:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #2c3e50;
    --text-light: #ecf0f1;
    --text-dark: #34495e;
    --bg-light: #ffffff;
    --bg-grey: #f9f9f9;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.7;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.section-title p {
    font-size: 1.1rem;
    color: #777;
}

/* --- Navbar --- */
.navbar {
    background: var(--bg-light);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

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

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--bg-light);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-dark);
}

/* --- Hero Section --- */
.hero {
    padding-top: 120px;
    padding-bottom: 60px;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.hero-text p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.hero-text .availability {
    font-size: 0.9rem;
    color: #777;
    margin-top: 1rem;
}

.hero-image img {
    max-width: 80%;
    display: block;
    margin: 0 auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* --- Features Section --- */
.features {
    padding: 60px 0;
    background-color: var(--bg-grey);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-light);
    padding: 2.5rem 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 25px rgba(0,0,0,0.1);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

/* --- Screenshots Section --- */
.screenshots {
    padding: 60px 0;
}

.screenshot-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.screenshot-gallery img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.screenshot-gallery img:hover {
    transform: scale(1.05);
}

/* --- Footer --- */
.footer {
    background-color: var(--secondary-color);
    color: var(--text-light);
    padding-top: 4rem;
}

.footer-content {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.social-links a {
    color: var(--text-light);
    font-size: 1.5rem;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    padding: 1.5rem 0;
    border-top: 1px solid #4a627a;
    text-align: center;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: var(--text-light);
    text-decoration: underline;
}

/* --- Responsive --- */
@media (max-width: 992px) {
    .grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        grid-row: 1;
        margin-bottom: 2rem;
    }

    .hero-text {
        text-align: center;
    }

    .screenshot-gallery {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px; /* Match navbar height */
        flex-direction: column;
        background-color: var(--bg-light);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        padding: 1rem 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-text h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 576px) {
    .screenshot-gallery {
        grid-template-columns: 1fr;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }
}

/* --- Privacy Policy Page --- */
.privacy-policy {
    padding: 100px 0 60px 0;
    background-color: var(--bg-grey);
}

.privacy-policy .container {
    max-width: 800px;
    background-color: var(--bg-light);
    padding: 3rem 4rem;
    border-radius: 10px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.1);
}

.privacy-policy h1 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.privacy-policy p,
.privacy-policy li {
    font-size: 1rem;
    line-height: 1.8;
    color: #555;
}

.privacy-policy h2 {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.privacy-policy ul {
    list-style-position: inside;
    padding-left: 1rem;
    margin-bottom: 1rem;
}

.privacy-policy a {
    font-weight: 600;
}

@media (max-width: 768px) {
    .privacy-policy .container {
        padding: 2rem;
    }
}