:root {
    --brand: #6c4cf1;
    --brand-dark: #5238c4;
    --ink: #1f2230;
    --muted: #6b7280;
    --bg: #f7f7fb;
    --card: #ffffff;
    --border: #e5e7eb;
    --danger: #dc2626;
    --success: #16a34a;
    --radius: 12px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.7;
}

.container {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- ヘッダ ---- */
.site-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.brand {
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--brand);
    letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.nav { display: flex; align-items: center; gap: 18px; }
.inline-form { display: inline; margin: 0; }
.link-button {
    background: none; border: none; color: var(--ink);
    cursor: pointer; font: inherit; padding: 0;
}
.link-button:hover { color: var(--brand); }

/* ---- ボタン ---- */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background .15s, border-color .15s, color .15s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }
.btn-secondary { background: #111827; color: #fff; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--ink); }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); }
.btn-lg { padding: 14px 28px; font-size: 1.05rem; }
.btn-block { display: block; width: 100%; text-align: center; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---- 稼働前告知 ---- */
.launch-notice {
    background: linear-gradient(90deg, #f3f0ff, #eef2ff);
    border-bottom: 1px solid var(--border);
}
.launch-notice .container {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    flex-wrap: wrap;
}
.launch-notice-badge {
    display: inline-block;
    background: var(--brand);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .04em;
    padding: 3px 10px;
    border-radius: 999px;
    white-space: nowrap;
}
.launch-notice-text {
    color: var(--ink);
    font-size: 14px;
    font-weight: 600;
}

/* ---- パスキー ---- */
.passkey-nudge { background: #eef2ff; border-bottom: 1px solid var(--border); }
.passkey-nudge .container { padding: 10px 0; font-size: 14px; font-weight: 600; color: var(--ink); }
.passkey-nudge a { margin-left: 8px; color: var(--brand); }
.passkey-required-notice { background: #fef2f2; border: 1px solid #fca5a5; color: var(--danger); padding: 12px 14px; border-radius: var(--radius); margin: 12px 0; font-weight: 600; }
.passkey-section { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.passkey-list { list-style: none; padding: 0; margin: 16px 0; }
.passkey-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 8px; }
.passkey-add { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.passkey-add input { flex: 1 1 220px; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius); }
.passkey-msg { min-height: 1.2em; margin-top: 8px; font-size: 14px; font-weight: 600; }
.passkey-ok { color: var(--success); }
.passkey-err { color: var(--danger); }

/* ---- 公開サイト (P3) ---- */
.home-section { margin: 40px 0; }
.home-section h2 { margin-bottom: 16px; }
.empty-state { color: var(--muted); padding: 20px; background: var(--card); border: 1px dashed var(--border); border-radius: var(--radius); text-align: center; }
.muted { color: var(--muted); font-size: 13px; }
.streamer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; }
.streamer-card { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; padding: 18px 12px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); text-decoration: none; color: var(--ink); transition: border-color .15s, transform .15s; }
.streamer-card:hover { border-color: var(--brand); transform: translateY(-2px); }
.post-feed { list-style: none; padding: 0; margin: 0; }
.post-feed li { padding: 10px 0; border-bottom: 1px solid var(--border); }
.post-feed a { font-weight: 600; }
.avatar-xl { width: 112px; height: 112px; border-radius: 50%; object-fit: cover; background: var(--border); }
.streamer-page { max-width: 760px; margin: 0 auto; }
.streamer-cover { height: 200px; border-radius: var(--radius); overflow: hidden; background: linear-gradient(135deg, var(--brand), #a78bfa); }
.streamer-cover img { width: 100%; height: 100%; object-fit: cover; }
.streamer-head { display: flex; gap: 20px; align-items: flex-end; margin-top: -40px; padding: 0 16px 8px; }
.streamer-head h1 { margin: 0; }
.streamer-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.streamer-bio, .streamer-schedule, .streamer-posts { margin-top: 28px; }
.schedule-list { list-style: none; padding: 0; margin: 0; }
.schedule-list li { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid var(--border); }
.schedule-when { color: var(--brand); font-weight: 600; font-variant-numeric: tabular-nums; }
.streamer-videos { margin-top: 28px; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.video-item { margin: 0; }
.video-item video { width: 100%; border-radius: var(--radius); background: #000; aspect-ratio: 9/16; object-fit: contain; }
.video-item figcaption { font-size: 13px; margin-top: 6px; }
.post-detail { max-width: 720px; margin: 0 auto; }
.post-body { margin-top: 16px; line-height: 1.9; }

/* ---- 配信者ダッシュボード ---- */
.dash-status { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 12px 0; }

/* ---- 法的ページ ---- */
.legal-page { max-width: 760px; margin: 0 auto; line-height: 1.9; }
.legal-page h2 { margin-top: 28px; font-size: 18px; }
.legal-page ul { margin: 8px 0 8px 1.4em; }
.legal-table { width: 100%; border-collapse: collapse; margin-top: 16px; }
.legal-table th, .legal-table td { text-align: left; vertical-align: top; padding: 10px 12px; border: 1px solid var(--border); }
.legal-table th { width: 34%; background: var(--bg); font-weight: 600; white-space: nowrap; }
.consent-note { font-size: 13px; color: var(--muted); background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; margin: 8px 0 4px; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-bottom: 8px; font-size: 13px; }

/* ---- 交流 (P6) ---- */
.streamer-meta { display: flex; align-items: center; gap: 14px; margin-top: 10px; flex-wrap: wrap; }
.follow-count { font-size: 14px; }
.like-btn { display: inline-block; border: 1px solid var(--border); background: var(--card); color: var(--muted); border-radius: 999px; padding: 4px 12px; font-size: 13px; cursor: pointer; }
.like-btn.liked { color: #e0245e; border-color: #f7b6c8; background: #fff0f5; }
.post-actions { display: flex; align-items: center; gap: 14px; margin: 20px 0; flex-wrap: wrap; }
.report-box { display: inline-block; font-size: 12px; }
.report-box summary { color: var(--muted); cursor: pointer; }
.report-inner { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; align-items: center; }
.report-inner select, .report-inner input { padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 12px; }
.comments { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--border); }
.comment-form { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; margin-bottom: 20px; }
.comment-form textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius); }
.comment-list { list-style: none; padding: 0; margin: 0; }
.comment-item { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.comment-item .avatar { width: 40px; height: 40px; flex-shrink: 0; }
.comment-body { flex: 1; }
.comment-head { display: flex; gap: 8px; align-items: baseline; }
.comment-actions { margin-top: 4px; }
.video-item figcaption { display: flex; justify-content: space-between; align-items: center; gap: 8px; }

/* ---- 管理コンソール ---- */
.admin-table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 13px; }
.admin-table th, .admin-table td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.admin-table th { color: var(--muted); font-weight: 600; white-space: nowrap; }
.role-chip { display: inline-flex; align-items: center; gap: 4px; background: var(--card); border: 1px solid var(--border); border-radius: 999px; padding: 2px 8px; margin: 2px; font-size: 12px; }
.role-x { border: none; background: none; color: var(--danger); cursor: pointer; font-size: 14px; line-height: 1; padding: 0; }
.role-select { padding: 4px 6px; border: 1px solid var(--border); border-radius: 6px; font-size: 12px; }
.inline-form { display: inline; }
.tag { display: inline-block; background: var(--accent, #eef2ff); color: var(--brand); border-radius: 6px; padding: 1px 6px; font-size: 11px; }
.status { display: inline-block; border-radius: 6px; padding: 2px 8px; font-size: 12px; font-weight: 600; }
.status-active { background: #ecfdf5; color: var(--success); }
.status-suspended { background: #fef2f2; color: var(--danger); }
.status-withdrawn { background: #f3f4f6; color: var(--muted); }

/* ---- RBAC 管理 ---- */
.rbac-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.perm-group { border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px; margin: 10px 0; }
.perm-group legend { font-weight: 600; font-size: 13px; color: var(--muted); padding: 0 6px; }
.perm-item { display: flex; gap: 8px; align-items: baseline; padding: 4px 0; font-size: 13px; }

/* ---- リカバリーコード ---- */
.recovery-section { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.recovery-codes-box { background: #fffbeb; border: 1px solid #fcd34d; border-radius: var(--radius); padding: 14px 16px; margin: 12px 0; }
.recovery-codes { list-style: none; padding: 0; margin: 10px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }
.recovery-codes li { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 15px; letter-spacing: 1px; background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; text-align: center; }

/* ---- セキュリティ ---- */
.security-section { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.security-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.table-scroll { overflow-x: auto; }
.security-table { width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px; }
.security-table th, .security-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.security-table th { color: var(--muted); font-weight: 600; }

/* ---- フラッシュ ---- */
.flash { padding: 12px 0; font-weight: 600; }
.flash-success { background: #ecfdf5; color: var(--success); }
.flash-error { background: #fef2f2; color: var(--danger); }
.flash-info { background: #eff6ff; color: #2563eb; }

/* ---- レイアウト ---- */
.main-content { padding: 40px 20px 64px; }

/* ---- ヒーロー ---- */
.hero { text-align: center; padding: 48px 0 32px; }
.hero h1 { font-size: 2.1rem; margin: 0 0 12px; letter-spacing: -0.02em; }
.hero .lead { color: var(--muted); max-width: 680px; margin: 0 auto 24px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- 機能カード ---- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin: 48px 0;
}
.feature-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}
.feature-card h3 { margin-top: 0; }
.feature-card p { color: var(--muted); margin-bottom: 0; }

.cta-streamer {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
}

/* ---- 認証フォーム ---- */
.auth-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-width: 420px;
    margin: 24px auto;
    padding: 32px;
}
.auth-card h1 { text-align: center; font-size: 1.5rem; margin-top: 0; }
.auth-sub { text-align: center; color: var(--muted); margin-bottom: 24px; }

.sso-list { display: flex; flex-direction: column; gap: 10px; }
.sso-btn {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 12px; border: 1px solid var(--border); border-radius: var(--radius);
    background: #fff; color: var(--ink); font-weight: 600;
}
.sso-btn:hover { text-decoration: none; border-color: var(--brand); }
.sso-x { background: #000; color: #fff; border-color: #000; }
.sso-x:hover { color: #fff; }

.divider { display: flex; align-items: center; text-align: center; color: var(--muted); margin: 20px 0; gap: 12px; }
.divider::before, .divider::after { content: ""; flex: 1; border-bottom: 1px solid var(--border); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 10px 12px;
    border: 1px solid var(--border); border-radius: var(--radius);
    font: inherit; background: #fff;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--brand);
}
.form-hint { color: var(--muted); font-size: .85rem; margin-top: 4px; }
.form-error { color: var(--danger); font-size: .85rem; margin-top: 4px; }
.field-errors { background: #fef2f2; color: var(--danger); border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px; }
.field-errors ul { margin: 0; padding-left: 20px; }

/* ---- プロフィール ---- */
.profile-header { display: flex; align-items: center; gap: 20px; margin-bottom: 32px; }
.avatar { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border); background: #eee; }
.avatar-lg { width: 128px; height: 128px; }
.definition-list { display: grid; grid-template-columns: 160px 1fr; gap: 8px 16px; }
.definition-list dt { color: var(--muted); font-weight: 600; }
.definition-list dd { margin: 0; }

.danger-zone {
    border: 1px solid #fecaca; background: #fff5f5;
    border-radius: var(--radius); padding: 24px; margin-top: 40px;
}
.danger-zone h2 { color: var(--danger); margin-top: 0; font-size: 1.1rem; }

/* ---- エラーページ ---- */
.error-page { text-align: center; padding: 80px 20px; }
.error-page h1 { font-size: 4rem; margin: 0; color: var(--brand); }

/* ---- レスポンシブ ---- */
@media (max-width: 640px) {
    .hero h1 { font-size: 1.6rem; }
    .definition-list { grid-template-columns: 1fr; }
    .definition-list dt { margin-top: 8px; }
}