:root {
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-soft: #f9fafb;
    --line: #d8dee5;
    --line-strong: #b6c2cf;
    --ink: #102a43;
    --muted: #4f6375;

    --brand: #006d77;
    --brand-strong: #004f56;
    --accent: #ff8c42;
    --accent-strong: #d96a22;

    --success-bg: #e8f7ef;
    --success-ink: #0d7a45;
    --error-bg: #fcecec;
    --error-ink: #b42318;

    --shadow-sm: 0 2px 12px rgba(16, 42, 67, 0.08);
    --shadow-md: 0 12px 30px rgba(16, 42, 67, 0.12);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Manrope', sans-serif;
    color: var(--ink);
    background: radial-gradient(circle at 15% 15%, #dceff5 0, transparent 28%),
        radial-gradient(circle at 90% 0, #ffe9da 0, transparent 30%),
        var(--bg);
    padding-bottom: 6rem;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
    margin: 0;
    font-family: 'Sora', sans-serif;
    letter-spacing: -0.02em;
}

p {
    margin: 0;
}

.bg-orb {
    position: fixed;
    z-index: -1;
    border-radius: 999px;
    filter: blur(80px);
    opacity: 0.3;
    pointer-events: none;
}

.orb-1 {
    width: 300px;
    height: 300px;
    top: -120px;
    left: -100px;
    background: #53b9c4;
}

.orb-2 {
    width: 260px;
    height: 260px;
    bottom: -100px;
    right: -70px;
    background: #f4b17a;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    backdrop-filter: blur(10px);
    background: rgba(244, 246, 248, 0.86);
    border-bottom: 1px solid rgba(16, 42, 67, 0.07);
}

.brand-block {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.logo-badge {
    width: 2.5rem;
    height: 2.5rem;
    display: grid;
    place-items: center;
    border-radius: 0.8rem;
    color: #fff;
    background: linear-gradient(135deg, var(--brand), #0e8f9b);
    box-shadow: var(--shadow-sm);
}

.logo-badge .material-icons-round {
    font-size: 1.35rem;
}

.brand-kicker {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.app-header h1 {
    font-size: clamp(1rem, 2.7vw, 1.3rem);
}

.layout {
    width: min(1080px, calc(100% - 2rem));
    margin: 1.25rem auto 0;
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 980px) {
    .layout {
        grid-template-columns: minmax(300px, 360px) 1fr;
        align-items: start;
    }

    .control-card {
        position: sticky;
        top: 5.5rem;
    }
}

.reveal {
    animation: rise-in 420ms ease both;
}

@keyframes rise-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.control-card,
.worksheet-card {
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(16, 42, 67, 0.08);
}

.control-card {
    padding: 1rem;
}

.control-card h2,
.worksheet-header h2 {
    font-size: 1.15rem;
}

.control-grid {
    margin-top: 1rem;
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.group-label {
    font-size: 0.75rem;
    color: var(--muted);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.source-toggle {
    display: flex;
    width: 100%;
    gap: 0.35rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 0.22rem;
    background: var(--surface-soft);
}

.source-btn {
    flex: 1;
    border: none;
    background: transparent;
    border-radius: 8px;
    color: var(--muted);
    min-width: 0;
    padding: 0.55rem 0.45rem;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    transition: background-color 180ms ease, color 180ms ease;
}

.source-btn.active {
    background: #e6f4f6;
    color: var(--brand-strong);
}

.source-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.toggle-group {
    display: flex;
    width: 100%;
    gap: 0.35rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.22rem;
    background: var(--surface-soft);
}

.toggle-btn {
    flex: 1;
    border: none;
    background: transparent;
    border-radius: 999px;
    color: var(--muted);
    min-width: 0;
    padding: 0.45rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.toggle-btn.active {
    background: #e6f4f6;
    color: var(--brand-strong);
}

.toggle-btn:hover {
    transform: translateY(-1px);
}

.toggle-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.select-wrapper {
    position: relative;
}

select,
input[type="text"],
input[type="password"] {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 0.72rem 0.9rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--ink);
    background: #fff;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

select {
    padding-right: 2.4rem;
    appearance: none;
}

.select-arrow {
    position: absolute;
    right: 0.65rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--muted);
}

input:focus,
select:focus,
button:focus-visible {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(0, 109, 119, 0.15);
}

button {
    font-family: inherit;
    cursor: pointer;
}

.control-actions {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.8rem;
}

.btn-primary {
    border: none;
    color: #fff;
    font-weight: 800;
    border-radius: var(--radius-sm);
    padding: 0.72rem 1rem;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.45rem;
    transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand), #0b8a95);
    box-shadow: 0 10px 20px rgba(0, 109, 119, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    filter: grayscale(0.2);
}

.icon-btn,
.icon-btn-small {
    border: none;
    background: transparent;
    color: var(--muted);
    border-radius: 999px;
    display: grid;
    place-items: center;
}

.icon-btn {
    width: 2.35rem;
    height: 2.35rem;
}

.icon-btn-small {
    width: 1.95rem;
    height: 1.95rem;
}

.icon-btn:hover,
.icon-btn-small:hover {
    background: #e8edf2;
    color: var(--ink);
}

.magic-input-wrap {
    position: relative;
}

.magic-input-wrap .material-icons-round {
    position: absolute;
    top: 50%;
    left: 0.75rem;
    transform: translateY(-50%);
    color: var(--accent-strong);
    pointer-events: none;
}

.magic-input-wrap input {
    padding-left: 2.6rem;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0;
    cursor: pointer;
}

.checkbox-row input[type="checkbox"] {
    width: 0.95rem;
    height: 0.95rem;
    margin: 0;
    accent-color: var(--brand);
    cursor: pointer;
}

.checkbox-row span {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 0.01em;
    line-height: 1.2;
}

.status-line {
    width: 100%;
    min-height: 1.3rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
}

.status-line.is-success {
    color: var(--success-ink);
    background: var(--success-bg);
    border-radius: 8px;
    padding: 0.5rem 0.6rem;
}

.status-line.is-error {
    color: var(--error-ink);
    background: var(--error-bg);
    border-radius: 8px;
    padding: 0.5rem 0.6rem;
}

.loader {
    width: 0.95rem;
    height: 0.95rem;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #fff;
    display: none;
    animation: spin 900ms linear infinite;
    margin-left: auto;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.worksheet-card {
    padding: 1.1rem;
}

.worksheet-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.4rem;
}

.worksheet-subtitle {
    color: var(--muted);
    font-size: 0.9rem;
}

.worksheet-container {
    margin-top: 1rem;
    min-height: 560px;
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #fff;
    padding: 2rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.worksheet-container.is-locked {
    cursor: progress;
    user-select: none;
    filter: saturate(0.9);
}

.worksheet-container.is-paused {
    user-select: none;
    filter: saturate(0.86) brightness(0.96);
}

.worksheet-container.is-stale {
    user-select: none;
    filter: saturate(0.82) brightness(0.94);
}

.worksheet-container.is-locked .option,
.worksheet-container.is-locked .write-in-box {
    pointer-events: none;
}

.worksheet-loading-overlay {
    position: absolute;
    inset: 0;
    z-index: 32;
    border-radius: inherit;
    background: rgba(255, 255, 255, 0.84);
    backdrop-filter: blur(1.5px);
    display: grid;
    place-items: center;
    padding: 1rem;
}

.worksheet-loading-card {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    background: #ffffff;
    border: 1px solid #d7e4ee;
    border-radius: 12px;
    padding: 0.75rem 0.9rem;
    box-shadow: 0 12px 24px rgba(16, 42, 67, 0.12);
    color: #1d334c;
    font-weight: 700;
}

.worksheet-loading-spinner {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 2px solid rgba(0, 109, 119, 0.24);
    border-top-color: var(--brand);
    animation: spin 850ms linear infinite;
}

.worksheet-input-blocker {
    position: absolute;
    inset: 0;
    z-index: 28;
    background: linear-gradient(180deg, rgba(248, 252, 255, 0.56) 0%, rgba(241, 247, 252, 0.62) 100%);
    backdrop-filter: blur(1.3px);
    cursor: progress;
}

.worksheet-stale-blocker {
    position: absolute;
    inset: 0;
    z-index: 24;
    background: linear-gradient(180deg, rgba(246, 250, 253, 0.52) 0%, rgba(238, 245, 250, 0.58) 100%);
    backdrop-filter: blur(0.9px);
    display: grid;
    place-items: center;
    padding: 1rem;
    cursor: not-allowed;
}

.worksheet-stale-card {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    max-width: min(90%, 520px);
    border: 1px solid #cad9e4;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.95);
    color: #1f3f58;
    font-weight: 700;
    padding: 0.65rem 0.85rem;
    box-shadow: 0 10px 20px rgba(16, 42, 67, 0.12);
}

.worksheet-stale-card .material-icons-round {
    color: #0b7285;
}

.worksheet-loading-floating {
    position: fixed;
    top: 5.1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 140;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(16, 42, 67, 0.94);
    color: #fff;
    border-radius: 999px;
    padding: 0.55rem 0.9rem;
    box-shadow: 0 14px 30px rgba(16, 42, 67, 0.32);
    font-weight: 700;
    max-width: min(92vw, 560px);
}

.worksheet-loading-floating p {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.empty-state {
    display: grid;
    place-items: center;
    text-align: center;
    background: linear-gradient(180deg, #fff 0%, #f7f9fc 100%);
}

.empty-content {
    max-width: 360px;
    color: var(--muted);
}

.empty-icon {
    display: inline-flex;
    margin-bottom: 0.6rem;
    font-size: 2.8rem;
    color: var(--line-strong);
}

.fab-print {
    position: fixed;
    right: 1.2rem;
    bottom: 1.2rem;
    width: 56px;
    height: 56px;
    border-radius: 999px;
    border: none;
    display: grid;
    place-items: center;
    color: #fff;
    background: var(--ink);
    box-shadow: var(--shadow-md);
    transition: transform 180ms ease;
}

.fab-print:hover {
    transform: scale(1.06);
}

.modal {
    border: none;
    border-radius: var(--radius-md);
    padding: 0;
    width: min(440px, calc(100% - 2rem));
    box-shadow: var(--shadow-md);
}

.modal::backdrop {
    background: rgba(16, 42, 67, 0.42);
    backdrop-filter: blur(2px);
}

.modal-content {
    padding: 1.2rem;
}

.modal-header,
.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header {
    margin-bottom: 0.8rem;
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.modal-field-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: 0.01em;
}

.helper-text {
    color: var(--muted);
    font-size: 0.85rem;
}

.modal-footer {
    justify-content: flex-end;
    gap: 0.6rem;
    margin-top: 1rem;
}

.btn-secondary {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--muted);
    border-radius: var(--radius-sm);
    padding: 0.64rem 0.95rem;
    font-weight: 700;
}

.btn-secondary:hover {
    background: #f7fafc;
    color: var(--ink);
}

.btn-modal-primary {
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.64rem 0.95rem;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--brand), #0b8a95);
}

.btn-modal-primary:hover {
    filter: brightness(1.04);
}

/* Worksheet content styles */
.print-header,
.print-footer,
.footer {
    display: none;
}

.exercise-block {
    margin-bottom: 2rem;
    break-inside: avoid;
}

.passage-box {
    padding: 1.3rem;
    border: 1px dashed #a8bac7;
    border-radius: var(--radius-md);
    background: #f7fbfc;
    line-height: 1.6;
    font-size: clamp(1.2rem, 2.8vw, 1.7rem);
    margin-bottom: 0.45rem;
}

.highlight-noun {
    color: #0b7285;
    font-weight: 800;
}

.highlight-verb {
    color: #c2410c;
    font-weight: 800;
}

.highlight-adj {
    color: #6d28d9;
    font-weight: 800;
}

.questions-section h3 {
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.choice-scoreboard {
    position: sticky;
    top: 5.25rem;
    z-index: 12;
    border: 1px solid #d9e7ee;
    border-radius: 14px;
    padding: 0.75rem 0.85rem;
    background: linear-gradient(180deg, #f2fbff 0%, #ffffff 100%);
    margin-bottom: 1rem;
    box-shadow: 0 8px 22px rgba(16, 42, 67, 0.08);
}

.score-topline {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.6rem;
    margin-bottom: 0.45rem;
}

.score-title {
    font-weight: 700;
    color: #20435f;
}

.score-stars {
    font-weight: 800;
    color: #d97706;
}

.score-track {
    width: 100%;
    height: 10px;
    border-radius: 999px;
    background: #e6edf2;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    width: 0;
    border-radius: inherit;
    background: linear-gradient(90deg, #0b7285, #2a9d8f);
    transition: width 220ms ease;
}

.score-meta {
    margin-top: 0.45rem;
    font-size: 0.9rem;
    color: #36566f;
    font-weight: 600;
}

.completion-banner {
    display: flex;
    gap: 0.65rem;
    align-items: center;
    border-radius: 14px;
    padding: 0.75rem 0.85rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff6df 0%, #ffe6b7 100%);
    border: 1px solid #f5d38b;
}

.completion-icon {
    color: #b45309;
}

.completion-title {
    font-weight: 800;
    color: #7c2d12;
}

.completion-subtitle {
    font-size: 0.9rem;
    color: #9a3412;
}

.question-item {
    margin-bottom: 1rem;
}

.question-text {
    margin-bottom: 0.55rem;
    font-weight: 700;
    color: #1d334c;
}

.options-grid {
    display: grid;
    gap: 0.5rem;
}

.option {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.7rem 0.75rem;
    background: #fff;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    text-align: left;
    font-size: 1rem;
    color: var(--ink);
}

.option:hover {
    border-color: #9daebb;
    background: #f8fbfd;
}

.option.selected {
    border-color: var(--brand);
    background: #ebf6f7;
}

.option.is-answer {
    border-color: #0f9d58;
    background: #eefbf3;
}

.option.is-correct {
    border-color: #0f9d58;
    background: #dff5e8;
}

.option.is-wrong {
    border-color: #dc2626;
    background: #fef0f0;
}

.choice-feedback {
    min-height: 1.1rem;
    margin: 0.5rem 0 0.2rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: #4f6375;
}

.choice-feedback.is-correct {
    color: #0d7a45;
}

.choice-feedback.is-wrong {
    color: #b42318;
}

.circle {
    width: 20px;
    height: 20px;
    border-radius: 999px;
    border: 2px solid #b8c2cc;
    flex-shrink: 0;
}

.option.selected .circle {
    border-color: var(--brand);
    background: var(--brand);
    box-shadow: inset 0 0 0 3px #fff;
}

.write-in-box {
    display: block;
    width: 100%;
    min-height: 98px;
    border: 2px solid #d8e1e8;
    border-bottom-width: 4px;
    border-radius: 12px;
    background: repeating-linear-gradient(to bottom, #fff 0, #fff 20px, #f6f9fb 20px, #f6f9fb 21px);
    line-height: 21px;
    padding: 0 12px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--ink);
    resize: vertical;
    outline: none;
    transition: border-color 180ms ease;
}

.write-in-shell {
    width: 100%;
}

.write-guide {
    display: none;
}

.write-in-box:focus {
    border-color: var(--brand);
}

.worksheet-container.mode-writing .options-grid {
    display: none;
}

.worksheet-container.mode-choice .write-in-shell,
.worksheet-container.mode-choice .write-in-box {
    display: none;
}

.worksheet-container.mode-writing .choice-scoreboard,
.worksheet-container.mode-writing .completion-banner {
    display: none;
}

.confetti-piece {
    position: absolute;
    top: -20px;
    width: 10px;
    height: 14px;
    opacity: 0.95;
    animation-name: confetti-fall;
    animation-timing-function: linear;
    animation-fill-mode: forwards;
}

.celebration-overlay {
    position: fixed;
    inset: 0;
    z-index: 120;
    pointer-events: auto;
    overflow: hidden;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at 50% 45%, rgba(255, 253, 240, 0.62) 0%, rgba(255, 253, 240, 0) 58%),
        rgba(16, 42, 67, 0.18);
}

.celebration-overlay.is-fading {
    animation: celebration-fade 560ms ease forwards;
}

.celebration-confetti-layer {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.celebration-card {
    position: relative;
    padding: 1rem 1.3rem;
    border-radius: 16px;
    border: 1px solid #f5d38b;
    background: linear-gradient(135deg, #fff6df 0%, #ffe7ba 100%);
    box-shadow: 0 16px 34px rgba(16, 42, 67, 0.18);
    text-align: center;
    animation: celebration-pop 420ms ease both;
    min-width: min(94vw, 440px);
}

.celebration-title {
    font-family: 'Sora', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: #7c2d12;
}

.celebration-text {
    margin-top: 0.2rem;
    color: #9a3412;
    font-weight: 700;
}

.celebration-subtext {
    margin-top: 0.35rem;
    color: #8f3f18;
    font-weight: 600;
    font-size: 0.92rem;
}

.celebration-close {
    position: absolute;
    top: 0.45rem;
    right: 0.45rem;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: 1px solid #efc983;
    background: #fff5db;
    color: #8b3a14;
    font-size: 1.25rem;
    line-height: 1;
    font-weight: 800;
    display: grid;
    place-items: center;
}

.celebration-close:hover {
    background: #ffeec6;
}

.celebration-actions {
    margin-top: 0.8rem;
    display: flex;
    justify-content: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.celebration-nav-btn {
    border: none;
    border-radius: 999px;
    padding: 0.62rem 1rem;
    color: #fff;
    font-weight: 800;
    font-size: 0.9rem;
    box-shadow: 0 8px 18px rgba(16, 42, 67, 0.2);
    transition: transform 140ms ease, filter 140ms ease;
}

.celebration-nav-btn.prev {
    background: linear-gradient(135deg, #006d77, #0b8a95);
}

.celebration-nav-btn.next {
    background: linear-gradient(135deg, #ef476f, #f78c6b);
}

.celebration-nav-btn:hover {
    transform: translateY(-1px);
    filter: brightness(1.04);
}

@keyframes confetti-fall {
    from {
        transform: translateY(-16px) rotate(0deg);
        opacity: 0.95;
    }

    to {
        transform: translateY(115vh) rotate(520deg);
        opacity: 0;
    }
}

@keyframes celebration-pop {
    from {
        opacity: 0;
        transform: translateY(14px) scale(0.94);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes celebration-fade {
    to {
        opacity: 0;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.hidden {
    display: none !important;
}

@media (max-width: 640px) {
    .app-header {
        padding-inline: 0.8rem;
    }

    .layout {
        width: calc(100% - 1rem);
    }

    .worksheet-container {
        padding: 1rem;
    }

    .choice-scoreboard {
        top: 4.75rem;
    }

    .worksheet-loading-floating {
        top: 4.55rem;
    }

    .fab-print {
        right: 0.8rem;
        bottom: 0.8rem;
    }
}

/* Print styles */
@media print {
    @page {
        margin: 0.75cm;
        size: letter;
    }

    body {
        background: #fff;
        padding: 0;
    }

    .reveal {
        animation: none !important;
        transform: none !important;
    }

    .bg-orb,
    .app-header,
    .control-card,
    .fab-print,
    .worksheet-header,
    .modal {
        display: none !important;
    }

    .choice-scoreboard,
    .completion-banner,
    .worksheet-loading-overlay,
    .worksheet-stale-blocker,
    .worksheet-input-blocker,
    .worksheet-loading-floating,
    .celebration-overlay {
        display: none !important;
    }

    .layout,
    .worksheet-card,
    .worksheet-container {
        width: 100%;
        margin: 0;
        padding: 0;
        border: none;
        box-shadow: none;
        min-height: auto;
    }

    .print-pages {
        display: block;
    }

    .print-page {
        display: block;
    }

    .print-page + .print-page {
        break-before: page;
        page-break-before: always;
    }

    .print-header {
        display: flex;
        justify-content: space-between;
        gap: 0.35rem;
        border-bottom: 2px solid #000;
        margin: 0 0 0.2rem;
        padding: 0 0 0.12rem;
        font-size: 9.2pt;
        font-weight: 800;
        text-transform: uppercase;
        font-family: 'Sora', sans-serif;
    }

    .print-header > span:last-child {
        white-space: nowrap;
    }

    .print-page-content {
        min-height: 0;
    }

    .print-footer {
        margin-top: 0.08rem;
        display: flex;
        justify-content: flex-end;
        font-size: 8.1pt;
        font-weight: 700;
        line-height: 1;
        color: #2e4459;
        font-family: 'Manrope', sans-serif;
        font-variant-numeric: tabular-nums;
        white-space: nowrap;
    }

    .print-pages[data-print-level="3"] .print-header {
        margin-bottom: 0.16rem;
        padding-bottom: 0.07rem;
        font-size: 8.8pt;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .print-header,
    .print-pages[data-print-level="2"][data-print-mode="writing"] .print-header {
        margin-bottom: 0.14rem;
        padding-bottom: 0.07rem;
        font-size: 8.9pt;
    }

    .print-pages[data-print-level="3"] .print-footer {
        margin-top: 0.05rem;
        font-size: 7.6pt;
    }

    .print-pages[data-print-level="3"] .exercise-block {
        margin-bottom: 0.24rem;
        padding: 0.22rem 0.28rem 0.26rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .exercise-block,
    .print-pages[data-print-level="2"][data-print-mode="writing"] .exercise-block {
        margin-bottom: 0.2rem;
        padding: 0.18rem 0.24rem 0.22rem;
        border: 1px solid #d3dde6;
        border-radius: 8px;
    }

    .print-pages[data-print-level="3"] .passage-container {
        padding: 0.14rem 0.24rem 0.18rem;
        margin-bottom: 0.14rem;
        border-left-width: 3px;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .passage-container,
    .print-pages[data-print-level="2"][data-print-mode="writing"] .passage-container {
        padding: 0.1rem 0.16rem 0.12rem;
        margin-bottom: 0.1rem;
        border-left-width: 3px;
        border-radius: 6px;
    }

    .print-pages[data-print-level="3"] .passage-box {
        font-size: 11.8pt;
        line-height: 1.2;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .passage-box,
    .print-pages[data-print-level="2"][data-print-mode="writing"] .passage-box {
        font-size: 11.1pt;
        line-height: 1.12;
    }

    .print-pages[data-print-level="3"] .questions-section {
        grid-template-columns: 1fr;
        gap: 0.16rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .questions-section {
        gap: 0.12rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .question-item,
    .print-pages[data-print-level="2"][data-print-mode="writing"] .question-item {
        padding: 0.1rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .question-text,
    .print-pages[data-print-level="2"][data-print-mode="writing"] .question-text {
        font-size: 8.8pt;
        line-height: 1.05;
        margin-bottom: 0.08rem;
        padding-bottom: 0.05rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .options-grid {
        gap: 0.08rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .option {
        padding: 0.02rem 0;
        min-height: 1.05rem;
        font-size: 7.9pt;
        line-height: 1.03;
        gap: 0.14rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="choice"] .option .circle {
        width: 9px;
        height: 9px;
        border-width: 1px;
    }

    .print-pages[data-print-level="2"][data-print-mode="writing"] .questions-section {
        grid-template-columns: 1fr;
        gap: 0.1rem;
    }

    .print-pages[data-print-level="2"][data-print-mode="writing"] .write-in-box {
        min-height: 2.15rem;
        height: 2.15rem;
        margin-top: 0.1rem;
        font-size: 8.7pt;
        line-height: 1.16;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="2"] .write-in-shell {
        position: relative;
        min-height: 2.15rem;
        margin-top: 0.1rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="2"] .write-guide {
        display: block;
        position: absolute;
        left: 0;
        right: 0;
        border-bottom: 1px dotted #bcc4cb;
        pointer-events: none;
        z-index: 2;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="2"] .write-guide-1 {
        top: 1.55rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="2"] .write-guide-2 {
        top: 1.95rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="2"] .write-guide-2 {
        display: none;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="2"] .write-in-box {
        border: none;
        border-radius: 0;
        background: transparent !important;
        min-height: 2.15rem;
        height: 2.15rem;
        margin-top: 0;
        padding: 0;
        line-height: 1.05rem;
        resize: none;
        overflow: hidden;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .print-header,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .print-header {
        margin-bottom: 0.24rem;
        padding-bottom: 0.11rem;
        font-size: 10.3pt;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .exercise-block,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .exercise-block {
        margin-bottom: 0.42rem;
        padding: 0.36rem 0.44rem 0.4rem;
        border-radius: 8px;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .passage-container,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .passage-container {
        padding: 0.22rem 0.32rem 0.24rem;
        margin-bottom: 0.24rem;
        border-left-width: 3px;
        border-radius: 6px;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .passage-box,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .passage-box {
        font-size: 13.2pt;
        line-height: 1.28;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .questions-section,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .questions-section {
        gap: 0.28rem;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .question-item,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .question-item {
        padding: 0.24rem;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .question-text,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .question-text {
        font-size: 10.6pt;
        line-height: 1.16;
        margin-bottom: 0.16rem;
        padding-bottom: 0.1rem;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .options-grid,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .options-grid {
        gap: 0.18rem;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .option,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .option {
        padding: 0.04rem 0;
        min-height: 1.5rem;
        font-size: 9.2pt;
        line-height: 1.14;
        gap: 0.18rem;
    }

    .print-pages[data-print-level="1"][data-print-mode="choice"] .option .circle,
    .print-pages[data-print-level="1"][data-print-mode="writing"] .option .circle {
        width: 12px;
        height: 12px;
        border-width: 1px;
    }

    .print-pages[data-print-level="1"][data-print-mode="writing"] .write-in-box {
        min-height: 3.2rem;
        height: 3.2rem;
        margin-top: 0.18rem;
        font-size: 9.6pt;
        line-height: 1.26;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="1"] .write-in-shell {
        position: relative;
        min-height: 3.2rem;
        margin-top: 0.18rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="1"] .write-guide {
        display: block;
        position: absolute;
        left: 0;
        right: 0;
        border-bottom: 1px dotted #bcc4cb;
        pointer-events: none;
        z-index: 2;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="1"] .write-guide-1 {
        top: 2.2rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="1"] .write-guide-2 {
        top: 2.85rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="1"] .write-guide-2 {
        display: none;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="1"] .write-in-box {
        border: none;
        border-radius: 0;
        background: transparent !important;
        min-height: 3.2rem;
        height: 3.2rem;
        margin-top: 0;
        padding: 0;
        line-height: 1.6rem;
        resize: none;
        overflow: hidden;
    }

    .print-pages[data-print-level="1"][data-print-pages="1"] .print-page-content,
    .print-pages[data-print-level="2"][data-print-pages="1"] .print-page-content {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .print-pages[data-print-level="1"][data-print-pages="1"] .exercise-block,
    .print-pages[data-print-level="2"][data-print-pages="1"] .exercise-block {
        margin-bottom: 0.16rem;
    }

    .print-pages[data-print-level="1"][data-print-pages="1"] .exercise-block:last-of-type,
    .print-pages[data-print-level="2"][data-print-pages="1"] .exercise-block:last-of-type {
        margin-bottom: 0;
    }

    .print-pages[data-print-level="3"] .question-item {
        padding: 0.12rem;
    }

    .print-pages[data-print-level="3"] .question-text {
        font-size: 9.2pt;
        line-height: 1.1;
        margin-bottom: 0.1rem;
        padding-bottom: 0.06rem;
    }

    .print-pages[data-print-level="3"] .options-grid {
        gap: 0.1rem;
    }

    .print-pages[data-print-level="3"] .option {
        padding: 0.03rem 0;
        min-height: 1.25rem;
        font-size: 8.2pt;
        line-height: 1.05;
        gap: 0.18rem;
    }

    .print-pages[data-print-level="3"] .option .circle {
        width: 12px;
        height: 12px;
        border-width: 1.2px;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="3"] .write-in-shell {
        position: relative;
        min-height: 6.2rem;
        margin-top: 0.24rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="3"] .write-guide {
        display: block;
        position: absolute;
        left: 0;
        right: 0;
        border-bottom: 1px dotted #bcc4cb;
        pointer-events: none;
        z-index: 2;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="3"] .write-guide-1 {
        top: 2.7rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="3"] .write-guide-2 {
        top: 5.8rem;
    }

    .worksheet-container.mode-writing .print-pages[data-print-level="3"] .write-in-box {
        border: none;
        border-radius: 0;
        background: transparent !important;
        min-height: 6.2rem;
        height: 6.2rem;
        margin-top: 0;
        padding: 0;
        line-height: 3rem;
        resize: none;
        overflow: hidden;
    }

    .exercise-block {
        margin-bottom: 0.34rem;
        padding: 0.32rem 0.4rem 0.36rem;
        border: 1px solid #becad4;
        border-radius: 8px;
        background: #fff;
        break-inside: avoid-page;
        page-break-inside: avoid;
        page-break-after: auto;
    }

    .exercise-block + .exercise-block {
        border-top: none;
        padding-top: 0;
    }

    .exercise-block:last-of-type {
        margin-bottom: 0;
    }

    .passage-box {
        border: none;
        background: none;
        padding: 0;
        margin: 0;
        font-size: 12.8pt;
        line-height: 1.3;
        font-weight: 800;
    }

    .passage-container {
        break-after: avoid-page;
        page-break-after: avoid;
        background: #f6fafd;
        border: 1px solid #d3dde6;
        border-left: 4px solid #6f8ca1;
        border-radius: 8px;
        padding: 0.2rem 0.34rem 0.24rem;
        margin-bottom: 0.22rem;
    }

    .questions-section {
        break-before: avoid-page;
        page-break-before: avoid;
    }

    .questions-section {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.24rem;
        align-items: start;
    }

    .question-item {
        margin: 0;
        padding: 0.25rem;
        border: none;
        border-radius: 0;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .questions-section .question-item:nth-child(odd):last-child {
        grid-column: 1;
    }

    .question-text {
        font-size: 10.3pt;
        line-height: 1.2;
        font-weight: 800;
        margin-bottom: 0.2rem;
        padding-bottom: 0.12rem;
        border-bottom: 1px solid #d8d8d8;
        color: #000;
        display: block;
    }

    .options-grid {
        display: grid;
        gap: 0.2rem;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        width: 100%;
        margin: 0;
        padding: 0;
        border: none;
    }

    .option {
        border: none;
        border-radius: 0;
        background: none;
        break-inside: avoid;
        padding: 0.08rem 0;
        min-height: 1.6rem;
        font-size: 9pt;
        line-height: 1.14;
        color: #222;
        gap: 0.25rem;
        white-space: normal;
    }

    .option .circle {
        width: 14px;
        height: 14px;
        border-width: 1.5px;
    }

    .option span:last-child {
        overflow-wrap: anywhere;
    }

    .choice-feedback {
        display: none;
    }

    .write-in-box {
        border: none;
        border-bottom: 1px solid #777;
        border-radius: 0;
        background: none;
        min-height: 44px;
        margin-top: 0.2rem;
        margin-left: 0;
        width: 100%;
        padding: 0;
        font-size: 9.5pt;
        line-height: 1.15;
        display: block;
    }

    .footer {
        display: block;
        margin-top: 0.7rem;
        padding-top: 0.35rem;
        border-top: 1px solid #eee;
        text-align: center;
        color: #666;
        font-size: 8.6pt;
    }

    body.print-black .print-header,
    body.print-black .print-footer,
    body.print-black .passage-box,
    body.print-black .question-text,
    body.print-black .option,
    body.print-black .write-in-box,
    body.print-black .footer,
    body.print-black .highlight-noun,
    body.print-black .highlight-verb,
    body.print-black .highlight-adj {
        color: #000 !important;
    }

    body.print-black .print-header,
    body.print-black .exercise-block,
    body.print-black .passage-container,
    body.print-black .question-text,
    body.print-black .write-in-box,
    body.print-black .footer {
        border-color: #000 !important;
    }

    body.print-black .option.selected,
    body.print-black .option.is-answer,
    body.print-black .option.is-correct,
    body.print-black .option.is-wrong {
        background: none !important;
        border-color: #000 !important;
        color: #000 !important;
    }

    body.print-black .option .circle,
    body.print-black .option.selected .circle {
        border-color: #000 !important;
        background: transparent !important;
        box-shadow: none !important;
    }

    body.print-black .write-in-box {
        background: none !important;
    }

    body.print-black .worksheet-container.mode-writing .print-pages[data-print-level="3"] .write-in-box {
        background: transparent !important;
    }

    body.print-black .worksheet-container.mode-writing .print-pages[data-print-level="3"] .write-guide {
        border-bottom-color: #000 !important;
    }

    body.print-black .worksheet-container.mode-writing .print-pages[data-print-level="1"] .write-guide,
    body.print-black .worksheet-container.mode-writing .print-pages[data-print-level="2"] .write-guide {
        border-bottom-color: #000 !important;
    }
}