/* ============================================================
   THE AI TIMES JAPAN - Main Stylesheet
   ダークテーマ × シアン・ネオン × 金融メディアの編集デザイン
   ============================================================ */

/* ----- Design Tokens ----- */
:root {
    /* Colors - Base */
    --color-bg: #ffffff;
    --color-bg-elevated: #f8f9fa;
    --color-bg-card: #ffffff;
    --color-bg-cream: #f5f1e8;
    --color-bg-dark: #0a0e14;
    --color-bg-dark-elevated: #0f1419;

    /* Colors - Brand */
    --color-cyan: #5eecf2;
    --color-cyan-dim: #4ac4c8;
    --color-cyan-glow: rgba(94, 236, 242, 0.4);
    --color-red: #d63838;
    --color-red-dim: #b82d2d;

    /* Colors - State */
    --color-up: #4ade80;
    --color-down: #f87171;
    --color-neutral: #64748b;

    /* Colors - Text */
    --color-text-primary: #1a1f28;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;
    --color-text-on-cream: #1a1f28;
    --color-text-on-dark: #e8eef5;

    /* Colors - Lines */
    --color-line: rgba(15, 23, 42, 0.08);
    --color-line-strong: rgba(15, 23, 42, 0.15);
    --color-grid: rgba(0, 168, 204, 0.03);

    /* Typography */
    --font-serif: "Cormorant Garamond", "Noto Serif JP", "Hiragino Mincho Pro", "Yu Mincho", serif;
    --font-serif-jp: "Noto Serif JP", "Hiragino Mincho Pro", "Yu Mincho", serif;
    --font-sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
    --font-mono: "JetBrains Mono", "SF Mono", "Menlo", monospace;

    /* Spacing */
    --container-max: 1400px;
    --container-pad: 32px;
    --section-gap: 80px;

    /* Misc */
    --radius-sm: 2px;
    --radius-md: 4px;
    --transition: 0.2s ease;
}

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

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

body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { background: none; border: none; cursor: pointer; color: inherit; font: inherit; }
ul { list-style: none; padding: 0; margin: 0; }

/* ----- Grid Background ----- */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--color-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.3;
}

.site-main, .site-header, .site-footer, .ticker-bar {
    position: relative;
    z-index: 1;
}

/* ----- Container ----- */
.container,
.site-header__container,
.site-footer__container,
.hero-section__container,
.post-page__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--container-pad);
    padding-right: var(--container-pad);
}

.post-page__container { max-width: 920px; }

/* ============================================================
   Ticker Bar
   ============================================================ */
.ticker-bar {
    background: #000;
    border-bottom: 1px solid var(--color-line-strong);
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 13px;
}

.ticker-bar__inner {
    display: flex;
    gap: 48px;
    padding: 10px var(--container-pad);
    white-space: nowrap;
    animation: ticker-scroll 60s linear infinite;
    width: max-content;
}

@keyframes ticker-scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.ticker-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.ticker-item__label {
    color: var(--color-cyan);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.ticker-item__value {
    color: var(--color-text-primary);
    font-weight: 500;
}

.ticker-item__value--placeholder {
    color: var(--color-text-muted);
    font-size: 11px;
    font-style: italic;
}

.ticker-item__change--up { color: var(--color-up); }
.ticker-item__change--down { color: var(--color-down); }

/* ============================================================
   Site Header
   ============================================================ */
.site-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    padding: 32px 0 0;
}

.site-header__top {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    min-height: 80px;
}

/* navigation_layout: Logo on the left */
.site-header--left .site-header__top {
    justify-content: flex-start;
}

.site-header--left .site-header__logo {
    text-align: left;
}

.site-header__logo {
    text-align: center;
}

.site-title {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 42px;
    font-weight: 900;
    letter-spacing: 0.02em;
    color: var(--color-text-primary);
    line-height: 1;
}

.site-header__auth-left { justify-self: start; }
.site-header__auth-right { justify-self: end; }

.auth-link {
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

.auth-link:hover { color: var(--color-cyan); }

.btn-subscribe {
    display: inline-block;
    padding: 12px 28px;
    background: var(--color-text-primary);
    color: var(--color-bg);
    font-size: 14px;
    font-weight: 700;
    transition: all var(--transition);
    border: 1px solid var(--color-text-primary);
}

.btn-subscribe:hover {
    background: var(--color-cyan);
    border-color: var(--color-cyan);
    box-shadow: 0 0 24px var(--color-cyan-glow);
}

/* Site Navigation */
.site-nav {
    margin-top: 32px;
    border-bottom: 1px solid var(--color-line);
}

.site-nav__list {
    display: flex;
    gap: 36px;
}

.site-nav__item {
    position: relative;
}

.site-nav__link {
    display: block;
    padding: 12px 0;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition);
    position: relative;
}

.site-nav__link:hover { color: var(--color-text-primary); }

.site-nav__link.is-active {
    color: var(--color-cyan);
}

.site-nav__link.is-active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: var(--color-cyan);
    box-shadow: 0 0 8px var(--color-cyan-glow);
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero-section {
    padding: 48px 0 80px;
}

.hero-section__grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 48px;
}

/* Hero Article */
.hero-article__media {
    display: block;
    margin-bottom: 32px;
}

.hero-article__frame {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: linear-gradient(135deg, #0d1420 0%, #1a2942 100%);
}

.hero-article__frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-article__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(135deg, #0d1420 0%, #1a2942 100%),
        repeating-linear-gradient(0deg, transparent, transparent 24px, rgba(94, 236, 242, 0.04) 24px, rgba(94, 236, 242, 0.04) 25px);
    background-blend-mode: normal;
    position: relative;
}

.hero-article__placeholder::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(94, 236, 242, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94, 236, 242, 0.08) 1px, transparent 1px);
    background-size: 40px 40px;
}

.hero-article__watermark {
    font-family: var(--font-serif);
    font-size: 64px;
    letter-spacing: 0.4em;
    color: rgba(94, 236, 242, 0.15);
    font-weight: 400;
    position: relative;
    z-index: 1;
}

/* Frame corners */
.frame-corner {
    position: absolute;
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-cyan);
    z-index: 2;
    pointer-events: none;
}

.frame-corner--tl { top: 16px; left: 16px; border-right: none; border-bottom: none; }
.frame-corner--tr { top: 16px; right: 16px; border-left: none; border-bottom: none; }
.frame-corner--bl { bottom: 16px; left: 16px; border-right: none; border-top: none; }
.frame-corner--br { bottom: 16px; right: 16px; border-left: none; border-top: none; }

/* Badge */
.badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    padding: 4px 0;
    margin-bottom: 16px;
}

.badge--featured { color: var(--color-red); }
.badge--insight { color: var(--color-red); }

.hero-article__title {
    font-family: var(--font-serif-jp);
    font-size: 42px;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: 0.01em;
    margin: 0 0 24px;
    color: var(--color-text-primary);
}

.hero-article__title a:hover { color: var(--color-cyan); }

.hero-article__excerpt {
    font-size: 16px;
    line-height: 1.85;
    color: var(--color-text-secondary);
    margin: 0 0 24px;
}

.hero-article__meta,
.post-page__meta {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 13px;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.meta-author { color: var(--color-text-secondary); }
.meta-sep { margin: 0 8px; opacity: 0.4; }

/* ============================================================
   AITX30 Widget (Sidebar)
   ============================================================ */
.aitx30-widget {
    background: linear-gradient(135deg, #0a1428 0%, #0d1a2e 100%);
    border: 1px solid var(--color-cyan-dim);
    padding: 24px;
    position: relative;
    margin-bottom: 24px;
}

.aitx30-widget::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(94, 236, 242, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94, 236, 242, 0.06) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

.aitx30-widget > * { position: relative; z-index: 1; }

.aitx30-widget__category {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-red);
    letter-spacing: 0.05em;
}

.aitx30-widget__live {
    color: var(--color-cyan);
    margin-left: 8px;
}

.aitx30-widget__name {
    margin: 12px 0 16px;
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: 0.04em;
}

.aitx30-widget__value-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}

.aitx30-widget__value {
    font-family: var(--font-mono);
    font-size: 40px;
    font-weight: 700;
    color: var(--color-cyan);
    letter-spacing: 0.02em;
    text-shadow: 0 0 16px var(--color-cyan-glow);
    line-height: 1;
}

.aitx30-widget__value--placeholder {
    font-size: 24px;
    color: var(--color-text-muted);
    text-shadow: none;
    font-weight: 500;
}

.aitx30-widget__chart--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(94, 236, 242, 0.03);
    border: 1px dashed rgba(94, 236, 242, 0.2);
}

.aitx30-widget__placeholder-text {
    font-size: 13px;
    color: var(--color-text-muted);
    text-align: center;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

.aitx30-widget__change {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
}

.aitx30-widget__change--up { color: var(--color-up); }
.aitx30-widget__change--down { color: var(--color-down); }

.aitx30-widget__pct { opacity: 0.8; }

.aitx30-widget__chart {
    margin: 20px 0;
    height: 120px;
    position: relative;
}

.aitx30-widget__chart canvas {
    width: 100% !important;
    height: 100% !important;
}

.aitx30-widget__footer {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-muted);
    padding-top: 12px;
    border-top: 1px solid rgba(94, 236, 242, 0.15);
}

.aitx30-widget__cta {
    display: block;
    text-align: center;
    margin-top: 16px;
    padding: 10px;
    color: var(--color-red);
    font-family: var(--font-mono);
    font-size: 13px;
    border: 1px solid var(--color-red);
    transition: all var(--transition);
}

.aitx30-widget__cta:hover {
    background: var(--color-red);
    color: var(--color-bg);
}

/* ============================================================
   Briefing Widget
   ============================================================ */
.briefing-widget {
    background: var(--color-bg-cream);
    color: var(--color-text-on-cream);
    padding: 24px;
}

.briefing-widget__category {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-red);
}

.briefing-widget__title {
    margin: 8px 0 20px;
    font-family: var(--font-serif-jp);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-on-cream);
}

.briefing-widget__list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.briefing-widget__item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px;
    background: rgba(10, 14, 20, 0.92);
    color: var(--color-text-primary);
    transition: transform var(--transition);
}

.briefing-widget__item:hover { transform: translateX(4px); }

.briefing-widget__play {
    color: var(--color-cyan);
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.briefing-widget__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;
    gap: 12px;
}

.briefing-widget__label {
    font-size: 14px;
    font-weight: 500;
}

.briefing-widget__time {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ============================================================
   Section Heading
   ============================================================ */
.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-line);
    position: relative;
}

.section-heading::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 120px;
    height: 2px;
    background: var(--color-cyan);
    box-shadow: 0 0 8px var(--color-cyan-glow);
}

.section-heading__title {
    margin: 0;
    font-family: var(--font-serif-jp);
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-heading__bar {
    display: inline-block;
    width: 4px;
    height: 24px;
    background: var(--color-cyan);
    box-shadow: 0 0 12px var(--color-cyan-glow);
}

.section-heading__more {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-red);
    transition: opacity var(--transition);
}

.section-heading__more:hover { opacity: 0.7; }

/* ============================================================
   Card Grid + Post Card
   ============================================================ */
.latest-section,
.more-section,
.archive-section,
.related-section {
    padding: 60px 0;
}

.card-grid {
    display: grid;
    gap: 32px;
}

.card-grid--3col {
    grid-template-columns: repeat(3, 1fr);
}

.post-card__media {
    display: block;
    margin-bottom: 16px;
}

.post-card__frame {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.post-card__frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.post-card__media:hover img { transform: scale(1.05); }

.post-card__placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a2942 0%, #0d1420 100%);
}

/* Category-specific placeholder colors */
.post-card__placeholder[data-category="market"],
.post-card__frame--market .post-card__placeholder {
    background: linear-gradient(135deg, #1e3a52 0%, #0d1420 100%);
}

.post-card__placeholder[data-category="technology"],
.post-card__frame--technology .post-card__placeholder {
    background: linear-gradient(135deg, #4a2c6b 0%, #2a1a3e 100%);
}

.post-card__placeholder[data-category="companies"],
.post-card__frame--companies .post-card__placeholder {
    background: linear-gradient(135deg, #6b2a2a 0%, #3e1a1a 100%);
}

.post-card__category {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-red);
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.post-card__title {
    margin: 0 0 12px;
    font-family: var(--font-serif-jp);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.45;
    color: var(--color-text-primary);
}

.post-card__title a:hover { color: var(--color-cyan); }

.post-card__excerpt {
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-text-secondary);
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-muted);
}

.post-card__audio { color: var(--color-cyan); }

/* ============================================================
   AITX30 Big Section
   ============================================================ */
.aitx30-section {
    padding: 60px 0;
}

.aitx30-section__inner {
    background: linear-gradient(135deg, #050810 0%, #0a1428 100%);
    padding: 48px;
    position: relative;
    overflow: hidden;
}

.aitx30-section__inner::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(94, 236, 242, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94, 236, 242, 0.04) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
}

.aitx30-section__inner > * { position: relative; z-index: 1; }

.aitx30-section__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.aitx30-section__title {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 48px;
    font-weight: 600;
    color: var(--color-cyan);
    letter-spacing: 0.06em;
    text-shadow: 0 0 24px var(--color-cyan-glow);
    display: flex;
    align-items: center;
    gap: 16px;
}

.aitx30-bracket {
    color: var(--color-cyan);
    font-weight: 400;
}

.aitx30-section__more {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-cyan);
}

.aitx30-section__sub {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-cyan-dim);
    margin: 0 0 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(94, 236, 242, 0.2);
}

.aitx30-section__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.stat-card {
    border: 1px solid rgba(94, 236, 242, 0.25);
    padding: 20px;
    position: relative;
}

.stat-card::before, .stat-card::after {
    content: "";
    position: absolute;
    width: 12px;
    height: 12px;
    border: 2px solid var(--color-cyan);
}

.stat-card::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.stat-card::after { top: -1px; right: -1px; border-left: none; border-bottom: none; }

.stat-card__label {
    display: block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-cyan-dim);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.stat-card__value {
    display: block;
    font-family: var(--font-mono);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: 0.02em;
    line-height: 1.1;
}

.stat-card__value--up {
    color: var(--color-up);
    text-shadow: 0 0 16px rgba(74, 222, 128, 0.4);
}

.stat-card__change {
    display: block;
    font-family: var(--font-mono);
    font-size: 13px;
    margin-top: 8px;
}

.stat-card__change--up { color: var(--color-up); }
.stat-card__change--down { color: var(--color-down); }

.stat-card__sub {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-muted);
    margin-top: 8px;
}

/* AITX30 Table */
.aitx30-table {
    border-top: 1px solid rgba(94, 236, 242, 0.2);
    padding-top: 24px;
}

.aitx30-table__header {
    display: grid;
    grid-template-columns: 80px 100px 1fr 120px 120px 120px 120px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(94, 236, 242, 0.3);
}

.aitx30-table__th {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-cyan-dim);
    letter-spacing: 0.05em;
}

.aitx30-table__th--num,
.aitx30-table__td--num {
    text-align: right;
}

.aitx30-table__row {
    display: grid;
    grid-template-columns: 80px 100px 1fr 120px 120px 120px 120px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(94, 236, 242, 0.08);
    transition: background var(--transition);
}

.aitx30-table__row:hover {
    background: rgba(94, 236, 242, 0.03);
}

.aitx30-table__td {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--color-text-primary);
}

.aitx30-table__td--rank {
    color: var(--color-cyan-dim);
}

.aitx30-table__td--code {
    color: #f59e0b;
}

.aitx30-table__td--name {
    font-family: var(--font-sans);
    font-weight: 500;
}

.aitx30-table__td--up { color: var(--color-up); }
.aitx30-table__td--down { color: var(--color-down); }

/* AITX30 Coming Soon */
.aitx30-section__coming-soon {
    padding: 120px 40px;
    text-align: center;
}

.coming-soon-message {
    max-width: 720px;
    margin: 0 auto;
}

.coming-soon-message__title {
    font-family: var(--font-serif);
    font-size: 48px;
    color: var(--color-cyan);
    margin: 0;
    text-shadow: 0 0 24px var(--color-cyan-glow);
    letter-spacing: 0.08em;
}

.coming-soon-message__text {
    font-size: 15px;
    line-height: 1.9;
    color: var(--color-text-secondary);
    margin: 0 0 24px;
}

.coming-soon-message__text:last-child {
    margin-bottom: 0;
}

/* Coming Soon Only Widgets */
.aitx30-widget__coming-soon-only,
.briefing-widget__coming-soon-only {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    padding: 60px 20px;
}

.aitx30-widget__coming-soon-title,
.briefing-widget__coming-soon-title {
    font-family: var(--font-serif);
    font-size: 32px;
    color: var(--color-cyan);
    margin: 0;
    text-shadow: 0 0 16px var(--color-cyan-glow);
    letter-spacing: 0.08em;
}

/* ============================================================
   Insight Section
   ============================================================ */
.insight-section {
    padding: 60px 0;
}

.insight-card {
    background: var(--color-bg-cream);
    color: var(--color-text-on-cream);
    padding: 48px;
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 48px;
    align-items: center;
    border: 1px solid var(--color-cyan);
    position: relative;
}

.insight-card::before, .insight-card::after,
.insight-card .insight-card__body::before, .insight-card .insight-card__body::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-cyan);
}

.insight-card::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.insight-card::after { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.insight-card .insight-card__body::before { bottom: 47px; left: 47px; border-right: none; border-top: none; pointer-events: none; }
.insight-card .insight-card__body::after { bottom: 47px; right: 47px; border-left: none; border-top: none; pointer-events: none; }

.insight-card__title {
    font-family: var(--font-serif-jp);
    font-size: 30px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text-on-cream);
    margin: 0 0 20px;
}

.insight-card__excerpt {
    font-size: 15px;
    line-height: 1.85;
    color: #3a4250;
    margin: 0 0 20px;
}

.insight-card__finding {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-on-cream);
    margin: 0 0 24px;
}

.insight-card__cta {
    display: inline-block;
    color: var(--color-red);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    transition: opacity var(--transition);
}

.insight-card__cta:hover { opacity: 0.7; }

.insight-card__chart {
    background: var(--color-bg);
    padding: 24px;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.insight-card__chart canvas {
    max-width: 100% !important;
    max-height: 100% !important;
}

/* ============================================================
   Post Page
   ============================================================ */
.post-page {
    padding: 60px 0 80px;
}

.post-page__header {
    margin-bottom: 48px;
}

.post-page__category {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-red);
    margin-bottom: 16px;
}

.post-page__title {
    font-family: var(--font-serif-jp);
    font-size: 44px;
    font-weight: 700;
    line-height: 1.35;
    color: var(--color-text-primary);
    margin: 0 0 24px;
}

.post-page__excerpt {
    font-size: 18px;
    line-height: 1.85;
    color: var(--color-text-secondary);
    margin: 0 0 24px;
    border-left: 3px solid var(--color-cyan);
    padding-left: 20px;
}

.audio-player-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
    padding: 12px 20px;
    border: 1px solid var(--color-cyan);
    background: rgba(94, 236, 242, 0.05);
    color: var(--color-text-primary);
    transition: all var(--transition);
}

.audio-player-cta:hover {
    background: rgba(94, 236, 242, 0.1);
    box-shadow: 0 0 16px var(--color-cyan-glow);
}

.audio-player-cta svg { color: var(--color-cyan); }

.audio-player-cta__label { font-size: 14px; font-weight: 500; }
.audio-player-cta__time { font-family: var(--font-mono); font-size: 12px; color: var(--color-cyan); }

.post-page__feature {
    margin: 0 0 48px;
}

.post-page__caption {
    margin-top: 12px;
    font-size: 13px;
    color: var(--color-text-muted);
    text-align: center;
}

.post-page__content {
    font-size: 16px;
    line-height: 1.9;
    color: var(--color-text-primary);
}

.post-page__content p { margin: 0 0 24px; }

.post-page__content h2 {
    font-family: var(--font-serif-jp);
    font-size: 28px;
    margin: 56px 0 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-line);
    position: relative;
}

.post-page__content h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 60px;
    height: 2px;
    background: var(--color-cyan);
}

.post-page__content h3 {
    font-family: var(--font-serif-jp);
    font-size: 22px;
    margin: 40px 0 16px;
    color: var(--color-cyan);
}

.post-page__content a {
    color: var(--color-cyan);
    border-bottom: 1px solid currentColor;
}

.post-page__content blockquote {
    margin: 32px 0;
    padding: 20px 24px;
    border-left: 3px solid var(--color-red);
    background: rgba(214, 56, 56, 0.05);
    font-style: italic;
    color: var(--color-text-secondary);
}

.post-page__content code {
    background: var(--color-bg-card);
    color: var(--color-cyan);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

.post-page__content pre {
    background: var(--color-bg-card);
    border-left: 3px solid var(--color-cyan);
    padding: 20px;
    overflow-x: auto;
    margin: 32px 0;
}

.post-page__content img {
    margin: 32px 0;
    border: 1px solid var(--color-line);
}

/* ----- Koenig Editor: 画像・埋め込みの幅指定クラス（Ghost必須） ----- */
.kg-width-wide {
    position: relative;
    width: 85vw;
    max-width: 1240px;
    min-width: 100%;
    margin-left: 50%;
    transform: translateX(-50%);
}

.kg-width-full {
    position: relative;
    width: 100vw;
    margin-left: 50%;
    transform: translateX(-50%);
}

.kg-width-full img {
    width: 100%;
}

/* Koenig コンテンツカード */
.kg-card {
    margin: 32px 0;
}

.kg-image-card .kg-card-caption,
.kg-embed-card .kg-card-caption {
    text-align: center;
    font-size: 13px;
    color: var(--color-text-muted);
    margin-top: 12px;
}

.kg-bookmark-card {
    width: 100%;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-line);
}

.kg-bookmark-container {
    display: flex;
    color: var(--color-text-primary);
    text-decoration: none;
    min-height: 148px;
}

.kg-bookmark-content {
    flex: 0 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 20px;
}

.kg-bookmark-title {
    font-weight: 700;
    color: var(--color-text-primary);
}

.kg-bookmark-description {
    overflow-y: hidden;
    max-height: 48px;
    margin-top: 8px;
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.5;
}

.kg-bookmark-metadata {
    display: flex;
    align-items: center;
    margin-top: 14px;
    color: var(--color-text-muted);
    font-size: 12px;
    gap: 8px;
}

.kg-bookmark-icon {
    width: 18px;
    height: 18px;
}

.kg-bookmark-thumbnail {
    position: relative;
    flex: 1 1 180px;
    min-height: 148px;
}

.kg-bookmark-thumbnail img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.kg-gallery-container {
    display: flex;
    flex-direction: column;
    margin: 32px 0;
}

.kg-gallery-row {
    display: flex;
    flex-direction: row;
    justify-content: center;
}

.kg-gallery-image img {
    display: block;
    margin: 0;
    width: 100%;
    height: 100%;
}

.kg-gallery-row:not(:first-of-type) { margin-top: 4px; }
.kg-gallery-image:not(:first-of-type) { margin-left: 4px; }

.kg-callout-card {
    display: flex;
    padding: 20px;
    border-radius: 4px;
    margin: 32px 0;
    background: rgba(94, 236, 242, 0.08);
    border-left: 3px solid var(--color-cyan);
}

.kg-callout-emoji {
    font-size: 24px;
    margin-right: 12px;
}

.kg-callout-text {
    flex: 1;
}

.kg-toggle-card {
    margin: 32px 0;
    padding: 20px;
    border: 1px solid var(--color-line);
    border-radius: 4px;
}

.kg-toggle-heading {
    font-family: var(--font-serif-jp);
    font-size: 18px;
    margin: 0;
}

.kg-button-card {
    display: flex;
    margin: 32px 0;
}

.kg-align-center { justify-content: center; }
.kg-align-left { justify-content: flex-start; }

.kg-btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--color-cyan);
    color: var(--color-bg);
    font-weight: 700;
    text-decoration: none;
    transition: opacity var(--transition);
}

.kg-btn:hover { opacity: 0.85; }

.kg-product-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-line);
    padding: 24px;
    margin: 32px 0;
}

.kg-audio-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-cyan);
    padding: 16px;
    margin: 32px 0;
    border-radius: 4px;
}

.kg-video-card {
    margin: 32px 0;
}

.kg-file-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-line);
    padding: 20px;
    margin: 32px 0;
}

.post-page__tags {
    margin: 48px 0;
    padding: 24px 0;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.post-page__tags-label {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-cyan);
    margin-right: 8px;
}

.post-page__tag {
    padding: 6px 14px;
    border: 1px solid var(--color-line-strong);
    font-size: 13px;
    color: var(--color-text-secondary);
    transition: all var(--transition);
}

.post-page__tag:hover {
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

.post-page__author {
    margin-top: 48px;
    padding: 32px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-line);
}

.post-page__author-inner {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.post-page__author-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid var(--color-cyan);
}

.post-page__author-label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-cyan);
}

.post-page__author-name {
    margin: 4px 0 8px;
    font-family: var(--font-serif-jp);
    font-size: 22px;
}

.post-page__author-bio {
    margin: 0;
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* Paywall */
.paywall {
    margin-top: 48px;
    padding: 48px 32px;
    text-align: center;
    border: 1px dashed var(--color-cyan);
    background: rgba(94, 236, 242, 0.04);
}

.paywall--paid {
    border-color: var(--color-red);
    background: rgba(214, 56, 56, 0.04);
}

.paywall__title {
    font-family: var(--font-serif-jp);
    font-size: 26px;
    margin: 0 0 12px;
}

.paywall__text {
    color: var(--color-text-secondary);
    margin: 0 0 24px;
}

/* Post navigation (前後の記事) */
.post-nav {
    padding: 40px 0;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    margin-top: 60px;
}

.post-nav__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.post-nav__item {
    display: block;
    padding: 24px;
    border: 1px solid var(--color-line);
    transition: all var(--transition);
}

.post-nav__item:hover {
    border-color: var(--color-cyan);
    background: rgba(94, 236, 242, 0.03);
}

.post-nav__item--next { text-align: right; }

.post-nav__label {
    display: block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-cyan);
    margin-bottom: 8px;
}

.post-nav__title {
    display: block;
    font-family: var(--font-serif-jp);
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text-primary);
    line-height: 1.5;
}

/* Comments */
.comments-section {
    padding: 60px 0;
}

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

/* ============================================================
   Articles Archive Page
   ============================================================ */
.articles-archive {
    padding: 60px 0;
}

.archive-section-group {
    margin-bottom: 80px;
}

.archive-section-group:last-child {
    margin-bottom: 0;
}

.empty-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-muted);
    font-size: 15px;
}

.view-all-posts__note {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 14px;
    margin: 0;
}

/* ============================================================
   Archive Page
   ============================================================ */
.archive-header {
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--color-line);
}

.archive-header__category {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-cyan);
}

.archive-header__title {
    margin: 12px 0 16px;
    font-family: var(--font-serif-jp);
    font-size: 42px;
    font-weight: 700;
}

.archive-header__description {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin: 0;
    max-width: 720px;
}

.archive-header__image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 24px;
    border: 2px solid var(--color-cyan);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 60px;
    font-family: var(--font-mono);
    font-size: 14px;
}

.pagination a, .pagination .page {
    padding: 10px 20px;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-line-strong);
    transition: all var(--transition);
}

.pagination a:hover {
    color: var(--color-cyan);
    border-color: var(--color-cyan);
}

/* ============================================================
   Error Page
   ============================================================ */
.error-section {
    padding: 120px 0;
}

.error-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.error-code {
    font-family: var(--font-mono);
    font-size: 16px;
    color: var(--color-cyan);
    margin-bottom: 24px;
}

.error-title {
    font-family: var(--font-serif-jp);
    font-size: 48px;
    margin: 0 0 16px;
}

.error-text {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

/* ============================================================
   Site Footer
   ============================================================ */
.site-footer {
    background: #050810;
    border-top: 1px solid var(--color-line);
    padding: 80px 0 40px;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(94, 236, 242, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94, 236, 242, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.site-footer__container { position: relative; z-index: 1; }

.site-footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.site-footer__logo {
    margin: 0 0 16px;
    font-size: 24px;
    font-weight: 900;
    color: var(--color-text-primary);
    letter-spacing: 0.02em;
}

.site-footer__tagline {
    font-size: 13px;
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.7;
}

.site-footer__heading {
    margin: 0 0 20px;
    font-size: 13px;
    color: var(--color-cyan);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.site-footer__list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.site-footer__list a {
    font-size: 14px;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

.site-footer__list a:hover {
    color: var(--color-cyan);
}

.site-footer__bottom {
    padding-top: 32px;
    border-top: 1px solid var(--color-line);
    text-align: center;
}

.site-footer__copyright {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
    margin: 0;
}

/* Pagination */
.pagination-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    margin-top: 60px;
    font-family: var(--font-mono);
    font-size: 14px;
}

.pagination-nav__link {
    padding: 12px 24px;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-line-strong);
    transition: all var(--transition);
}

.pagination-nav__link:hover {
    color: var(--color-cyan);
    border-color: var(--color-cyan);
    background: rgba(0, 168, 204, 0.03);
}

.pagination-nav__info {
    color: var(--color-text-muted);
    font-size: 13px;
}

.view-all-posts {
    text-align: center;
    margin-top: 60px;
    padding: 40px 0;
    border-top: 1px solid var(--color-line);
}

.view-all-posts__link {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-cyan);
    border: 1px solid var(--color-cyan);
    transition: all var(--transition);
}

.view-all-posts__link:hover {
    background: var(--color-cyan);
    color: var(--color-bg);
    box-shadow: 0 2px 8px rgba(0, 168, 204, 0.2);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
    .hero-section__grid {
        grid-template-columns: 1fr;
    }

    .aitx30-section__stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .aitx30-table__header,
    .aitx30-table__row {
        grid-template-columns: 50px 80px 1fr 100px 100px;
    }

    .aitx30-table__th:nth-child(6),
    .aitx30-table__th:nth-child(7),
    .aitx30-table__td:nth-child(6),
    .aitx30-table__td:nth-child(7) {
        display: none;
    }

    .insight-card {
        grid-template-columns: 1fr;
        padding: 32px;
    }

    .insight-card .insight-card__body::before,
    .insight-card .insight-card__body::after {
        bottom: 31px;
        left: 31px;
    }
    .insight-card .insight-card__body::after { left: auto; right: 31px; }

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

@media (max-width: 768px) {
    :root {
        --container-pad: 20px;
    }

    .site-title { font-size: 28px; }
    .site-header__top { grid-template-columns: 1fr; gap: 16px; }
    .site-header__auth-left, .site-header__auth-right { justify-self: center; }

    .site-nav__list {
        overflow-x: auto;
        gap: 20px;
        -webkit-overflow-scrolling: touch;
    }
    .site-nav__link { white-space: nowrap; font-size: 14px; }

    .hero-article__title { font-size: 28px; }
    .post-page__title { font-size: 30px; }
    .section-heading__title { font-size: 22px; }

    .card-grid--3col { grid-template-columns: 1fr; }

    .aitx30-section__inner { padding: 24px; }
    .aitx30-section__title { font-size: 32px; }
    .aitx30-section__stats { grid-template-columns: 1fr; }
    .aitx30-section__header { flex-direction: column; align-items: flex-start; gap: 16px; }

    .stat-card__value { font-size: 24px; }

    .aitx30-table__header,
    .aitx30-table__row {
        grid-template-columns: 36px 60px 1fr 80px;
        font-size: 12px;
    }
    .aitx30-table__th:nth-child(5),
    .aitx30-table__td:nth-child(5) { display: none; }

    .insight-card__title { font-size: 22px; }

    .site-footer__grid { grid-template-columns: 1fr; gap: 32px; }

    .ticker-bar__inner { gap: 32px; }
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes fade-in {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-article,
.post-card,
.aitx30-section__inner,
.insight-card {
    animation: fade-in 0.6s ease-out both;
}

.post-card:nth-child(2) { animation-delay: 0.1s; }
.post-card:nth-child(3) { animation-delay: 0.2s; }
.post-card:nth-child(4) { animation-delay: 0.3s; }

/* Pulse animation for live indicator */
@keyframes pulse-cyan {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.aitx30-widget__live::before {
    content: "● ";
    color: var(--color-up);
    animation: pulse-cyan 2s infinite;
}