/**
 * Refinery Slider - Base Styles
 *
 * @package RefinerySlider
 */

/* Slider Container */
.refinery-slider {
	position: relative;
	width: 100%;
	max-width: 1200px;
	margin: 0 auto;
	overflow: hidden;
	background: #000;
}

/* Slider Track */
.refinery-slider__track {
	position: relative;
	width: 100%;
	height: 600px;
	display: flex;
}

/* Individual Slide */
.refinery-slider__slide {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	transition: opacity 0.8s ease-in-out;
	z-index: 1;
}

.refinery-slider__slide.is-active {
	opacity: 1;
	z-index: 2;
}

.refinery-slider__slide.is-previous {
	opacity: 0;
	z-index: 1;
}

/* Show first slide immediately on page load (before JS initializes) */
.refinery-slider:not(.is-initialized) .refinery-slider__slide:first-child {
	opacity: 1;
	transition: none;
}

/* Background Layer */
.refinery-slider__background {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 1;
}

.refinery-slider__image {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center;
	display: block;
}

/* Video Background */
.refinery-slider__video {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 1;
}

.refinery-slider__video iframe,
.refinery-slider__video video {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 100vw;
	height: 56.25vw; /* 16:9 aspect ratio */
	min-height: 100vh;
	min-width: 177.77vh; /* 16:9 aspect ratio */
	transform: translate(-50%, -50%);
	object-fit: cover;
}

.refinery-slider__video-fallback {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 0;
}

/* Content Layer */
.refinery-slider__content {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 10;
	padding: 40px 20px;
	background: rgba(0, 0, 0, 0.35);
}

.refinery-slider__content-inner {
	max-width: 800px;
	text-align: center;
	color: #fff;
	text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Heading */
.refinery-slider__heading {
	font-size: 3rem;
	font-weight: 700;
	line-height: 1.2;
	margin: 0 0 1rem;
	color: #fff;
}

/* Subheading */
.refinery-slider__subheading {
	font-size: 1.25rem;
	line-height: 1.6;
	margin: 0 0 2rem;
	color: #fff;
}

/* Buttons */
.refinery-slider__buttons {
	display: flex;
	gap: 1rem;
	justify-content: center;
	flex-wrap: wrap;
}

.refinery-slider__button {
	display: inline-block;
	padding: 0.875rem 2rem;
	font-size: 1rem;
	font-weight: 600;
	text-decoration: none;
	border-radius: 4px;
	transition: all 0.3s ease;
	cursor: pointer;
	border: 2px solid transparent;
}

.refinery-slider__button--primary {
	background: #ECA651;
	color: #000;
	border-color: #ECA651;
}

.refinery-slider__button--primary:hover {
	background: #C45424;
	border-color: #C45424;
	color: #fff;
	transform: translateY(-2px);
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.refinery-slider__button--secondary {
	background: transparent;
	color: #fff;
	border-color: #fff;
}

.refinery-slider__button--secondary:hover {
	background: #fff;
	color: #000;
	transform: translateY(-2px);
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Navigation Dots */
.refinery-slider__dots {
	position: absolute;
	bottom: 30px;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	gap: 12px;
	z-index: 20;
	padding: 10px 20px;
	background: rgba(0, 0, 0, 0.3);
	border-radius: 50px;
	backdrop-filter: blur(10px);
}

.refinery-slider__dot {
	width: 12px;
	height: 12px;
	padding: 0;
	background: rgba(255, 255, 255, 0.5);
	border: none;
	border-radius: 50%;
	cursor: pointer;
	transition: all 0.3s ease;
}

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

.refinery-slider__dot.is-active {
	background: #fff;
	width: 32px;
	border-radius: 6px;
}

.refinery-slider__dot:focus {
	outline: 2px solid #ECA651;
	outline-offset: 2px;
}

/* Screen reader only text */
.screen-reader-text {
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	width: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	word-wrap: normal;
}

/* Responsive Styles */
@media screen and (max-width: 768px) {
	.refinery-slider__track {
		height: 500px;
	}

	.refinery-slider__heading {
		font-size: 2rem;
	}

	.refinery-slider__subheading {
		font-size: 1rem;
	}

	.refinery-slider__button {
		padding: 0.75rem 1.5rem;
		font-size: 0.875rem;
	}

	.refinery-slider__dots {
		bottom: 20px;
		gap: 8px;
	}

	.refinery-slider__dot {
		width: 10px;
		height: 10px;
	}

	.refinery-slider__dot.is-active {
		width: 24px;
	}
}

@media screen and (max-width: 480px) {
	.refinery-slider__track {
		height: 400px;
	}

	.refinery-slider__heading {
		font-size: 1.5rem;
	}

	.refinery-slider__subheading {
		font-size: 0.875rem;
		margin-bottom: 1.5rem;
	}

	.refinery-slider__buttons {
		flex-direction: column;
		gap: 0.75rem;
	}

	.refinery-slider__button {
		width: 100%;
		text-align: center;
	}

	.refinery-slider__content {
		padding: 20px 15px;
	}
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
	.refinery-slider__slide,
	.refinery-slider__button,
	.refinery-slider__dot {
		transition: none;
	}
}

/* Loading State */
.refinery-slider.is-loading {
	min-height: 600px;
	background: #f0f0f0;
}

.refinery-slider.is-loading::before {
	content: "";
	position: absolute;
	top: 50%;
	left: 50%;
	width: 40px;
	height: 40px;
	margin: -20px 0 0 -20px;
	border: 4px solid #ddd;
	border-top-color: #ECA651;
	border-radius: 50%;
	animation: spin 1s linear infinite;
}

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