:root {
    --primary: #c0392b;
    --primary-dark: #a93226;
    --secondary: #2c3e50;
    --light: #ecf0f1;
    --dark: #1a1a2e;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--dark);
}

/* Анимация для фона */
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Стиль навигации */
.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent !important;
}

.nav-link {
    position: relative;
    margin: 0 10px;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

/* Карточки */
.card {
    border: none;
    border-radius: 20px;
    background: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.card-header {
    background: var(--gradient);
    color: white;
    padding: 1rem;
    font-weight: bold;
}

/* Герой-секция */
.hero {
    background: linear-gradient(135deg, rgba(102,126,234,0.9) 0%, rgba(118,75,162,0.9) 100%);
    border-radius: 30px;
    padding: 3rem;
    margin-bottom: 2rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '🥋';
    position: absolute;
    right: -20px;
    bottom: -20px;
    font-size: 200px;
    opacity: 0.1;
}

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

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Достижения */
.achievement-badge {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    display: inline-block;
    font-size: 0.9rem;
}

/* Форма */
.form-control {
    border-radius: 10px;
    border: 2px solid #e0e0e0;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102,126,234,0.25);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    padding: 10px 30px;
    transition: transform 0.3s ease;
}

.btn-primary:hover {
    transform: scale(1.05);
}

/* Статистика */
.stat-card {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 20px;
    margin: 1rem 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Адаптивность */
@media (max-width: 768px) {
    .hero {
        padding: 1.5rem;
    }
    
    .hero::before {
        font-size: 100px;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
}

/* Скелетон загрузки */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}