:root {
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #ffbe0b;
    --dark-color: #292f36;
    --light-color: #f7f7f7;
    --gray-color: #8d99ae;
    --success-color: #2ecc71;
    --error-color: #e74c3c;
    --transition: all 0.3s ease;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 30px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
}

.primary-btn:hover {
    background-color: #ff5252;
}

.secondary-btn {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 10px;
}

.section-header p {
    color: var(--gray-color);
    font-size: 1.1rem;
}

/* Header and Navigation */
header {
    position: relative;
    height: 100vh;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1) 0%, rgba(78, 205, 196, 0.1) 100%);
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.2) 0%, rgba(255, 107, 107, 0) 70%);
    z-index: 0;
}

header::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(78, 205, 196, 0.2) 0%, rgba(78, 205, 196, 0) 70%);
    z-index: 0;
}

nav {
    position: fixed;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: var(--transition);
    background-color: transparent;
}

nav.scrolled {
    background-color: white;
    box-shadow: var(--shadow);
    padding: 15px 0;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
    z-index: 1;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.nav-links {
    display: flex;
    gap: 25px;
    z-index: 1;
}

.nav-links li a {
    font-weight: 500;
    position: relative;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links li a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1;
}

/* Hero Section */
.hero {
    height: 100%;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    animation: float 6s ease-in-out infinite;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.1));
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.feature-card .icon {
    width: 70px;
    height: 70px;
    background-color: rgba(255, 107, 107, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--primary-color);
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.feature-card p {
    color: var(--gray-color);
}

/* How To Use Section */
.how-to-use {
    padding: 100px 0;
    background-color: var(--light-color);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 50px;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50px;
    left: 25px;
    width: 2px;
    height: calc(100% + 30px);
    background-color: rgba(141, 153, 174, 0.3);
    z-index: 0;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.2rem;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.step-content h3 {
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.step-content p {
    color: var(--gray-color);
}

/* Screenshots Section */
.screenshots {
    padding: 100px 0;
    background-color: white;
    position: relative;
    overflow: hidden;
}

.screenshots::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.05) 0%, rgba(78, 205, 196, 0.05) 100%);
    z-index: 0;
}

.screenshot-slider {
    display: flex;
    gap: 30px;
    margin: 0 auto;
    max-width: 1000px;
    overflow-x: auto;
    padding: 20px 0;
    scrollbar-width: none;
    position: relative;
    z-index: 1;
}

.screenshot-slider::-webkit-scrollbar {
    display: none;
}

.screenshot {
    flex: 0 0 auto;
    width: 230px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.screenshot:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.slider-controls button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: white;
    border: none;
    box-shadow: var(--shadow);
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--dark-color);
    transition: var(--transition);
}

.slider-controls button:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.download-content {
    max-width: 700px;
    margin: 0 auto;
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.download-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.app-store-btn {
    display: inline-block;
    transition: var(--transition);
}

.app-store-btn:hover {
    transform: scale(1.05);
}

.app-store-btn img {
    height: 60px;
}

.coming-soon {
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Support Section */
.support {
    padding: 100px 0;
    background-color: var(--light-color);
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.option {
    background-color: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.option:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.option .icon {
    width: 70px;
    height: 70px;
    background-color: rgba(255, 107, 107, 0.1);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
}

.option h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.option p {
    color: var(--gray-color);
    margin-bottom: 20px;
}

.option a {
    color: var(--primary-color);
    font-weight: 500;
}

.option a:hover {
    color: var(--secondary-color);
}

/* Footer */
footer {
    padding: 60px 0;
    background-color: var(--dark-color);
    color: white;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 15px;
}

.footer-logo p {
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
}

.link-group h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.link-group ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.link-group ul li a {
    opacity: 0.7;
    transition: var(--transition);
}

.link-group ul li a:hover {
    opacity: 1;
    color: var(--primary-color);
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        margin-bottom: 60px;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .hero-image {
        justify-content: center;
    }
    
    .step {
        flex-direction: column;
        gap: 15px;
        align-items: center;
        text-align: center;
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        height: 100vh;
        background-color: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        z-index: 99;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .features, .how-to-use, .screenshots, .download, .support {
        padding: 60px 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        gap: 30px;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
    }
    
    .option {
        padding: 30px 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scale {
    from {
        transform: scale(0.8);
    }
    to {
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.animate-fade {
    animation: fadeIn 1s ease forwards;
}

.animate-scale {
    animation: scale 0.5s ease forwards;
}

.animate-bounce {
    animation: bounce 2s infinite;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader .spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(255, 107, 107, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

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

/* Scroll to top button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    z-index: 90;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}