/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 5px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    gap: 4px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.hero-button-container {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--highlight-color) 0%, #d6335f 100%);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.4);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(233, 69, 96, 0.6);
    background: linear-gradient(135deg, #d6335f 0%, var(--highlight-color) 100%);
}

.cta-button:active {
    transform: translateY(-1px);
}

.cta-button-play {
    background: linear-gradient(135deg, #00e676 0%, #00c853 50%, #00a843 100%);
    color: #fff;
    font-size: 1.25rem;
    padding: 1.1rem 2.75rem;
    box-shadow: 0 4px 20px rgba(0, 230, 118, 0.5), 0 0 30px rgba(0, 200, 83, 0.3);
    animation: play-pulse 2s ease-in-out infinite;
}

.cta-button-play:hover {
    background: linear-gradient(135deg, #00c853 0%, #00e676 50%, #00ff88 100%);
    box-shadow: 0 6px 25px rgba(0, 230, 118, 0.7), 0 0 40px rgba(0, 200, 83, 0.4);
    transform: translateY(-3px) scale(1.02);
}

.cta-button-play:active {
    transform: translateY(-1px);
}

@keyframes play-pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(0, 230, 118, 0.5), 0 0 30px rgba(0, 200, 83, 0.3); }
    50% { box-shadow: 0 4px 25px rgba(0, 230, 118, 0.7), 0 0 45px rgba(0, 200, 83, 0.4); }
}

/* Main Content */
.main-content {
    padding: 60px 0;
}

.section {
    padding: 60px 0;
}

.section-alt {
    background-color: var(--bg-light);
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--highlight-color), var(--accent-color));
    border-radius: 2px;
}

.content-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    text-align: justify;
}

.main-link {
    color: var(--highlight-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.main-link:hover {
    color: var(--accent-color);
    border-bottom-color: var(--highlight-color);
}

/* Features Box */
.features-box,
.license-box,
.privacy-box,
.conclusion-box,
.faq-box,
.faq-content {
    background: var(--white);
    border-left: 4px solid var(--highlight-color);
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.features-box h3,
.license-box h3,
.privacy-box h3,
.conclusion-box h3,
.faq-box h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.features-list,
.privacy-list,
.conclusion-list,
.faq-list {
    list-style: none;
    padding-left: 0;
}

.features-list li,
.privacy-list li,
.conclusion-list li,
.faq-list li {
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: var(--bg-light);
    border-radius: 6px;
    position: relative;
    padding-left: 2.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.features-list li:hover,
.privacy-list li:hover,
.conclusion-list li:hover,
.faq-list li:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.features-list li::before,
.privacy-list li::before,
.conclusion-list li::before,
.faq-list li::before {
    content: '✓';
    position: absolute;
    left: 0.75rem;
    color: var(--highlight-color);
    font-weight: bold;
    font-size: 1.2rem;
}

/* License List */
.license-list {
    list-style: none;
    padding-left: 0;
}

.license-list li {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--white) 0%, var(--bg-light) 100%);
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.license-list li:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.license-list li strong {
    display: block;
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.license-list li p {
    color: var(--text-light);
    margin: 0;
}

/* Security Grid */
.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.security-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid var(--highlight-color);
}

.security-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

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

.security-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.security-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    margin: 0.5rem 0;
}

.footer-disclaimer {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--primary-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 0;
    }

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

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

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .security-grid {
        grid-template-columns: 1fr;
    }

    .content-text {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 50px 0;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .features-box,
    .license-box,
    .privacy-box,
    .conclusion-box,
    .faq-box {
        padding: 1.5rem;
    }
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.6s ease-out;
}