/* BJJNote LP 共通スタイル
   日本語版 (/) と英語版 (/en/) が同じファイルを読む。
   デザイン言語は BJJ MATCH LOG (matchlog.bjjhub.biz) と共通で、
   カラートークンは matchlog の index.php :root と同じ値。 */

/* ============================================
   BJJNote LP
   デザイン言語は BJJ MATCH LOG (matchlog.bjjhub.biz) と共通。
   トークンは matchlog の index.php :root と同じ値を使うこと。
   姉妹サービス間で見た目が地続きであることが狙い。
   ============================================ */
:root {
    --bg-deep: #060a0f;
    --bg-primary: #0a0d12;
    --bg-secondary: #10141b;
    --bg-card: #10141b;
    --bg-card-hover: #161b24;
    --bg-elevated: #1d2430;

    --text-primary: #e9edf3;
    --text-secondary: #9aa5b5;
    --text-muted: #7d8899;
    --text-faint: #5c6675;

    --gold: #f0c040;
    --gold-bright: #ffd76a;
    --gold-dim: #c99a24;

    --border-subtle: rgba(255,255,255,0.07);
    --border-medium: rgba(255,255,255,0.09);
    --border-glow: rgba(255,255,255,0.14);

    --radius-sm: 3px;

    --max: 1280px;
    --pad: 2rem;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 92px; }

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    /* 長音記号や小書き仮名が行頭に来ないよう日本語の禁則を厳密に適用する */
    line-break: strict;
    overflow-wrap: break-word;
}

/* 畳のテクスチャ（matchlog と同じ） */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        repeating-linear-gradient(0deg, transparent 0px, transparent 1px, rgba(255,255,255,0.015) 1px, rgba(255,255,255,0.015) 2px),
        repeating-linear-gradient(90deg, transparent 0px, transparent 1px, rgba(255,255,255,0.01) 1px, rgba(255,255,255,0.01) 2px);
    background-size: 20px 20px;
    pointer-events: none;
    z-index: 0;
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

a { color: inherit; }

img { max-width: 100%; }

/* ====== 共通パーツ ====== */
.eyebrow {
    font-family: 'Oswald', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gold-dim);
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 1.4rem;
    flex-wrap: wrap;
}

.eyebrow .sep { color: var(--text-faint); font-weight: 400; }
.eyebrow .ja { color: var(--text-muted); letter-spacing: 0.12em; font-family: 'Noto Sans JP', sans-serif; font-weight: 500; }

.section-head {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.section-head::before {
    content: '';
    width: 4px;
    height: 22px;
    background: var(--gold);
    flex-shrink: 0;
}

.section-head h2 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-primary);
}

.section-head .ja {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.section-head .rule {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-medium), transparent);
    min-width: 40px;
}

section { position: relative; z-index: 1; }

.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: var(--gold);
    color: #0a0d12;
    font-family: 'Oswald', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.95rem 2rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
    min-height: 48px;
}

.btn-gold:hover { background: var(--gold-bright); transform: translateY(-1px); }
.btn-gold svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border-glow);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 0.8rem 1.6rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.2s ease;
    min-height: 44px;
}

.btn-ghost:hover { color: var(--gold); border-color: var(--gold-dim); }

/* ====== TICKER（姉妹サイト切替）====== */
.ticker { background: var(--bg-deep); border-bottom: 1px solid var(--border-medium); position: relative; z-index: 101; }
.ticker-inner { max-width: var(--max); margin: 0 auto; display: flex; align-items: stretch; min-height: 30px; }
.ticker-tab {
    display: flex; align-items: center; gap: 8px; padding: 0 14px;
    border-right: 1px solid var(--border-medium);
    font-family: 'Oswald', sans-serif; font-size: 10px; font-weight: 600;
    letter-spacing: .15em; color: var(--text-secondary); text-decoration: none;
    transition: color 0.2s ease;
}
.ticker-tab.current { background: var(--bg-primary); border-left: 1px solid var(--border-medium); color: var(--text-primary); font-weight: 700; }
.ticker-tab:hover { color: var(--text-primary); }
.ticker-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); flex-shrink: 0; }
.ticker-ext { width: 9px; height: 9px; flex-shrink: 0; }
.ticker-spacer { flex-grow: 1; }
.ticker-meta {
    display: flex; align-items: center; gap: 14px; padding: 0 14px;
    font-size: 10px; font-weight: 500;
    letter-spacing: .15em; color: var(--text-faint);
}

/* ====== HEADER ====== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(180deg, rgba(5,5,8,0.98) 0%, rgba(5,5,8,0.9) 100%);
    backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.85rem 0;
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--gold) 50%, transparent 100%);
    opacity: 0.3;
}

.header-content {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 var(--pad);
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo-group { display: flex; align-items: center; gap: 0.9rem; text-decoration: none; }

.logo-mark {
    width: 44px; height: 44px;
    border-radius: 12px;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 14px 28px rgba(0,0,0,0.38), 0 0 0 1px rgba(255,215,0,0.22);
}

.logo-mark img { display: block; width: 100%; height: 100%; object-fit: cover; }

.logo-text { display: flex; flex-direction: column; }

.logo-main {
    font-family: 'Oswald', sans-serif;
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    line-height: 1;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 0.66rem;
    color: var(--text-muted);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    font-weight: 500;
    line-height: 1.6;
}

.header-nav { display: flex; gap: 0.35rem; margin-left: auto; }

.header-nav a {
    font-family: 'Oswald', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.header-nav a:hover { color: var(--gold); background: rgba(240, 192, 64, 0.08); }

.header-cta {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: var(--gold); color: #0a0d12;
    font-family: 'Oswald', sans-serif; font-size: 0.78rem; font-weight: 600;
    letter-spacing: 0.1em; text-transform: uppercase;
    padding: 0.6rem 1.1rem; border-radius: var(--radius-sm);
    text-decoration: none; transition: background 0.2s ease; white-space: nowrap;
    margin-left: auto;
}
.header-nav + .header-cta { margin-left: 0; }
.header-cta:hover { background: var(--gold-bright); }
.header-cta svg { width: 15px; height: 15px; flex-shrink: 0; }

/* ====== HERO ====== */
.hero { background: var(--bg-primary); border-bottom: 1px solid var(--border-subtle); padding: 4.5rem 0 0; overflow: hidden; }

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 3.5rem;
    align-items: end;
}

.hero h1 {
    font-size: clamp(1.9rem, 3.5vw, 2.85rem);
    text-wrap: balance;
    font-weight: 900;
    line-height: 1.3;
    letter-spacing: 0.01em;
    margin-bottom: 1.5rem;
}

.hero h1 .gold { color: var(--gold); }

.hero-lead {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.95;
    margin-bottom: 2.2rem;
    max-width: 40em;
}

.hero-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }

.hero-note { font-size: 0.8rem; color: var(--text-faint); }

/* ヒーロー下のスペック帯 */
.spec-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--border-subtle);
}

.spec {
    padding: 1.4rem 1.6rem;
    border-right: 1px solid var(--border-subtle);
}
.spec:last-child { border-right: 0; }

.spec-value {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gold);
    line-height: 1.25;
}

.spec-label {
    font-family: 'Oswald', sans-serif;
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.spec-ja { font-size: 0.78rem; color: var(--text-secondary); margin-top: 0.15rem; line-height: 1.6; }

/* 端末モック */
.hero-shots { display: flex; gap: 1rem; align-items: flex-end; justify-content: center; }

.phone {
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border-glow);
    box-shadow: 0 30px 60px rgba(0,0,0,0.55);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.phone img { display: block; width: 100%; height: auto; }

.phone.lead { width: 220px; }
.phone.side { width: 168px; opacity: 0.9; }

/* ====== FEATURES ====== */
.features { padding: 5.5rem 0; background: var(--bg-deep); }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1px;
    background: var(--border-subtle);
    border: 1px solid var(--border-subtle);
}

.feature {
    background: var(--bg-card);
    padding: 2.2rem 1.9rem;
    transition: background 0.2s ease;
}

.feature:hover { background: var(--bg-card-hover); }

.feature-no {
    font-family: 'Oswald', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--gold-dim);
    display: block;
    margin-bottom: 1.1rem;
}

.feature h3 {
    font-size: 1.18rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.feature p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.95; }

/* 図版付きの2カラム */
.showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    align-items: center;
    margin-top: 4.5rem;
    padding-top: 4.5rem;
    border-top: 1px solid var(--border-subtle);
}

.showcase-media { display: flex; gap: 1.1rem; justify-content: center; }
.showcase-media .phone { width: 200px; }

.showcase h3 { font-size: clamp(1.3rem, 2.2vw, 1.6rem); font-weight: 900; line-height: 1.55; margin-bottom: 1.1rem; }
.showcase p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.95; }

.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }

.tag {
    font-size: 0.75rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
}

/* ====== PREMIUM ====== */
.premium { padding: 5.5rem 0; background: var(--bg-primary); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }

.premium-lead { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 2.5rem; }

.premium-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.2rem; }

.premium-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-top: 2px solid var(--gold);
    padding: 2rem 1.8rem;
}

.premium-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.8rem; }
.premium-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.95; }

.premium-icon { font-size: 1.5rem; display: block; margin-bottom: 1rem; line-height: 1; }

/* ====== SISTER (MATCH LOG) ====== */
.sister { padding: 5.5rem 0; background: var(--bg-deep); }

.sister-card {
    border: 1px solid var(--border-medium);
    background:
        radial-gradient(120% 140% at 100% 0%, rgba(240,192,64,0.07) 0%, transparent 55%),
        var(--bg-card);
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    align-items: center;
}

.sister-logo {
    font-family: 'Oswald', sans-serif;
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    line-height: 1.15;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.35rem;
}

.sister-host {
    font-family: 'Oswald', sans-serif;
    font-size: 0.66rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1.6rem;
}

.sister-copy { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.95; margin-bottom: 1.8rem; }
.sister-copy strong { color: var(--text-primary); font-weight: 700; }

.sister-stats { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border-subtle); margin-bottom: 1.8rem; }

.sister-stat { padding: 1rem 1.1rem; border-right: 1px solid var(--border-subtle); }
.sister-stat:last-child { border-right: 0; }

.sister-stat b {
    display: block;
    font-family: 'Oswald', sans-serif;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--gold);
    line-height: 1.25;
}

.sister-stat span {
    font-family: 'Oswald', sans-serif;
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.sister-side {
    border-left: 1px solid var(--border-subtle);
    padding-left: 2.5rem;
}

.sister-side .eyebrow { margin-bottom: 1rem; }
.sister-side p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.95; }

.org-list { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1.2rem; }

.org {
    font-family: 'Oswald', sans-serif;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
    border: 1px solid var(--border-medium);
    padding: 0.25rem 0.6rem;
}

/* ====== FAQ ====== */
.faq { padding: 5.5rem 0; background: var(--bg-primary); border-top: 1px solid var(--border-subtle); }

.faq-list { border-top: 1px solid var(--border-subtle); }

.faq-item { border-bottom: 1px solid var(--border-subtle); }

.faq-q {
    width: 100%;
    background: none;
    border: 0;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.98rem;
    font-weight: 700;
    text-align: left;
    padding: 1.4rem 3rem 1.4rem 0;
    cursor: pointer;
    position: relative;
    line-height: 1.7;
    transition: color 0.2s ease;
}

.faq-q:hover { color: var(--gold); }

.faq-q::after {
    content: '';
    position: absolute;
    right: 0.6rem;
    top: 50%;
    width: 9px; height: 9px;
    border-right: 2px solid var(--gold);
    border-bottom: 2px solid var(--gold);
    transform: translateY(-70%) rotate(45deg);
    transition: transform 0.25s ease;
}

.faq-item.open .faq-q::after { transform: translateY(-20%) rotate(-135deg); }

.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }

.faq-a p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.95; padding: 0 3rem 1.5rem 0; }

/* ====== SUPPORT ====== */
.support { padding: 5.5rem 0; background: var(--bg-deep); }

.support-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.2rem; }

.support-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    padding: 2rem 1.8rem;
    display: flex;
    flex-direction: column;
}

.support-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.7rem; }
.support-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.9; margin-bottom: 1.5rem; flex: 1; }

.support-card .btn-ghost { align-self: flex-start; }

.company {
    margin-top: 3rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.company p { font-size: 0.85rem; color: var(--text-secondary); }

/* ====== FOOTER ====== */
footer { background: var(--bg-primary); border-top: 1px solid var(--border-subtle); padding: 2.5rem 0; position: relative; z-index: 1; }

.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }

.footer-links { display: flex; gap: 1.4rem; flex-wrap: wrap; }

.footer-links a {
    font-size: 0.82rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover { color: var(--gold); }

.copyright { font-size: 0.78rem; color: var(--text-faint); }

/* ====== RESPONSIVE ====== */
@media (max-width: 1080px) {
    .hero-grid { grid-template-columns: 1fr 380px; gap: 2.5rem; }
    .phone.lead { width: 180px; }
    .phone.side { width: 138px; }
    .sister-card { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
    .sister-side { border-left: 0; border-top: 1px solid var(--border-subtle); padding-left: 0; padding-top: 2rem; }
    .header-nav a { padding: 0.5rem 0.6rem; font-size: 0.74rem; }
}

@media (max-width: 900px) {
    :root { --pad: 1.25rem; }

    .header-nav { display: none; }

    .hero { padding-top: 3rem; }

    /* grid の 1fr は min-width:auto なので、中の端末3枚(456px)が列幅を押し広げて
       画面外へ溢れる。minmax(0,1fr) で列が中身に引きずられないようにする。 */
    .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }

    /* 端末は縮めず横スクロールで見せる（縮めると画面の中身が読めなくなるため）。
       コンテナ余白を打ち消して画面端まで流す。 */
    .hero-shots {
        justify-content: flex-start;
        overflow-x: auto;
        margin-left: calc(var(--pad) * -1);
        margin-right: calc(var(--pad) * -1);
        padding: 0 var(--pad) 0.5rem;
        scrollbar-width: none;
    }
    .hero-shots::-webkit-scrollbar { display: none; }

    .hero-actions { margin-bottom: 2rem; }

    .spec-strip { grid-template-columns: repeat(2, 1fr); }
    .spec { border-bottom: 1px solid var(--border-subtle); }
    .spec:nth-child(2n) { border-right: 0; }

    .showcase { grid-template-columns: minmax(0, 1fr); gap: 2.2rem; margin-top: 3rem; padding-top: 3rem; }
    .showcase-media { order: -1; }

    .sister-card { padding: 2rem 1.5rem; }
    .sister-stats { grid-template-columns: 1fr; }
    .sister-stat { border-right: 0; border-bottom: 1px solid var(--border-subtle); }
    .sister-stat:last-child { border-bottom: 0; }

    .features, .premium, .sister, .faq, .support { padding: 3.5rem 0; }

    .company { flex-direction: column; align-items: flex-start; }
    .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
    .logo-main { font-size: 1.2rem; }
    .logo-sub { font-size: 0.58rem; letter-spacing: 0.16em; }
    .logo-mark { width: 38px; height: 38px; }
    .header-cta { padding: 0.55rem 0.8rem; font-size: 0.7rem; }
    .ticker-meta { display: none; }
    .btn-gold { width: 100%; }
    .phone.lead { width: 168px; }
    .phone.side { width: 128px; }
    .showcase-media .phone { width: 150px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { transition: none !important; }
}