/* JIS Random Quiz */
.jis-random-launcher,.jis-random-session{box-sizing:border-box;margin:0 0 28px;padding:24px;border:1px solid #dbe5ef;border-radius:18px;background:#fff;box-shadow:0 10px 30px rgba(15,23,42,.06);color:#0f172a}
.jis-random-launcher *,.jis-random-session *{box-sizing:border-box}
.jis-random-launcher__head,.jis-random-session__header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:20px}
.jis-random-launcher__head h2,.jis-random-session__header h2{margin:3px 0 7px;font-size:clamp(22px,3vw,30px);line-height:1.25;color:#0f172a}
.jis-random-launcher__head p,.jis-random-session__header p{margin:0;color:#64748b;line-height:1.75}
.jis-random-kicker{display:inline-block;font-size:11px;font-weight:900;letter-spacing:.14em;color:#0b63ce}
.jis-random-paid-badge{flex:0 0 auto;display:inline-flex;align-items:center;gap:5px;padding:7px 11px;border-radius:999px;background:#eef6ff;color:#075aaa;font-size:12px;font-weight:900;white-space:nowrap}
.jis-random-notice{margin:0 0 18px;padding:12px 14px;border-radius:10px;background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;font-weight:700}
.jis-random-locked{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;padding:18px;border-radius:14px;background:#f8fafc;border:1px solid #e2e8f0}
.jis-random-locked__icon{font-size:24px}.jis-random-locked strong{display:block;margin-bottom:4px}.jis-random-locked p{margin:0;color:#64748b;font-size:14px}.jis-random-locked__actions{display:flex;gap:8px;flex-wrap:wrap}
.jis-random-btn,.jis-random-start-btn,.jis-random-nav-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 16px;border:1px solid #0b63ce;border-radius:10px;background:#0b63ce;color:#fff!important;text-decoration:none!important;font-weight:800;line-height:1.2;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}
.jis-random-btn:hover,.jis-random-start-btn:hover,.jis-random-nav-btn:hover{transform:translateY(-1px);box-shadow:0 7px 18px rgba(11,99,206,.18)}
.jis-random-btn--ghost{background:#fff;color:#0b63ce!important}
.jis-random-form{display:grid;gap:16px}.jis-random-fieldset{margin:0;padding:17px;border:1px solid #e2e8f0;border-radius:14px}.jis-random-fieldset legend{padding:0 8px;font-size:15px;font-weight:900;color:#0f172a}
.jis-random-status-toolbar{display:flex;gap:7px;justify-content:flex-end;margin:-2px 0 10px}.jis-random-mini-btn,.jis-random-count-chip{appearance:none;border:1px solid #cbd5e1;border-radius:999px;background:#fff;color:#334155;padding:6px 10px;font-size:12px;font-weight:800;cursor:pointer}.jis-random-mini-btn:hover,.jis-random-count-chip:hover{border-color:#0b63ce;color:#0b63ce}
.jis-random-status-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.jis-random-status-option{display:block;cursor:pointer}.jis-random-status-option input{position:absolute;opacity:0;pointer-events:none}.jis-random-status-option__body{display:flex;align-items:center;gap:10px;min-height:64px;padding:12px;border:2px solid #e2e8f0;border-radius:12px;background:#fff;transition:border-color .15s ease,box-shadow .15s ease,background .15s ease}.jis-random-status-option input:checked+.jis-random-status-option__body{border-color:#0b63ce;background:#f4f9ff;box-shadow:0 0 0 2px rgba(11,99,206,.08)}.jis-random-status-option__icon{font-size:21px}.jis-random-status-option__text{display:flex;flex-direction:column;min-width:0}.jis-random-status-option__text strong{font-size:13px;color:#0f172a}.jis-random-status-option__text small{color:#64748b;font-weight:800}
.jis-random-help{margin:10px 0 0;color:#64748b;font-size:12px;line-height:1.6}.jis-random-count-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.jis-random-all-toggle{display:inline-flex;align-items:center;gap:8px;font-weight:900}.jis-random-all-toggle input{width:18px;height:18px}.jis-random-count-input-wrap{display:flex;align-items:center;gap:7px;color:#475569;font-size:13px}.jis-random-count-input-wrap input{width:92px;padding:9px 10px;border:1px solid #cbd5e1;border-radius:9px;font-size:16px;font-weight:800}.jis-random-count-input-wrap input:disabled{opacity:.45;background:#f1f5f9}.jis-random-quick-counts{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}
.jis-random-form__footer{display:flex;align-items:center;justify-content:space-between;gap:16px}.jis-random-method-note{color:#64748b;font-size:12px;line-height:1.6}.jis-random-start-btn{border:0;min-width:190px;font-size:15px}
.jis-random-session__meta{display:flex;gap:10px 18px;flex-wrap:wrap;margin:0 0 15px;padding:12px 14px;border-radius:12px;background:#f8fafc;color:#475569;font-size:13px}.jis-random-meta-note{width:100%;color:#9a3412}.jis-random-session__actions{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:18px}.jis-random-reshuffle-form{margin:0}
.jis-random-nav{margin:16px 0 20px;padding:14px;border:1px solid #e2e8f0;border-radius:14px;background:#fff}.jis-random-nav__progress{margin-bottom:12px}.jis-random-nav__progress-head{display:flex;justify-content:space-between;gap:10px;margin-bottom:7px;font-size:13px;color:#475569}.jis-random-progress-track{height:8px;overflow:hidden;border-radius:999px;background:#e2e8f0}.jis-random-progress-track>span{display:block;height:100%;border-radius:inherit;background:#0b63ce}.jis-random-nav__actions{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px}.jis-random-nav-btn:first-child{justify-self:start}.jis-random-nav-btn:last-child{justify-self:end}.jis-random-nav-btn.is-disabled{border-color:#e2e8f0;background:#f8fafc;color:#94a3b8!important;cursor:not-allowed;box-shadow:none;transform:none}.jis-random-page-count{font-size:13px;font-weight:900;color:#475569}
.jis-random-question-list{display:grid;gap:22px}.jis-random-question-item{min-width:0}.jis-random-source-link{margin:-8px 0 16px;text-align:right}.jis-random-source-link a{font-size:12px;color:#64748b!important;text-decoration:underline!important}.jis-random-case-context{margin:0 0 10px;border:1px solid #d7e3ef;border-radius:12px;background:#f8fbff;overflow:hidden}.jis-random-case-context>summary{cursor:pointer;padding:12px 14px;font-weight:900;color:#0b63ce}.jis-random-case-context__body{padding:4px 14px 14px;color:#334155}.jis-random-session-error{margin:20px 0;padding:24px;border:1px solid #e2e8f0;border-radius:16px;background:#fff}.jis-random-session-error h2{margin-top:0}
body.jis-question-theme-dark .jis-random-session,body.jis-question-theme-dark .jis-random-nav,body.jis-question-theme-dark .jis-random-session-error{background:#111827;border-color:#334155;color:#e5e7eb}body.jis-question-theme-dark .jis-random-session__header h2{color:#f8fafc}body.jis-question-theme-dark .jis-random-session__header p,body.jis-question-theme-dark .jis-random-session__meta,body.jis-question-theme-dark .jis-random-nav__progress-head,body.jis-question-theme-dark .jis-random-page-count{color:#cbd5e1}body.jis-question-theme-dark .jis-random-session__meta{background:#1f2937}body.jis-question-theme-dark .jis-random-case-context{background:#172033;border-color:#334155}body.jis-question-theme-dark .jis-random-case-context__body{color:#e5e7eb}body.jis-question-theme-dark .jis-random-btn--ghost{background:#111827}
@media(max-width:782px){.jis-random-launcher,.jis-random-session{padding:16px;border-radius:14px}.jis-random-launcher__head,.jis-random-session__header{gap:10px}.jis-random-launcher__head p,.jis-random-session__header p{font-size:13px}.jis-random-status-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.jis-random-form__footer{align-items:stretch;flex-direction:column}.jis-random-start-btn{width:100%}.jis-random-locked{grid-template-columns:auto 1fr}.jis-random-locked__actions{grid-column:1/-1}.jis-random-locked__actions .jis-random-btn{flex:1}.jis-random-nav__actions{grid-template-columns:1fr 1fr}.jis-random-page-count{grid-column:1/-1;grid-row:1;text-align:center}.jis-random-nav-btn:first-child{grid-column:1;grid-row:2;width:100%}.jis-random-nav-btn:last-child{grid-column:2;grid-row:2;width:100%}.jis-random-session__actions{align-items:stretch;flex-direction:column}.jis-random-session__actions>.jis-random-btn,.jis-random-reshuffle-form,.jis-random-reshuffle-form .jis-random-btn{width:100%}}
@media(max-width:480px){.jis-random-launcher__head,.jis-random-session__header{flex-direction:column}.jis-random-paid-badge{align-self:flex-start}.jis-random-status-grid{grid-template-columns:1fr}.jis-random-count-row{align-items:flex-start;flex-direction:column;gap:10px}.jis-random-nav-btn{padding:9px 10px;font-size:12px}.jis-random-status-toolbar{justify-content:flex-start}}