@import url('https://fonts.googleapis.com/css2?family=Manjari:wght@100;400;700&display=swap');

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

body {
    font-family: 'Manjari', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    background-color: #FFF7F7;
}

#bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("img/bg.png") no-repeat center center fixed;
    background-size: cover;
    z-index: -1;
}

header {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80vw;
    max-width: 900px;
    height: 70px;
    margin-top: 20px;
    background: rgba(96, 87, 87, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 999px;
    border: 1px solid white;
    text-align: center;
    color: white;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    position: absolute;
    left: 20px;
    z-index: 1001;
}

.hamburger-menu .bar {
    width: 100%;
    height: 3px;
    background-color: black;
    border-radius: 3px;
    transition: all 0.3s ease-in-out;
}

header nav {
    font-family: 'Manjari', sans-serif;
}

header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5rem;
    padding-top: 0.2em;
}

header nav ul li a {
    color: black;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    padding: 1.2em 0.5em;
    border-radius: 999px;
    transition: background 0.6s, color 0.6s;
}

header nav ul li a:hover {
    color: #443f3f;
}

#home, #caelum, #features, #about, #contact {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    font-family: 'Manjari', sans-serif;
    padding: 120px 0 80px 0;
}

#home {
    height: 100vh;
    padding: 0;
}

.hero-container {
    height: 100vh;
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-container {
    position: absolute;
    width: 50%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    left: 50%;
}

.hero-image {
    max-width: 90%;
    max-height: 70%;
    object-fit: contain;
    transform: scale(0.9);
}

.download-container {
    position: absolute;
    left: 10%;
    width: 40%;
    opacity: 1;
}

.download-now {
    padding: 2rem;
    font-size: 1.2rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.download-now h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.download-now p {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.download-now .subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.download-button {
    background-image: url("img/download.png");
    background-size: cover;
    display: inline-block;
    color: white;
    width: 10.2rem;
    height: 3rem;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}


.content-container {
    max-width: 1200px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    margin: 2rem auto 0;
    padding: 3rem 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.content-container h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
    font-weight: 700;
}

.intro-text {
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #555;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.highlight-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.highlight-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.highlight-item p {
    color: #666;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.8);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #2c3e50;
    font-weight: 700;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #555;
}

.about-content h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
    color: #2c3e50;
}

.about-content ul {
    list-style: none;
    padding-left: 0;
}

.about-content li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
}

.about-content li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #4a90e2;
    font-weight: bold;
}

.about-content li strong {
    color: #2c3e50;
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.contact-content > p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    color: #555;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-item {
    background: rgba(255, 255, 255, 0.8);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.contact-item p {
    margin-bottom: 1rem;
    color: #666;
}

.contact-item a {
    color: #4a90e2;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
}

.contact-item a:hover {
    text-decoration: underline;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 1400px) {
    .content-container {
        max-width: 1400px;
        padding: 4rem 3rem;
    }

    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    header {
        width: 90vw;
        height: 60px;
    }

    header nav ul {
        gap: 1.2rem;
    }

    header nav ul li a {
        font-size: 0.95rem;
        padding: 1em 0.4em;
    }


    .download-now {
        max-width: 500px;
        text-align: center;
    }

    .content-container {
        margin: 1rem;
        padding: 2.5rem 2rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .highlights {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger-menu {
        display: flex;
    }

    header nav.nav-menu {
        position: absolute;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        transition: left 0.3s ease-in-out;
        z-index: 1000;
        display: flex;
        flex-direction: column;
        justify-content: center;
        border-right: 1px solid rgba(0, 0, 0, 0.1);
    }

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

    header nav.nav-menu ul {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    header nav.nav-menu ul li a {
        font-size: 1.1rem;
        padding: 0.5em 1em;
    }

    .hamburger-menu.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

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

    .hamburger-menu.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    header {
        background: transparent;
        border: none;
        width: 100vw;
        height: 55px;
        margin-top: 0;
        backdrop-filter: blur(0px);
        -webkit-backdrop-filter: blur(0px);
    }

    header nav ul {
        gap: 0.8rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    header nav ul li a {
        font-size: 0.85rem;
        padding: 0.8em 0.3em;
    }

    #home, #caelum, #features, #about, #contact {
        padding: 100px 0 60px 0;
        min-height: 0;
    }

    .hero-container {
        flex-direction: column;
        padding: 0 1rem;
    }

    .download-container {
        position: relative;
        left: 0;
        width: 100%;
        order: 1;
        display: flex;
        justify-content: center;
    }

    .image-container {
        position: relative;
        left: 0;
        height: 60%;
        order: 2;
    }

    .download-now {
        padding: 1.5rem;
        font-size: 1rem;
    }

    .download-now h2 {
        font-size: 2.2rem;
    }

    .download-now p {
        font-size: 1.1rem;
    }

    .download-now .subtitle {
        font-size: 0.9rem;
    }

    .content-container {
        margin: 0.5rem;
        padding: 2rem 1.5rem;
    }

    .content-container h2 {
        font-size: 2rem;
    }

    .intro-text {
        font-size: 1.1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .highlights {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .contact-methods {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .highlight-item {
        padding: 1.5rem;
    }

    .contact-item {
        padding: 1.5rem;
    }
    #bg {
        background: url("img/bg-mobile.png") no-repeat center center fixed;
        background-size: cover;
    }
}

@media (max-width: 480px) {
    header {
        width: 98vw;
        height: 50px;
        margin-top: 10px;
    }

    header nav ul {
        gap: 0.5rem;
    }

    header nav ul li a {
        font-size: 0.75rem;
        padding: 0.6em 0.2em;
    }

    #home, #caelum, #features, #about, #contact {
        padding: 80px 0 40px 0;
    }

    .hero-container {
        padding: 0 0.5rem;
    }

    .download-now {
        padding: 1.2rem;
        font-size: 0.9rem;
    }

    .download-now h2 {
        font-size: 1.8rem;
        margin-bottom: 0.8rem;
    }

    .download-now p {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }

    .download-now .subtitle {
        font-size: 0.8rem;
        margin-bottom: 1.5rem;
    }

    .download-button {
        padding: 12px 24px;
        font-size: 1rem;
    }

    .content-container {
        margin: 0.25rem;
        padding: 1.5rem 1rem;
    }

    .content-container h2 {
        font-size: 1.6rem;
        margin-bottom: 1.5rem;
    }

    .intro-text {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .feature-card, .highlight-item, .contact-item {
        padding: 1.2rem;
    }

    .feature-icon {
        font-size: 2.5rem;
    }

    .feature-card h3, .highlight-item h3, .contact-item h3 {
        font-size: 1.2rem;
    }

    .feature-card p, .highlight-item p, .contact-item p {
        font-size: 0.95rem;
    }

    .about-content p {
        font-size: 1rem;
    }

    .about-content h3 {
        font-size: 1.3rem;
    }

    .about-content li {
        font-size: 0.95rem;
    }
}

@media (max-width: 360px) {
    header nav ul li a {
        font-size: 0.7rem;
        padding: 0.5em 0.1em;
    }

    .download-now h2 {
        font-size: 1.5rem;
    }

    .content-container h2 {
        font-size: 1.4rem;
    }

    .features-grid, .highlights, .contact-methods {
        gap: 1rem;
    }
}