:root {
    --color-green: #10a37f;
    --color-blue: #3498db;
    --color-red: #e74c3c;
    --color-white: #ffffff;
    --color-dark: #2c3e50;
    --sb-track-color: #ffffff;
    --sb-thumb-color: #13a184;
    --sb-size: 15px;
}


body::-webkit-scrollbar {
    width: var(--sb-size);
}

body::-webkit-scrollbar-track {
    background: var(--sb-track-color);
    border-radius: 5px;
}

body::-webkit-scrollbar-thumb {
    background: var(--color-green);
}

@supports not selector(::-webkit-scrollbar) {
    body {
        scrollbar-color: var(--color-green) var(--sb-track-color);
    }
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-green), var(--color-blue), var(--color-red));
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

header {
    background-color: rgba(16, 163, 127, 0.9);
    padding: 1rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--color-white);
    font-weight: 700;
    font-size: 1.5rem;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.8;
}

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

.logo-text {
    display: inline-block;
}

nav {
    display: flex;
    align-items: center;
}

#about {
    a {
        color: #2afeb7;
    }
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin-left: 1rem;
}

.nav-links a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.nav-links a:hover,
.nav-links a:focus {
    background-color: rgba(255, 255, 255, 0.2);
    outline: none;
}

main {
    padding-top: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

iframe {
    border-radius: 15px;
}

section {
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1,
h2,
h3 {
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    text-align: center;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
}

p {
    margin-bottom: 1rem;
}

#hero {
    text-align: center;
    padding-top: 2rem;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
    margin-top: 2rem;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

.feature-card {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.social-links a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

footer {
    text-align: center;
    padding: 2rem;
    background-color: rgba(16, 163, 127, 0.9);
}

.download-btn {
    margin-top: 30px;
    display: inline-block;
    padding: 12px 24px;
    color: #fff;
    background: linear-gradient(45deg, #6a11cb, #2575fc);
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.download-btn:hover {
    background: linear-gradient(45deg, #2575fc, #6a11cb);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(-3px);
}

.download-btn:active {
    transform: translateY(1px);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    main {
        padding-top: 130px;
    }

    .header-container {
        flex-direction: column;
        align-items: center;
    }

    .logo {
        margin-bottom: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-links li {
        margin: 0.5rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .logo-text {
        display: none;
    }

    .nav-links a {
        padding: 0.5rem;
    }
}