/* ========================================
   ABOUT PAGE IMAGE SLIDER
   Auto-playing campus gallery slider
   ======================================== */

/* Slider Container */
.about-image-slider {
    position: relative;
    width: 100%;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.slider-container {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: var(--radius-2xl);
}

/* Slider Wrapper */
.slider-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Individual Slides */
.slider-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out, transform 0.8s ease-in-out;
    transform: scale(1.05);
}

.slider-slide.active {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
}

/* Slider Images */
.slider-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    transition: transform 0.3s ease;
}

.slider-slide.active .slider-image:hover {
    transform: scale(1.02);
}

/* Slider Captions */
.slider-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 30px 20px 20px;
    border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    z-index: 3;
}

.slider-slide.active .slider-caption {
    transform: translateY(0);
}

.slider-caption h4 {
    margin: 0 0 5px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #d4af37;
}

.slider-caption p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Navigation Arrows */
.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    color: #B92C32;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    opacity: 0;
}

.slider-container:hover .slider-nav {
    opacity: 1;
}

.slider-nav:hover {
    background: #d4af37;
    color: white;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.slider-prev {
    left: 20px;
}

.slider-next {
    right: 20px;
}

/* Progress Bar */
.slider-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.3);
    z-index: 11;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #d4af37, #B92C32);
    width: 0;
    transition: width 0.1s linear;
}

/* Slide Indicators */
.slider-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
    background: rgba(0, 0, 0, 0.5);
    padding: 8px 12px;
    border-radius: 20px;
    backdrop-filter: blur(5px);
}

.indicator {
    width: 8px;
    height: 8px;
    border: none;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    position: relative;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

.indicator.active {
    background: #d4af37;
    width: 24px;
    border-radius: 4px;
}

.indicator-dot {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

/* Play/Pause Controls */
.slider-controls {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 10;
}

.slider-play-pause {
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.6);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.slider-play-pause:hover {
    background: rgba(212, 175, 55, 0.8);
    transform: scale(1.1);
}

/* Loading State */
.slider-container.loading {
    background: linear-gradient(45deg, #f0f0f0 25%, transparent 25%, transparent 75%, #f0f0f0 75%, #f0f0f0),
        linear-gradient(45deg, #f0f0f0 25%, transparent 25%, transparent 75%, #f0f0f0 75%, #f0f0f0);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    animation: loadingShimmer 1.5s infinite;
}

@keyframes loadingShimmer {
    0% {
        background-position: 0 0, 10px 10px;
    }

    100% {
        background-position: 20px 20px, 30px 30px;
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .slider-container {
        height: 350px;
    }

    .slider-nav {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }

    .slider-prev {
        left: 15px;
    }

    .slider-next {
        right: 15px;
    }
}

@media (max-width: 768px) {
    .slider-container {
        height: 300px;
    }

    /* Hide navigation arrows on mobile */
    .slider-nav {
        display: none !important;
    }

    /* Simplified indicators for mobile */
    .slider-indicators {
        bottom: 15px;
        padding: 4px 8px;
        gap: 6px;
        background: rgba(0, 0, 0, 0.4);
        border-radius: 12px;
        backdrop-filter: blur(2px);
        display: flex;
        align-items: center;
        width: fit-content;
        margin: 0 auto;
    }

    .indicator {
        display: block !important;
        width: 6px !important;
        height: 6px !important;
        min-width: 6px !important;
        max-width: 6px !important;
        padding: 0 !important;
        margin: 0 !important;
        border: none !important;
        border-radius: 50% !important;
        background: rgba(255, 255, 255, 0.6) !important;
        font-size: 0 !important;
        line-height: 0 !important;
        appearance: none !important;
        -webkit-appearance: none !important;
        box-shadow: none !important;
        transition: all 0.2s ease !important;
    }

    .indicator.active {
        width: 16px !important;
        max-width: 16px !important;
        background: #d4af37 !important;
        border-radius: 10px !important;
        opacity: 1 !important;
    }

    .slider-caption {
        padding: 20px 15px 15px;
    }

    .slider-caption h4 {
        font-size: 1rem;
    }

    .slider-caption p {
        font-size: 0.8rem;
    }

    .slider-controls {
        top: 10px;
        right: 10px;
    }

    .slider-play-pause {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .slider-container {
        height: 250px;
    }

    .about-image-slider {
        border-radius: var(--radius-xl);
    }

    .slider-container {
        border-radius: var(--radius-xl);
    }

    .slider-image {
        border-radius: var(--radius-xl);
    }

    .slider-caption {
        border-radius: 0 0 var(--radius-xl) var(--radius-xl);
        padding: 15px 12px 12px;
    }

    .slider-indicators {
        bottom: 12px;
        padding: 4px 8px;
        gap: 4px;
    }

    .indicator {
        width: 5px;
        height: 5px;
    }

    .indicator.active {
        width: 15px;
    }
}

/* Touch/Swipe Support */
@media (hover: none) and (pointer: coarse) {
    .slider-nav {
        opacity: 1;
    }

    .slider-caption {
        transform: translateY(0);
    }

    /* Enhanced touch targets */
    .slider-container {
        -webkit-tap-highlight-color: transparent;
        touch-action: pan-y pinch-zoom;
    }

    .slider-container.swiping {
        touch-action: none;
    }

    /* Visual feedback during swipe */
    .slider-slide.swiping {
        transition: none;
    }

    .slider-slide.swipe-feedback-left {
        transform: translateX(-20px);
        transition: transform 0.3s ease;
    }

    .slider-slide.swipe-feedback-right {
        transform: translateX(20px);
        transition: transform 0.3s ease;
    }
}

/* Swipe Hint for Mobile */
.swipe-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    z-index: 15;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(5px);
    animation: fadeInOut 3s ease-in-out;
    pointer-events: none;
}

.swipe-hint i {
    font-size: 1.2rem;
    animation: swipeGesture 1s ease-in-out infinite;
}

@keyframes fadeInOut {

    0%,
    100% {
        opacity: 0;
    }

    20%,
    80% {
        opacity: 1;
    }
}

@keyframes swipeGesture {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(-5px);
    }
}

/* Touch-specific optimizations */
.slider-container {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

/* Prevent text selection during swipe */
.slider-slide * {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    pointer-events: none;
}

.slider-slide.active .slider-image {
    pointer-events: auto;
    cursor: grab;
}

.slider-slide.active .slider-image:active {
    cursor: grabbing;
}

/* Swipe hint animation */
@keyframes swipeHint {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(-10px);
    }
}

.slider-container.swipe-hint .slider-slide.active {
    animation: swipeHint 2s ease-in-out;
}

/* Touch feedback for indicators */
@media (hover: none) and (pointer: coarse) {
    .indicator:active {
        transform: scale(1.3);
        background: #B92C32;
    }

    .slider-nav:active {
        transform: translateY(-50%) scale(0.95);
        background: #B92C32;
        color: white;
    }

    .slider-play-pause:active {
        transform: scale(0.95);
        background: #B92C32;
    }
}

/* Print Styles */
@media print {

    .slider-nav,
    .slider-indicators,
    .slider-controls,
    .slider-progress {
        display: none !important;
    }

    .slider-container {
        height: 300px;
    }

    .slider-slide {
        position: static;
        opacity: 1;
        transform: none;
        margin-bottom: 1rem;
    }
}

/* Accessibility */
.slider-nav:focus,
.indicator:focus,
.slider-play-pause:focus {
    outline: 3px solid #d4af37;
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .slider-slide {
        transition: opacity 0.3s ease;
    }

    .slider-nav,
    .indicator,
    .slider-play-pause {
        transition: none;
    }

    .progress-bar {
        transition: none;
    }
}