.hidden {
    display: none;
}

.page-header {
    background: var(--color-dark);
    padding: 3rem 1.5rem 2.5rem;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 50% 70% at 15% 50%, rgba(255, 30, 149, 0.14) 0%, transparent 60%),
        radial-gradient(ellipse 40% 60% at 85% 50%, rgba(3, 145, 243, 0.1) 0%, transparent 55%);
    pointer-events: none;
}

.partial-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.partial-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.partial-right {
    position: fixed;
    top: 50%;
    right: 1.5rem;
    transform: translateY(-48%);
    width: 380px;
    max-width: calc(100vw - 3rem);
    max-height: 75vh;
    background: var(--color-dark);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    overflow-y: auto;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.partial-right.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(-50%);
}

.partial-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem 0.75rem;
    position: sticky;
    top: 0;
    background: var(--color-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    z-index: 1;
}

.partial-title {
    font-family: "Bricolage Grotesque", sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
    letter-spacing: 0.03em;
}

.partial-close-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.45);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

.partial-close-btn:hover {
    color: white;
    background: rgba(255, 255, 255, 0.08);
}

.question-number {
    display: block;
    font-family: "Bricolage Grotesque", sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.75);
}

.question-preview {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.35);
}

.partial-right h3 {
    font-family: "Bricolage Grotesque", sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.7);
    padding: 0.9rem 1.25rem;
    margin: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: background var(--transition), color var(--transition);
}

.partial-right h3:hover {
    background: rgba(255, 255, 255, 0.04);
    color: white;
}

.partial-right a {
    display: block;
    padding: 0.55rem 1.25rem;
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    font-size: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    line-height: 1.45;
    transition: color var(--transition), background var(--transition);
}

.partial-right a:hover {
    color: #ff6db8;
    background: rgba(255, 30, 149, 0.06);
}

.view-switch {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 1rem 0;
}


.dark-head {
    background: var(--color-dark);
    position: relative;
}

.dark-head::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-logo);
}

.qa-alt-label {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-bg);
    border: 1.5px solid #D8E0EA;
    font-family: "Bricolage Grotesque", sans-serif;
    font-weight: 700;
    font-size: 0.82rem;
    color: var(--color-muted);
    transition: all var(--transition);
    margin-top: 0.1rem;
}

.mainBtns {
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-size: 0.88rem;
}

.inputForm {
    border-radius: var(--radius-sm);
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--color-border);
    font-size: 0.88rem;
}

.exam-alt {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all var(--transition);
    user-select: none;
    position: relative;
}

.exam-alt:hover {
    border-color: rgba(255, 30, 149, 0.3);
    background: rgba(255, 30, 149, 0.025);
}

.exam-alt:has(input:checked) {
    border-color: rgba(255, 30, 149, 0.5);
    background: rgba(255, 30, 149, 0.06);
    box-shadow: 0 0 0 3px rgba(255, 30, 149, 0.08);
}

.exam-alt input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.exam-alt:has(input:checked) .qa-alt-label {
    background: var(--color-pink);
    border-color: var(--color-pink);
    color: white;
}

.alternativeText {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--color-text);
    padding-top: 0.2rem;
}

.list-mode {
    display: flex !important;
    flex-direction: column;
    justify-content: center !important;
}

.surface-card {
    background: var(--color-surface);
    border: 1.5px solid #B8C4CE;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.09);
}

.btn-gradient {
    background: var(--gradient-logo);
    color: white;
    font-weight: 600;
    font-size: 0.88rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-gradient:hover {
    filter: brightness(1.08);
    box-shadow: 0 4px 16px rgba(255, 30, 149, 0.35);
}

.solution-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1rem;
    padding: 0.45rem 1rem;
    background: transparent;
    color: var(--color-pink-dark);
    font-size: 0.82rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 30, 149, 0.3);
    cursor: pointer;
    transition: all var(--transition);
}

.solution-btn:hover {
    background: rgba(255, 30, 149, 0.07);
    border-color: rgba(255, 30, 149, 0.55);
}

.youtube-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.youtube-modal-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.youtube-modal-card {
    background: var(--color-dark);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    width: 800px;
    max-width: 92vw;
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.youtube-modal-backdrop.open .youtube-modal-card {
    transform: translateY(0);
}

.youtube-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.youtube-modal-title {
    font-family: "Bricolage Grotesque", sans-serif;
    font-size: 0.88rem;
    font-weight: 700;
    color: white;
}

.youtube-modal-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.45);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

.youtube-modal-close:hover {
    color: white;
    background: rgba(255, 255, 255, 0.08);
}

.youtube-modal-body {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.youtube-modal-body iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.search-field select:focus,
.search-field input:focus,
.qa-field input:focus,
.qa-field select:focus,
.qa-field textarea:focus,
.qa-alt-row .alternativeText:focus,
#alternativesContainer .alt-text:focus {
    border-color: rgba(255, 30, 149, 0.45);
    box-shadow: 0 0 0 3px rgba(255, 30, 149, 0.1);
}