/*
 * Sponsor slots (see includes/sponsors.php).
 * Desktop (>= 1280px): two fixed sidebars of 5 cards each, page content sits between them.
 * Smaller screens: a scrolling strip under the header and one at the bottom of the screen.
 */

:root {
    --sponsor-header-h: 60px;
    --sponsor-sidebar-w: 16.666%;
    --sponsor-strip-h: 56px;
    --sponsor-accent: var(--v2-accent, #6d4aff);
}

/* ---------- Desktop sidebars ---------- */

.sponsor-sidebar {
    display: none;
}

.sponsor-strip {
    display: none;
}

@media (min-width: 1280px) {
    body {
        padding-left: var(--sponsor-sidebar-w);
        padding-right: var(--sponsor-sidebar-w);
    }

    .sponsor-sidebar {
        display: grid;
        grid-template-rows: repeat(5, minmax(0, 1fr));
        gap: 1rem;
        position: fixed;
        top: var(--sponsor-header-h);
        bottom: 0;
        width: var(--sponsor-sidebar-w);
        padding: 1rem;
        box-sizing: border-box;
        z-index: 50;
    }

    .sponsor-sidebar-left {
        left: 0;
    }

    .sponsor-sidebar-right {
        right: 0;
        /* Leave room for the "by @rrmdp" badge in the bottom-right corner */
        padding-bottom: 2.75rem;
    }

    .sponsor-sidebar:has(.sponsor-sidebar-link) {
        grid-template-rows: repeat(5, minmax(0, 1fr)) auto;
    }

    /* Keep the corner widgets clear of the right sidebar */
    #scroll-to-top {
        right: calc(var(--sponsor-sidebar-w) + 20px);
    }
}

.sponsor-slot {
    position: relative;
    min-height: 0;
    perspective: 1000px;
}

.sponsor-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    padding: 0.75rem;
    text-align: center;
    text-decoration: none;
    color: var(--banner-text);
    background: var(--banner-bg);
    border: 1px solid var(--banner-border);
    border-radius: 12px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

a.sponsor-card:hover {
    border-color: var(--sponsor-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--card-shadow);
}

.sponsor-card img {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    object-fit: cover;
    margin-bottom: 0.25rem;
}

.sponsor-card .sponsor-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--banner-text);
}

.sponsor-card .sponsor-headline {
    font-size: 0.75rem;
    line-height: 1.35;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Free slot */
.sponsor-free {
    font: inherit;
    cursor: pointer;
    background: var(--banner-bg);
    border: 2px dashed var(--banner-border);
    color: var(--text-secondary);
}

.sponsor-free:hover {
    border-color: var(--sponsor-accent);
    color: var(--banner-text);
}

.sponsor-card.sponsor-free svg {
    width: 16px;
    height: 16px;
    opacity: 0.35;
    margin-bottom: 0.15rem;
    transition: opacity 0.2s ease;
}

.sponsor-card.sponsor-free:hover svg {
    opacity: 1;
}

.sponsor-free-title {
    font-size: 0.75rem;
    font-weight: 600;
}

.sponsor-free-spots {
    font-size: 0.7rem;
    opacity: 0.7;
}

.sponsor-sidebar-link {
    background: none;
    border: none;
    font: inherit;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    text-underline-offset: 2px;
}

.sponsor-sidebar-link:hover {
    color: var(--banner-text);
    text-decoration: underline;
}

/* Rotating slot: items flip in and out every 10 seconds */
.sponsor-rotator,
.sponsor-rotator-item {
    position: absolute;
    inset: 0;
}

.sponsor-rotator-item {
    opacity: 0;
    visibility: hidden;
    transform: rotateY(-180deg) scale(0.8);
    backface-visibility: hidden;
    transition: transform 0.4s ease-in-out, opacity 0.4s ease-in-out, visibility 0s linear 0.4s;
}

.sponsor-rotator-item.is-active {
    opacity: 1;
    visibility: visible;
    transform: rotateY(0) scale(1);
    transition-delay: 0.4s, 0.4s, 0s;
}

.sponsor-rotator-item.is-leaving {
    transform: rotateY(180deg) scale(0.8);
}

/* ---------- Mobile / tablet strips ---------- */

@media (max-width: 1279px) {
    body {
        padding-top: calc(var(--sponsor-header-h) + var(--sponsor-strip-h));
        padding-bottom: var(--sponsor-strip-h);
    }

    .sponsor-strip {
        display: block;
        position: fixed;
        left: 0;
        right: 0;
        height: var(--sponsor-strip-h);
        overflow-x: auto;
        overflow-y: hidden;
        scrollbar-width: none;
        background: var(--bg-header, rgba(255, 255, 255, 0.72));
        backdrop-filter: saturate(180%) blur(18px);
        -webkit-backdrop-filter: saturate(180%) blur(18px);
        z-index: 900; /* below the header (1000) and the mobile menu (999) */
    }

    .sponsor-strip::-webkit-scrollbar {
        display: none;
    }

    .sponsor-strip-top {
        top: var(--sponsor-header-h);
        border-bottom: 1px solid var(--banner-border);
    }

    .sponsor-strip-bottom {
        bottom: 0;
        border-top: 1px solid var(--banner-border);
    }

    #scroll-to-top {
        bottom: calc(var(--sponsor-strip-h) + 60px);
    }

    a.rrmdp {
        bottom: var(--sponsor-strip-h);
    }
}

.sponsor-strip-track {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: max-content;
    min-height: var(--sponsor-strip-h);
    padding: 0 0.5rem;
    animation: sponsor-scroll 40s linear infinite;
    will-change: transform;
}

/* Paused while the user scrolls the strip by hand (set by sponsors.js) */
.sponsor-strip.is-touched .sponsor-strip-track {
    animation-play-state: paused;
}

@keyframes sponsor-scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
    .sponsor-strip-track {
        animation: none;
    }
}

.sponsor-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
    white-space: nowrap;
    padding: 0.55rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--banner-border);
    background: var(--banner-bg);
    color: var(--banner-text);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
}

a.sponsor-chip:hover {
    border-color: var(--sponsor-accent);
}

.sponsor-chip img {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

.sponsor-chip.sponsor-free {
    font-weight: 500;
}

.sponsor-chip.sponsor-free svg {
    width: 14px;
    height: 14px;
}

/* ---------- Advertise modal ---------- */

.sponsor-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.sponsor-modal[hidden] {
    display: none;
}

.sponsor-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(5, 6, 15, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.sponsor-modal-content {
    position: relative;
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    box-sizing: border-box;
    padding: 1.75rem;
    border-radius: 18px;
    background: var(--v2-surface-solid, var(--card-bg, #fff));
    color: var(--text-primary);
    border: 1px solid var(--banner-border);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    animation: sponsor-modal-in 0.2s ease-out;
}

@keyframes sponsor-modal-in {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: none; }
}

.sponsor-modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.9rem;
    background: none;
    border: none;
    font-size: 1.6rem;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
}

.sponsor-modal-close:hover {
    color: var(--text-primary);
}

.sponsor-modal-content h2 {
    margin: 0 0 0.35rem;
    font-size: 1.35rem;
}

.sponsor-modal-subtitle {
    margin: 0 0 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sponsor-modal-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.sponsor-modal-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0.75rem 0.5rem;
    border-radius: 10px;
    background: var(--v2-accent-soft, rgba(109, 74, 255, 0.08));
    border: 1px solid var(--banner-border);
}

.sponsor-modal-stat strong {
    font-size: 1.05rem;
}

.sponsor-modal-stat span {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.sponsor-modal-stat.is-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
}

.sponsor-modal-stat.is-warning strong {
    color: #d97706;
}

.sponsor-modal-stat.is-urgent {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
}

.sponsor-modal-stat.is-urgent strong {
    color: #dc2626;
}

.sponsor-modal-section {
    margin-bottom: 1.1rem;
}

.sponsor-modal-section h3 {
    margin: 0 0 0.4rem;
    font-size: 0.9rem;
}

.sponsor-modal-section p {
    margin: 0.25rem 0;
    font-size: 0.88rem;
    line-height: 1.55;
    color: var(--text-secondary);
}

.sponsor-modal-section strong {
    color: var(--text-primary);
}

.sponsor-modal-pricing {
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid var(--banner-border);
    background: var(--v2-surface-2, rgba(0, 0, 0, 0.03));
}

.sponsor-modal-full {
    color: #d97706 !important;
    font-weight: 500;
}

.sponsor-modal-cta {
    display: block;
    text-align: center;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    background: var(--v2-grad, #6d4aff);
    color: #fff !important;
    font-weight: 600;
    text-decoration: none;
    transition: filter 0.2s ease, transform 0.2s ease;
}

.sponsor-modal-cta:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

@media (max-width: 480px) {
    .sponsor-modal-content {
        padding: 1.4rem 1.1rem;
    }

    .sponsor-modal-stats {
        gap: 0.4rem;
    }
}