/* ══════════════════════════════════════════════════════════════
   Banner Carousel — Premium Styles
   Theme: Blue + White + Gold
   ══════════════════════════════════════════════════════════════ */
:root {
    --kc-bg: #0f2a5a;
    --kc-grad-1: #0f2a5a;
    --kc-grad-2: #16397a;
    --kc-grad-3: #0a1937;
    --kc-overlay-rgb: 10, 25, 55;
    --kc-text-on-media: #ffffff;
    --kc-btn-grad-1: #d4af37;
    --kc-btn-grad-2: #f4d675;
    --kc-btn-text: #1a1a1a;
    --kc-arrow-bg: rgba(255, 255, 255, 0.85);
    --kc-arrow-color: #0f2a5a;
    --kc-arrow-hover-bg: #ffffff;
    --kc-dot-bg: rgba(255, 255, 255, 0.5);
    --kc-dot-active-bg: #d4af37;
}

.kc-banner-wrap {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: 40;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 12px 0;
    box-sizing: border-box;
}

.kc-banner-mount:not([hidden]) {
    display: block;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto 6px;
    padding: 0 12px 0;
    box-sizing: border-box;
    aspect-ratio: 26 / 6;
}

.kc-banner-viewport {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 16px;
    background: var(--kc-bg);
    aspect-ratio: 26 / 6;
}

@media (max-width: 640px) {
    .kc-banner-viewport { aspect-ratio: 3 / 1; border-radius: 12px; }
    .kc-banner-mount:not([hidden]) { aspect-ratio: 3 / 1; }
}

.kc-banner-track {
    display: flex;
    height: 100%;
    transition: transform 0.55s cubic-bezier(0.65, 0, 0.35, 1);
    will-change: transform;
    touch-action: pan-y;
}

.kc-banner-slide {
    position: relative;
    flex: 0 0 100%;
    height: 100%;
    overflow: hidden;
}

.kc-banner-slide-textonly {
    background: linear-gradient(135deg, var(--kc-grad-1) 0%, var(--kc-grad-2) 55%, var(--kc-grad-3) 100%);
}
.kc-banner-slide-textonly .kc-banner-overlay {
    background: none;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px 32px;
}
.kc-banner-slide-textonly .kc-banner-desc {
    max-width: 520px;
}

.kc-banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    user-select: none;
    -webkit-user-drag: none;
}

.kc-banner-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 10px 28px 24px 28px;
    background: linear-gradient(0deg, rgba(var(--kc-overlay-rgb), 0.82) 0%, rgba(var(--kc-overlay-rgb), 0.35) 55%, rgba(var(--kc-overlay-rgb), 0) 100%);
    color: var(--kc-text-on-media);
    box-sizing: border-box;
}

.kc-banner-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0 0 6px;
    text-shadow: 0 2px 6px rgba(0,0,0,0.35);
    line-height: 1.3;
}

.kc-banner-desc {
    font-size: 0.92rem;
    margin: 0 0 12px;
    max-width: 640px;
    opacity: 0.92;
    line-height: 1.5;
}

.kc-banner-btn {
    display: inline-block;
    align-self: flex-start;
    background: linear-gradient(135deg, var(--kc-btn-grad-1) 0%, var(--kc-btn-grad-2) 100%);
    color: var(--kc-btn-text);
    font-weight: 700;
    font-size: 0.88rem;
    padding: 9px 22px;
    border-radius: 999px;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(212, 175, 55, 0.45);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.kc-banner-btn:hover,
.kc-banner-btn:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(212, 175, 55, 0.55);
}

@media (max-width: 640px) {
    .kc-banner-title { font-size: 1.05rem; }
    .kc-banner-desc  { font-size: 0.82rem; -webkit-line-clamp: 2; overflow: hidden; display: -webkit-box; -webkit-box-orient: vertical; }
    .kc-banner-btn   { font-size: 0.8rem; padding: 7px 18px; }
    .kc-banner-overlay { padding: 6px 16px; }
}

/* Arrows */
.kc-banner-arrow {
    display: none !important;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--kc-arrow-bg);
    color: var(--kc-arrow-color);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    z-index: 3;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: background 0.2s ease, transform 0.15s ease;
}
.kc-banner-arrow:hover { background: var(--kc-arrow-hover-bg); transform: translateY(-50%) scale(1.06); }
.kc-banner-arrow.kc-prev { left: 12px; }
.kc-banner-arrow.kc-next { right: 12px; }

@media (max-width: 640px) {
    .kc-banner-arrow { width: 32px; height: 32px; font-size: 0.95rem; }
}

/* Pagination dots */
.kc-banner-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 7px;
    z-index: 3;
}
.kc-banner-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--kc-dot-bg);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: background 0.2s ease, width 0.2s ease;
}
.kc-banner-dot.active {
    background: var(--kc-dot-active-bg);
    width: 22px;
    border-radius: 5px;
}

/* Skeleton / lazy placeholder */
.kc-banner-skeleton {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #e6ecf5 25%, #f3f6fb 37%, #e6ecf5 63%);
    background-size: 400% 100%;
    animation: kc-shimmer 1.4s ease infinite;
}
@keyframes kc-shimmer {
    0%   { background-position: 100% 50%; }
    100% { background-position: 0 50%; }
}

.kc-banner-wrap[hidden],
.kc-banner-viewport[data-empty="1"] {
    display: none;
}

/* Inline (non-fixed) banner variant — used inside modals like detailSheet */
#detailSheet .kc-banner-inline:not([hidden]) {
    display: block;
    width: 100%;
    max-width: 100%;
    aspect-ratio: unset;
    height: auto;
    padding: 0;
    margin: 0 auto 14px;
    box-sizing: border-box;
}
#detailSheet .kc-banner-inline .kc-banner-wrap {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    z-index: auto;
    padding: 0;
    margin: 0 auto;
}
#detailSheet .kc-banner-inline .kc-banner-viewport {
    aspect-ratio: 21 / 9;
}