/* ===== CSS Variables ===== */
:root {
    --primary: #000000;
    --secondary: #36455b;
    --dark: #36455b;
    --light: #F5F5F7;
    --accent: #f9ff00;
}

/* ===== Base Styles ===== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.7;
}

/* ===== Reusable Components ===== */
.btn {
    display: inline-block;
    background: var(--accent);
    color: var(--dark);
    padding: 12px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    margin-left: 15px;
}

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

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--dark);
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    width: 50%;
    height: 4px;
    background: var(--primary);
    bottom: -10px;
    left: 25%;
    border-radius: 2px;
}

/* ===== Header & Navigation ===== */
header {
    background: var(--dark);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
}

.logo span {
    color: var(--light);
}

/* Desktop Navigation */
.desktop-nav ul {
    display: flex;
    list-style: none;
}

.desktop-nav ul li {
    margin-left: 30px;
}

.desktop-nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.desktop-nav ul li a:hover {
    color: var(--accent);
}

.desktop-nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--accent);
    bottom: -5px;
    left: 0;
    transition: width 0.3s;
}

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

/* Mobile Menu Button */
.menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100%;
    background: var(--dark);
    z-index: 1000;
    transition: right 0.3s ease;
    overflow-y: auto;
    padding: 20px;
    box-shadow: -5px 0 15px rgba(0,0,0,0.2);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu ul {
    list-style: none;
    margin-top: 50px;
}

.mobile-menu ul li {
    margin-bottom: 20px;
}

.mobile-menu ul li a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
    display: block;
    padding: 10px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.mobile-menu ul li a:hover {
    background: rgba(255,255,255,0.1);
    color: var(--accent);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* ===== Features Section ===== */
.features {
    padding: 5rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 21px;
    margin-bottom: 15px;
    color: var(--dark);
}

/* ===== Download Section ===== */
.download {
    background: var(--dark);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.download-box {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 3rem;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.download-box h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.version-info {
    background: rgba(0,0,0,0.2);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 2rem;
    display: inline-block;
}

.download-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.download-btn {
    background: var(--accent);
    color: var(--dark);
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.download-btn i {
    font-size: 1.2rem;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

/* ===== Screenshots Section ===== */
.screenshots {
    padding: 5rem 0;
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.screenshot {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
}

.screenshot:hover {
    transform: scale(1.03);
}

.screenshot img {
    width: 100%;
    height: auto;
    display: block;
}

/* ===== How To Section ===== */
.how-to {
    padding: 0;
    background: #f5f5f5;
}

.steps-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.step {
    display: flex;
    margin-bottom: 30px;
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    align-items: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-right: 25px;
}

.step-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark);
}

/* ===== FAQ Section ===== */
.faq {
    padding: 5rem 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.faq-question {
    background: white;
    padding: 20px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-answer {
    background: #f8f9fa;
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer.active {
    padding: 20px;
    max-height: 500px;
}

/* ===== Footer ===== */
footer {
    background: var(--dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-col h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #ddd;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    color: white;
    background: rgba(255,255,255,0.1);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-links a:hover {
    background: var(--accent);
    color: var(--dark);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

.disclaimer {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    max-width: 800px;
    margin: 2rem auto 0;
    font-size: 0.8rem;
    border-radius: 8px;
    text-align: center;
    line-height: 1.6;
}

/* ===== Responsive Styles ===== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
    }
    
    .desktop-nav ul {
        margin-top: 20px;
    }
    
    .desktop-nav ul li {
        margin-left: 15px;
        margin-right: 15px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .btn-group {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    
    .btn-secondary {
        margin-left: 0;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .desktop-nav {
        display: none;
    }
    
    .menu-btn {
        display: block;
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .feature-card h3 {
        font-size: 17px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
    }
    
    .feature-card p {
        font-size: 12px;
    }
    
    .feature-card {
        padding: 15px;
    }
    
    .section-title h2 {
        font-size: 30px;
    }
    
    .features {
        padding: 3rem 0;
    }
    
    .download-box {
        background: #36455b;
    }
    
    .download {
        background: transparent;
        padding: 0;
    }
}