body::-webkit-scrollbar {
    display: none;
}

html {
    scrollbar-width: thin;
    scrollbar-color: #ffffff #000000;
    scroll-behavior: smooth;
}

::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

::-webkit-scrollbar-track {
    background: #000000;
    border-left: 1px solid #ffffff;
}

::-webkit-scrollbar-thumb {
    background-color: #ffffff;
    border-radius: 0;
    border: 3px solid #000000;
    transition: background-color 0.3s;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #ffffff;
}

:root {
    --bg-color: #000000;
    --card-bg: #111111;
    --text-color: #f0f0f0;
    --primary-color: #FF007F;
    --secondary-color: #00FFFF;
    --glow-color: #FF77A9; 
    --shadow-color: rgba(255, 0, 127, 0.4); 
    --header-bg: #000000;
    --link-color: #aaaaaa;
    --border-color: #333333;
}

[data-theme="light"] {
    --bg-color: #ffffff;
    --card-bg: #f4f4f4;
    --text-color: #111111;
    --primary-color: #CC0066;
    --secondary-color: #009999;
    --glow-color: #E63399;
    --shadow-color: rgba(0, 0, 0, 0.2);
    --header-bg: #ffffff;
    --link-color: #555555;
    --border-color: #cccccc;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.4s, color 0.4s;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.background-banner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../assets/images/background.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    transition: opacity 0.4s;
}

[data-theme="light"] .background-banner {
    opacity: 0.05;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s;
}

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

.main-header {
    background-color: var(--header-bg);
    padding: 20px 40px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 10;
}

.logo {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--primary-color);
    text-shadow: 0 0 8px var(--shadow-color);
    letter-spacing: 1px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
}

.main-nav a {
    color: var(--text-color);
    font-weight: 600;
    padding: 5px 0;
    position: relative;
    opacity: 0.9;
    transition: color 0.3s;
}

.main-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease-out;
}

.main-nav a:hover {
    color: var(--primary-color);
    opacity: 1;
}

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

#theme-toggle {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--primary-color);
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2em;
    transition: background-color 0.3s, border-color 0.3s, transform 0.2s, color 0.3s;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

#theme-toggle svg {
    width: 20px;
    height: 20px;
}

#theme-toggle:hover {
    border-color: var(--glow-color);
    background-color: var(--border-color);
    color: var(--glow-color);
    box-shadow: 0 0 10px var(--shadow-color);
}

#moon-icon { display: none; }
[data-theme="light"] #sun-icon { display: none; }
[data-theme="light"] #moon-icon { display: block; }

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

.download-section {
    padding: 60px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 5;
}

.card {
    background-color: var(--card-bg);
    padding: 50px 40px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
    border: 1px solid var(--border-color);
    max-width: 500px;
    width: 100%;
    text-align: center;
    transition: all 0.4s ease, background-color 0.4s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-color), 0 0 15px var(--primary-color);
}

.tag {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--bg-color);
    font-size: 0.8em;
    font-weight: 700;
    padding: 5px 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    border: 1px solid var(--primary-color);
}

.card h2 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 2.2em;
    text-shadow: 0 0 3px var(--shadow-color);
}

.card p {
    margin-bottom: 35px;
    color: var(--text-color);
    opacity: 0.8;
}

.download-btn {
    background-color: var(--primary-color);
    color: var(--bg-color);
    border: none;
    padding: 15px 35px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease, box-shadow 0.3s;
    width: 100%;
    text-transform: uppercase;
    box-shadow: 0 5px 20px var(--shadow-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.download-btn svg {
    width: 20px;
    height: 20px;
    stroke: var(--bg-color);
}

.download-btn:hover {
    background-color: var(--glow-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--glow-color);
}

.download-btn:active {
    transform: scale(0.98);
    box-shadow: none;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0px var(--shadow-color);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(255, 0, 127, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 0, 127, 0);
    }
}

.support-info {
    margin-top: 25px;
    font-size: 0.9em;
    color: var(--text-color);
    opacity: 0.7;
}

.small-note {
    margin-top: 5px;
    font-size: 0.8em;
}

hr {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), var(--border-color), rgba(0, 0, 0, 0));
    margin: 40px 0;
}

.feature-section {
    text-align: center;
    padding: 40px 0;
}

.feature-section h2 {
    font-size: 2em;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.feature-section .subtitle {
    opacity: 0.9;
    margin-bottom: 40px;
    font-size: 1.1em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: left;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, border-color 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(255, 0, 127, 0.1);
}

.icon-box {
    color: var(--secondary-color);
    margin-bottom: 15px;
    display: inline-block;
    padding: 10px;
    border-radius: 6px;
    background-color: rgba(0, 255, 255, 0.1);
}

.icon-box svg {
    width: 32px;
    height: 32px;
    stroke-width: 2.5;
}

.feature-card h3 {
    font-size: 1.4em;
    margin-bottom: 10px;
    color: var(--text-color);
}

.feature-card p {
    font-size: 0.9em;
    opacity: 0.7;
    margin-bottom: 0;
}

.faq-section {
    padding: 40px 0;
    text-align: center;
}

.faq-section h2 {
    font-size: 2em;
    margin-bottom: 40px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    padding: 20px;
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s;
}

.faq-item:hover {
    background-color: var(--border-color);
    border-color: var(--primary-color);
}

.faq-item.active .faq-question {
    color: var(--primary-color);
}

.faq-question {
    font-size: 1.1em;
    font-weight: 600;
    margin: 0;
    color: var(--text-color);
}

.faq-answer {
    font-size: 0.9em;
    margin-top: 0;
    opacity: 0.8;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, margin-top 0.4s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 200px; 
    margin-top: 15px;
}

.support-contact {
    margin-top: 40px;
    font-size: 1em;
    opacity: 0.9;
}

.main-footer {
    background-color: var(--header-bg);
    text-align: center;
    padding: 15px;
    border-top: 1px solid var(--border-color);
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.9em;
    width: 100%;
    position: relative;
    z-index: 10;
    margin-top: auto;
}