/* ==========================================================================
   General Media Network ポータルLP
   Vanilla CSS / システムフォント運用（外部フォント読込ゼロでLCP/CLSを最適化）
   ========================================================================== */

:root {
    --color-bg: #f7f8fb;
    --color-surface: #ffffff;
    --color-border: #e3e6ee;
    --color-text: #1c2333;
    --color-text-muted: #5b6479;
    --color-primary: #2952e3;
    --color-primary-dark: #1d3db8;
    --color-primary-soft: #eef1fd;
    --color-accent: #14b8a6;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans JP',
        'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;

    --radius-lg: 20px;
    --radius-md: 14px;
    --shadow-sm: 0 1px 2px rgba(28, 35, 51, 0.06);
    --shadow-md: 0 8px 24px rgba(28, 35, 51, 0.08);
    --container: 1120px;
}

* {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
}

.wrap {
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 20px;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-primary);
    color: #fff;
    padding: 10px 16px;
    border-radius: 0 0 8px 0;
    z-index: 100;
}

.skip-link:focus {
    left: 0;
}

.only-pc {
    display: none;
}

@media (min-width: 720px) {
    .only-pc {
        display: inline;
    }
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: 14px;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-text);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    flex-shrink: 0;
}

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

.brand-text strong {
    font-size: 0.95rem;
    font-weight: 700;
}

.brand-text small {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    letter-spacing: 0.04em;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.site-nav a {
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 999px;
    color: var(--color-text-muted);
    font-weight: 600;
    white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
}

.nav-cta {
    background: var(--color-primary);
    color: #fff !important;
}

.nav-cta:hover,
.nav-cta:focus-visible {
    background: var(--color-primary-dark) !important;
    color: #fff !important;
}

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

.hero {
    padding-block: clamp(48px, 8vw, 96px) clamp(40px, 6vw, 72px);
    background:
        radial-gradient(720px 360px at 85% -10%, rgba(41, 82, 227, 0.10), transparent),
        var(--color-bg);
}

.hero-inner {
    max-width: 760px;
}

.eyebrow {
    display: inline-block;
    margin: 0 0 14px;
    padding: 5px 12px;
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.hero h1 {
    margin: 0 0 20px;
    font-size: clamp(1.6rem, 4.2vw, 2.5rem);
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.hero-lead {
    margin: 0 0 28px;
    color: var(--color-text-muted);
    font-size: 1rem;
    max-width: 620px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 24px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    border: 1px solid transparent;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--color-primary-dark);
}

.btn-ghost {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
}

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

.section {
    padding-block: clamp(48px, 7vw, 80px);
}

.section-alt {
    background: var(--color-surface);
    border-block: 1px solid var(--color-border);
}

.section-title {
    margin: 0 0 10px;
    font-size: clamp(1.3rem, 2.6vw, 1.7rem);
    font-weight: 800;
    letter-spacing: -0.01em;
}

.section-lead {
    margin: 0 0 32px;
    color: var(--color-text-muted);
    max-width: 640px;
}

/* ---------- Media grid ---------- */

.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.media-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.media-card:hover,
.media-card:focus-visible {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.media-tag {
    display: inline-block;
    width: fit-content;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
    font-size: 0.72rem;
    font-weight: 700;
}

.media-card h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 800;
}

.media-card p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.88rem;
    flex-grow: 1;
}

.media-link {
    margin-top: 6px;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--color-primary-dark);
}

.media-card--placeholder {
    border-style: dashed;
    background: var(--color-bg);
    color: var(--color-text-muted);
}

.media-card--placeholder h3 {
    color: var(--color-text-muted);
}

/* ---------- Policy grid ---------- */

.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.policy-card {
    padding: 22px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.policy-card h3 {
    margin: 0 0 10px;
    font-size: 1rem;
    font-weight: 800;
}

.policy-card p {
    margin: 0;
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

/* ---------- Company ---------- */

.company-wrap {
    max-width: 760px;
}

.company-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.company-list {
    margin: 0;
}

.company-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 12px;
    padding: 16px 22px;
    border-bottom: 1px solid var(--color-border);
}

.company-row:last-child {
    border-bottom: none;
}

.company-row dt {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.company-row dd {
    margin: 0;
    font-size: 0.92rem;
}

.company-row dd a {
    color: var(--color-primary-dark);
    font-weight: 600;
    text-decoration: none;
}

.company-row dd a:hover,
.company-row dd a:focus-visible {
    text-decoration: underline;
}

.contact-email {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-weight: 600;
    color: var(--color-text);
}

.contact-note {
    margin: 6px 0 0;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.contact-note code {
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    padding: 1px 4px;
    border-radius: 4px;
    font-size: 0.85em;
}

@media (max-width: 480px) {
    .company-row {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}

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

.site-footer {
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding-block: 28px;
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.footer-brand {
    margin: 0;
    font-weight: 700;
    color: var(--color-text);
}

.footer-nav {
    display: flex;
    gap: 18px;
}

.footer-nav a {
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: 600;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
    color: var(--color-primary-dark);
}

.footer-copy {
    margin: 0;
    width: 100%;
    text-align: center;
    color: var(--color-text-muted);
}

@media (min-width: 720px) {
    .footer-copy {
        width: auto;
        text-align: right;
    }
}

/* ---------- Legal Pages (Privacy & Terms) ---------- */
.legal-wrap {
    padding-block: clamp(32px, 5vw, 64px);
    max-width: 860px;
}

.legal-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 5vw, 48px);
    box-shadow: var(--shadow-sm);
}

.legal-card h1 {
    font-size: clamp(1.4rem, 2.8vw, 1.9rem);
    font-weight: 800;
    margin: 0 0 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.legal-card h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 32px 0 12px;
    color: var(--color-text);
}

.legal-card p,
.legal-card li {
    font-size: 0.92rem;
    line-height: 1.85;
    color: var(--color-text);
}

.legal-card ul {
    margin: 12px 0;
    padding-left: 20px;
}

.legal-card li {
    margin-bottom: 6px;
}

.legal-note-box {
    background: var(--color-surface-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 16px 0;
}

.legal-card .date-meta {
    margin-top: 36px;
    font-size: 0.82rem;
    color: var(--color-text-muted);
    text-align: right;
}

.breadcrumb {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    display: flex;
    gap: 8px;
    align-items: center;
}

.breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--color-primary);
}