.paper-status { margin: 1rem auto; max-width: 75rem; padding: 1rem; background: var(--fl-tint-soft); border-radius: 8px; color: var(--fl-ink); }
.paper-status.is-error { color: var(--error-color); background: #FDECEA; }
.paper-reader { padding-top: 2rem; padding-bottom: 3rem; }
.paper-question-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 1.1rem; margin-bottom: 1rem; }
.paper-reader [hidden], .paper-reader[hidden] { display: none; }
.paper-product:disabled { cursor: not-allowed; opacity: .7; }
.paper-access-note { min-height: 2rem; margin-top: 1rem; }
.paper-library :focus-visible, .paper-reader button:focus-visible { outline: 3px solid var(--accent-color); outline-offset: 2px; }
.paper-status:empty { display: none; }

/* Exam-style reader: practice mode, no timer */
.paper-reader { scroll-margin-top: 5rem; padding-top: .5rem; }
.pyq-window { border: 1px solid var(--border-color); border-radius: 12px; background: #F5F8FC; overflow: hidden; overflow: clip; box-shadow: 0 6px 20px rgba(15, 40, 80, .08); }
.pyq-bar { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1rem; padding: .75rem 1rem; background: var(--primary-dark); color: white; }
.pyq-bar-title { flex: 1 1 14rem; min-width: 0; }
.pyq-kicker { display: block; font-size: .72rem; letter-spacing: .04em; text-transform: uppercase; opacity: .8; }
.pyq-bar h2 { margin: 0; font-size: 1.15rem; color: white; }
.pyq-bar h2:focus { outline: none; }
.pyq-tabs { display: flex; gap: .35rem; }
.pyq-tab { padding: .4rem .8rem; border: 1px solid rgba(255, 255, 255, .45); border-radius: 999px; background: transparent; color: white; font: inherit; font-size: .85rem; cursor: pointer; }
.pyq-tab[aria-pressed="true"] { background: white; color: var(--primary-dark); font-weight: 600; cursor: default; }
.pyq-exit { padding: .4rem .8rem; border: 0; border-radius: 6px; background: rgba(255, 255, 255, .15); color: white; font: inherit; font-size: .85rem; cursor: pointer; }
.pyq-exit:hover, .pyq-tab:not([aria-pressed="true"]):hover { background: rgba(255, 255, 255, .25); }
.pyq-body { display: grid; grid-template-columns: minmax(0, 1fr) 17rem; gap: 1rem; padding: 1rem; }
.pyq-main { display: flex; flex-direction: column; gap: .75rem; min-width: 0; }
.pyq-qhead { display: flex; justify-content: space-between; align-items: center; gap: .5rem; font-weight: 600; color: var(--primary-dark); }
.pyq-marks { flex-shrink: 0; white-space: nowrap; padding: .2rem .6rem; border-radius: 999px; background: var(--fl-tint-soft); font-size: .8rem; }
#paperQuestion { padding: 1.25rem; background: white; border: 1px solid var(--border-color); border-radius: 10px; }
.paper-question-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 1.05rem; margin-bottom: 1rem; }
.paper-options { display: grid; gap: .5rem; }
.paper-option { display: flex; align-items: flex-start; gap: .75rem; width: 100%; text-align: left; padding: .7rem .8rem; white-space: pre-wrap; overflow-wrap: anywhere; border: 1px solid var(--border-color); border-radius: 8px; background: white; font: inherit; color: inherit; cursor: pointer; }
.paper-option:not(:disabled):hover { border-color: var(--primary-color); background: var(--fl-tint-soft); }
.paper-option:disabled { cursor: default; }
.paper-option-letter { flex: 0 0 1.8rem; height: 1.8rem; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: #E8EEF6; font-weight: 600; font-size: .85rem; }
.paper-option-text { flex: 1; min-width: 0; padding-top: .15rem; }
.paper-option.is-correct { background: #E6F4EA; border-color: var(--success-color); }
.paper-option.is-correct .paper-option-letter { background: var(--success-color); color: white; }
.paper-option.is-wrong { background: #FDECEA; border-color: var(--error-color); }
.paper-option.is-wrong .paper-option-letter { background: var(--error-color); color: white; }
.paper-explanation { white-space: pre-wrap; overflow-wrap: anywhere; padding: .9rem 1rem; margin-top: 1rem; background: var(--fl-tint-soft); border-left: 3px solid var(--primary-color); border-radius: 6px; }
.paper-explanation:focus { outline: none; }
.paper-answer-line { font-weight: 600; margin-bottom: .4rem; }
.pyq-nav { display: flex; justify-content: space-between; gap: .5rem; }
.pyq-nav .btn { flex: 1 1 0; min-width: 0; justify-content: center; white-space: normal; }
.pyq-nav .btn:disabled { opacity: .5; cursor: not-allowed; }
.pyq-palette { align-self: start; position: sticky; top: 5.5rem; padding: 1rem; background: white; border: 1px solid var(--border-color); border-radius: 10px; }
.pyq-score { display: grid; grid-template-columns: repeat(3, 1fr); gap: .4rem; margin: 0 0 .9rem; text-align: center; }
.pyq-score div { padding: .45rem .2rem; border-radius: 6px; background: #F5F8FC; }
.pyq-score dt { font-size: .7rem; color: var(--text-secondary, #5b6b7f); }
.pyq-score dd { margin: 0; font-weight: 700; color: var(--primary-dark); }
.paper-question-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .35rem; }
.paper-question-grid button { min-width: 0; height: 2.4rem; padding: 0; border: 1px solid var(--border-color); border-radius: 6px; background: #F5F8FC; font: inherit; font-size: .85rem; cursor: pointer; }
.paper-question-grid button.is-correct { background: var(--success-color); border-color: var(--success-color); color: white; }
.paper-question-grid button.is-wrong { background: var(--error-color); border-color: var(--error-color); color: white; }
.paper-question-grid button.is-revealed { background: #FFF4D6; border-color: #E0A800; }
.paper-question-grid button[aria-current="true"] { outline: 2px solid var(--primary-dark); outline-offset: 1px; font-weight: 700; }
.pyq-legend { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: .35rem .5rem; margin: .9rem 0 0; padding: 0; font-size: .75rem; }
.pyq-legend li { display: flex; align-items: center; gap: .35rem; }
.pyq-dot { width: .8rem; height: .8rem; border-radius: 3px; border: 1px solid var(--border-color); background: #F5F8FC; }
.pyq-dot.is-correct { background: var(--success-color); border-color: var(--success-color); }
.pyq-dot.is-wrong { background: var(--error-color); border-color: var(--error-color); }
.pyq-dot.is-revealed { background: #FFF4D6; border-color: #E0A800; }
@media (max-width: 860px) {
    .pyq-body { grid-template-columns: minmax(0, 1fr); padding: .75rem; }
    .pyq-palette { position: static; }
    .paper-question-grid { grid-template-columns: repeat(10, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
    .paper-question-grid { grid-template-columns: repeat(7, minmax(0, 1fr)); }
    #paperQuestion { padding: 1rem; }
    .pyq-nav .btn { padding-left: .4rem; padding-right: .4rem; font-size: .85rem; }
    .pyq-bar { padding: .7rem .8rem; }
    .pyq-bar-title { flex-basis: 0; }
    .pyq-tabs { order: 3; flex-basis: 100%; }
    .pyq-kicker { font-size: .66rem; }
}

/* Owner's papers page */
.paper-library { padding-top: 1.25rem; padding-bottom: 1rem; }
.paper-library[hidden], #paperLibraryBody[hidden] { display: none; }
.paper-back { display: inline-flex; align-items: center; gap: .45rem; margin-bottom: 1rem; font-weight: 600; color: var(--primary-color); text-decoration: none; }
.paper-back:hover { text-decoration: underline; }
.paper-library-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .25rem 1rem; }
.paper-library-head h2 { margin: 0; font-size: 1.4rem; color: var(--fl-ink); }
.paper-library-head h2:focus { outline: none; }
.paper-library-access { margin: 0; color: var(--fl-green); font-weight: 600; font-size: .9rem; }
.paper-library-hint { margin: .4rem 0 1rem; color: var(--text-secondary); }
.paper-batch-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: .85rem; }
.paper-batch { display: flex; flex-direction: column; gap: .75rem; padding: 1rem; background: #fff; border: 1px solid var(--border-color); border-top: 4px solid var(--primary-color); border-radius: 12px; box-shadow: var(--shadow-sm); }
.paper-batch-head { display: flex; flex-direction: column; gap: .2rem; }
.paper-batch-head h3 { margin: 0; font-size: 1.05rem; color: var(--fl-ink); }
.paper-batch-meta { font-size: .82rem; color: var(--text-secondary); }
.paper-batch-meta.is-held { color: var(--fl-amber); font-weight: 600; }
.paper-section-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.paper-section-actions .btn { flex: 1 1 0; min-width: 6rem; }
.paper-section-actions .btn:disabled { opacity: .5; cursor: not-allowed; }
.paper-product.is-owned { background: var(--success-color); border-color: var(--success-color); color: #fff; }
.paper-product.is-owned:hover { background: #166534; border-color: #166534; }