow: 0 0 24px var(--effect-a);
}
.article-effect-stage span:nth-child(4) {
  inset: 8% 20% 16% 16%;
  border-radius: 20px;
  transform: skewX(-12deg);
  opacity: .32;
}
@keyframes articleOrbit { to { transform: rotate(360deg); } }
@keyframes articlePulse {
  0%, 100% { opacity: .28; transform: scale(.86); }
  50% { opacity: .92; transform: scale(1.08); }
}
@keyframes articleScan {
  0% { transform: translateY(-46px) scaleX(.38); opacity: 0; }
  16%, 72% { opacity: .9; }
  100% { transform: translateY(132px) scaleX(1); opacity: 0; }
}
.article-effect-01 { --effect-a: var(--cyan); --effect-b: var(--blue); --effect-c: var(--violet); }
.article-effect-02 { --effect-a: #6ee79b; --effect-b: var(--cyan); --effect-c: var(--blue); }
.article-effect-03 { --effect-a: #5b8cff; --effect-b: #8be9ff; --effect-c: var(--cyan); }
.article-effect-04 { --effect-a: #ff6a8b; --effect-b: #f2b34a; --effect-c: var(--violet); }
.article-effect-05 { --effect-a: #9a6bff; --effect-b: #4fe3d0; --effect-c: #f4f3ee; }
.article-effect-06 { --effect-a: #f2b34a; --effect-b: #5b8cff; --effect-c: #6ee79b; }
.article-effect-07 { --effect-a: #8be9ff; --effect-b: #9a6bff; --effect-c: #4fe3d0; }
.article-effect-08 { --effect-a: #ffffff; --effect-b: #4fe3d0; --effect-c: #5b8cff; }
.article-effect-09 { --effect-a: #ff8a4f; --effect-b: #f2b34a; --effect-c: #ff6a8b; }
.article-effect-10 { --effect-a: #4fe3d0; --effect-b: #6ee79b; --effect-c: #9a6bff; }
.article-effect-02 .article-effect-stage::before { border-radius: 24% 76% 36% 64%; animation-duration: 18s; }
.article-effect-03 .article-effect-stage span:nth-child(4) { inset: 0 34% 0 34%; border-radius: 0; transform: skewX(0); }
.article-effect-04 .article-effect-stage::before { border-radius: 22px; transform: rotate(18deg); }
.article-effect-05 .article-effect-stage::after { inset: 20% 16%; border-radius: 48% 52% 44% 56%; }
.article-effect-06 .article-effect-stage span:nth-child(1) { height: 2px; animation-duration: 2.8s; }
.article-effect-07 .article-effect-stage::before { inset: 38% 2%; border-radius: 50%; }
.article-effect-08 .article-effect-stage::after { inset: 10% 40%; border-radius: 999px; }
.article-effect-09 .article-effect-stage::before { border-style: dashed; animation-duration: 9s; }
.article-effect-10 .article-effect-stage span:nth-child(4) { border-radius: 50%; animation: articleOrbit 20s linear infinite reverse; }
.article-effect .hero-vfx-panel {
  border-color: color-mix(in srgb, var(--effect-a) 52%, transparent);
  box-shadow: 0 26px 90px -58px color-mix(in srgb, var(--effect-a) 94%, transparent);
}
.article-effect .hero-title::after,
.article-effect .entry-title::after {
  content: "";
  display: block;
  width: min(560px, 100%);
  height: 2px;
  margin-top: 24px;
  background: linear-gradient(90deg, var(--effect-a), var(--effect-b), transparent);
  box-shadow: 0 0 32px color-mix(in srgb, var(--effect-a) 62%, transparent);
  transform-origin: left center;
  animation: signalSweep 4.8s var(--ease) infinite;
}
@media (max-width: 760px) {
  .article-effect-stage {
    inset: 0 0 auto auto;
    width: min(62vw, 280px);
    opacity: .38;
  }
}

/* =========================================================
   Unified Background + Upgraded Particle VFX
   ========================================================= */
.site-main {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(980px 680px at 18% 9%, rgba(79,227,208,.13), transparent 64%),
    radial-gradient(1180px 720px at 87% 11%, rgba(154,107,255,.12), transparent 66%),
    radial-gradient(920px 760px at 72% 82%, rgba(79,227,208,.07), transparent 68%),
    linear-gradient(180deg, rgba(7,7,12,.18), rgba(9,12,20,.40) 44%, rgba(7,7,12,.22));
}
.site-main::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,.030) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px),
    repeating-linear-gradient(0deg, transparent 0 80px, rgba(79,227,208,.025) 81px, transparent 83px);
  background-size: 44px 44px, 44px 44px, 100% 180px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.86), rgba(0,0,0,.95));
}
.site-main::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7,7,12,0) 0%, rgba(7,7,12,.10) 48%, rgba(7,7,12,.03) 100%);
}
.hero {
  border-bottom: 0;
  overflow: visible;
  background: transparent;
}
.hero::before,
.hero::after {
  display: none;
}
.content-band {
  position: relative;
  background: transparent;
  padding-top: 70px;
}
.content-band::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -120px;
  height: 240px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(7,7,12,.10) 50%, transparent);
}
.blog-aura {
  opacity: .95;
  filter: saturate(1.16) contrast(1.08);
}
.post-card {
  backdrop-filter: blur(10px);
}
@media (max-width: 820px) {
  .site-main {
    background:
      radial-gradient(760px 520px at 10% 6%, rgba(79,227,208,.12), transparent 66%),
      radial-gradient(860px 620px at 90% 10%, rgba(154,107,255,.11), transparent 68%),
      linear-gradient(180deg, rgba(7,7,12,.12), rgba(9,12,20,.32) 50%, rgba(7,7,12,.18));
  }
}


/* SEO/LLMO trend tag density */
.hero-meta {
  gap: 8px;
  align-items: center;
}
.pill {
  min-height: 28px;
  padding: 5px 11px;
  font-size: .65rem;
  letter-spacing: .055em;
  background: rgba(7,7,12,.38);
  white-space: nowrap;
}
.pill a {
  color: inherit;
  text-decoration: none;
}
.tag-pill {
  border-color: color-mix(in srgb, var(--green) 42%, transparent);
  color: color-mix(in srgb, var(--paper) 78%, var(--green));
}
.pill:nth-child(3n+1) { border-color: color-mix(in srgb, var(--cyan) 42%, transparent); }
.pill:nth-child(3n+2) { border-color: color-mix(in srgb, var(--violet) 42%, transparent); }
.pill:nth-child(3n) { border-color: color-mix(in srgb, var(--blue) 42%, transparent); }
@media (max-width: 560px) {
  .pill { font-size: .58rem; padding: 4px 9px; }
}

/* Message rail alignment: keep catchphrase on the same right edge as the hero content rail. */
.hero-inner {
  width: 100%;
}
.hero-lede.site-message {
  width: min(100%, 930px);
  max-width: min(100%, 930px);
  word-break: normal;
  overflow-wrap: normal;
}
.site-message span {
  width: min(100%, 930px);
  max-width: min(100%, 930px);
  word-break: normal;
  overflow-wrap: normal;
  line-break: strict;
  text-wrap: pretty;
}
@media (max-width: 700px) {
  .hero-lede.site-message,
  .site-message span {
    width: 100%;
    max-width: 100%;
  }
}