/* ============================================
   LOADING - UI Components
   Cards, buttons, badges, modals, carousels
   ============================================ */

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal) var(--ease-out-expo);
    white-space: nowrap;
    user-select: none;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--text-primary);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 40px var(--accent-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--text-tertiary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--overlay-light);
    color: var(--text-primary);
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

/* ===== CARDS ===== */
.card {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal) var(--ease-out-expo);
}

.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Movie/Show Card */
.media-card {
    position: relative;
    width: var(--card-width-md);
    flex-shrink: 0;
    cursor: pointer;
}

.media-card__poster {
    position: relative;
    aspect-ratio: var(--card-aspect-poster);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-tertiary);
}

.media-card__poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow) var(--ease-out-expo);
}

.media-card:hover .media-card__poster img {
    transform: scale(1.1);
}

.media-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-4);
}

.media-card:hover .media-card__overlay {
    opacity: 1;
}

.media-card__play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 56px;
    height: 56px;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-normal) var(--ease-out-back);
    box-shadow: var(--shadow-glow);
}

.media-card:hover .media-card__play {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.media-card__play svg {
    width: 24px;
    height: 24px;
    fill: white;
    margin-left: 3px;
}

.media-card__info {
    padding: var(--space-3) 0;
}

.media-card__title {
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.media-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.media-card__rating {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--gold-primary);
}

.media-card__rating svg {
    width: 12px;
    height: 12px;
    fill: var(--gold-primary);
}

/* Wide Card (Backdrop) */
.wide-card {
    position: relative;
    aspect-ratio: var(--card-aspect-backdrop);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
}

.wide-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.wide-card:hover img {
    transform: scale(1.05);
}

.wide-card__content {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.9) 0%, transparent 60%);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.wide-card__title {
    font-size: var(--text-3xl);
    font-weight: var(--weight-bold);
    margin-bottom: var(--space-2);
}

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
}

.badge-primary {
    background: var(--accent-primary);
    color: var(--text-primary);
}

.badge-gold {
    background: var(--gradient-gold);
    color: var(--bg-primary);
}

.badge-glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    color: var(--text-primary);
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--text-tertiary);
    color: var(--text-secondary);
}

/* ===== RATING ===== */
.rating {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    background: rgba(0, 0, 0, 0.6);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
}

.rating--high {
    color: var(--success);
}

.rating--medium {
    color: var(--gold-primary);
}

.rating--low {
    color: var(--error);
}

/* ===== CAROUSEL ===== */
.carousel {
    position: relative;
}

.carousel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}

.carousel__title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
}

.carousel__nav {
    display: flex;
    gap: var(--space-2);
}

.carousel__btn {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel__btn:hover {
    background: var(--bg-hover);
    border-color: var(--text-tertiary);
}

.carousel__btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.carousel__btn svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-primary);
}

.carousel__track {
    display: flex;
    gap: var(--space-4);
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: var(--space-2) 0;
}

.carousel__track::-webkit-scrollbar {
    display: none;
}

/* ===== SKELETON LOADER ===== */
.skeleton {
    position: relative;
    overflow: hidden;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
            transparent,
            var(--overlay-light),
            transparent);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.skeleton-poster {
    aspect-ratio: var(--card-aspect-poster);
    border-radius: var(--radius-lg);
}

.skeleton-text {
    height: 1em;
    border-radius: var(--radius-sm);
}

.skeleton-text--sm {
    width: 60%;
}

.skeleton-text--md {
    width: 80%;
}

.skeleton-text--lg {
    width: 100%;
}

/* ===== GENRE TAGS ===== */
.genre-tag {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.genre-tag:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.genre-tag--active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

/* ===== SEARCH INPUT ===== */
.search-box {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.search-box__input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    padding-left: var(--space-12);
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

.search-box__input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-box__icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    stroke: var(--text-tertiary);
    pointer-events: none;
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    gap: var(--space-1);
    background: var(--bg-secondary);
    padding: var(--space-1);
    border-radius: var(--radius-lg);
    width: fit-content;
}

.tab {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab:hover {
    color: var(--text-primary);
}

.tab--active {
    background: var(--accent-primary);
    color: var(--text-primary);
}

/* ===== MODAL ===== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--overlay-darker);
    backdrop-filter: var(--blur-md);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal) var(--ease-out-back);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.modal__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal__close:hover {
    background: var(--accent-primary);
}

/* ===== TOOLTIP ===== */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    font-size: var(--text-xs);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    z-index: var(--z-tooltip);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* ===== LOADING SPINNER ===== */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner--sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner--lg {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

/* ===== PROGRESS BAR ===== */
.progress {
    width: 100%;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress__bar {
    height: 100%;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}