/* GRMC Slider Frontend Styles v4.0 - Premium Edition */

/* CSS Custom Properties */
:root {
    --grmc-primary: #2563eb;
    --grmc-primary-dark: #1d4ed8;
    --grmc-overlay-dark: rgba(0, 0, 0, 0.4);
    --grmc-overlay-light: rgba(255, 255, 255, 0.95);
    --grmc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --grmc-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --grmc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --grmc-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --grmc-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --grmc-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --grmc-transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --grmc-transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main Slider Container */
.grmc-slider {
    position: relative;
    width: 100%;
    height: var(--slider-height, 500px);
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
    border-radius: 0;
}

.grmc-slider.loaded {
    background: transparent;
}

/* Elegant gradient overlay */
.grmc-slider::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.1) 0%,
        transparent 20%,
        transparent 80%,
        rgba(0, 0, 0, 0.3) 100%
    );
    z-index: 3;
    pointer-events: none;
    opacity: 0.6;
}

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

/* Track */
.grmc-slider-track {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Individual Slides */
.grmc-slide {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.grmc-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(1);
    transition: transform 8s ease-out;
}

/* Ken Burns effect for active slides */
.grmc-slider.loaded .grmc-slide.active img {
    transform: scale(1.08);
}

/* Premium Arrow Buttons */
.grmc-slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    border: none;
    border-radius: 50%;
    background: var(--grmc-overlay-light);
    color: #1f2937;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--grmc-transition-normal);
    opacity: 0;
    visibility: hidden;
    box-shadow: var(--grmc-shadow-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.grmc-slider:hover .grmc-slider-arrow {
    opacity: 1;
    visibility: visible;
}

.grmc-slider-arrow:hover {
    background: #ffffff;
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--grmc-shadow-xl);
}

.grmc-slider-arrow:active {
    transform: translateY(-50%) scale(0.95);
}

.grmc-slider-prev {
    left: 24px;
}

.grmc-slider:hover .grmc-slider-prev {
    left: 28px;
}

.grmc-slider-next {
    right: 24px;
}

.grmc-slider:hover .grmc-slider-next {
    right: 28px;
}

.grmc-slider-arrow svg {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
    transition: transform var(--grmc-transition-fast);
}

.grmc-slider-prev:hover svg {
    transform: translateX(-2px);
}

.grmc-slider-next:hover svg {
    transform: translateX(2px);
}

/* Premium Dot Navigation */
.grmc-slider-dots {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 30px;
    box-shadow: var(--grmc-shadow-md);
}

.grmc-slider-dot {
    width: 10px;
    height: 10px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all var(--grmc-transition-normal);
    padding: 0;
    position: relative;
    overflow: visible;
}

.grmc-slider-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: transparent;
}

.grmc-slider-dot:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

.grmc-slider-dot.active {
    background: #ffffff;
    width: 28px;
    border-radius: 10px;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.5);
}

/* Progress indicator on active dot */
.grmc-slider-dot.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: rgba(37, 99, 235, 0.6);
    border-radius: 10px;
    animation: dotProgress var(--slider-interval, 5000ms) linear;
}

@keyframes dotProgress {
    from { width: 0%; }
    to { width: 100%; }
}

/* ==================== Effect-specific Styles ==================== */

/* Fade Effect */
.grmc-effect-fade .grmc-slider-track {
    position: relative;
}

.grmc-effect-fade .grmc-slide {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed, 600ms) cubic-bezier(0.4, 0, 0.2, 1),
                visibility var(--transition-speed, 600ms);
}

.grmc-effect-fade .grmc-slide.active {
    opacity: 1;
    visibility: visible;
}

/* Slide Effect */
.grmc-effect-slide .grmc-slider-wrapper {
    overflow: hidden;
}

.grmc-effect-slide .grmc-slider-track {
    display: flex;
    transition: transform var(--transition-speed, 600ms) cubic-bezier(0.4, 0, 0.2, 1);
}

.grmc-effect-slide .grmc-slide {
    flex: 0 0 100%;
    position: relative;
}

.grmc-effect-slide .grmc-slide img {
    transform: scale(1) !important;
}

/* Zoom Effect */
.grmc-effect-zoom .grmc-slide {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transform: scale(1.15);
    transition: opacity var(--transition-speed, 600ms) cubic-bezier(0.4, 0, 0.2, 1),
                transform calc(var(--transition-speed, 600ms) * 1.2) cubic-bezier(0.4, 0, 0.2, 1),
                visibility var(--transition-speed, 600ms);
}

.grmc-effect-zoom .grmc-slide.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.grmc-effect-zoom .grmc-slide.prev {
    transform: scale(0.9);
}

.grmc-effect-zoom .grmc-slide img {
    transform: scale(1) !important;
}

/* Flip Effect */
.grmc-effect-flip .grmc-slider-wrapper {
    perspective: 1200px;
    perspective-origin: center center;
}

.grmc-effect-flip .grmc-slide {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform: rotateY(90deg);
    transition: opacity var(--transition-speed, 600ms),
                transform var(--transition-speed, 600ms) cubic-bezier(0.4, 0, 0.6, 1),
                visibility var(--transition-speed, 600ms);
}

.grmc-effect-flip .grmc-slide.active {
    opacity: 1;
    visibility: visible;
    transform: rotateY(0deg);
}

.grmc-effect-flip .grmc-slide img {
    transform: scale(1) !important;
}

/* Cube Effect */
.grmc-effect-cube .grmc-slider-wrapper {
    perspective: 1000px;
    perspective-origin: 50% 50%;
    overflow: visible;
}

.grmc-effect-cube .grmc-slider-track {
    transform-style: preserve-3d;
    transition: transform var(--transition-speed, 600ms) cubic-bezier(0.4, 0, 0.2, 1);
}

.grmc-effect-cube .grmc-slide {
    position: absolute;
    top: 0;
    left: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.grmc-effect-cube .grmc-slide img {
    transform: scale(1) !important;
    box-shadow: var(--grmc-shadow-2xl);
}

/* Cards Effect */
.grmc-effect-cards {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.grmc-effect-cards .grmc-slider-wrapper {
    overflow: visible;
}

.grmc-effect-cards .grmc-slide {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 85%;
    height: 85%;
    transform: translate(-50%, -50%);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--grmc-shadow-2xl);
    transition: all var(--transition-speed, 600ms) cubic-bezier(0.4, 0, 0.2, 1);
}

.grmc-effect-cards .grmc-slide img {
    transform: scale(1) !important;
    border-radius: 16px;
}

.grmc-effect-cards::before {
    display: none;
}

/* ==================== States ==================== */

/* Empty state */
.grmc-slider-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: #64748b;
    font-size: 16px;
    font-weight: 500;
}

/* Loading state */
.grmc-slider:not(.loaded)::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 48px;
    height: 48px;
    margin: -24px 0 0 -24px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: slider-spin 0.8s linear infinite;
    z-index: 5;
}

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

/* ==================== Responsive ==================== */

@media screen and (max-width: 1024px) {
    .grmc-slider-arrow {
        width: 48px;
        height: 48px;
    }

    .grmc-slider-prev {
        left: 16px;
    }

    .grmc-slider:hover .grmc-slider-prev {
        left: 16px;
    }

    .grmc-slider-next {
        right: 16px;
    }

    .grmc-slider:hover .grmc-slider-next {
        right: 16px;
    }
}

@media screen and (max-width: 768px) {
    .grmc-slider-arrow {
        width: 44px;
        height: 44px;
        opacity: 1;
        visibility: visible;
    }

    .grmc-slider-prev {
        left: 12px;
    }

    .grmc-slider:hover .grmc-slider-prev {
        left: 12px;
    }

    .grmc-slider-next {
        right: 12px;
    }

    .grmc-slider:hover .grmc-slider-next {
        right: 12px;
    }

    .grmc-slider-arrow svg {
        width: 20px;
        height: 20px;
    }

    .grmc-slider-dots {
        bottom: 20px;
        gap: 10px;
        padding: 10px 16px;
    }

    .grmc-slider-dot {
        width: 8px;
        height: 8px;
    }

    .grmc-slider-dot.active {
        width: 24px;
    }

    .grmc-effect-cards .grmc-slide {
        width: 90%;
        height: 90%;
    }
}

@media screen and (max-width: 480px) {
    .grmc-slider-arrow {
        width: 40px;
        height: 40px;
    }

    .grmc-slider-prev {
        left: 8px;
    }

    .grmc-slider-next {
        right: 8px;
    }

    .grmc-slider-dots {
        bottom: 16px;
        gap: 8px;
        padding: 8px 14px;
    }

    .grmc-slider-dot {
        width: 6px;
        height: 6px;
    }

    .grmc-slider-dot.active {
        width: 20px;
    }

    .grmc-effect-cards .grmc-slide {
        width: 92%;
        height: 92%;
        border-radius: 12px;
    }
}

/* ==================== Accessibility ==================== */

.grmc-slider:focus {
    outline: 3px solid var(--grmc-primary);
    outline-offset: 3px;
}

.grmc-slider-arrow:focus,
.grmc-slider-dot:focus {
    outline: 2px solid #ffffff;
    outline-offset: 3px;
}

.grmc-slider-arrow:focus-visible,
.grmc-slider-dot:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 3px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .grmc-slider *,
    .grmc-slider *::before,
    .grmc-slider *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .grmc-slide img {
        transform: scale(1) !important;
    }

    .grmc-slider-dot.active::after {
        display: none;
    }
}

/* ==================== Print ==================== */

@media print {
    .grmc-slider {
        height: auto;
        background: transparent;
    }

    .grmc-slider::before {
        display: none;
    }

    .grmc-slide {
        position: relative !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        page-break-inside: avoid;
    }

    .grmc-slider-arrow,
    .grmc-slider-dots {
        display: none;
    }
}

/* ==================== Dark Mode Support ==================== */

@media (prefers-color-scheme: dark) {
    .grmc-slider-arrow {
        background: rgba(30, 30, 30, 0.9);
        color: #ffffff;
    }

    .grmc-slider-arrow:hover {
        background: rgba(50, 50, 50, 0.95);
    }

    .grmc-slider-dots {
        background: rgba(0, 0, 0, 0.3);
    }
}