/* MeON support site — bilingual + mobile-first redesign
   Layout: clean cards (Pulse-inspired) with MeON's lavender/pink brand gradient hero. */

:root {
    --bg: #f5f5f7;
    --surface: #ffffff;
    --text: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #86868b;
    --border: #e5e5ea;
    --link: #6b5cf5;
    --brand-indigo: #6b5cf5;
    --brand-violet: #c75de0;
    --brand-pink: #f5669e;
    --brand-grad: linear-gradient(135deg, #b8a8ff 0%, #e4b8f0 50%, #ffd1de 100%);
    --brand-grad-strong: linear-gradient(135deg, #6b5cf5 0%, #c75de0 50%, #f5669e 100%);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(107,92,245,0.18);
    --radius-card: 16px;
}

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

html, body { overflow-x: hidden; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans',
                 'Hiragino Kaku Gothic ProN', 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
}

/* ===== Top navigation bar (sticky) ===== */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--border);
}
.topbar__inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.topbar__brand {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.2px;
    color: var(--text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.topbar__brand .dot {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: var(--brand-grad-strong);
    box-shadow: 0 2px 6px rgba(107,92,245,0.35);
}
.topbar__back {
    font-size: 14px;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.15s;
}
.topbar__back:hover { color: var(--text); }
.lang-switch {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 12px 6px 10px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--text);
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s, transform 0.15s, border-color 0.15s;
    white-space: nowrap;
    min-height: 34px;
}
.lang-switch:hover {
    background: var(--bg);
    border-color: #d0d0d6;
    transform: translateY(-1px);
}
.lang-switch:active { transform: translateY(0); }
.lang-switch__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--brand-indigo);
}
.lang-switch__label { font-size: 12px; }
@media (max-width: 480px) {
    .lang-switch { padding: 5px 10px 5px 8px; min-height: 32px; }
    .lang-switch__icon { width: 16px; height: 16px; }
    .lang-switch__label { font-size: 11px; }
}

/* Hide non-active language content */
body[data-lang="ja"] [data-lang-block="en"] { display: none !important; }
body[data-lang="en"] [data-lang-block="ja"] { display: none !important; }

/* ===== Hero (home page) — gradient background ===== */
.hero {
    position: relative;
    text-align: center;
    padding: 56px 20px 48px;
    background: var(--brand-grad);
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 0%, rgba(255,255,255,0.55) 0%, transparent 55%);
    pointer-events: none;
}
.hero__icon {
    position: relative;
    width: 92px;
    height: 92px;
    border-radius: 22px;
    margin: 0 auto 18px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}
.hero__icon img {
    width: 100%;
    height: 100%;
    display: block;
}
.hero h1 {
    position: relative;
    font-size: 30px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #2a1a4a;
}
.hero__tagline {
    position: relative;
    font-size: 15px;
    color: rgba(42, 26, 74, 0.78);
    margin-top: 8px;
    padding: 0 12px;
}
.hero__cta {
    position: relative;
    display: inline-block;
    margin-top: 22px;
    padding: 12px 22px;
    border-radius: 999px;
    background: #1d1d1f;
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: opacity 0.2s, transform 0.2s;
}
.hero__cta:hover { opacity: 0.88; transform: translateY(-1px); }

/* ===== Page header (sub pages) ===== */
.page-header {
    text-align: center;
    padding: 40px 20px 8px;
}
.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    margin-top: 4px;
    letter-spacing: -0.3px;
}
.page-header .date {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 6px;
}

/* ===== Section title ===== */
.section-title {
    max-width: 600px;
    margin: 32px auto 12px;
    padding: 0 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-tertiary);
}

/* ===== Card list (home navigation) ===== */
.cards {
    max-width: 600px;
    margin: 0 auto;
    padding: 12px 16px 48px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.card {
    background: var(--surface);
    border-radius: var(--radius-card);
    padding: 18px 18px;
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.card__icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}
.card__icon.blue   { background: #e8f0fe; }
.card__icon.green  { background: #e6f4ea; }
.card__icon.purple { background: #f3e8fd; }
.card__icon.pink   { background: #ffe8ef; }
.card__icon.amber  { background: #fff3d6; }
.card__body { flex: 1; min-width: 0; }
.card__body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}
.card__body p {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 2px;
}
.card__arrow {
    color: #c7c7cc;
    font-size: 20px;
    line-height: 1;
    flex-shrink: 0;
}

/* ===== Document content card (sub pages) ===== */
.content {
    max-width: 680px;
    margin: 16px auto 48px;
    padding: 28px 28px;
    background: var(--surface);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-sm);
    line-height: 1.8;
}
.content h2 {
    font-size: 17px;
    font-weight: 600;
    margin: 24px 0 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}
.content h2:first-child { margin-top: 0; }
.content h3 {
    font-size: 15px;
    font-weight: 600;
    margin: 18px 0 6px;
}
.content p { margin: 8px 0; font-size: 15px; color: #333; }
.content ol,
.content ul {
    margin: 8px 0 8px 22px;
    font-size: 15px;
    color: #333;
}
.content li { margin: 4px 0; }
.content li ul, .content li ol { margin-top: 4px; }
.content a { color: var(--link); text-decoration: none; }
.content a:hover { text-decoration: underline; }
.content strong { color: var(--text); }

/* Privacy summary highlight */
.callout {
    background: #f3eeff;
    border-left: 3px solid var(--brand-indigo);
    padding: 14px 16px;
    border-radius: 10px;
    margin: 16px 0;
}
.callout strong { display: block; margin-bottom: 6px; }
.callout ul { margin: 6px 0 0 20px; }

/* Tokushoho spec table */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin-top: 12px;
    table-layout: fixed;
}
.spec-table th,
.spec-table td {
    text-align: left;
    vertical-align: top;
    padding: 12px 12px;
    border-bottom: 1px solid var(--border);
    word-break: break-word;
}
.spec-table th {
    width: 36%;
    color: var(--text-secondary);
    font-weight: 600;
    background: #fafafa;
}

/* ===== Contact-specific ===== */
.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 4px 0 8px;
}
.contact-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: #f9f9fb;
    border-radius: 14px;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.contact-card:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.contact-card .ico {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: var(--brand-grad-strong);
    color: #fff;
    flex-shrink: 0;
}
.contact-card .info { flex: 1; min-width: 0; }
.contact-card .info .title {
    font-size: 16px;
    font-weight: 600;
}
.contact-card .info .desc {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 2px;
    word-break: break-all;
}
.contact-card .arr {
    font-size: 18px;
    color: var(--text-tertiary);
    flex-shrink: 0;
}

/* ===== Footer ===== */
footer {
    text-align: center;
    padding: 28px 20px;
    font-size: 12px;
    color: var(--text-tertiary);
    border-top: 1px solid var(--border);
    background: var(--bg);
}
footer p { margin: 4px 0; }
footer a {
    color: var(--text-tertiary);
    text-decoration: none;
    margin: 0 6px;
}
footer a:hover { color: var(--text); }

/* ===== Responsive breakpoints ===== */
@media (max-width: 480px) {
    .topbar__inner { padding: 10px 14px; gap: 8px; }
    .topbar__brand { font-size: 16px; }
    .topbar__back { font-size: 13px; }

    .hero { padding: 44px 16px 40px; }
    .hero h1 { font-size: 24px; }
    .hero__tagline { font-size: 14px; }
    .hero__icon { width: 80px; height: 80px; border-radius: 20px; }

    .page-header { padding: 28px 16px 4px; }
    .page-header h1 { font-size: 22px; }

    .cards { padding: 12px 12px 40px; gap: 10px; }
    .card { padding: 16px 14px; gap: 12px; }
    .card__icon { width: 38px; height: 38px; border-radius: 10px; font-size: 18px; }
    .card__body h3 { font-size: 15px; }
    .card__body p { font-size: 12px; }

    .content {
        margin: 12px 12px 40px;
        padding: 22px 18px;
        border-radius: 14px;
    }
    .content h2 { font-size: 16px; margin: 20px 0 8px; }
    .content p, .content ol, .content ul { font-size: 14px; }

    .spec-table { font-size: 13px; }
    .spec-table th, .spec-table td { padding: 10px 8px; }
    .spec-table th { width: 40%; }

    .contact-card { padding: 12px 14px; gap: 12px; }
    .contact-card .ico { width: 40px; height: 40px; font-size: 18px; }
    .contact-card .info .title { font-size: 15px; }
}