/* TV Navigation System - Optimized for Remote Control Navigation */

:root {
    /* TV-Optimized Colors */
    --tv-focus-color: #ff0040;
    --tv-focus-bg: rgba(255, 0, 64, 0.15);
    --tv-focus-border: 4px solid #ff0040;
    --tv-secondary-focus: #00a8ff;
    --tv-active-bg: rgba(255, 255, 255, 0.1);
    
    /* TV-Optimized Sizes */
    --tv-min-target: 60px;
    --tv-font-base: 18px;
    --tv-font-large: 24px;
    --tv-font-xlarge: 32px;
    --tv-padding-base: 20px;
    --tv-padding-large: 30px;
    
    /* TV Animation */
    --tv-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --tv-focus-scale: 1.05;
}

/* TV Mode Active Class */
body.tv-mode {
    font-size: var(--tv-font-base) !important;
    cursor: none !important;
}

/* Hide Mouse Cursor in TV Mode */
body.tv-mode * {
    cursor: none !important;
}

/* Focusable Elements Base Style */
.tv-focusable,
[data-tv-focus="true"] {
    position: relative;
    transition: var(--tv-transition);
    outline: none !important;
    min-height: var(--tv-min-target);
    min-width: var(--tv-min-target);
}

/* TV Focus States */
.tv-focusable:focus,
.tv-focusable.focused,
[data-tv-focus="true"]:focus,
[data-tv-focus="true"].focused {
    transform: scale(var(--tv-focus-scale));
    z-index: 1000;
    box-shadow: 0 0 0 4px var(--tv-focus-color),
                0 0 30px rgba(255, 0, 64, 0.5),
                0 10px 40px rgba(0, 0, 0, 0.5);
    border-radius: 12px;
    background: var(--tv-focus-bg) !important;
}

/* Focus Ring Animation */
@keyframes focusPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 0, 64, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 0, 64, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 0, 64, 0);
    }
}

.tv-focusable:focus::after,
.tv-focusable.focused::after {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    border: 3px solid var(--tv-focus-color);
    border-radius: 16px;
    animation: focusPulse 1.5s infinite;
    pointer-events: none;
}

/* Navigation Container */
.tv-nav-container {
    display: flex;
    gap: 20px;
    padding: var(--tv-padding-base);
    flex-wrap: wrap;
    align-items: center;
}

/* TV Grid Layout */
.tv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 25px;
    padding: var(--tv-padding-large);
}

/* TV Cards */
.tv-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px;
    transition: var(--tv-transition);
    border: 2px solid transparent;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.tv-card:focus,
.tv-card.focused {
    border-color: var(--tv-focus-color);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px) scale(1.05);
}

/* TV Buttons */
.tv-btn,
button.tv-focusable,
a.tv-focusable {
    padding: 15px 30px !important;
    font-size: var(--tv-font-base) !important;
    font-weight: 600 !important;
    border-radius: 8px !important;
    background: rgba(255, 255, 255, 0.1) !important;
    color: white !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 10px !important;
    min-height: var(--tv-min-target) !important;
    text-decoration: none !important;
}

.tv-btn:focus,
.tv-btn.focused,
button.tv-focusable:focus,
button.tv-focusable.focused,
a.tv-focusable:focus,
a.tv-focusable.focused {
    background: var(--tv-focus-color) !important;
    border-color: var(--tv-focus-color) !important;
    color: white !important;
    transform: scale(1.08) !important;
}

/* TV Menu Items */
.tv-menu-item {
    padding: 20px 30px;
    font-size: var(--tv-font-large);
    border-left: 5px solid transparent;
    transition: var(--tv-transition);
    display: block;
    width: 100%;
    text-align: right;
    background: transparent;
}

.tv-menu-item:focus,
.tv-menu-item.focused {
    background: var(--tv-focus-bg);
    border-left-color: var(--tv-focus-color);
    padding-right: 40px;
}

/* TV Horizontal Scroll */
.tv-scroll-container {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: var(--tv-padding-base);
    /* scroll-behavior: smooth; */
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.tv-scroll-container::-webkit-scrollbar {
    display: none;
}

.tv-scroll-item {
    flex: 0 0 auto;
    min-width: 200px;
    transition: var(--tv-transition);
}

.tv-scroll-item:focus,
.tv-scroll-item.focused {
    transform: scale(1.1) translateY(-10px);
}

/* TV Video/Image Thumbnails */
.tv-thumbnail {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.3);
    aspect-ratio: 16/9;
}

.tv-thumbnail img,
.tv-thumbnail video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--tv-transition);
}

.tv-thumbnail:focus img,
.tv-thumbnail.focused img,
.tv-thumbnail:focus video,
.tv-thumbnail.focused video {
    transform: scale(1.1);
}

.tv-thumbnail-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: white;
    transform: translateY(100%);
    transition: var(--tv-transition);
}

.tv-thumbnail:focus .tv-thumbnail-overlay,
.tv-thumbnail.focused .tv-thumbnail-overlay {
    transform: translateY(0);
}

/* TV Input Fields */
input.tv-focusable,
textarea.tv-focusable,
select.tv-focusable {
    padding: 15px 20px !important;
    font-size: var(--tv-font-base) !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    background: rgba(255, 255, 255, 0.05) !important;
    color: white !important;
    border-radius: 8px !important;
    width: 100% !important;
    min-height: var(--tv-min-target) !important;
}

input.tv-focusable:focus,
input.tv-focusable.focused,
textarea.tv-focusable:focus,
textarea.tv-focusable.focused,
select.tv-focusable:focus,
select.tv-focusable.focused {
    border-color: var(--tv-focus-color) !important;
    background: rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 0 20px rgba(255, 0, 64, 0.3) !important;
}

/* TV Modal/Dialog */
.tv-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(20, 20, 30, 0.98);
    border-radius: 16px;
    padding: var(--tv-padding-large);
    min-width: 500px;
    max-width: 80vw;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 10000;
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

.tv-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    backdrop-filter: blur(5px);
}

/* TV Notifications */
.tv-notification {
    position: fixed;
    top: 30px;
    right: 30px;
    background: rgba(30, 30, 40, 0.95);
    border: 2px solid var(--tv-focus-color);
    border-radius: 12px;
    padding: 20px 30px;
    font-size: var(--tv-font-base);
    color: white;
    z-index: 11000;
    min-width: 300px;
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* TV Loading Indicator */
.tv-loading {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    font-size: var(--tv-font-large);
    color: white;
}

.tv-loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--tv-focus-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* TV Progress Bar */
.tv-progress {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin: 20px 0;
}

.tv-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--tv-focus-color), var(--tv-secondary-focus));
    transition: width 0.3s ease;
    border-radius: 4px;
}

/* TV-Optimized Typography */
body.tv-mode h1 {
    font-size: 48px !important;
    font-weight: 700 !important;
    margin-bottom: 30px !important;
}

body.tv-mode h2 {
    font-size: 36px !important;
    font-weight: 600 !important;
    margin-bottom: 25px !important;
}

body.tv-mode h3 {
    font-size: 28px !important;
    font-weight: 600 !important;
    margin-bottom: 20px !important;
}

body.tv-mode p {
    font-size: var(--tv-font-base) !important;
    line-height: 1.6 !important;
    margin-bottom: 15px !important;
}

/* TV-Optimized Spacing */
body.tv-mode .container,
body.tv-mode .row,
body.tv-mode [class*="col-"] {
    padding: var(--tv-padding-base) !important;
}

/* Remote Control Hints */
.tv-control-hint {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    padding: 15px 30px;
    border-radius: 30px;
    display: flex;
    gap: 30px;
    z-index: 10000;
    font-size: 16px;
}

.tv-control-hint-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
}

.tv-control-hint-key {
    background: var(--tv-focus-color);
    color: white;
    padding: 5px 12px;
    border-radius: 6px;
    font-weight: bold;
    font-size: 14px;
}

/* Responsive for Different TV Sizes */
@media (min-width: 1920px) {
    :root {
        --tv-font-base: 22px;
        --tv-font-large: 28px;
        --tv-font-xlarge: 38px;
        --tv-padding-base: 25px;
        --tv-padding-large: 40px;
        --tv-min-target: 70px;
    }
}

@media (min-width: 3840px) { /* 4K TVs */
    :root {
        --tv-font-base: 32px;
        --tv-font-large: 40px;
        --tv-font-xlarge: 52px;
        --tv-padding-base: 40px;
        --tv-padding-large: 60px;
        --tv-min-target: 90px;
    }
}

/* Disable hover effects in TV mode */
body.tv-mode *:hover {
    transform: none !important;
    background: inherit !important;
    color: inherit !important;
}

/* Only apply transformations on focus */
body.tv-mode *:focus,
body.tv-mode *.focused {
    transition: var(--tv-transition) !important;
}