.brief-drawer {
    position: fixed;
    inset: 0;
    z-index: 200;
    pointer-events: none;
    visibility: hidden;
}

.brief-drawer.is-open {
    pointer-events: auto;
    visibility: visible;
}

.brief-drawer__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(9, 9, 11, 0.4);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.dark .brief-drawer__backdrop {
    background: rgba(0, 0, 0, 0.55);
}

.brief-drawer.is-open .brief-drawer__backdrop {
    opacity: 1;
}

.brief-drawer__stage {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    bottom: 1rem;
    left: 0;
    display: flex;
    align-items: stretch;
    justify-content: flex-end;
    pointer-events: none;
}

@media (min-width: 640px) {
    .brief-drawer__stage {
        top: 1rem;
        right: 1rem;
        bottom: 1.25rem;
    }
}

.brief-drawer__panel {
    pointer-events: auto;
    width: min(100%, 44rem);
    max-height: 100%;
    display: flex;
    flex-direction: column;
    transform: translateX(calc(100% + 0.75rem));
    opacity: 0;
    transition:
        transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.25s ease;
}

@media (min-width: 1024px) {
    .brief-drawer__panel {
        width: min(100%, 46rem);
    }
}

.brief-drawer.is-open .brief-drawer__panel {
    transform: translateX(0);
    opacity: 1;
}

.brief-drawer__panel {
    --brief-drawer-bar-py: 0.75rem;
    --brief-drawer-bar-px: 1.25rem;
    --brief-drawer-bar-inner: 2.25rem;
}

.brief-drawer__header,
.brief-drawer__footer {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    min-height: calc(var(--brief-drawer-bar-inner) + var(--brief-drawer-bar-py) * 2);
    padding: var(--brief-drawer-bar-py) var(--brief-drawer-bar-px);
}

.brief-drawer__header {
    justify-content: space-between;
    gap: 0.75rem;
    border-bottom: 1px solid rgb(228 228 231);
}

.dark .brief-drawer__header {
    border-bottom-color: rgb(63 63 70);
}

.brief-drawer__close {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.5rem;
    color: rgb(113 113 122);
    transition: color 0.2s ease, background 0.2s ease;
}

.brief-drawer__close:hover {
    color: rgb(24 24 27);
    background: rgb(244 244 245);
}

.dark .brief-drawer__close:hover {
    color: rgb(250 250 250);
    background: rgb(39 39 42);
}

.brief-drawer__content {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.brief-drawer__body {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 1.25rem 1.5rem 1rem;
}

.brief-drawer__footer {
    border-top: 1px solid rgb(228 228 231);
    background: rgb(250 250 250);
    z-index: 1;
}

.dark .brief-drawer__footer {
    border-top-color: rgb(63 63 70);
    background: rgb(30 30 33);
}

.brief-drawer__footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    width: 100%;
    min-height: var(--brief-drawer-bar-inner);
}

.brief-drawer__footer-spacer {
    flex: 1 1 auto;
    min-width: 0;
}

.brief-drawer__footer .brief-quiz__back {
    display: inline-flex;
    align-items: center;
    align-self: center;
    gap: 0.375rem;
    margin-top: 0;
    padding: 0 0.25rem;
    height: var(--brief-drawer-bar-inner);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    color: rgb(113 113 122);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.2s ease;
}

.brief-drawer__footer .brief-quiz__back:hover {
    color: rgb(24 24 27);
}

.dark .brief-drawer__footer .brief-quiz__back:hover {
    color: rgb(250 250 250);
}

.brief-drawer__footer .brief-quiz__cta {
    flex-shrink: 0;
    align-self: center;
    height: var(--brief-drawer-bar-inner);
    padding: 0 1.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.5rem;
    border: none;
    background: rgb(24 24 27);
    color: #fff;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.brief-drawer__footer .brief-quiz__cta:hover {
    opacity: 0.9;
}

.dark .brief-drawer__footer .brief-quiz__cta {
    background: rgb(228 228 231);
    color: rgb(24 24 27);
}

.brief-drawer__body .brief-form {
    gap: 1.25rem;
}

.brief-drawer__success {
    padding: 0.5rem 0 1rem;
    text-align: center;
}

.brief-panels--drawer {
    margin-top: 1rem;
}

.brief-panels--drawer .brief-quiz-launch {
    margin-top: 0;
    padding: 1.5rem 1rem;
}

.brief-panels--drawer .brief-form--classic {
    margin-top: 0;
    gap: 1.5rem;
}

.brief-panels--drawer .brief-form__card {
    padding: 1rem;
}

.brief-form--quiz .brief-form__options {
    grid-template-columns: 1fr;
}

@media (min-width: 480px) {
    .brief-form--quiz .brief-form__options {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.brief-panels--drawer .brief-mode {
    width: 100%;
    display: flex;
}

.brief-panels--drawer .brief-mode__btn {
    flex: 1 1 0;
    text-align: center;
}

.brief-fab {
    position: fixed;
    left: 50%;
    bottom: 1.5rem;
    z-index: 120;
    transform: translateX(-50%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: 9999px;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.08),
        0 12px 32px rgba(0, 0, 0, 0.14);
    transition:
        opacity 0.25s ease,
        visibility 0.25s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease,
        bottom 0.2s ease;
}

.dark .brief-fab {
    box-shadow:
        0 4px 24px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(255, 255, 255, 0.08);
}

.brief-fab.brief-fab--visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.brief-fab.brief-fab--visible:hover {
    transform: translateX(-50%) translateY(-2px);
    box-shadow:
        0 6px 12px rgba(0, 0, 0, 0.1),
        0 16px 40px rgba(0, 0, 0, 0.16);
}

.brief-drawer.is-open ~ .brief-fab,
body.brief-drawer-open .brief-fab {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

@media (max-width: 639px) {
    .brief-drawer__stage {
        top: 0.5rem;
        right: 0.5rem;
        bottom: 0.75rem;
    }

    .brief-drawer__panel {
        width: 100%;
    }

    .brief-fab {
        bottom: 1rem;
        max-width: calc(100% - 2rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    .brief-drawer__backdrop,
    .brief-drawer__panel,
    .brief-fab {
        transition: none;
    }
}