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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #000;
    overflow-x: hidden;
}

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

/* Support Banner */
.support-banner {
    background: linear-gradient(135deg, #f7931a, #ff6b35);
    color: white;
    padding: 12px 0;
    text-align: center;
    position: relative;
    z-index: 1000;
}

.banner-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.banner-link {
    color: white;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.3s;
}

.banner-link:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.banner-close {
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    padding: 0 10px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.banner-close:hover {
    opacity: 1;
}

/* Header */
.header {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    transition: all 0.3s ease;
}

.header.with-banner {
    top: 48px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo-img {
    height: 40px;
    width: auto;
}

/* Navigation */
.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-list a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-list a:hover {
    color: #f7931a;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #f7931a;
    transition: width 0.3s;
}

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

/* Language Selector */
.language-selector {
    position: relative;
}

.lang-button {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.lang-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.flag-icon {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
}

.dropdown-arrow {
    font-size: 12px;
    transition: transform 0.3s;
}

.lang-button.active .dropdown-arrow {
    transform: rotate(180deg);
}

.lang-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    padding: 8px 0;
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
}

.lang-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    transition: background 0.3s;
}

.lang-option:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: white;
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    overflow: hidden;
}

.blockchain-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #f7931a, #ff6b35);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, #f7931a, #ff6b35);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(247, 147, 26, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-tertiary {
    background: transparent;
    color: #f7931a;
    border-color: #f7931a;
}

.btn-tertiary:hover {
    background: #f7931a;
    color: white;
    transform: translateY(-2px);
}

/* Video Button */
.video-btn {
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid #f7931a;
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
}

.video-btn:hover {
    background: #f7931a;
    transform: scale(1.05);
}

/* Sections */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 20px;
    color: white;
}

.section-header p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Warning Section */
.warning-section {
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
}

.warning-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.warning-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.warning-card:hover {
    transform: translateY(-5px);
    border-color: #f7931a;
    box-shadow: 0 10px 30px rgba(247, 147, 26, 0.2);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.warning-card h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.warning-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* Education Section */
.education-section {
    background: #111;
}

.education-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.education-text h3 {
    color: #f7931a;
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.education-text p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.education-list {
    list-style: none;
    color: rgba(255, 255, 255, 0.8);
}

.education-list li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.education-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #f7931a;
    font-weight: bold;
}

.bitcoin-logo-big {
    text-align: center;
}

.bitcoin-logo-big img {
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 0 20px rgba(247, 147, 26, 0.3));
}

/* Security Section */
.security-section {
    background: linear-gradient(135deg, #0a0a0a, #1a1a1a);
}

.security-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.tip-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s;
}

.tip-card:hover {
    transform: translateY(-5px);
    border-color: #f7931a;
    background: rgba(247, 147, 26, 0.05);
}

.tip-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.tip-card h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.tip-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* About Section */
.about-section {
    background: #111;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    color: #f7931a;
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.about-text p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.creator-photo {
    width: 100%;
    max-width: 300px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* Donation Section */
.donate-section {
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
}

.donation-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.donation-text h3 {
    color: #f7931a;
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.donation-text p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.bitcoin-address h4 {
    color: white;
    margin-bottom: 15px;
}

.address-container {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.btc-address {
    background: rgba(255, 255, 255, 0.1);
    padding: 10px 15px;
    border-radius: 6px;
    color: #f7931a;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    word-break: break-all;
    flex: 1;
    min-width: 200px;
}

.copy-btn {
    background: #f7931a;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.copy-btn:hover {
    background: #e8820e;
    transform: translateY(-2px);
}

.qr-code-container {
    text-align: center;
}

.qr-code {
    max-width: 200px;
    width: 100%;
    border-radius: 12px;
    background: white;
    padding: 10px;
}

.qr-caption {
    color: rgba(255, 255, 255, 0.8);
    margin-top: 15px;
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: #000;
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links a {
    color: #f7931a;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #ff6b35;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav {
        display: none;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .education-content,
    .about-content,
    .donation-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .address-container {
        flex-direction: column;
    }
    
    .btc-address {
        min-width: auto;
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .warning-cards,
    .security-tips {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.warning-card,
.tip-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Hidden class for language switching */
.hidden {
    display: none !important;
}