:root {
    --color-background: #ffffff;
    --color-text: #111111;
    --color-accent: #ffd400;
    --color-accent-dark: #c7a600;
    --color-border: #e5e5e5;
    --color-muted: #666666;
    --font-family-base: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    --max-width-content: 1000px;
    --radius-lg: 16px;
    --radius-md: 10px;
    --shadow-elevated: 0 18px 40px rgba(17, 17, 17, 0.12);
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-family-base);
    line-height: 1.6;
    background: var(--color-background);
    color: var(--color-text);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease, background 0.2s ease;
}

a:hover,
a:focus-visible {
    color: var(--color-accent);
}

.page-container {
    width: min(100%, var(--max-width-content));
    margin: 0 auto;
    padding: clamp(1.5rem, 3vw, 2.5rem);
}

.section-title {
    margin: 0 0 0.75rem;
    font-size: clamp(2.25rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.section-subtitle {
    margin: 0 0 2.5rem;
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--color-muted);
    max-width: 720px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-text);
    color: var(--color-background);
    box-shadow: 0 14px 30px rgba(17, 17, 17, 0.16);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 40px rgba(17, 17, 17, 0.24);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-text);
}

.btn-accent:hover,
.btn-accent:focus-visible {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(17, 17, 17, 0.2);
    color: var(--color-text);
    box-shadow: none;
}

.btn-outline:hover,
.btn-outline:focus-visible {
    background: rgba(17, 17, 17, 0.04);
    border-color: rgba(17, 17, 17, 0.4);
}

.admin-layout {
    align-items: flex-start;
    grid-template-columns: 1fr;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

.form-grid {
    display: grid;
    gap: 1rem;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-label {
    font-weight: 600;
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.unstyled-list {
    margin: 0;
    padding-left: 1rem;
}

.table-actions {
    text-align: right;
}

.admin-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.admin-links-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.admin-links-group + .admin-links-group {
    margin-top: clamp(1.5rem, 3vw, 2rem);
}

.admin-links__title {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
}

.badge-accent {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(255, 212, 0, 0.18);
    color: var(--color-text);
}

.badge-accent.badge-reviewed {
    background: rgba(15, 157, 88, 0.12);
    color: #0f9d58;
}

.badge-accent.badge-awaiting {
    background: rgba(244, 180, 0, 0.18);
    color: #a66321;
}

.badge-accent.badge-error {
    background: rgba(255, 107, 107, 0.18);
    color: #b3261e;
}

.card {
    background: var(--color-background);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 3vw, 2rem);
    border: 1px solid rgba(17, 17, 17, 0.08);
    box-shadow: var(--shadow-elevated);
}

.card + .card {
    margin-top: clamp(1.5rem, 2.5vw, 2rem);
}

.highlight {
    color: var(--color-text);
    background: linear-gradient(120deg, rgba(255, 212, 0, 0.4) 0%, rgba(255, 212, 0, 0.65) 100%);
    padding: 0.2rem 0.3rem;
    border-radius: 6px;
}

header.site-header {
    padding: clamp(1.25rem, 2.5vw, 2rem) 0;
    border-bottom: 1px solid rgba(17, 17, 17, 0.08);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
}

.site-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.4rem;
}

.site-brand__mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--color-accent);
    color: var(--color-text);
    font-weight: 700;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.site-header__toggle {
    display: none;
    border: none;
    background: transparent;
    color: inherit;
    padding: 0.4rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.site-header__toggle:focus-visible,
.site-header__toggle:hover {
    background: rgba(17, 17, 17, 0.08);
    color: var(--color-accent-dark, #0e69bb);
}

.site-header__toggle-box {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.28rem;
    width: 1.6rem;
    height: 1.25rem;
}

.site-header__toggle-bar {
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2) {
    opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.site-header__menu {
    position: relative;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-actions__form {
    margin: 0;
}

.btn-compact {
    padding: 0.625rem 1.25rem;
    font-size: 0.95rem;
    min-height: 2.5rem;
}

@media (max-width: 768px) {
    .site-header__inner {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .site-header__toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-left: auto;
    }

    .header-actions {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .site-header__menu {
        display: none;
        width: 100%;
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid rgba(17, 17, 17, 0.08);
        background: rgba(255, 255, 255, 0.95);
        box-shadow: 0 18px 36px rgba(17, 17, 17, 0.08);
        border-radius: var(--radius-md);
        padding: 1rem;
    }

    .site-header__menu.is-open {
        display: flex;
    }

    .site-header__menu .btn-compact,
    .site-header__menu .header-actions__form button {
        width: 100%;
        justify-content: center;
    }

    .site-header__menu .header-actions__form {
        width: 100%;
    }
}

main {
    padding: clamp(2.5rem, 5vw, 4rem) 0;
}

footer.site-footer {
    padding: clamp(1.5rem, 3vw, 2.5rem) 0;
    border-top: 1px solid rgba(17, 17, 17, 0.08);
    font-size: 0.95rem;
    color: var(--color-muted);
    background: rgba(17, 17, 17, 0.02);
}

.site-footer__inner {
    display: flex;
    gap: clamp(1.5rem, 3vw, 2.5rem);
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
}

.site-footer__brand {
    flex: 1 1 260px;
}

.site-footer__logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--color-text);
    text-decoration: none;
    margin-bottom: 0.4rem;
}

.site-footer__logo-mark {
    display: inline-flex;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: #111;
    font-weight: 700;
}

.site-footer__logo-text {
    font-size: 1.05rem;
}

.site-footer__description {
    margin: 0;
    max-width: 320px;
}

.site-footer__links {
    display: flex;
    gap: clamp(1rem, 2vw, 2.5rem);
    flex: 1 1 320px;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.site-footer__column {
    min-width: 180px;
}

.site-footer__heading {
    font-size: 0.95rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(17, 17, 17, 0.55);
    margin-bottom: 0.5rem;
}

.site-footer__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.35rem;
}

.site-footer__list a {
    color: inherit;
    text-decoration: none;
}

.site-footer__list a:hover,
.site-footer__list a:focus {
    text-decoration: underline;
}

.site-footer__bottom {
    padding-top: clamp(1.25rem, 2.5vw, 1.75rem);
}

.site-footer__bottom-inner {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.site-footer__disclaimer {
    margin: 0;
    font-size: 0.85rem;
    color: rgba(17, 17, 17, 0.55);
}

.grid {
    display: grid;
    gap: clamp(1.5rem, 3vw, 2rem);
}

.grid.two-column {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

@media (max-width: 1024px) {
    .grid.three-column {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .grid.three-column {
        grid-template-columns: 1fr;
    }
}

.exam-builder {
    display: grid;
    gap: clamp(1.5rem, 3vw, 2rem);
}

.exam-builder__filters {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    align-items: end;
}

.exam-builder__filters .form-field {
    margin: 0;
}

.exam-builder__filters .form-field label {
    font-weight: 600;
}

.exam-builder__questions {
    display: grid;
    gap: 1rem;
}

.exam-builder__supporting {
    margin: 0 0 0.35rem;
    font-size: 0.9rem;
    color: rgba(17, 17, 17, 0.7);
    font-style: italic;
    line-height: 1.45;
}

.exam-builder__selected {
    background: rgba(17, 17, 17, 0.04);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.exam-papers-list {
    list-style: none;
    margin: 1.5rem 0 0;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.exam-paper-card {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: #fff;
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: var(--radius-md);
}

.exam-paper-card__title {
    margin: 0 0 0.4rem;
    font-size: 1.15rem;
}

.exam-paper-card__title a {
    color: inherit;
    text-decoration: none;
}

.exam-paper-card__title a:hover,
.exam-paper-card__title a:focus-visible {
    text-decoration: underline;
}

.exam-paper-card__meta {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.exam-paper-card__description {
    margin: 0.5rem 0 0;
    font-size: 0.95rem;
    color: rgba(17, 17, 17, 0.85);
}

.exam-paper-card__actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
    margin-left: auto;
}

.empty-state {
    margin-top: 2rem;
    padding: 2rem;
    border: 1px dashed rgba(17, 17, 17, 0.15);
    border-radius: var(--radius-md);
    background: rgba(17, 17, 17, 0.02);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
}

.selected-questions {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.selected-questions__item {
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-md);
    background: #fff;
    border: 1px solid rgba(17, 17, 17, 0.08);
}

.selected-questions__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    align-items: flex-start;
}

.selected-questions__column {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    min-width: 0;
}

.selected-questions__column--meta {
    border-right: 1px solid rgba(17, 17, 17, 0.08);
    padding-right: 1rem;
}

.selected-questions__topic {
    font-weight: 600;
    font-size: 1rem;
    color: rgba(17, 17, 17, 0.95);
}

.selected-questions__subtopic {
    font-size: 0.9rem;
    color: rgba(17, 17, 17, 0.7);
}

.selected-questions__text {
    margin: 0;
    font-size: 0.9rem;
    color: rgba(17, 17, 17, 0.88);
    line-height: 1.4;
}

.selected-questions__supporting {
    margin: 0;
    font-size: 0.85rem;
    color: rgba(17, 17, 17, 0.7);
    font-style: italic;
}

.selected-questions__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    margin-top: auto;
    flex-wrap: wrap;
}

.selected-questions__marks {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: rgba(17, 17, 17, 0.08);
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(17, 17, 17, 0.8);
}

.selected-questions__remove {
    border: none;
    background: rgba(255, 83, 83, 0.12);
    color: #9b1c1c;
    border-radius: 999px;
    padding: 0.35rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.selected-questions__remove:hover,
.selected-questions__remove:focus-visible {
    background: rgba(255, 83, 83, 0.24);
    transform: translateY(-1px);
}

@media (max-width: 640px) {
    .selected-questions__column--meta {
        border-right: 0;
        padding-right: 0;
        border-bottom: 1px solid rgba(17, 17, 17, 0.08);
        padding-bottom: 0.75rem;
        margin-bottom: 0.75rem;
    }

    .selected-questions__content {
        grid-template-columns: 1fr;
    }
}

.exam-builder-question-card {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.exam-builder-question-card__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 1rem;
    width: 100%;
    align-items: flex-start;
}

.exam-builder-question-card__column {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    min-width: 0;
}

.exam-builder-question-card__column--meta {
    border-right: 1px solid rgba(17, 17, 17, 0.08);
    padding-right: 1rem;
}

.exam-builder-question-card__heading {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(17, 17, 17, 0.95);
}

.exam-builder-question-card__subheading {
    margin: 0;
    font-size: 0.9rem;
    color: rgba(17, 17, 17, 0.7);
}

.exam-builder-question-card__supporting {
    margin: 0;
    font-size: 0.85rem;
    color: rgba(17, 17, 17, 0.7);
    font-style: italic;
}

.exam-builder-question-card__text {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-muted);
    line-height: 1.45;
}

.exam-builder-question-card__meta {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(17, 17, 17, 0.8);
}

@media (max-width: 720px) {
    .exam-builder-question-card__grid {
        grid-template-columns: 1fr;
    }

    .exam-builder-question-card__column--meta {
        border-right: 0;
        padding-right: 0;
        border-bottom: 1px solid rgba(17, 17, 17, 0.08);
        padding-bottom: 0.75rem;
        margin-bottom: 0.75rem;
    }
}

.exam-builder__questions-panel {
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: var(--radius-lg);
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
    background: #fff;
    box-shadow: var(--shadow-elevated);
}

.exam-builder__questions-panel h2 {
    margin: 0 0 1rem;
}

.exam-builder__questions-list {
    min-height: 180px;
}

.feature {
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
    border-radius: var(--radius-md);
    border: 1px solid rgba(17, 17, 17, 0.08);
    background: rgba(255, 255, 255, 0.95);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature.is-selected {
    background: rgba(159, 232, 146, 0.2);
    border-color: rgba(67, 160, 71, 0.35);
}

.feature.is-selected:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(67, 160, 71, 0.18);
}

.feature:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 38px rgba(17, 17, 17, 0.12);
}

.feature__icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(255, 212, 0, 0.25);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    margin-top: 1.25rem;
}

.table-responsive table {
    min-width: 640px;
}

.table th,
.table td {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid rgba(17, 17, 17, 0.08);
    text-align: left;
}

.table th {
    background: rgba(255, 212, 0, 0.18);
    font-weight: 600;
}

.table tr:hover td {
    background: rgba(255, 212, 0, 0.08);
}

.table-row--highlight td {
    background: rgba(76, 217, 100, 0.18);
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(17, 17, 17, 0.16);
    background: var(--color-background);
    font-family: inherit;
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(255, 212, 0, 0.28);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0;
    list-style: none;
}

.tag-list li {
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    background: rgba(17, 17, 17, 0.08);
    font-weight: 600;
    font-size: 0.85rem;
}

.muted-text {
    color: var(--color-muted);
}

.scope-display {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px dashed rgba(17, 17, 17, 0.18);
    background: rgba(17, 17, 17, 0.02);
    white-space: pre-wrap;
    font-size: 0.95rem;
    line-height: 1.6;
    min-height: 6rem;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.scope-display--empty {
    color: var(--color-muted);
    font-style: italic;
}

.scope-display--loading {
    color: var(--color-muted);
}

.scope-display--error {
    color: #b3261e;
    border-color: rgba(179, 38, 30, 0.35);
    background: rgba(179, 38, 30, 0.08);
}

.text-accent {
    color: var(--color-accent);
}

.bg-accent {
    background: rgba(255, 212, 0, 0.15);
}

.auth-layout {
    display: grid;
    gap: clamp(2rem, 4vw, 4rem);
    align-items: center;
}

.auth-copy {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.auth-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.75rem;
}

.auth-benefits .bullet {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.5rem;
    border-radius: 50%;
    background: rgba(255, 212, 0, 0.2);
    font-weight: 600;
}

.auth-card {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.auth-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.auth-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.85rem 1.2rem;
    border-radius: 999px;
    font-weight: 600;
    border: 1px solid rgba(17, 17, 17, 0.12);
    background: var(--color-background);
    color: var(--color-text);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.auth-button:hover,
.auth-button:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 18px 30px rgba(17, 17, 17, 0.12);
}

.auth-button .auth-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    font-weight: 700;
    background: rgba(17, 17, 17, 0.08);
}

.auth-button.google {
    background: #ffffff;
    border-color: rgba(17, 17, 17, 0.16);
}

.auth-button.microsoft {
    background: var(--color-text);
    color: var(--color-background);
    border-color: var(--color-text);
}

.auth-button.microsoft .auth-icon {
    background: rgba(255, 255, 255, 0.12);
}

.auth-button.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.auth-alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.ai-results {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ai-results__list {
    display: grid;
    gap: 1rem;
}

.ai-result-item {
    border: 1px solid rgba(17, 17, 17, 0.12);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.85);
    display: grid;
    gap: 0.75rem;
}

.ai-result-item__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.ai-result-item__meta {
    display: flex;
    justify-content: flex-end;
}

.ai-result-item__points {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    font-size: 0.95rem;
    font-weight: 600;
}

.ai-result-item__points input {
    width: 5.5rem;
    padding: 0.35rem 0.5rem;
    border: 1px solid rgba(17, 17, 17, 0.18);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

.ai-result-item__supporting {
    background: rgba(17, 17, 17, 0.04);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    font-size: 0.95rem;
}

.ai-result-item__question,
.ai-result-item__markscheme {
    font-size: 1rem;
}

.ai-raw-response {
    border: 1px solid rgba(17, 17, 17, 0.12);
    border-radius: var(--radius-md);
    padding: 1rem;
    background: rgba(17, 17, 17, 0.04);
    max-height: 360px;
    overflow: auto;
    font-size: 0.9rem;
}

.ai-request-preview {
    margin: 1rem 0 1.5rem;
}

.ai-request-preview summary {
    cursor: pointer;
    font-weight: 600;
    color: #1f4b8f;
}

.ai-request-preview__content {
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.ai-request-preview__label {
    margin: 0 0 0.35rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: rgba(17, 17, 17, 0.65);
}

.ai-request-preview__body {
    margin: 0;
    font-size: 0.85rem;
    max-height: 220px;
}

.ai-request-preview__content .ai-raw-response {
    max-height: 220px;
}

.practice-question__header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.practice-question__content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 0.75rem;
}

.practice-question__body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.practice-question-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.25rem;
}

.practice-question__title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: #102a43;
}

.practice-question__meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.practice-question__meta .points-tag,
.practice-question__meta .difficulty-tag {
    margin-left: 0;
}

.practice-question__section-title {
    margin: 0;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(17, 17, 17, 0.55);
}

.practice-question__stem {
    font-size: 1rem;
    margin: 0;
    line-height: 1.55;
    white-space: pre-line;
}

.practice-question__markscheme {
    background: rgba(17, 17, 17, 0.03);
    border: 1px dashed rgba(17, 17, 17, 0.12);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.practice-question__markscheme--hidden {
    display: none;
}

.practice-question__supporting-text {
    margin: 0 0 0.75rem;
    font-size: 0.95rem;
    line-height: 1.55;
    color: rgba(17, 17, 17, 0.75);
    font-style: italic;
}

.practice-question__markscheme-list {
    margin: 0;
    padding-left: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.95rem;
}

.practice-question__markscheme-term {
    font-weight: 600;
    color: rgba(17, 17, 17, 0.8);
}

.practice-question__markscheme-def {
    margin: 0.25rem 0 0;
    color: rgba(17, 17, 17, 0.7);
    line-height: 1.4;
}

.practice-question__markscheme summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    color: rgba(17, 17, 17, 0.8);
}

.practice-question__markscheme[open] summary {
    color: #0f3a68;
}

.practice-question__markscheme-body {
    font-size: 0.95rem;
    line-height: 1.55;
    color: rgba(17, 17, 17, 0.78);
}

.practice-question__lock-message {
    display: none;
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
    font-style: italic;
    color: rgba(17, 17, 17, 0.6);
}

.practice-question--locked .practice-question__lock-message {
    display: block;
}

.practice-question--locked .practice-response-form,
.practice-question--locked .practice-question__markscheme {
    opacity: 0.45;
    pointer-events: none;
}

.practice-question--locked .practice-response-form__status {
    opacity: 0.7;
}

.practice-session-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.practice-session-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.practice-session-card__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.practice-session-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
}

.practice-session-meta__item {
    background: rgba(17, 17, 17, 0.03);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    display: grid;
    gap: 0.35rem;
}

.practice-session-meta__item dt {
    margin: 0;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(17, 17, 17, 0.55);
}

.practice-session-meta__item dd {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(17, 17, 17, 0.85);
}

.practice-session-note {
    margin: 0;
    font-size: 0.95rem;
    color: rgba(17, 17, 17, 0.65);
}

.practice-distribution {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.5rem;
}

.practice-distribution__item {
    min-width: 120px;
    flex: 1 1 120px;
    padding: 0.75rem 0.9rem;
    border-radius: var(--radius-md);
    background: rgba(14, 105, 187, 0.08);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.practice-distribution__label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(17, 17, 17, 0.55);
}

.practice-distribution__value {
    font-size: 1.4rem;
    font-weight: 700;
    color: #0f3a68;
}

.practice-session-warning {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(179, 38, 30, 0.85);
}

.practice-questions-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.practice-summary-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
}

.practice-summary-card__header {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    align-items: center;
}

.practice-summary-card__header h2 {
    margin: 0;
    font-size: clamp(1.35rem, 2vw, 1.65rem);
}

.practice-summary-card__score {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: #0f3a68;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    gap: 0.5rem;
}

.practice-summary-card__score-value {
    font-size: 1em;
}

.practice-summary-card__score-possible {
    font-size: 1em;
    color: rgba(17, 17, 17, 0.6);
}

.practice-summary-card__score-caption {
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.practice-summary-card__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.85rem;
}

.practice-summary-card__feedback {
    font-size: 0.95rem;
    line-height: 1.5;
    color: rgba(17, 17, 17, 0.75);
    background: rgba(17, 17, 17, 0.04);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: left;
    white-space: pre-line;
}

.practice-summary-card__feedback--loading {
    color: rgba(17, 17, 17, 0.65);
    font-style: italic;
}

.practice-summary-card__feedback--error {
    color: #b3261e;
    background: rgba(255, 107, 107, 0.12);
}

.progress-intro {
    text-align: center;
    gap: clamp(1rem, 2vw, 1.5rem);
}

.progress-legend {
    margin-top: 1.5rem;
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 1.5rem;
}

.progress-legend__item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.progress-legend__swatch {
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 0.4rem;
    display: inline-block;
    box-shadow: 0 2px 6px rgba(17, 17, 17, 0.15);
}

.progress-legend__swatch--high {
    background: #2ecc71;
}

.progress-legend__swatch--medium {
    background: #f39c12;
}

.progress-legend__swatch--low {
    background: #e74c3c;
}

.progress-section {
    margin-top: clamp(2rem, 5vw, 3rem);
}

.progress-section__header {
    margin-bottom: clamp(1rem, 3vw, 1.5rem);
}

.progress-section__header h2 {
    margin: 0;
}

.progress-section__header p {
    margin: 0.35rem 0 0;
    color: var(--color-muted);
}

.progress-topic {
    margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.progress-topic__header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem 1.25rem;
    margin-bottom: 1rem;
}

.progress-topic__header h3 {
    margin: 0;
}

.progress-topic__header .muted-text {
    margin: 0;
}

.progress-subtopic {
    margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.progress-subtopic__header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.progress-subtopic__grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.progress-tile {
    --tile-size: clamp(2.25rem, 6vw, 2.75rem);
    width: var(--tile-size);
    height: var(--tile-size);
    border-radius: var(--radius-sm);
    border: none;
    padding: 0;
    cursor: pointer;
    position: relative;
    background: rgba(17, 17, 17, 0.12);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.progress-tile:hover,
.progress-tile:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(17, 17, 17, 0.18);
}

.progress-tile:focus-visible {
    outline: 2px solid rgba(17, 17, 17, 0.65);
    outline-offset: 3px;
}

.progress-tile::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 50%;
    bottom: calc(100% + 0.85rem);
    transform: translate(-50%, 0.25rem);
    background: rgba(17, 17, 17, 0.9);
    color: #ffffff;
    font-size: 0.78rem;
    line-height: 1.4;
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    width: min(260px, 70vw);
    box-shadow: 0 16px 32px rgba(17, 17, 17, 0.25);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
    white-space: pre-line;
    z-index: 20;
}

.progress-tile::before {
    content: '';
    position: absolute;
    left: 50%;
    bottom: calc(100% + 0.35rem);
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 0.45rem solid transparent;
    border-right: 0.45rem solid transparent;
    border-top: 0.45rem solid rgba(17, 17, 17, 0.9);
    opacity: 0;
    transition: opacity 0.15s ease;
    z-index: 19;
}

.progress-tile:hover::after,
.progress-tile:focus-visible::after {
    opacity: 1;
    transform: translate(-50%, -0.25rem);
}

.progress-tile:hover::before,
.progress-tile:focus-visible::before {
    opacity: 1;
}

.progress-tile--high {
    background: #2ecc71;
}

.progress-tile--medium {
    background: #f39c12;
}

.progress-tile--low {
    background: #e74c3c;
}

.progress-tile--neutral {
    background: rgba(17, 17, 17, 0.16);
}

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

@media (max-width: 640px) {
    .progress-subtopic__header {
        text-align: left;
    }

    .progress-legend {
        justify-content: center;
    }
}

.legal-page {
    max-width: 860px;
    margin: 0 auto;
    display: grid;
    gap: clamp(1.5rem, 3vw, 2rem);
}

.legal-page__header h1 {
    margin-bottom: 0.25rem;
}

.legal-section {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: var(--radius-md);
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
    box-shadow: 0 12px 28px rgba(17, 17, 17, 0.05);
}

.legal-section h2 {
    margin-top: 0;
}

.legal-section ul {
    list-style: disc;
    margin-left: 1.25rem;
    display: grid;
    gap: 0.45rem;
}

.legal-section table {
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .site-footer__links {
        justify-content: flex-start;
    }

    .site-footer__bottom-inner {
        gap: 0.5rem;
    }

    .legal-page {
        gap: 1.25rem;
    }
}

.practice-questions-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.practice-response-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 0.5rem;
}

.practice-response-form__field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.practice-response-form__label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: rgba(17, 17, 17, 0.6);
}

.practice-response-form__textarea {
    width: 100%;
    min-height: 8rem;
    padding: 0.8rem;
    border: 1px solid rgba(17, 17, 17, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    line-height: 1.5;
    resize: vertical;
}

.practice-response-form__textarea--locked {
    background: rgba(17, 17, 17, 0.08);
    color: rgba(17, 17, 17, 0.7);
    cursor: not-allowed;
}

.practice-response-form__marks {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.practice-response-form__marks-input {
    width: 6.5rem;
    max-width: 100%;
    padding: 0.45rem 0.65rem;
    border: 1px solid rgba(17, 17, 17, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
}

.practice-response-form__marks-input--readonly,
.practice-response-form__marks-input[readonly] {
    background: rgba(17, 17, 17, 0.08);
    color: rgba(17, 17, 17, 0.6);
    cursor: not-allowed;
}

.practice-response-form__actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.practice-response-form__submit {
    min-width: 180px;
}

.practice-response-form__next {
    min-width: 160px;
}

.practice-response-form__status {
    font-size: 0.9rem;
    font-weight: 600;
}

.practice-response-form__status--success {
    color: #0f7a3d;
}

.practice-response-form__status--error {
    color: #b3261e;
}

.points-input {
    width: 5rem;
    padding: 0.3rem 0.5rem;
    border: 1px solid rgba(17, 17, 17, 0.18);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

.markscheme-cell {
    max-height: 12rem;
    overflow-y: auto;
    padding-right: 0.25rem;
    font-size: 0.95rem;
    line-height: 1.4;
}

.question-cell,
.supporting-cell {
    max-height: 12rem;
    overflow-y: auto;
    padding-right: 0.25rem;
    font-size: 0.95rem;
    line-height: 1.5;
    white-space: pre-line;
}

.supporting-cell {
    color: #3f3f3f;
}

.question-review-note {
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.question-review-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
}

.question-review-filters .form-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 220px;
}

.question-review-filters select {
    min-width: 220px;
}

.question-review-filters__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.question-review-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.question-review-card {
    border: 1px solid rgba(17, 17, 17, 0.12);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    background: #fff;
    box-shadow: 0 8px 16px rgba(17, 17, 17, 0.06);
}

.question-review-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.question-review-card__header .checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
}

.question-review-card__tags {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.question-review-card__points {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(14, 105, 187, 0.12);
    color: #0f3a68;
}

.question-review-card__meta {
    margin-top: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.95rem;
    color: rgba(17, 17, 17, 0.72);
}

.question-review-card__id {
    font-weight: 700;
    color: rgba(17, 17, 17, 0.8);
}

.question-review-card__section {
    margin-top: 1.35rem;
}

.question-review-card__heading {
    margin: 0 0 0.5rem;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(17, 17, 17, 0.6);
}

.question-review-card__textarea {
    width: 100%;
    border: 1px solid rgba(17, 17, 17, 0.18);
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    line-height: 1.55;
    font-family: inherit;
    color: rgba(17, 17, 17, 0.92);
    background: #fff;
    resize: vertical;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.question-review-card__textarea:focus {
    outline: none;
    border-color: rgba(14, 105, 187, 0.55);
    box-shadow: 0 0 0 3px rgba(14, 105, 187, 0.18);
}

.question-review-card__textarea--supporting {
    min-height: 130px;
}

.question-review-card__textarea--question {
    min-height: 190px;
}

.question-review-card__textarea--markscheme {
    min-height: 220px;
}

.question-review-card__content {
    background: rgba(17, 17, 17, 0.035);
    border-radius: var(--radius-md);
    padding: 0.9rem 1rem;
    font-size: 0.95rem;
    line-height: 1.55;
    white-space: pre-line;
}

.question-review-card__content .muted-text {
    color: rgba(17, 17, 17, 0.5);
}

.question-review-actions {
    margin-top: 1.75rem;
}

@media (max-width: 720px) {
    .question-review-card {
        padding: 1rem 1.1rem;
    }

    .question-review-card__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .question-review-card__tags {
        width: 100%;
        justify-content: space-between;
    }

    .practice-session-card__header,
    .practice-questions-card__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .question-review-filters {
        flex-direction: column;
        align-items: stretch;
    }

    .question-review-filters .form-field,
    .question-review-filters select {
        width: 100%;
        min-width: 0;
    }

    .question-review-filters__actions {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .practice-session-card__actions {
        width: 100%;
        justify-content: flex-start;
    }

    .practice-response-form__actions {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .practice-response-form__submit {
        width: 100%;
        justify-content: center;
    }

    .practice-summary-card__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .practice-summary-card__actions .btn {
        width: 100%;
        justify-content: center;
    }
}

.question-review-table .keep-column {
    width: 6.5rem;
    vertical-align: top;
}

.question-review-table .keep-column .checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.question-review-table .keep-column .checkbox span {
    font-weight: 600;
}

.question-review-table tbody tr td {
    vertical-align: top;
}

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

.difficulty-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 84px;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(17, 17, 17, 0.08);
}

.points-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #0f3a68;
    background: rgba(14, 105, 187, 0.12);
}

.difficulty-easy {
    background: rgba(64, 207, 138, 0.18);
    color: #166f42;
}

.difficulty-medium {
    background: rgba(255, 212, 0, 0.2);
    color: #5f4700;
}

.difficulty-hard {
    background: rgba(255, 107, 107, 0.18);
    color: #891d1d;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(17, 17, 17, 0.06);
    color: var(--color-text);
}

.status-badge--new {
    background: rgba(76, 217, 100, 0.2);
    color: #166534;
    border: 1px solid rgba(76, 217, 100, 0.35);
}

.status-badge--existing {
    background: rgba(17, 17, 17, 0.08);
    color: var(--color-muted);
    border: 1px solid rgba(17, 17, 17, 0.12);
}

.auth-alert.success {
    background: rgba(76, 217, 100, 0.18);
    color: #166534;
}

.auth-alert.error {
    background: rgba(255, 83, 83, 0.18);
    color: #991b1b;
}

.auth-note {
    font-size: 0.85rem;
    color: var(--color-muted);
}

.auth-note code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    background: rgba(17, 17, 17, 0.06);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
}

.page-container.grid.admin-layout section{
    max-width: 100%;;
}

@media (max-width: 900px) {
    .auth-layout {
        grid-template-columns: 1fr;
    }

    .auth-card {
        order: -1;
    }
}