/* =========================
   OEFENINGEN (gedeeld voor alle oefeningen)
   Gebruikt de kleurvariabelen uit style.css,
   met vaste waarden als terugval.
   Plaats dit bestand naast style.css.
========================= */

/* =========================
   OEFENING-PAGINA
   (gebruikt de kleurvariabelen uit style.css,
    met vaste waarden als terugval)
========================= */

.ox-hero {
    background:
        radial-gradient(circle at top right, var(--green-100, #e3f1e6), transparent 45%),
        #ffffff;
    border-bottom: 1px solid var(--green-200, #bbd9c3);
    padding: 44px 0 36px;
}

.ox-back {
    color: var(--green-700, #166534);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.ox-back:hover {
    text-decoration: underline;
}

.ox-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin: 20px 0 12px;
}

.ox-number {
    background: var(--green-700, #166534);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    padding: 3px 11px;
    border-radius: 8px;
}

.ox-tag {
    background: var(--green-100, #e3f1e6);
    color: var(--green-900, #14532d);
    font-size: 13px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
}

.ox-tag.is-level {
    background: var(--orange-600, #c2410c);
    color: #fff;
}

.ox-hero h1 {
    max-width: 760px;
    font-size: clamp(30px, 4.5vw, 46px);
    line-height: 1.12;
    letter-spacing: -0.03em;
    color: var(--green-900, #14532d);
    margin-bottom: 14px;
}

.ox-intro {
    max-width: 640px;
    color: var(--muted, #55655a);
    font-size: 17px;
    margin-bottom: 22px;
}

.ox-info {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 28px;
    font-size: 14px;
    color: var(--muted, #55655a);
}

.ox-info strong {
    color: var(--ink, #16241b);
}


/* =========================
   STAP-VOOR-STAP
========================= */

.ox-stage {
    width: min(820px, calc(100% - 40px));
    margin: 0 auto;
    padding: 40px 0 80px;
    scroll-margin-top: 90px;
}

/* Voortgang: één segment per scherm, aanklikbaar */

.ox-progress {
    display: none;
    margin-bottom: 22px;
}

.js .ox-progress {
    display: block;
}

.ox-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 600;
    color: var(--green-900, #14532d);
    margin-bottom: 6px;
}

.ox-segments {
    display: flex;
    gap: 6px;
}

.ox-segment {
    flex: 1;
    height: 22px;
    border: 0;
    background: transparent;
    cursor: pointer;
    position: relative;
}

.ox-segment::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 7px;
    height: 8px;
    border-radius: 4px;
    background: var(--green-100, #e3f1e6);
    transition: background 0.2s ease;
}

.ox-segment.is-done::after {
    background: var(--green-600, #15803d);
}

.ox-segment.is-current::after {
    background: var(--orange-500, #ea580c);
}

/* Kaart met de inhoud van één stap */

.ox-step {
    background: #fff;
    border: 2px solid var(--green-200, #bbd9c3);
    border-top: 8px solid var(--green-600, #15803d);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
}

.js .ox-step {
    margin-bottom: 0;
}

.ox-step[hidden] {
    display: none;
}

.ox-step.is-entering {
    animation: oxIn 0.25s ease;
}

@keyframes oxIn {
    from { opacity: 0; transform: translateX(14px); }
    to   { opacity: 1; transform: none; }
}

.ox-step-head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.ox-step-num {
    flex: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--green-700, #166534);
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 22px;
    font-weight: 700;
}

.ox-step h2 {
    font-size: 26px;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--green-900, #14532d);
    outline: none;
}

.ox-step p {
    max-width: 62ch;
    margin-bottom: 14px;
}

.ox-step p:last-child {
    margin-bottom: 0;
}

.ox-goal-list {
    list-style: none;
    margin: 6px 0 22px;
}

.ox-goal-list li {
    padding: 6px 0 6px 30px;
    position: relative;
}

.ox-goal-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--green-100, #e3f1e6);
    color: var(--green-700, #166534);
    font-size: 12px;
    font-weight: 700;
    display: grid;
    place-items: center;
}

/* Bestand */

.ox-file {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    background: var(--orange-50, #fff7ed);
    border: 2px solid #f6cfa8;
    border-left: 8px solid var(--orange-500, #ea580c);
    border-radius: 12px;
    padding: 18px 20px;
}

.ox-file-icon {
    font-size: 30px;
}

.ox-file-text {
    flex: 1;
    min-width: 200px;
}

.ox-file-text span {
    display: block;
    font-size: 13px;
    color: var(--muted, #55655a);
}

.ox-file-text strong {
    word-break: break-all;
}

.ox-download {
    background: var(--orange-600, #c2410c);
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 18px;
    border-radius: 8px;
}

.ox-download:hover {
    background: var(--orange-700, #9a3412);
}

/* Afbeelding bij een stap */

.ox-image {
    margin: 18px 0;
}

.ox-image img {
    display: block;
    max-width: 100%;
    border: 2px solid var(--green-200, #bbd9c3);
    border-radius: 10px;
}

/* Hint en tip */

.ox-hint {
    margin-top: 20px;
    background: var(--orange-50, #fff7ed);
    border: 2px solid #f6cfa8;
    border-radius: 12px;
}

.ox-hint summary {
    cursor: pointer;
    padding: 12px 16px;
    font-weight: 700;
    color: var(--orange-700, #9a3412);
}

.ox-hint > div {
    padding: 0 16px 14px;
}

.ox-tip {
    margin-top: 20px;
    background: var(--green-50, #f1f8f2);
    border: 2px solid var(--green-100, #e3f1e6);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 15px;
}

/* Knoppen onder de kaart */

.ox-nav {
    display: none;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
}

.js .ox-nav {
    display: flex;
}

.ox-btn {
    font: inherit;
    font-weight: 600;
    font-size: 16px;
    padding: 13px 26px;
    border-radius: 10px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: background 0.2s ease;
}

.ox-prev {
    background: #fff;
    color: var(--green-700, #166534);
    border-color: var(--green-200, #bbd9c3);
}

.ox-prev:hover {
    background: var(--green-50, #f1f8f2);
}

.ox-next {
    background: var(--orange-600, #c2410c);
    color: #fff;
}

.ox-next:hover {
    background: var(--orange-700, #9a3412);
}

.ox-nav [hidden] {
    visibility: hidden;
    display: block;
}

.ox-nav .ox-next[hidden] {
    display: none;
}

/* Afsluiter */

.ox-done {
    border-top-color: var(--orange-500, #ea580c);
}

.ox-done .ox-step-num {
    background: var(--orange-600, #c2410c);
}

.ox-done h2 {
    color: var(--orange-700, #9a3412);
}

.ox-back-btn {
    display: inline-block;
    margin-top: 18px;
    background: var(--green-700, #166534);
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    padding: 12px 22px;
    border-radius: 10px;
}

.ox-back-btn:hover {
    background: var(--green-900, #14532d);
}

@media (max-width: 650px) {
    .ox-step {
        padding: 22px 18px;
    }

    .ox-step h2 {
        font-size: 22px;
    }

    .ox-btn {
        padding: 12px 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ox-step.is-entering {
        animation: none;
    }
}

/* Kleine toelichting onder een blok */

.ox-note {
    margin-top: 14px;
    color: var(--muted, #55655a);
    font-size: 15px;
}