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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #1f2937;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --background: #111827;
    --background-dark: #0f172a;
    --border: #374151;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-text: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

/* Loading Animation */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease-out;
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.logo-animation {
    font-size: 4rem;
    font-weight: 800;
    text-align: center;
}

.logo-text {
    background: linear-gradient(90deg, #333 0%, #333 50%, var(--primary-color) 50%, var(--primary-color) 100%);
    background-size: 200% 100%;
    background-position-x: 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fillGradient 2s ease-in-out forwards;
    position: relative;
}

.logo-text::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient);
    animation: expandLine 2s ease-in-out 0.5s forwards;
}

@keyframes fillGradient {
    0% {
        background-position-x: 100%;
    }
    100% {
        background-position-x: 0%;
    }
}

@keyframes expandLine {
    0% {
        width: 0;
    }
    100% {
        width: 100%;
    }
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInDown 0.8s ease-out 2.5s forwards;
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s;
}

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

.nav-actions {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn-primary {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-primary.large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-secondary.large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--background) 100%);
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 2.8s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
    }
}

/* .hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
} */

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* AI Generator Preview */
.ai-generator-preview {
    background: rgba(31, 41, 55, 0.6);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.input-section {
    margin-bottom: 2rem;
}

#prompt-input {
    width: 100%;
    height: 100px;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    resize: vertical;
    font-family: inherit;
    margin-bottom: 1rem;
    background: rgba(17, 24, 39, 0.8);
    color: var(--text-primary);
    transition: border-color 0.3s;
}

#prompt-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-generate {
    width: 100%;
    background: var(--gradient);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.btn-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.output-section {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    background: rgba(17, 24, 39, 0.4);
}

.image-placeholder {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background: var(--secondary-color);
    border-radius: 8px;
    transition: all 0.3s;
}

.image-placeholder:hover {
    border-color: var(--primary-color);
}

/* Features */
.features-preview {
    padding: 80px 0;
    background: var(--background-dark);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 3s forwards;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(31, 41, 55, 0.6);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s;
    border: 1px solid transparent;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* Footer */
.footer {
    background: var(--background-dark);
    color: var(--text-primary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: all 0.3s;
}

.footer-section a:hover {
    color: var(--text-primary);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
}

/* Features Page */
.features-hero {
    padding: 140px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--background) 100%);
}

.features-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.features-detail {
    padding: 80px 0;
    background: var(--background);
}

.feature-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.feature-item.reverse {
    direction: rtl;
}

.feature-item.reverse > * {
    direction: ltr;
}

.feature-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.demo-box {
    background: var(--gradient);
    height: 300px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Gallery Page */
.gallery-hero {
    padding: 140px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--background) 100%);
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--border);
    background: rgba(31, 41, 55, 0.6);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.gallery-item {
    background: rgba(31, 41, 55, 0.6);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid transparent;
    backdrop-filter: blur(10px);
}

.gallery-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.image-placeholder-gallery {
    height: 200px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.image-placeholder-gallery::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.gallery-item:hover .image-placeholder-gallery::before {
    left: 100%;
}

.gallery-info {
    padding: 1.5rem;
}

.prompt-text {
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.6;
}

/* Contact Page */
.contact-hero {
    padding: 140px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--background) 100%);
}

.contact-section {
    padding: 80px 0;
    background: var(--background);
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.contact-form h2,
.contact-info h2 {
    margin-bottom: 2rem;
    font-size: 2rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    background: rgba(31, 41, 55, 0.6);
    color: var(--text-primary);
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.info-item {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(31, 41, 55, 0.6);
    border-radius: 8px;
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.info-item h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.info-item p {
    color: var(--text-secondary);
}



/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .feature-item {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .logo-animation {
        font-size: 2.5rem;
    }
}

/* Flash сообщения */
.flash-messages {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
}

.flash-message {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideInRight 0.3s ease-out;
}

.flash-success {
    border-left: 4px solid #10b981;
}

.flash-error {
    border-left: 4px solid #ef4444;
}

.flash-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    margin-left: 1rem;
}

.flash-close:hover {
    color: var(--text-primary);
}

/* Приветствие пользователя */
.user-greeting {
    color: var(--text-primary);
    margin-right: 1rem;
    font-weight: 500;
}
/* Стили для блоков кода */
.code-block {
    background: rgba(17, 24, 39, 0.9);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin: 1rem 0;
    overflow: hidden;
}

.code-language {
    background: rgba(31, 41, 55, 0.8);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: 'Monaco', 'Consolas', monospace;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
}

.code-block pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
    background: rgba(17, 24, 39, 0.6);
}

.code-block code {
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    color: #e5e7eb;
    white-space: pre;
    display: block;
}

.inline-code {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.875em;
    border: 1px solid rgba(102, 126, 234, 0.2);
}
/* Стили для блоков кода */
.code-block {
    background: rgba(17, 24, 39, 0.9);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin: 1rem 0;
    overflow: hidden;
}

.code-language {
    background: rgba(31, 41, 55, 0.8);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: 'Monaco', 'Consolas', monospace;
    border-bottom: 1px solid var(--border);
}

.code-block pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
}

.code-block code {
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    color: #e5e7eb;
    white-space: pre;
}

.inline-code {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.875em;
}
/* Стили для блоков кода */
.code-block {
    background: rgba(17, 24, 39, 0.95);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin: 1.5rem 0;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.code-language {
    background: rgba(31, 41, 55, 0.9);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: 'Monaco', 'Consolas', monospace;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

.code-block pre {
    margin: 0;
    padding: 1.5rem;
    overflow-x: auto;
    background: rgba(17, 24, 39, 0.8);
}

.code-block code {
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
    color: #e5e7eb;
    white-space: pre;
    display: block;
}

/* Подсветка синтаксиса для C# */
.code-block code .keyword { color: #569cd6; font-weight: bold; }
.code-block code .string { color: #ce9178; }
.code-block code .comment { color: #6a9955; font-style: italic; }
.code-block code .number { color: #b5cea8; }
.code-block code .type { color: #4ec9b0; }
.code-block code .method { color: #dcdcaa; }

.inline-code {
    background: rgba(102, 126, 234, 0.15);
    color: var(--primary-color);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.875em;
    border: 1px solid rgba(102, 126, 234, 0.3);
}

/* Стили для текста */
.message-text {
    line-height: 1.7;
}

.message-text ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.message-text li {
    margin: 0.25rem 0;
    color: var(--text-secondary);
}

.message-text strong {
    color: var(--text-primary);
    font-weight: 700;
}

.message-text em {
    color: var(--text-secondary);
    font-style: italic;
}

/* Полоса прокрутки для блоков кода */
.code-block pre::-webkit-scrollbar {
    height: 8px;
}

.code-block pre::-webkit-scrollbar-track {
    background: rgba(31, 41, 55, 0.4);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}
.code-block {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    margin: 1rem 0;
    overflow: hidden;
}

.code-language {
    background: #e9ecef;
    padding: 0.5rem 1rem;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: #495057;
    border-bottom: 1px solid #dee2e6;
}

.code-block pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
}

.code-block code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
    white-space: pre;
    display: block;
}

.inline-code {
    background: #f8f9fa;
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    border: 1px solid #e9ecef;
}

.math-block {
    text-align: center;
    margin: 1rem 0;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 6px;
}

.math-inline {
    font-style: italic;
}