:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-hover: rgba(30, 41, 59, 0.6);
    --header-height: 80px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 10s infinite ease-in-out;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: #4f46e5;
    animation-delay: 0s;
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: #7c3aed;
    animation-delay: 2s;
}

.blob-3 {
    top: 40%;
    left: 40%;
    width: 400px;
    height: 400px;
    background: #2563eb;
    animation-delay: 4s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(30px, -30px);
    }
}

/* Header */
header {
    height: var(--header-height);
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.6);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 1001;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-link:hover {
    color: #818cf8;
    background: rgba(129, 140, 248, 0.1);
}

.nav-link.active {
    color: #818cf8;
    background: rgba(129, 140, 248, 0.15);
}

.nav-link i {
    font-size: 1.1rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: rgba(129, 140, 248, 0.1);
    border-radius: 8px;
}

.admin-badge {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.telegram-login-widget {
    display: flex;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.3s ease;
    z-index: 1001;
}

.mobile-menu-toggle:hover {
    color: #818cf8;
}

/* Main Content */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 4rem 1rem;
}

.hero-container {
    max-width: 800px;
    padding: 3rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    backdrop-filter: blur(12px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: fadeInUp 0.8s ease-out;
}

h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.highlight {
    color: #818cf8;
}

.description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(79, 70, 229, 0.4);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn i {
    font-size: 1.4rem;
}

.btn-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-secondary {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    box-shadow: 0 10px 15px -3px rgba(16, 185, 129, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(16, 185, 129, 0.4);
}

.btn-secondary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-secondary:hover::after {
    opacity: 1;
}

.btn-download {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    box-shadow: 0 10px 15px -3px rgba(245, 158, 11, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(245, 158, 11, 0.4);
}

.btn-download::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-download:hover::after {
    opacity: 1;
}

/* Footer */
footer {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* Mobile Styles */
@media (max-width: 768px) {
    header {
        padding: 0 1.5rem;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        right: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        border-top: 1px solid var(--glass-border);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        width: 100%;
        justify-content: center;
        padding: 1rem;
        font-size: 1.1rem;
        background: rgba(255, 255, 255, 0.05);
    }

    .user-info {
        width: 100%;
        justify-content: center;
        padding: 1rem;
        font-size: 1.1rem;
        background: rgba(129, 140, 248, 0.1);
    }

    .telegram-login-widget {
        width: 100%;
        justify-content: center;
        margin-top: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .hero-container {
        padding: 2rem 1.5rem;
    }

    .description {
        font-size: 1rem;
    }

    .btn-group {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
        font-size: 1rem;
        padding: 0.875rem 1.5rem;
    }
}