/* ============================================
   Campaign Page
   ============================================ */

.campaign {
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    font-family: var(--font-family);
}

.campaign__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 0 var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.campaign__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.campaign__subtitle {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    padding: 0 var(--spacing-xl);
    margin: 0 0 var(--spacing-lg);
}

.campaign__status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.campaign__status--error {
    color: var(--color-warning);
}

.campaign__track {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: var(--spacing-md) var(--spacing-xl) var(--spacing-lg);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
}

.campaign__chapters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-xl) var(--spacing-lg);
}

.campaign__track > .level-card {
    flex: 0 0 auto;
    width: clamp(190px, 42vw, 260px);
    scroll-snap-align: center;
}

.chapter-card {
    background: linear-gradient(160deg, var(--color-bg-secondary), rgba(255, 255, 255, 0.03));
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    position: relative;
    min-height: 160px;
    cursor: pointer;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    outline: none;
    transition: transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal);
    -webkit-user-select: none;
    user-select: none;
}

.chapter-card:hover:not(.chapter-card--locked),
.chapter-card:focus-visible:not(.chapter-card--locked) {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.chapter-card:active:not(.chapter-card--locked) {
    transform: translateY(-1px);
}

.chapter-card--locked {
    cursor: default;
    filter: grayscale(0.5) brightness(0.75);
}

.chapter-card__body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.chapter-card__eyebrow {
    font-size: var(--font-size-xs);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.chapter-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
}

.chapter-card__meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.chapter-card__lock-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chapter-card__lock-icon {
    font-size: var(--font-size-2xl);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.6));
}

.campaign__hint {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    opacity: 0.4;
    padding: var(--spacing-sm) 0;
    letter-spacing: 0.1em;
}

/* ============================================
   Level Card
   ============================================ */

.level-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    outline: none;
    transition: transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal);
    -webkit-user-select: none;
    user-select: none;
}

.level-card:hover:not(.level-card--locked),
.level-card:focus-visible:not(.level-card--locked) {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.level-card:active:not(.level-card--locked) {
    transform: translateY(-1px);
}

.level-card--locked {
    cursor: default;
    filter: grayscale(0.5) brightness(0.7);
}

.level-card__lock-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    z-index: 1;
}

.level-card__lock-icon {
    font-size: var(--font-size-2xl);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.6));
}

.level-card__thumbnail {
    border-radius: var(--radius-md);
    background:
        radial-gradient(circle at top, rgba(255, 255, 255, 0.08), transparent 60%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(0, 0, 0, 0.16));
    padding: var(--spacing-sm);
    height: clamp(9.5rem, 24vh, 11rem);
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    --thumbnail-viewport-height: calc(clamp(9.5rem, 24vh, 11rem) - (var(--spacing-sm) * 2));
}

.level-card__info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-top: var(--spacing-xs);
}

.level-card__name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.level-card__medals {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: auto;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.level-card__medal-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.level-card__medal-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.level-card__medal-value {
    font-size: var(--font-size-lg);
    line-height: 1;
}

.level-card__medal-value--none {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    opacity: 0.35;
}

/* ============================================
   Map Thumbnail
   ============================================ */

.thumbnail-grid {
    --thumbnail-cols: 1;
    --thumbnail-rows: 1;
    --thumbnail-gap: 1px;
    display: grid;
    grid-template-columns: repeat(var(--thumbnail-cols), minmax(0, 1fr));
    grid-template-rows: repeat(var(--thumbnail-rows), minmax(0, 1fr));
    gap: var(--thumbnail-gap);
    pointer-events: none;
    width: min(
        100%,
        calc(var(--thumbnail-viewport-height) * var(--thumbnail-cols) / var(--thumbnail-rows))
    );
    aspect-ratio: var(--thumbnail-cols) / var(--thumbnail-rows);
    padding: var(--thumbnail-gap);
    background: rgba(7, 11, 19, 0.52);
    border-radius: calc(var(--radius-md) - 2px);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
    margin: 0 auto;
    box-sizing: border-box;
}

.thumbnail-tile {
    aspect-ratio: 1;
    min-width: 0;
    min-height: 0;
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

@media (max-width: 480px) {
    .campaign__header {
        padding: 0 var(--spacing-md);
    }

    .campaign__subtitle {
        padding: 0 var(--spacing-md);
    }

    .campaign__track {
        gap: var(--spacing-md);
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .campaign__chapters {
        gap: var(--spacing-md);
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .campaign__title {
        font-size: var(--font-size-xl);
    }
}