:root {
    /* Bucknell-inspired palette */
    --bucknell-blue: #003865;
    --bucknell-orange: #e87722;

    --page-bg: #f5f6f7;
    --card-bg: #ffffff;
    --text: #1f2933;
    --muted: #68737d;
    --border: #d8dde2;
    --success: #2f6b4f;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: var(--page-bg);
}

.page {
    width: min(1000px, calc(100% - 32px));
    margin: 32px auto;
}

.header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 16px;
    border-bottom: 4px solid var(--bucknell-orange);
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--bucknell-orange);
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

h1 {
    margin: 0;
    color: var(--bucknell-blue);
}

.level-label {
    color: var(--muted);
    font-weight: bold;
}

.summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 20px 0;
}

.summary div {
    padding: 14px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.summary strong,
.summary span {
    display: block;
}

.summary strong {
    color: var(--bucknell-blue);
    font-size: 1.5rem;
}

.summary span {
    margin-top: 3px;
    color: var(--muted);
    font-size: 0.85rem;
}

.levels {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.levels a {
    padding: 8px 14px;
    color: var(--bucknell-blue);
    background: white;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
}

.levels a.active {
    color: white;
    background: var(--bucknell-blue);
    border-color: var(--bucknell-blue);
}

.topic-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.topic {
    min-height: 135px;
    padding: 14px;
    color: var(--text);
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-top: 4px solid var(--border);
    border-radius: 8px;
    text-decoration: none;
}

.topic:hover {
    border-color: var(--bucknell-blue);
}

.topic.passed {
    border-top-color: var(--success);
}

.topic.progress {
    border-top-color: var(--bucknell-orange);
}

.topic.available {
    border-top-color: var(--bucknell-blue);
}

.topic-top,
.topic-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.status-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--bucknell-blue);
}

.passed .status-dot {
    background: var(--success);
}

.progress .status-dot {
    background: var(--bucknell-orange);
}

.topic-tags {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.tag,
.required {
    padding: 3px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: bold;
}

.tag {
    color: white;
    background: var(--bucknell-blue);
}

.required {
    color: var(--bucknell-blue);
    background: #fff1e6;
    text-transform: uppercase;
}

.topic h2 {
    margin: 18px 0 4px;
    color: var(--bucknell-blue);
    font-size: 1rem;
}

.topic p {
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
}

.topic-bottom {
    margin-top: 18px;
    color: var(--muted);
    font-size: 0.8rem;
}

.topic-bottom strong {
    color: var(--text);
}

@media (max-width: 760px) {
    .topic-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 520px) {
    .summary,
    .topic-grid {
        grid-template-columns: 1fr;
    }

    .levels {
        flex-wrap: wrap;
    }
}


.topic.locked,
.topic.unavailable {
    opacity: 0.55;
    cursor: default;
}

.topic.locked {
    border-top-color: var(--muted);
}

.topic.unavailable {
    border-top-color: var(--border);
}

.locked .status-dot,
.unavailable .status-dot {
    background: var(--muted);
}


.account {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 0.85rem;
}

.login-button {
    padding: 7px 12px;
    color: white;
    background: var(--bucknell-blue);
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
}

.logout-link {
    color: var(--bucknell-blue);
}

.guest-message {
    margin: 20px 0;
    padding: 12px 14px;
    background: white;
    border-left: 4px solid var(--bucknell-orange);
}

.topic.guest {
    opacity: 0.7;
    cursor: default;
}


/* ---------------------------------------------------------------
 * Prerequisite help on locked cards.
 * Available prerequisites link directly to the quiz.
 * Locked/unavailable prerequisites link to their card in the map.
 * --------------------------------------------------------------- */
.prerequisites {
    margin-top: 10px;
    padding-top: 9px;
    border-top: 1px solid var(--border);
    font-size: 0.76rem;
}

.prerequisites > strong {
    display: block;
    margin-bottom: 6px;
    color: var(--text);
}

.prerequisite-list {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.prerequisite {
    display: inline-flex;
    flex-direction: column;
    gap: 1px;
    padding: 5px 7px;
    color: var(--bucknell-blue);
    background: white;
    border: 1px solid var(--border);
    border-radius: 5px;
    text-decoration: none;
}

.prerequisite:hover,
.prerequisite:focus {
    border-color: var(--bucknell-blue);
    text-decoration: underline;
}

.prerequisite small {
    color: var(--muted);
    font-size: 0.68rem;
}

.prerequisite-available,
.prerequisite-in-progress {
    border-color: var(--bucknell-orange);
}

.prerequisite-locked,
.prerequisite-unavailable {
    opacity: 0.7;
}

/* Make a linked prerequisite card easy to spot after navigating to it. */
.topic:target {
    outline: 3px solid var(--bucknell-orange);
    outline-offset: 2px;
}