Car Specs Accordion Slider HTML

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="style.css">
    <script defer src="main.js"></script>
    <title>Document</title>
</head>
<body>
    <div class="slider-container">
	<div class="now-showing">Now in Showroom</div>

<div class="accordion-slider">
		<div class="slide" style="background-image: url('https://images.unsplash.com/photo-1617788138017-80ad40651399?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80')">
			<div class="slide-content">
				<div class="slide-number">01</div>
				<div class="car-brand">BMW M3</div>
				<div class="car-name">BMW M3 Competition</div>
				<div class="car-subtitle">Twin-Turbo Inline-6 Performance</div>
				<div class="car-specs">
					<div class="spec-row">
						<span class="spec-label">Engine:</span>
						<span class="spec-value">3.0L Twin-Turbo Inline-6</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Power:</span>
						<span class="spec-value">503 HP @ 6,250 RPM</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Torque:</span>
						<span class="spec-value">650 Nm @ 2,750 RPM</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Transmission:</span>
						<span class="spec-value">8-Speed Automatic</span>
					</div>
				</div>
				<div class="performance-badges">
					<div class="badge">
						<div class="badge-icon"></div>
						<span>0-100: 3.9s</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Top Speed: 290 km/h</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Price: $73,400</span>
					</div>
				</div>
			</div>
			<div class="add-button"></div>
		</div>

<div class="slide" style="background-image: url('https://images.unsplash.com/photo-1544636331-e26879cd4d9b?ixlib=rb-4.0.3&auto=format&fit=crop&w=1974&q=80')">
			<div class="slide-content">
				<div class="slide-number">02</div>
				<div class="car-brand">Lamborghini Huracán</div>
				<div class="car-name">Lamborghini Huracán</div>
				<div class="car-subtitle">Naturally Aspirated V10 Excellence</div>
				<div class="car-specs">
					<div class="spec-row">
						<span class="spec-label">Engine:</span>
						<span class="spec-value">5.2L V10 Naturally Aspirated</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Power:</span>
						<span class="spec-value">610 HP @ 8,250 RPM</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Torque:</span>
						<span class="spec-value">560 Nm @ 6,500 RPM</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Transmission:</span>
						<span class="spec-value">7-Speed Dual-Clutch</span>
					</div>
				</div>
				<div class="performance-badges">
					<div class="badge">
						<div class="badge-icon"></div>
						<span>0-100: 3.2s</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Top Speed: 325 km/h</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Price: $248,295</span>
					</div>
				</div>
			</div>
			<div class="add-button"></div>
		</div>

<div class="slide" style="background-image: url('https://images.unsplash.com/photo-1552519507-da3b142c6e3d?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80')">
			<div class="slide-content">
				<div class="slide-number">03</div>
				<div class="car-brand">Ferrari SF90</div>
				<div class="car-name">Ferrari SF90 Stradale</div>
				<div class="car-subtitle">Plug-in Hybrid Revolution</div>
				<div class="car-specs">
					<div class="spec-row">
						<span class="spec-label">Engine:</span>
						<span class="spec-value">4.0L V8 Twin-Turbo + Electric</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Power:</span>
						<span class="spec-value">1000 HP Combined</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Torque:</span>
						<span class="spec-value">800 Nm @ 6,000 RPM</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Transmission:</span>
						<span class="spec-value">8-Speed F1 DCT</span>
					</div>
				</div>
				<div class="performance-badges">
					<div class="badge">
						<div class="badge-icon"></div>
						<span>0-100: 2.5s</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Top Speed: 340 km/h</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Price: $625,000</span>
					</div>
				</div>
			</div>
			<div class="add-button"></div>
		</div>

<div class="slide" style="background-image: url('https://images.unsplash.com/photo-1563720223185-11003d516935?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80')">
			<div class="slide-content">
				<div class="slide-number">04</div>
				<div class="car-brand">Porsche 911</div>
				<div class="car-name">Porsche 911 Turbo S</div>
				<div class="car-subtitle">Twin-Turbo Flat-Six Perfection</div>
				<div class="car-specs">
					<div class="spec-row">
						<span class="spec-label">Engine:</span>
						<span class="spec-value">3.8L Twin-Turbo Flat-6</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Power:</span>
						<span class="spec-value">640 HP @ 6,750 RPM</span>
					</div>
					<div class="spec-row">
						<span class="spec-label">Torque:</span>
						<span class="spec-value">800 Nm @ 2,500 RPM</span>
					</div>
					<div class="spec-row">
						<span class="spec-row">
							<span class="spec-label">Transmission:</span>
							<span class="spec-value">8-Speed PDK</span>
					</div>
				</div>
				<div class="performance-badges">
					<div class="badge">
						<div class="badge-icon"></div>
						<span>0-100: 2.7s</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Top Speed: 330 km/h</span>
					</div>
					<div class="badge">
						<div class="badge-icon"></div>
						<span>Price: $207,000</span>
					</div>
				</div>
			</div>
			<div class="add-button"></div>
		</div>
	</div>

CSS

/* Copyright (c) 2025 by NIDAL (https://codepen.io/Nidal95/pen/xbwRYgV) */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
	background: #f0f2f5;
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
}

.slider-container {
	width: 100%;
	max-width: 1200px;
	height: 100vh;
	position: relative;
	overflow: hidden;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.now-showing {
	position: absolute;
	top: 20px;
	left: 20px;
	color: #9fff6b;
	font-size: 14px;
	font-weight: 600;
	display: flex;
	align-items: center;
	gap: 8px;
	z-index: 10;
}

.now-showing::before {
	content: "";
	width: 6px;
	height: 6px;
	background: #9fff6b;
	border-radius: 50%;
}

.accordion-slider {
	display: flex;
	height: 100%;
	position: relative;
}

.slide {
	flex: 1;
	position: relative;
	cursor: pointer;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
	overflow: hidden;
	filter: grayscale(1);
}

.slide:hover {
	filter: grayscale(0);
}

.slide.active {
	flex: 2.5;
	filter: grayscale(0);
}

.slide::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.8) 80%);
}

.slide-content {
	position: absolute;
	bottom: 30px;
	left: 30px;
	right: 30px;
	color: white;
	z-index: 2;
}

.slide.active .slide-content {
	bottom: 80px;
	transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
}

.slide-number {
	font-size: 64px;
	font-weight: 300;
	color: rgba(255, 255, 255, 0.6);
	line-height: 1;
	position: absolute;
	bottom: 30px;
	left: 30px;
	transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active .slide-number {
	bottom: auto;
	top: -50px;
	font-size: 48px;
	left: 0;
}

.car-brand {
	font-size: 16px;
	font-weight: 600;
	color: rgba(255, 255, 255, 0.8);
	margin-bottom: 5px;
	transform: rotate(-90deg);
	transform-origin: left bottom;
	position: absolute;
	bottom: 100px;
	left: 30px;
	white-space: nowrap;
	transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active .car-brand {
	transform: rotate(0deg);
	position: static;
	transform-origin: unset;
}

.car-name {
	font-size: 28px;
	font-weight: 700;
	margin-bottom: 8px;
	opacity: 0;
	transform: translateY(30px);
	transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
	transition-delay: 0s;
}

.slide.active .car-name {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0.3s;
}

.car-subtitle {
	font-size: 16px;
	color: rgba(255, 255, 255, 0.8);
	margin-bottom: 20px;
	opacity: 0;
	transform: translateY(30px);
	transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
	transition-delay: 0s;
}

.slide.active .car-subtitle {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0.4s;
}

.car-specs {
	opacity: 0;
	transform: translateY(30px);
	transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
	transition-delay: 0s;
}

.slide.active .car-specs {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0.5s;
}

.spec-row {
	display: flex;
	justify-content: space-between;
	margin-bottom: 6px;
	font-size: 14px;
	opacity: 0;
	transform: translateX(-20px);
	transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active .spec-row {
	opacity: 1;
	transform: translateX(0);
}

.slide.active .spec-row:nth-child(1) {
	transition-delay: 0.6s;
}
.slide.active .spec-row:nth-child(2) {
	transition-delay: 0.65s;
}
.slide.active .spec-row:nth-child(3) {
	transition-delay: 0.7s;
}
.slide.active .spec-row:nth-child(4) {
	transition-delay: 0.75s;
}

.spec-label {
	color: rgba(255, 255, 255, 0.7);
}

.spec-value {
	color: white;
	font-weight: 600;
}

.performance-badges {
	display: flex;
	gap: 12px;
	margin-top: 15px;
	opacity: 0;
	transform: translateY(30px);
	transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
	transition-delay: 0s;
}

.slide.active .performance-badges {
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0.8s;
}

.badge {
	display: flex;
	align-items: center;
	gap: 6px;
	padding: 4px 8px;
	background: rgba(255, 255, 255, 0.1);
	border-radius: 12px;
	font-size: 12px;
	font-weight: 500;
	opacity: 0;
	transform: scale(0.8);
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide.active .badge {
	opacity: 1;
	transform: scale(1);
}

.slide.active .badge:nth-child(1) {
	transition-delay: 0.85s;
}
.slide.active .badge:nth-child(2) {
	transition-delay: 0.9s;
}
.slide.active .badge:nth-child(3) {
	transition-delay: 0.95s;
}

.badge-icon {
	width: 8px;
	height: 8px;
	background: #9fff6b;
	border-radius: 50%;
}

.add-button {
	position: absolute;
	bottom: 30px;
	right: 30px;
	width: 32px;
	height: 32px;
	background: transparent;
	border: 2px solid #9fff6b;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: all 0.4s ease;
	z-index: 3;
}

.add-button::before,
.add-button::after {
	content: "";
	position: absolute;
	background: #9fff6b;
	transition: all 0.4s ease;
}

.add-button::before {
	width: 12px;
	height: 2px;
}

.add-button::after {
	width: 2px;
	height: 12px;
	transform: rotate(0deg);
}

.slide.active .add-button::before {
	transform: rotate(0deg);
}

.slide.active .add-button::after {
	opacity: 0;
	transform: scale(0);
}

.navigation-arrows {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 50px;
	height: 50px;
	background: rgba(255, 255, 255, 0.1);
	border: none;
	border-radius: 50%;
	color: white;
	cursor: pointer;
	font-size: 20px;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: all 0.3s ease;
	z-index: 4;
	backdrop-filter: blur(10px);
}

.nav-prev {
	left: 20px;
}

.nav-next {
	right: 20px;
}

.navigation-arrows:hover {
	background: rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
	.accordion-slider {
		flex-direction: column;
	}

.slide {
		flex: 1;
		min-height: 80px;
	}

.slide.active {
		flex: 2;
	}

.slide-number {
		font-size: 32px;
	}

.car-brand {
		transform: none;
		position: static;
	}
}

JS

class AccordionSlider {
	constructor() {
		this.slides = document.querySelectorAll(".slide");
		this.prevBtn = document.querySelector(".nav-prev");
		this.nextBtn = document.querySelector(".nav-next");
		this.currentIndex = -1;

this.init();
	}

init() {
		this.slides.forEach((slide, index) => {
			slide.addEventListener("click", () => this.setActiveSlide(index));
		});

this.prevBtn.addEventListener("click", () => this.previousSlide());
		this.nextBtn.addEventListener("click", () => this.nextSlide());

document.addEventListener("keydown", (e) => {
			if (e.key === "ArrowLeft") this.previousSlide();
			if (e.key === "ArrowRight") this.nextSlide();
		});
	}

setActiveSlide(index) {
		if (this.currentIndex === index) {
			this.slides.forEach((slide) => slide.classList.remove("active"));
			this.currentIndex = -1;
		} else {
			this.slides.forEach((slide) => slide.classList.remove("active"));
			this.slides[index].classList.add("active");
			this.currentIndex = index;
		}
	}

nextSlide() {
		const nextIndex =
			this.currentIndex === -1 ? 0 : (this.currentIndex + 1) % this.slides.length;
		this.setActiveSlide(nextIndex);
	}

previousSlide() {
		const prevIndex =
			this.currentIndex === -1
				? this.slides.length - 1
				: (this.currentIndex - 1 + this.slides.length) % this.slides.length;
		this.setActiveSlide(prevIndex);
	}
}

document.addEventListener("DOMContentLoaded", () => {
	new AccordionSlider();
});

Car Specs Accordion Slider HTML

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