.fadb {
    --fadb-purple: #542393;
    --fadb-ink: #27183c;
    --fadb-border: #e3d8ee;
    --fadb-wash: #f7f2fc;
    box-sizing: border-box;
    width: 100%;
    max-width: 1200px;
    min-width: 0;
    margin: 0 auto;
    color: var(--fadb-ink);
    font-size: 1rem;
    line-height: 1.65;
    overflow-wrap: anywhere;
}
.fadb *, .fadb *::before, .fadb *::after { box-sizing: inherit; }
.fadb [hidden] { display: none !important; }
.fadb .fadb-hero {
    padding: clamp(.9rem, 2.5vw, 1.8rem);
    border-radius: 1.35rem;
    background: linear-gradient(135deg, #361358, #662ca2);
    color: #fff;
}
.fadb .fadb-lesson > h2, .fadb .fadb-panel h3 { color: inherit; line-height: 1.4; margin: 0 0 .65rem; }
.fadb .fadb-brand { letter-spacing: .12em; font-size: .82rem; color: #f0d9ff; font-weight: 700; }
.fadb .fadb-lesson p, .fadb footer p { margin: 0 0 .55rem; }
.fadb .fadb-lesson p:last-child, .fadb footer p:last-child { margin-bottom: 0; }
.fadb .fadb-progress { margin-bottom: 0; font-weight: 700; }
.fadb .fadb-actions { display: flex; flex-wrap: wrap; gap: .55rem; }

.fadb button {
    min-height: 44px;
    border: 1px solid var(--fadb-border);
    border-radius: .7rem;
    background: #fff;
    color: var(--fadb-purple);
    padding: .45rem .8rem;
    font: inherit;
    cursor: pointer;
}
.fadb button[aria-pressed="true"], .fadb button.fadb-primary { background: var(--fadb-purple); color: white; }
.fadb button:disabled { opacity: .6; cursor: default; }
.fadb :focus-visible { outline: 3px solid #9c58dc; outline-offset: 3px; }
.fadb .fadb-panel, .fadb footer {
    padding: clamp(.7rem, 2vw, 1.15rem);
    border: 1px solid var(--fadb-border);
    border-radius: 1rem;
    margin: 0 0 .55rem;
    background: #fff;
}
.fadb footer { background: var(--fadb-wash); }
.fadb a { color: var(--fadb-purple); text-decoration: underline; }
.fadb .fadb-words { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); gap: .6rem; margin: 0; }
.fadb .fadb-words > div { background: var(--fadb-wash); border-radius: .7rem; padding: .7rem; }
.fadb dt { font-weight: 700; }
.fadb dd { margin: 0 0 .45rem; }
.fadb .fadb-audio-status { display: block; }
.fadb details { padding: .7rem; margin-top: .65rem; border-radius: .6rem; background: var(--fadb-wash); }
.fadb summary { cursor: pointer; color: var(--fadb-purple); font-weight: 700; }
.fadb .fadb-german { white-space: pre-line; }
.fadb fieldset { min-inline-size: 0; border: 1px solid var(--fadb-border); border-radius: .65rem; padding: .55rem .8rem; margin: 0 0 .8rem; }
.fadb legend { font-weight: 700; }
.fadb .fadb-choice { display: flex; align-items: baseline; gap: .5rem; padding: .45rem 0; cursor: pointer; }
.fadb input[type="radio"], .fadb input[type="checkbox"] { appearance: auto; accent-color: var(--fadb-purple); flex: none; }
.fadb textarea { width: 100%; background: #fff; color: var(--fadb-ink); border: 1px solid var(--fadb-border); padding: .65rem; border-radius: .55rem; font: inherit; }
.fadb .fadb-feedback { margin: .5rem 0 0; padding: .5rem; border-radius: .5rem; background: #fff0e6; }
.fadb .fadb-feedback[data-correct="true"] { background: #e8f6ee; }
.fadb .fadb-result { font-weight: 700; }


body.fadb-course-page main.fa-wrap.fa-single {
    box-sizing: border-box;
    width: calc(100% - 48px);
    max-width: 1200px;
    margin-inline: auto;
    padding: 10px 0 20px;
}

.fadb .fadb-words > div { min-width: 0; }
.fadb .fadb-choice > span { min-width: 0; }
.fadb button { max-width: 100%; white-space: normal; }

@media (max-width: 800px) {
    body.fadb-course-page main.fa-wrap.fa-single {
        width: calc(100% - 20px);
        padding-top: 8px;
    }
}

/* The course supplies its own heading. */
body.fadb-course-page main.fa-single article > .fa-article-head,
body.fadb-course-page main.fa-single article > .fa-back {
    display: none;
}

.fadb .fadb-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 37%);
    align-items: center;
    gap: clamp(.65rem, 3vw, 2rem);
    overflow: hidden;
    background: radial-gradient(ellipse at 90% 18%, #8247ad, transparent 52%),
        linear-gradient(135deg, #2d164c, #532389 64%, #6d329a);
    box-shadow: 0 14px 30px #3c17562b;
}
.fadb .fadb-hero::after {
    content: '';
    aspect-ratio: 3 / 2;
    background: url('course-hero.svg') center / contain no-repeat;
}
.fadb .fadb-hero h1 {
    margin: .55rem 0 .8rem;
    color: #fff;
    font-size: clamp(1.65rem, 3.45vw, 2.85rem);
    font-weight: 800;
    line-height: 1.32;
}
.fadb .fadb-hero p { margin: 0 0 .75rem; color: #f9f0ff; }
.fadb .fadb-hero .fadb-brand { color: #ffdfaa; }
.fadb .fadb-hero .fadb-progress {
    display: inline-block;
    margin: .25rem 0 0;
    padding: .45rem .7rem;
    border: 1px solid #e9d7ff70;
    border-radius: .6rem;
    background: #2e134e65;
}
.fadb [data-tone="purple"] { --tone: #592795; --tint: #f4edff; --edge: #d8c3f0; }
.fadb [data-tone="teal"] { --tone: #166357; --tint: #edf9f5; --edge: #b8dfd5; }
.fadb [data-tone="amber"] { --tone: #82441a; --tint: #fff5e9; --edge: #f0d1ab; }
.fadb [data-tone="indigo"] { --tone: #384588; --tint: #eff2ff; --edge: #c8d0f2; }
.fadb [data-tone="rose"] { --tone: #913557; --tint: #fff0f5; --edge: #eac3d3; }
.fadb [data-tone="orchid"] { --tone: #753477; --tint: #faeffa; --edge: #e6c9e8; }

.fadb .fadb-menu {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .45rem;
    margin: .65rem 0 .75rem;
}
.fadb .fadb-menu button[data-tone] {
    display: flex;
    align-items: center;
    gap: .55rem;
    min-width: 0;
    min-height: 52px;
    padding: .45rem .6rem;
    text-align: start;
    line-height: 1.45;
    font-weight: 700;
    border-color: var(--edge);
    border-inline-start: 3px solid var(--tone);
    background: #fff;
    color: var(--tone);
}
.fadb .fadb-menu button[data-tone]:hover { background: var(--tint); }
.fadb .fadb-menu button[data-tone][aria-pressed="true"] {
    border-color: var(--tone);
    background: var(--tone);
    color: #fff;
}
.fadb .fadb-level {
    display: grid;
    flex: none;
    place-items: center;
    min-width: 2.15rem;
    min-height: 2rem;
    border-radius: .45rem;
    background: var(--tint);
    color: var(--tone);
    font-size: .85rem;
}
.fadb .fadb-topic { min-width: 0; overflow-wrap: anywhere; }
.fadb .fadb-menu-score { margin-inline-start: auto; white-space: nowrap; font-size: .8em; }
.fadb .fadb-menu-icon { display: none; }
@media (max-width: 800px) {
    .fadb .fadb-menu { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .fadb .fadb-menu button[data-tone] {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-content: center;
        gap: .2rem .35rem;
        min-height: 68px;
        padding: .35rem .45rem;
        background: var(--tint);
        font-size: .8rem;
        line-height: 1.35;
    }
    .fadb .fadb-menu button[data-tone][aria-pressed="true"] { background: var(--tone); }
    .fadb .fadb-menu-icon { display: block; font-size: 1rem; line-height: 1; }
    .fadb .fadb-level { justify-self: start; min-width: 1.65rem; min-height: 1.25rem; font-size: .69rem; }
    .fadb .fadb-topic { grid-column: 1 / -1; grid-row: 2; }
    .fadb .fadb-menu-score { grid-column: 3; grid-row: 1; }
    .fadb .fadb-menu button.fadb-menu-daily {
        grid-column: 1 / -1;
        display: flex;
        min-height: 44px;
    }
    .fadb .fadb-menu-daily .fadb-topic { white-space: nowrap; }
}

.fadb .fadb-panel[data-tone] {
    border-color: var(--edge);
    border-top: 4px solid var(--tone);
    background: var(--tint);
}
.fadb .fadb-panel[data-tone] h3 {
    margin: 0 0 .65rem;
    color: var(--tone);
}
.fadb .fadb-panel[data-tone] .fadb-words > div,
.fadb .fadb-panel[data-tone] details { background: #fff; }

@media (max-width: 620px) {
    .fadb .fadb-hero { grid-template-columns: minmax(0, 1fr); }
    .fadb .fadb-hero::after { width: min(100%, 245px); justify-self: center; }
}

body.fadb-course-page .fa-sticky-radio { display: none !important; }
body.fadb-course-page.fa-has-sticky-radio { padding-bottom: 0; }

@media (max-width: 800px) {
    .fadb .fadb-hero-copy { text-align: center; }
}

.fadb footer > button { margin-top: .75rem; }
.fadb-share-dialog {
    width: min(30rem, calc(100% - 2rem));
    max-width: none;
    padding: 1.25rem;
    border: 1px solid #e3d8ee;
    border-radius: 1rem;
    background: #fff;
    color: #27183c;
}
.fadb-share-dialog::backdrop { background: #24133680; }
.fadb-share-dialog input {
    box-sizing: border-box;
    width: 100%;
    margin-bottom: .75rem;
    padding: .6rem;
}
.fadb-share-dialog .fadb-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.fadb-share-dialog button { min-height: 44px; padding: .4rem .75rem; border-radius: .5rem; cursor: pointer; }
.fadb-share-dialog .fadb-primary { background: #542393; color: white; }