/* panchreston - グローバルスタイル */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --max-width: 1024px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Navbar */
.navbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
}

.navbar-brand a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-menu a {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.nav-menu a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

/* Container */
.container {
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    flex: 1;
}

/* Hero */
.hero {
    text-align: center;
    padding: 3rem 0 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

/* Section cards */
.sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

a.section-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    transition: box-shadow 0.2s, transform 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}

a.section-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
    text-decoration: none;
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.section-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.card-desc {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.card-link {
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

/* Changelog */
.changelog {
    margin-top: 2.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
}

.changelog h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary);
}

.changelog-list {
    list-style: none;
}

.changelog-list li {
    display: flex;
    gap: 0.75rem;
    padding: 0.35rem 0;
    font-size: 0.9rem;
    border-bottom: 1px dotted var(--color-border);
}

.changelog-list li:last-child {
    border-bottom: none;
}

.changelog-list time {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    white-space: nowrap;
    min-width: 5.5rem;
}

.changelog-list span {
    color: var(--color-text);
}

/* LLM Notice */
.llm-notice {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    background: #fefce8;
    border: 1px solid #fde68a;
    border-radius: 8px;
    font-size: 0.85rem;
    color: #92400e;
    line-height: 1.6;
}

/* Global LLM strip (below header, all pages) */
.global-llm-strip-wrap {
    max-width: var(--max-width);
    margin: 0.5rem auto 0;
    padding: 0 1.5rem;
    display: flex;
    justify-content: center;
}

.global-llm-strip {
    margin: 0;
    padding: 0.42rem 0.68rem;
    border-radius: 8px;
    border: 1px solid #dbe3ef;
    background: #ffffff;
    color: #64748b;
    font-size: 0.74rem;
    line-height: 1.4;
    text-align: center;
    max-width: 940px;
}

.global-llm-strip a {
    color: #1d4ed8;
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

/* Responsive */
@media (max-width: 640px) {
    .navbar {
        flex-direction: column;
        gap: 0.5rem;
    }

    .global-llm-strip-wrap {
        padding: 0 0.85rem;
        margin-top: 0.4rem;
    }

    .global-llm-strip {
        font-size: 0.64rem;
        line-height: 1.28;
        padding: 0.36rem 0.56rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }
    .sections {
        grid-template-columns: 1fr;
    }
}

/* Home page */
.home-page {
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.14), transparent 34%),
        radial-gradient(circle at 85% 10%, rgba(15, 23, 42, 0.32), transparent 38%),
        linear-gradient(180deg, #0b1220 0%, #0f172a 100%);
    color: #cbd5e1;
}

.home-page header,
.home-page .navbar {
    background: rgba(8, 16, 31, 0.95);
    border-bottom-color: #223047;
}

.home-page .navbar-brand a {
    color: #f8fafc;
}

.home-page .nav-menu a {
    color: #94a3b8;
}

.home-page .nav-menu a:hover {
    color: #e2e8f0;
}

.home-page .footer,
.home-page footer {
    background: #0a1325;
    border-top: 1px solid #223047;
    color: #94a3b8;
}

.home-shell {
    display: grid;
    gap: 1.1rem;
}

.home-main-panel,
.home-feature-card,
.home-summary-panel {
    background: rgba(14, 24, 41, 0.9);
    border: 1px solid #27364d;
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(2, 8, 23, 0.34), inset 0 1px 0 rgba(148, 163, 184, 0.08);
}

.home-main-panel {
    padding: 1.45rem 1.25rem;
    border-color: #355071;
    background: linear-gradient(180deg, rgba(19, 33, 54, 0.96) 0%, rgba(13, 23, 39, 0.92) 100%);
}

.home-title {
    margin: 0;
    color: #f8fafc;
    font-size: 1.9rem;
    font-weight: 800;
}

.home-subtitle {
    margin: 0.45rem 0 0;
    color: #cbd5e1;
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 78ch;
}

.home-feature-card:hover {
    border-color: #60a5fa;
    transform: translateY(-1px);
    text-decoration: none;
}

.home-warning-box {
    margin-top: 1rem;
    padding: 1.05rem;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(19, 33, 54, 0.95) 0%, rgba(16, 27, 45, 0.95) 100%);
    border: 1px solid #365072;
}

.home-panel-grid-wrap {
    background: rgba(12, 20, 35, 0.86);
    border: 1px solid #324963;
    border-radius: 10px;
    padding: 1.05rem;
    box-shadow: 0 8px 20px rgba(2, 8, 23, 0.28), inset 0 1px 0 rgba(148, 163, 184, 0.07);
}

.home-section-title {
    font-size: 1.02rem;
    font-weight: 700;
    margin: 0 0 0.8rem;
    padding-bottom: 0.45rem;
    border-bottom: 2px solid #2b3a52;
    color: #e2e8f0;
}

.home-warning-title {
    margin: 0;
    color: #e2e8f0;
    font-size: 1.05rem;
}

.home-warning-lead {
    margin: 0.45rem 0 0;
    color: #cbd5e1;
    font-size: 0.9rem;
}

.home-note-grid {
    margin-top: 0.7rem;
    display: grid;
    gap: 0.55rem;
}

.home-note-item {
    margin: 0;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    border: 1px solid #334a68;
    background: rgba(10, 19, 34, 0.82);
    color: #bfdbfe;
    font-size: 0.86rem;
    line-height: 1.6;
}

.home-note-item-strong {
    border-color: #7f1d1d;
    background: rgba(60, 18, 18, 0.7);
    color: #fecaca;
}

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

.home-feature-card {
    padding: 1.1rem;
    color: inherit;
    text-decoration: none;
    transition: transform 0.16s, border-color 0.16s;
    display: grid;
    align-content: start;
    border-color: #334b66;
    background: linear-gradient(180deg, rgba(18, 30, 48, 0.94) 0%, rgba(13, 23, 39, 0.92) 100%);
}

.home-feature-meta {
    margin: 0;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #64748b;
}

.home-feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.34rem;
    color: #7dd3fc;
    font-size: 1.05rem;
    line-height: 1;
}

.home-feature-card h2,
.home-summary-panel h2,
.home-warning-box h2 {
    margin: 0;
    color: #e2e8f0;
}

.home-feature-card h2 {
    font-size: 1.08rem;
    line-height: 1.35;
}

.home-feature-title-line {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    margin-right: 0.2rem;
}

.home-feature-card p,
.home-summary-panel p,
.home-note-item {
    color: #cbd5e1;
}

.home-feature-card p {
    margin: 0.35rem 0 0;
    font-size: 0.9rem;
}

.home-feature-sub {
    color: #94a3b8;
    font-size: 0.84rem;
    font-weight: 600;
}

.home-summary-panel {
    padding: 1.1rem;
    display: grid;
    gap: 0.45rem;
    border-color: #334b66;
    background: linear-gradient(180deg, rgba(16, 29, 47, 0.94) 0%, rgba(12, 22, 37, 0.92) 100%);
}

.home-summary-panel h2 {
    margin-bottom: 0.1rem;
}

.home-summary-panel p {
    margin: 0;
    color: #cbd5e1;
}

@media (max-width: 900px) {
    .home-panel-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .home-main-panel,
    .home-feature-card,
    .home-summary-panel {
        border-radius: 10px;
    }

    .home-main-panel {
        padding: 1rem 0.85rem;
    }

    .home-title {
        font-size: 1.55rem;
    }
}