/* Основные переменные для тем */
:root {
    --primary-color: #6366f1;
    --primary-hover: #5855eb;
    --secondary-color: #f1f5f9;
    --accent-color: #06b6d4;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --border-color: #e2e8f0;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 10px 25px rgba(0, 0, 0, 0.15);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

[data-theme="dark"] {
    --primary-color: #818cf8;
    --primary-hover: #6366f1;
    --secondary-color: #374151;
    --accent-color: #22d3ee;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --border-color: #334155;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-heavy: 0 10px 25px rgba(0, 0, 0, 0.4);
    --gradient-primary: linear-gradient(135deg, #4c1d95 0%, #1e1b4b 100%);
    --gradient-secondary: linear-gradient(135deg, #7c3aed 0%, #3730a3 100%);
}

/* Защита от копирования */
* {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

textarea, input {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: all 0.3s ease;
    overflow-x: hidden;
}

/* Фоновые анимации */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.floating-shapes {
    position: relative;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.1;
    animation: float 20s infinite linear;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: -5s;
    background: var(--gradient-secondary);
}

.shape-3 {
    width: 60px;
    height: 60px;
    top: 80%;
    left: 20%;
    animation-delay: -10s;
}

.shape-4 {
    width: 100px;
    height: 100px;
    top: 30%;
    right: 30%;
    animation-delay: -15s;
    background: var(--gradient-secondary);
}

.shape-5 {
    width: 140px;
    height: 140px;
    top: 10%;
    right: 5%;
    animation-delay: -7s;
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-30px) rotate(120deg);
    }
    66% {
        transform: translateY(30px) rotate(240deg);
    }
    100% {
        transform: translateY(0px) rotate(360deg);
    }
}

/* Навигация */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(15, 23, 42, 0.95);
}

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

.nav-logo h1 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

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

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

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

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

/* Переключатель темы */
.theme-toggle {
    position: relative;
}

.theme-switch {
    display: none;
}

.theme-label {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 25px;
    padding: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    width: 60px;
    height: 30px;
}

.theme-icon {
    font-size: 14px;
    transition: opacity 0.3s ease;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.theme-icon.sun {
    left: 8px;
    opacity: 1;
}

.theme-icon.moon {
    right: 8px;
    opacity: 0;
}

.theme-slider {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background: var(--primary-color);
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.theme-switch:checked + .theme-label .theme-slider {
    transform: translateX(28px);
}

.theme-switch:checked + .theme-label .sun {
    opacity: 0;
}

.theme-switch:checked + .theme-label .moon {
    opacity: 1;
}

/* Основной контент */
.main-content {
    margin-top: 70px;
    min-height: calc(100vh - 70px);
}

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

/* Героическая секция */
.hero-section {
    padding: 80px 0;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
    animation: fadeInUp 1s ease 0.2s both;
}

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

/* Контейнер транслитерации */
.transliteration-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.4s both;
}

.input-section, .output-section {
    background: var(--bg-secondary);
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
}

.input-section:hover, .output-section:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.input-header, .output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.input-header h3, .output-header h3 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.controls {
    display: flex;
    gap: 10px;
}

textarea {
    width: 100%;
    height: 200px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 15px;
    font-size: 16px;
    font-family: inherit;
    background: var(--bg-primary);
    color: var(--text-primary);
    resize: vertical;
    transition: all 0.3s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.char-counter {
    text-align: right;
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Кнопки */
.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

/* Панель опций */
.options-panel {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    animation: fadeInUp 1s ease 0.6s both;
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.option-group label {
    font-weight: 500;
    color: var(--text-primary);
}

select {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* О сервисе */
.about-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.about-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-primary);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s ease;
}

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

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

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

/* Футер */
.footer {
    background: var(--bg-secondary);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

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

/* Адаптивность */
@media (max-width: 768px) {
    .nav-menu {
        gap: 15px;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .transliteration-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .options-panel {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .input-section, .output-section {
        padding: 20px;
    }
    
    textarea {
        height: 150px;
    }
}

/* Защита от инспектора */
#protection-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 24px;
}