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

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
    color: white;
    min-height: 100vh;
    padding: 20px;
}

.page {
    display: none;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    text-align: center;
    animation: fadeIn 0.4s ease;
}

.page.active {
    display: block;
}

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

.logo-big {
    font-size: 96px;
    font-weight: bold;
    color: #4db8ff;
    margin-top: 40px;
    margin-bottom: 20px;
    text-shadow: 0 0 40px rgba(77, 184, 255, 0.5);
    animation: pulse 3s infinite;
}

@keyframes pulse {
    0%, 100% { text-shadow: 0 0 40px rgba(77, 184, 255, 0.5); }
    50% { text-shadow: 0 0 60px rgba(77, 184, 255, 0.8); }
}

.tagline {
    font-size: 24px;
    color: #ccc;
    margin-bottom: 60px;
}

.menu {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 450px;
    margin: 0 auto;
}

.menu-btn {
    padding: 22px;
    background: rgba(77, 184, 255, 0.15);
    color: white;
    border: 2px solid #4db8ff;
    border-radius: 20px;
    font-size: 22px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.menu-btn:hover {
    background: #4db8ff;
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(77, 184, 255, 0.4);
}

h2 {
    font-size: 48px;
    margin-bottom: 40px;
    color: #4db8ff;
}

.cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    width: 300px;
    transition: 0.3s;
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.card p {
    color: #ccc;
    margin-bottom: 15px;
}

.price {
    font-size: 32px;
    color: #4db8ff;
    margin: 20px 0;
    font-weight: bold;
}

.service-clickable {
    cursor: pointer;
}

.service-clickable:hover {
    transform: translateY(-10px) scale(1.03);
    background: rgba(77, 184, 255, 0.2);
    box-shadow: 0 15px 40px rgba(77, 184, 255, 0.4);
}

.portfolio-card img {
    width: 100%;
    border-radius: 15px;
    margin-bottom: 15px;
}

.faq {
    max-width: 700px;
    margin: 0 auto 40px;
    text-align: left;
}

.faq-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 15px;
}

.faq-item h3 {
    color: #4db8ff;
    margin-bottom: 10px;
    font-size: 20px;
}

.empty {
    color: #888;
    font-style: italic;
    font-size: 20px;
    margin-bottom: 40px;
}

.about-text {
    max-width: 700px;
    margin: 0 auto 40px;
}

.about-text p {
    margin-bottom: 15px;
    font-size: 20px;
    color: #ccc;
    line-height: 1.6;
}

.service-info {
    max-width: 600px;
    margin: 0 auto 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    text-align: left;
}

.service-price {
    font-size: 48px;
    color: #4db8ff;
    font-weight: bold;
    text-align: center;
    margin-bottom: 30px;
}

.service-info h3 {
    color: #4db8ff;
    margin-bottom: 15px;
    margin-top: 20px;
    font-size: 22px;
}

.service-info ul {
    list-style: none;
    margin-bottom: 20px;
}

.service-info ul li {
    padding: 10px 0;
    font-size: 18px;
    color: #ddd;
}

.pay-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 15px;
}

.pay-btn {
    display: block;
    padding: 15px;
    background: #4db8ff;
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 15px;
    font-size: 18px;
    text-align: center;
    cursor: pointer;
    transition: 0.3s;
    font-family: Arial, sans-serif;
}

.pay-btn:hover {
    background: #2a8fd4;
    transform: scale(1.03);
}

.payment-methods {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
}

.payment-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    width: 300px;
}

.payment-card h3 {
    color: #4db8ff;
    margin-bottom: 15px;
    font-size: 22px;
}

.payment-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #4db8ff;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    margin-top: 15px;
    transition: 0.3s;
}

.payment-btn:hover {
    background: #2a8fd4;
}

.qr-code {
    width: 200px;
    height: 200px;
    background: white;
    border-radius: 15px;
    margin-top: 15px;
    padding: 10px;
}

.promo {
    max-width: 400px;
    margin: 0 auto 40px;
}

.promo h3 {
    margin-bottom: 15px;
}

.promo input {
    padding: 15px;
    width: 100%;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 16px;
    margin-bottom: 10px;
}

.promo button {
    padding: 15px 40px;
    background: #4db8ff;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s;
}

.promo button:hover {
    background: #2a8fd4;
}

#promoResult {
    margin-top: 15px;
    font-size: 18px;
}

.donate {
    padding: 30px;
    background: rgba(147, 51, 234, 0.2);
    border-radius: 20px;
    max-width: 500px;
    margin: 0 auto 40px;
    border: 2px solid rgba(147, 51, 234, 0.4);
}

.donate h3 {
    color: #c084fc;
    margin-bottom: 15px;
}

.donate-btn {
    display: inline-block;
    padding: 15px 40px;
    background: #9333ea;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    margin-top: 15px;
    transition: 0.3s;
}

.donate-btn:hover {
    background: #7c22ce;
    transform: scale(1.05);
}

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

.social-btn {
    padding: 15px 40px;
    background: #4db8ff;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-size: 18px;
    transition: 0.3s;
}

.social-btn:hover {
    background: #2a8fd4;
    transform: scale(1.05);
}

form {
    max-width: 500px;
    margin: 0 auto 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

form input, form textarea {
    padding: 15px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-family: Arial, sans-serif;
}

form input::placeholder, form textarea::placeholder {
    color: #aaa;
}

form textarea {
    min-height: 120px;
    resize: vertical;
}

form button {
    padding: 15px;
    background: #4db8ff;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    cursor: pointer;
    transition: 0.3s;
    font-family: Arial, sans-serif;
}

form button:hover {
    background: #2a8fd4;
}

.back-btn {
    padding: 15px 40px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid #4db8ff;
    border-radius: 25px;
    font-size: 18px;
    cursor: pointer;
    transition: 0.3s;
    margin-top: 20px;
    font-family: Arial, sans-serif;
}

.back-btn:hover {
    background: #4db8ff;
    transform: scale(1.05);
}

/* ===== МОБИЛЬНОЕ МЕНЮ ===== */
.mobile-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    margin: -20px -20px 20px -20px;
}

.mobile-logo {
    font-size: 24px;
    font-weight: bold;
    color: #4db8ff;
}

.burger {
    background: none;
    border: 2px solid #4db8ff;
    color: #4db8ff;
    font-size: 24px;
    padding: 5px 15px;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.3s;
}

.burger:hover {
    background: #4db8ff;
    color: white;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background: rgba(10, 10, 30, 0.98);
    padding: 20px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.open {
    transform: translateY(0);
}

.mobile-menu button {
    padding: 18px;
    background: rgba(77, 184, 255, 0.15);
    color: white;
    border: 2px solid #4db8ff;
    border-radius: 15px;
    font-size: 18px;
    cursor: pointer;
    margin-bottom: 10px;
    transition: 0.3s;
    font-family: Arial, sans-serif;
}

.mobile-menu button:hover {
    background: #4db8ff;
}

@media (max-width: 768px) {
    .mobile-header {
        display: flex;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .menu {
        display: none;
    }
    
    .logo-big {
        font-size: 56px;
    }
    
    .tagline {
        font-size: 18px;
    }
    
    h2 {
        font-size: 32px;
    }
    
    .card {
        width: 100%;
        max-width: 350px;
    }
}