@import url('https://fonts.googleapis.com/css2?family=Fraunces:wght@600&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
    --bg: #f4f1ea;
    --surface: #fffdf8;
    --surface-strong: #ffffff;
    --surface-muted: #efe9dc;
    --text: #1f2a30;
    --text-soft: #5d6a71;
    --primary: #1f5f52;
    --primary-strong: #15483d;
    --accent: #b97c42;
    --danger: #9b3d35;
    --success: #1b7755;
    --warning: #b57d24;
    --border: rgba(31, 42, 48, 0.12);
    --shadow: 0 24px 60px rgba(31, 42, 48, 0.08);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, rgba(185, 124, 66, 0.18), transparent 28%),
        radial-gradient(circle at bottom left, rgba(31, 95, 82, 0.14), transparent 35%),
        var(--bg);
    color: var(--text);
    font-family: 'Manrope', 'Segoe UI', sans-serif;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

h1,
h2,
h3 {
    margin: 0;
}

p {
    margin: 0;
}

.auth-body {
    display: grid;
    place-items: center;
    padding: 32px;
}

.auth-layout {
    width: min(1080px, 100%);
}

.login-card {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 28px;
    align-items: stretch;
}

.login-copy,
.panel,
.stat-card,
.version-card,
.question-preview-card {
    background: rgba(255, 253, 248, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.login-copy {
    padding: 48px;
    background:
        linear-gradient(135deg, rgba(31, 95, 82, 0.95), rgba(21, 72, 61, 0.88)),
        var(--surface);
    color: #fff8f0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 480px;
}

.login-copy h1 {
    font-family: 'Fraunces', serif;
    font-size: clamp(2.4rem, 4vw, 4rem);
    line-height: 1;
    margin: 14px 0;
}

.login-copy p:last-child {
    max-width: 40ch;
    color: rgba(255, 248, 240, 0.85);
    line-height: 1.7;
}

.panel {
    padding: 24px;
}

.login-card form.panel {
    padding: 32px;
    display: grid;
    gap: 18px;
    align-content: center;
}

.app-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

.sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 28px 22px;
    background: rgba(22, 36, 41, 0.94);
    color: #eef2ea;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.sidebar-header {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.sidebar-brand {
    display: flex;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand strong {
    display: block;
}

.brand small {
    color: rgba(238, 242, 234, 0.7);
}

.brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--accent), #d8b26e);
    color: #302113;
    font-weight: 800;
}

.sidebar-nav {
    display: grid;
    gap: 8px;
}

.sidebar-close,
.sidebar-toggle {
    border: 0;
    background: transparent;
    color: inherit;
    cursor: pointer;
}

.sidebar-close {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    font-size: 1.8rem;
    line-height: 1;
    display: grid;
    place-items: center;
}

.sidebar-toggle {
    display: none;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.78);
    padding: 0;
    margin-bottom: 12px;
}

.sidebar-toggle span {
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--text);
    display: block;
    margin: 3px auto;
}

.sidebar-backdrop {
    position: fixed;
    inset: 0;
    border: 0;
    background: rgba(16, 22, 25, 0.4);
    backdrop-filter: blur(2px);
    z-index: 14;
}

.nav-link {
    padding: 14px 16px;
    border-radius: 14px;
    color: rgba(238, 242, 234, 0.78);
    transition: 180ms ease;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.sidebar-footer {
    margin-top: auto;
    display: grid;
    gap: 14px;
}

.danger-link {
    background: rgba(155, 61, 53, 0.18);
}

.user-chip {
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    display: grid;
    gap: 4px;
}

.user-chip span {
    color: rgba(238, 242, 234, 0.72);
    text-transform: capitalize;
}

.app-content {
    padding: 28px;
    display: grid;
    gap: 22px;
}

.topbar-heading {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.topbar h1 {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.topbar-user {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border);
    color: var(--text-soft);
}

.eyebrow {
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--accent);
}

.flash-stack {
    display: grid;
    gap: 10px;
}

.flash {
    padding: 14px 18px;
    border-radius: 16px;
    border: 1px solid transparent;
    font-weight: 600;
}

.flash-success {
    background: rgba(27, 119, 85, 0.1);
    color: var(--success);
    border-color: rgba(27, 119, 85, 0.18);
}

.flash-error {
    background: rgba(155, 61, 53, 0.1);
    color: var(--danger);
    border-color: rgba(155, 61, 53, 0.18);
}

.stats-grid,
.preview-panel,
.version-grid,
.proof-header-grid {
    display: grid;
    gap: 18px;
}

.stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stat-card {
    padding: 24px;
    display: grid;
    gap: 10px;
}

.stat-card strong {
    font-size: clamp(2rem, 4vw, 3rem);
}

.stat-label,
.preview-card span,
.summary-box span {
    color: var(--text-soft);
    font-size: 0.88rem;
}

.panel-row,
.section-heading-inline,
.button-row,
.question-title-row,
.inline-item,
.proof-header-grid,
.topbar-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.section-heading {
    display: grid;
    gap: 6px;
    margin-bottom: 20px;
}

.section-heading p,
.panel p,
.stat-card p,
.version-card span,
.hint-box span,
.summary-box small {
    color: var(--text-soft);
    line-height: 1.65;
}

.button-row {
    flex-wrap: wrap;
}

.top-spacing {
    margin-top: 18px;
}

.align-end {
    align-items: flex-end;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    padding: 12px 18px;
    border-radius: 14px;
    border: 1px solid transparent;
    font-weight: 700;
    cursor: pointer;
    transition: 180ms ease;
    font: inherit;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #f5faf5;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text);
    border-color: var(--border);
}

.btn-block {
    width: 100%;
}

.hint-box,
.summary-box,
.proof-meta-box,
.preview-card {
    padding: 14px 16px;
    background: var(--surface-muted);
    border-radius: 16px;
    display: grid;
    gap: 6px;
}

.proof-correction-paths {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.qr-resolver-camera {
    display: grid;
    gap: 12px;
    margin-top: 12px;
}

.qr-resolver-video {
    width: min(100%, 540px);
    aspect-ratio: 4 / 3;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: #101619;
}

.qr-resolver-status {
    color: var(--text-soft);
    font-size: 0.92rem;
}

.sample-block {
    margin: 10px 0 0;
    padding: 14px 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px dashed rgba(31, 42, 48, 0.18);
    overflow-x: auto;
    white-space: pre-wrap;
    color: var(--text-soft);
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.92rem;
    line-height: 1.6;
}

.proof-header-grid {
    align-items: start;
}

.proof-meta-box {
    min-width: 280px;
}

.version-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.proof-showcase {
    padding: 30px;
    background:
        radial-gradient(circle at top right, rgba(185, 124, 66, 0.12), transparent 28%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(248, 244, 236, 0.98));
}

.proof-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
    gap: 24px;
    align-items: start;
}

.proof-hero-copy {
    display: grid;
    gap: 18px;
}

.proof-hero-copy h2 {
    font-family: 'Fraunces', serif;
    font-size: clamp(2rem, 3vw, 3rem);
}

.proof-subtitle {
    font-size: 1.05rem;
    color: var(--text-soft);
}

.proof-stat-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 14px;
}

.proof-stat-card {
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(31, 42, 48, 0.08);
    display: grid;
    gap: 8px;
}

.proof-stat-card span {
    font-size: 0.84rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-soft);
}

.proof-stat-card strong {
    font-size: 1.55rem;
}

.proof-side-actions {
    display: grid;
    gap: 12px;
}

.version-card {
    padding: 22px;
    display: grid;
    gap: 14px;
}

.version-card.active {
    border: 1px solid rgba(31, 95, 82, 0.32);
}

.proof-version-grid {
    gap: 20px;
}

.proof-version-card {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 241, 231, 0.9));
}

.proof-version-card.active {
    box-shadow: 0 18px 44px rgba(31, 95, 82, 0.12);
}

.version-card-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
}

.version-qr-preview {
    width: 68px;
    height: 68px;
    border-radius: 16px;
    padding: 8px;
    background: #fff;
    border: 1px solid rgba(31, 42, 48, 0.08);
}

.version-actions-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.version-actions-grid .btn {
    width: 100%;
}

.preview-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.preview-card strong,
.summary-box strong {
    font-size: 1.5rem;
}

.form-grid,
.compact-form,
.list-stack,
.question-preview-list {
    display: grid;
    gap: 18px;
}

.type-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px;
}

.form-row {
    display: grid;
    gap: 16px;
}

.columns-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.columns-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.columns-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.columns-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

label {
    display: grid;
    gap: 8px;
    font-weight: 600;
}

label span {
    color: var(--text);
}

input,
select,
textarea {
    width: 100%;
    min-height: 48px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.9);
    padding: 13px 14px;
    color: var(--text);
    font: inherit;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: 2px solid rgba(31, 95, 82, 0.18);
    border-color: rgba(31, 95, 82, 0.42);
}

.toggle-box,
.checkbox-chip,
.radio-chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid var(--border);
}

.toggle-box input,
.checkbox-chip input,
.radio-chip input {
    width: auto;
    min-height: auto;
}

.form-card,
.inner-panel,
.nested-panel,
.correction-block {
    padding: 20px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.68);
    border: 1px solid var(--border);
}

.panel-highlight {
    border-color: rgba(31, 95, 82, 0.24);
    box-shadow: 0 16px 40px rgba(31, 95, 82, 0.1);
}

.inline-item {
    justify-content: flex-start;
}

.inline-item p {
    flex: 1;
}

.inline-label {
    min-width: 28px;
    font-weight: 700;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 820px;
}

.data-table th,
.data-table td {
    text-align: left;
    padding: 16px 14px;
    border-bottom: 1px solid rgba(31, 42, 48, 0.08);
    vertical-align: top;
}

.data-table th {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-soft);
}

.data-table tbody tr:hover {
    background: rgba(31, 95, 82, 0.03);
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.table-link,
.table-button {
    color: var(--primary);
    background: none;
    border: 0;
    padding: 0;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.table-button.danger {
    color: var(--danger);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 700;
}

.status-badge.ativo {
    background: rgba(27, 119, 85, 0.12);
    color: var(--success);
}

.status-badge.inativo {
    background: rgba(155, 61, 53, 0.12);
    color: var(--danger);
}

.status-badge.warning {
    background: rgba(181, 125, 36, 0.12);
    color: var(--warning);
}

.empty-state-cell {
    text-align: center;
    color: var(--text-soft);
    padding: 30px 14px;
}

.question-excerpt,
.question-preview-card p {
    color: var(--text-soft);
    line-height: 1.6;
}

.question-preview-list {
    gap: 14px;
}

.question-preview-card {
    padding: 20px;
}

.ai-preview-card {
    border: 1px solid rgba(31, 95, 82, 0.15);
}

.proof-question-list {
    gap: 18px;
}

.proof-question-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(249, 246, 239, 0.9));
}

.question-note {
    margin-top: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(31, 95, 82, 0.08);
    color: var(--text-soft);
}

.question-preview-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 10px;
    color: var(--text-soft);
}

.exam-sheet {
    width: min(210mm, calc(100% - 32px));
    margin: 18px auto 48px;
    padding: 16mm 15mm 18mm;
    background: white;
    border-radius: 18px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.print-toolbar {
    position: sticky;
    top: 0;
    z-index: 4;
    padding: 16px;
    background: rgba(244, 241, 234, 0.92);
    display: flex;
    gap: 12px;
    justify-content: center;
    backdrop-filter: blur(16px);
}

.exam-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px;
    gap: 18px;
    align-items: stretch;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(31, 42, 48, 0.12);
}

.exam-header-accent {
    padding: 18px;
    border-radius: 18px;
    background:
        radial-gradient(circle at top right, rgba(185, 124, 66, 0.1), transparent 28%),
        linear-gradient(135deg, rgba(31, 95, 82, 0.06), rgba(255, 248, 240, 0.98));
    border-bottom: 0;
    border: 1px solid rgba(31, 42, 48, 0.08);
}

.exam-header-content {
    display: grid;
    gap: 14px;
}

.exam-brand {
    display: grid;
    gap: 12px;
}

.exam-title {
    font-size: 1.62rem;
    font-weight: 800;
    color: var(--primary-strong);
    line-height: 1.18;
}

.exam-detail-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 14px;
}

.exam-detail-list p {
    display: grid;
    gap: 2px;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(31, 42, 48, 0.08);
}

.exam-detail-list strong {
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-soft);
}

.exam-detail-list span {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
}

.exam-qr-box {
    display: grid;
    gap: 10px;
    text-align: center;
}

.exam-qr-box-compact {
    align-content: start;
    padding: 14px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(31, 42, 48, 0.1);
}

.exam-qr-frame {
    display: grid;
    place-items: center;
    padding: 10px;
    border-radius: 14px;
    background: #fff;
    border: 1px solid rgba(31, 42, 48, 0.08);
}

.exam-qr-box img {
    width: 120px;
    height: 120px;
    object-fit: contain;
}

.exam-qr-meta {
    display: grid;
    gap: 4px;
}

.exam-qr-meta strong {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-soft);
}

.exam-qr-meta span {
    font-size: 0.95rem;
    font-weight: 700;
    word-break: break-word;
}

.exam-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.exam-summary-card {
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(31, 42, 48, 0.08);
    display: grid;
    gap: 4px;
}

.exam-summary-card strong {
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-soft);
}

.exam-summary-card span {
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--text);
}

.exam-summary-card-emphasis {
    background: linear-gradient(135deg, rgba(31, 95, 82, 0.12), rgba(255, 255, 255, 0.96));
    grid-column: span 2;
}

.exam-summary-card-emphasis span {
    font-size: 1.08rem;
}

.exam-summary-card-wide {
    grid-column: span 2;
}

.exam-instructions {
    padding: 16px 18px;
    border-radius: 16px;
    background: #f8f5ef;
    margin-bottom: 18px;
}

.exam-instructions-compact {
    margin: 12px 0 14px;
    padding: 10px 14px;
    display: inline-grid;
    max-width: 62%;
    gap: 4px;
}

.exam-instructions-compact strong {
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-soft);
}

.exam-instructions p {
    margin-top: 2px;
    font-size: 0.92rem;
    line-height: 1.45;
}

.exam-card-note {
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(31, 95, 82, 0.08);
    border: 1px solid rgba(31, 95, 82, 0.12);
    margin-bottom: 14px;
}

.exam-card-note p {
    margin-top: 4px;
    font-size: 0.9rem;
    color: var(--text-soft);
}

.printed-question {
    padding: 14px 0;
    border-bottom: 1px solid rgba(31, 42, 48, 0.1);
}

.printed-question-card {
    padding: 16px 0 18px;
}

.printed-question h2,
.question-title-row h2 {
    font-size: 1.06rem;
    line-height: 1.55;
    font-weight: 700;
}

.answer-list,
.enumere-list {
    margin: 10px 0 0;
    padding-left: 20px;
    display: grid;
    gap: 8px;
}

.answer-list li,
.enumere-list li {
    line-height: 1.55;
}

.answer-letter {
    font-weight: 700;
    margin-right: 10px;
}

.vf-block,
.enumere-grid {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.vf-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
    align-items: start;
}

.enumere-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.open-answer-space {
    min-height: 130px;
    margin-top: 12px;
    border-bottom: 1px dashed rgba(31, 42, 48, 0.4);
}

.complete-text {
    margin-top: 10px;
    line-height: 2;
}

.answer-card-grid,
.question-performance-chart {
    display: grid;
    gap: 14px;
}

.answer-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 22px;
}

.answer-card-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid rgba(31, 42, 48, 0.12);
    background: #faf7f1;
}

.bubble-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.bubble-option {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: 2px solid rgba(31, 42, 48, 0.25);
    display: grid;
    place-items: center;
    font-weight: 700;
    color: var(--text-soft);
}

.performance-row {
    display: grid;
    grid-template-columns: minmax(180px, 260px) 1fr auto;
    gap: 16px;
    align-items: center;
}

.performance-label {
    display: grid;
    gap: 4px;
}

.performance-label span {
    color: var(--text-soft);
    line-height: 1.4;
}

.performance-bar-track {
    width: 100%;
    height: 14px;
    border-radius: 999px;
    background: rgba(31, 42, 48, 0.08);
    overflow: hidden;
}

.performance-bar-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.performance-value {
    font-weight: 700;
    color: var(--text-soft);
}

#gradeDistributionChart {
    width: 100%;
    max-width: 100%;
    border-radius: 18px;
    background: #fff;
    border: 1px solid var(--border);
    padding: 16px;
}

.blank-line {
    display: inline-block;
    min-width: 100px;
    border-bottom: 1px solid rgba(31, 42, 48, 0.7);
}

.summary-box {
    height: 100%;
    justify-content: center;
}

.panel-intro {
    padding: 22px 24px;
}

.omr-sheet {
    display: grid;
    gap: 22px;
}

.omr-card {
    position: relative;
    padding: 18px 24px 24px;
    border-radius: 16px;
    background: #fff;
    display: grid;
    gap: 14px;
}

.omr-card-sheet {
    box-shadow: none;
    border: 1px solid rgba(31, 42, 48, 0.12);
}

.omr-sheet-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: start;
}

.omr-sheet-copy {
    display: grid;
    gap: 6px;
}

.omr-sheet-copy h2 {
    font-family: 'Fraunces', serif;
    font-size: 1.3rem;
}

.omr-sheet-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 18px;
    padding: 10px 0 12px;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(31, 42, 48, 0.12);
}

.omr-sheet-qr {
    width: 90px;
    min-width: 90px;
    display: grid;
    place-items: center;
    padding: 4px;
    background: #fff;
}

.omr-sheet-qr img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.omr-response-zone {
    position: relative;
    padding: 22px 34px;
}

.omr-response-zone-table {
    background: #fff;
    border-radius: 0;
}

.omr-table-grid {
    display: flex;
    justify-content: center;
    gap: 42px;
}

.omr-table {
    width: calc(50% - 21px);
    max-width: 330px;
    border-collapse: separate;
    border-spacing: 0 10px;
    table-layout: fixed;
    color: #2e2e2e;
}

.omr-table th {
    font-size: 0.94rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-align: center;
    padding-bottom: 4px;
}

.omr-col-number {
    width: 48px;
}

.omr-table-number {
    text-align: right;
    padding-right: 8px;
    color: #111;
    font-weight: 800;
    font-size: 0.98rem;
}

.omr-table-bubble {
    text-align: center;
    vertical-align: middle;
}

.omr-square-svg {
    width: 22px;
    height: 22px;
    display: inline-block;
}

.omr-side-marker {
    position: absolute;
    top: 50%;
    width: 16px;
    height: 16px;
    background: #000;
    transform: translateY(-50%);
}

.omr-side-marker-left {
    left: 0;
}

.omr-side-marker-right {
    right: 0;
}

@media (max-width: 1100px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: relative;
        height: auto;
    }

    .stats-grid,
    .preview-panel,
    .proof-correction-paths,
    .columns-4,
    .columns-5 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .auth-body,
    .app-content {
        padding: 18px;
    }

    .login-card,
    .stats-grid,
    .preview-panel,
    .proof-correction-paths,
    .columns-2,
    .columns-3,
    .columns-4,
    .columns-5,
    .exam-header,
    .exam-detail-list,
    .exam-summary-grid,
    .enumere-grid {
        grid-template-columns: 1fr;
    }

    .panel-row,
    .section-heading-inline,
    .question-title-row,
    .proof-header-grid,
    .version-card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .exam-sheet {
        width: calc(100% - 18px);
        padding: 18px;
        margin: 10px auto 32px;
    }

    .exam-instructions-compact {
        max-width: none;
    }

    .data-table {
        min-width: 680px;
    }

    .proof-hero,
    .proof-stat-strip,
    .exam-chip-grid,
    .version-actions-grid,
    .answer-card-grid,
    .performance-row {
        grid-template-columns: 1fr;
    }

    .omr-sheet-header,
    .omr-sheet-meta {
        grid-template-columns: 1fr;
    }

    .omr-table-grid {
        flex-direction: column;
        gap: 18px;
    }

    .omr-table {
        width: 100%;
        max-width: none;
    }
}