/* UKPAI Learning Course — shared styles across landing + stages */

/* Layout */
.course-back {
    display: inline-block;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--color-muted, #666);
}
.course-back:hover { color: var(--color-primary, #2c5530); }

.course-landing-grid {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
}
@media (max-width: 760px) {
    .course-landing-grid { grid-template-columns: 1fr; }
}

.course-about h2 { margin-top: 0; }
.course-about h3 { margin-top: 1.5rem; }

.course-toc {
    background: var(--color-panel, #f6f4ee);
    padding: 1.5rem;
    border-radius: 0.5rem;
}
.course-toc-list {
    list-style: none;
    padding-left: 0;
    margin: 0 0 1.5rem;
    counter-reset: stages;
}
.course-toc-list li { margin-bottom: 0.5rem; }
.course-toc-list a {
    display: flex;
    gap: 0.75rem;
    align-items: baseline;
    padding: 0.6rem 0.8rem;
    border-radius: 0.35rem;
    text-decoration: none;
    color: inherit;
    background: #fff;
}
.course-toc-list a:hover { background: var(--color-primary, #2c5530); color: #fff; }
.course-toc-number {
    font-weight: 700;
    min-width: 1.5rem;
}
.course-start-btn { width: 100%; }

/* Progress bar */
.course-progress {
    margin: 1.5rem 0;
}
.course-progress-label {
    font-size: 0.85rem;
    color: var(--color-muted, #666);
    margin-bottom: 0.35rem;
}
.course-progress-track {
    background: #e7e2d4;
    border-radius: 999px;
    height: 6px;
    overflow: hidden;
}
.course-progress-fill {
    background: var(--color-primary, #2c5530);
    height: 100%;
    transition: width 300ms ease;
}

/* Audio controls */
.course-audio-controls {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin: 1rem 0 1.5rem;
}
.course-audio-mute,
.course-audio-fallback {
    background: #fff;
    border: 1px solid var(--color-primary, #2c5530);
    color: var(--color-primary, #2c5530);
    padding: 0.5rem 1rem;
    border-radius: 999px;
    cursor: pointer;
    font: inherit;
}
.course-audio-mute[data-state="muted"] {
    background: var(--color-primary, #2c5530);
    color: #fff;
}

/* Stage layout */
.course-stage {
    max-width: 44rem;
    margin: 0 auto;
}
.course-stage-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}
.course-stage-kicker {
    color: var(--color-muted, #666);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.course-story {
    font-size: 1.08rem;
    line-height: 1.7;
}
.course-story p { margin-bottom: 1rem; }

.course-requirements {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--color-panel, #f6f4ee);
    border-left: 4px solid var(--color-primary, #2c5530);
    border-radius: 0.5rem;
}
.course-requirements h3 { margin-top: 0; }
.course-requirements ul { margin: 0; padding-left: 1.25rem; }
.course-requirements li { margin-bottom: 0.6rem; }

.course-hmrc-quote {
    margin: 1rem 0;
    padding: 0.75rem 1rem;
    background: #fff;
    border-left: 3px solid var(--color-muted, #aaa);
    font-style: italic;
}

.course-sources {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e0ddd3;
    font-size: 0.92rem;
}
.course-sources h3 { margin-top: 0; }
.course-sources ul { padding-left: 1.25rem; }

/* Disclaimer */
.course-disclaimer {
    margin-top: 2rem;
    padding: 1rem 1.25rem;
    background: #fffbe6;
    border: 1px solid #eadc95;
    border-radius: 0.4rem;
    font-size: 0.92rem;
}
.course-disclaimer-verified {
    color: var(--color-muted, #666);
    font-size: 0.82rem;
    margin-top: 0.5rem;
    margin-bottom: 0;
}

/* Stage nav */
.course-stage-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin: 2.5rem 0;
}

/* Glossary terms + popover */
.glossary-term {
    text-decoration: underline dotted;
    cursor: help;
    color: var(--color-primary, #2c5530);
}
.glossary-popover {
    position: absolute;
    max-width: 320px;
    background: #fff;
    border: 1px solid #d4cfbf;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 1rem 1.25rem;
    border-radius: 0.4rem;
    z-index: 1000;
}
.glossary-popover-close {
    position: absolute;
    top: 6px;
    right: 8px;
    background: none;
    border: none;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    color: var(--color-muted, #666);
}
.glossary-popover-label { margin: 0 0 0.35rem; font-size: 1rem; }
.glossary-popover-definition { margin: 0 0 0.5rem; font-size: 0.92rem; }
.glossary-popover-source {
    font-size: 0.85rem;
    text-decoration: underline;
}

/* Quiz */
.quiz-list { margin: 2rem 0; }
.quiz-question {
    padding: 1.25rem;
    margin-bottom: 1.25rem;
    background: #fff;
    border: 1px solid #e0ddd3;
    border-radius: 0.4rem;
}
.quiz-question-prompt {
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 0.8rem;
}
.quiz-options {
    list-style: none;
    padding-left: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin: 0 0 0.75rem;
}
.quiz-option {
    text-align: left;
    padding: 0.65rem 0.9rem;
    border: 1px solid #d4cfbf;
    background: #fff;
    border-radius: 0.35rem;
    cursor: pointer;
    font: inherit;
}
.quiz-option:hover:not(:disabled) { background: #f6f4ee; }
.quiz-option:disabled { cursor: default; }
.quiz-option.is-correct { background: #d9efd9; border-color: #67a367; }
.quiz-option.is-incorrect { background: #f5d9d9; border-color: #c77676; }
.quiz-feedback {
    padding: 0.6rem 0.8rem;
    border-radius: 0.3rem;
    font-size: 0.92rem;
}
.quiz-feedback.is-correct { background: #d9efd9; }
.quiz-feedback.is-incorrect { background: #f5d9d9; }