:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --dark-bg: #0f172a;
    --darker-bg: #0a0f1c;
    --card-bg: rgba(30, 41, 59, 0.8);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-red: #ef4444;
    --accent-cyan: #06b6d4;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.15);
    --shadow-card: 0 10px 25px rgba(0, 0, 0, 0.25);
    --radius-xl: 20px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Сброс и базовые стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark-bg);
    background-image: 
        radial-gradient(circle at 0% 0%, rgba(108, 92, 231, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 100% 0%, rgba(244, 114, 182, 0.1) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Анимированный фон */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    opacity: 0.3;
}

.grid-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(circle at center, black 30%, transparent 70%);
}

/* Шапка сайта */
.site-header {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--card-border);
    padding: 1.5rem 0;
    margin-bottom: 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    animation: float 4s ease-in-out infinite;
}

.header-icon i {
    font-size: 1.5rem;
    color: white;
}

.site-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(to right, #ffffff, var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
}

.site-header .subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    opacity: 0.9;
}

/* Легенда рангов */
.rank-legend {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.rank-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.rank-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.teamlead-color { background: linear-gradient(135deg, #FF6B6B, #FF8E8E); }
.senior-color { background: linear-gradient(135deg, #4ECDC4, #6CE6DE); }
.mid-color { background: linear-gradient(135deg, #45B7D1, #67D9F3); }
.junior-color { background: linear-gradient(135deg, #96CEB4, #B8E8D0); }
.trainee-color { background: linear-gradient(135deg, #FFEAA7, #FFF4D4); }

/* Панель управления */
.dashboard-controls {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-card);
}

.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.stat-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(108, 92, 231, 0.1);
}

.stat-card i {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    display: block;
}

.stat-card:nth-child(1) i { color: var(--accent-cyan); }
.stat-card:nth-child(2) i { color: var(--accent-green); }
.stat-card:nth-child(3) i { color: var(--accent-yellow); }
.stat-card:nth-child(4) i { color: var(--primary-color); }

.stat-card span {
    font-size: 2rem;
    font-weight: 700;
    display: block;
    margin-bottom: 0.3rem;
    background: linear-gradient(to right, #ffffff, var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Фильтры */
.filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    flex: 1;
    min-width: 250px;
}

.filter-group label {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

#searchInput {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

#searchInput:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
    background: rgba(255, 255, 255, 0.08);
}

#searchInput::placeholder {
    color: var(--text-secondary);
}

#languageFilter {
    width: 100%;
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 16px;
    padding-right: 3rem;
}

/* Контейнер студентов с горизонтальным скроллом */
.students-wrapper {
    position: relative;
    margin-bottom: 2rem;
}

.students-container {
    display: flex;
    gap: 1.2rem;
    overflow-x: auto;
    padding: 1rem 0;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) rgba(255, 255, 255, 0.05);
}

.students-container::-webkit-scrollbar {
    height: 6px;
}

.students-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.students-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.students-container::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Кнопки навигации для скролла */
.scroll-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    z-index: 10;
    backdrop-filter: blur(10px);
}

.scroll-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-50%) scale(1.1);
}

.scroll-left {
    left: -20px;
}

.scroll-right {
    right: -20px;
}

/* Состояния загрузки и ошибок */
.loading, .error-message, .no-results {
    width: 100%;
    text-align: center;
    padding: 3rem 2rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.loading i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    animation: spin 1.5s linear infinite;
}

.error-message i {
    font-size: 2.5rem;
    color: var(--accent-red);
    margin-bottom: 1.5rem;
}

.error-message button {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: var(--transition-smooth);
}

.error-message button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(108, 92, 231, 0.3);
}

/* Карточка студента - КОМПАКТНАЯ ВЕРСИЯ */
/* Увеличенные размеры карточек студентов */
.students-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.student-card {
    min-width: 100%;
    height: 480px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-smooth);
    position: relative;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);
    opacity: 0;
    animation: cardAppear 0.5s ease-out forwards;
    animation-delay: calc(var(--card-index, 0) * 0.1s);
}

/* Увеличенные отступы и размеры внутри карточки */
.card-header {
    padding: 1.5rem;
    gap: 1.2rem;
}

.avatar-container {
    width: 75px;
    height: 75px;
}

.avatar {
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    background: linear-gradient(white, white) padding-box,
                var(--gradient-primary) border-box;
}

.student-info h2 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.github-link {
    font-size: 0.95rem;
    margin-bottom: 0.8rem;
}

.status-indicator {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

/* Проект с увеличенными отступами */
.project-info {
    padding: 0 1.5rem 1.2rem;
}

.project-info h3 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    gap: 0.8rem;
}

.project-info h3 i {
    font-size: 1rem;
}

.repo-description {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    height: 3.6em; /* 3 строки текста */
}

/* Увеличенные метрики */
.metrics-grid {
    gap: 0.8rem;
}

.metric {
    padding: 1rem;
    gap: 0.8rem;
}

.metric i {
    font-size: 1.3rem;
}

.metric-content {
    gap: 0.3rem;
}

.metric-value {
    font-size: 1.3rem;
}

.metric-label {
    font-size: 0.85rem;
}

/* Футер карточки */
.card-footer {
    padding: 1rem 1.5rem;
}

.updated-at {
    font-size: 0.85rem;
}

.repo-link {
    font-size: 0.9rem;
    padding: 0.6rem 1rem;
}

/* Бейдж ранга увеличен */
.rank-badge {
    top: 15px;
    right: 15px;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    gap: 0.5rem;
}

/* Адаптивность для увеличенных карточек */
@media (max-width: 1200px) {
    .students-container {
        grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    }
    .student-card {
        height: 460px;
    }
}

@media (max-width: 768px) {
    .students-container {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    .student-card {
        height: auto;
        min-height: 440px;
    }
    .avatar-container {
        width: 70px;
        height: 70px;
    }
}

@media (max-width: 480px) {
    .student-card {
        min-height: 420px;
    }
    .card-header {
        padding: 1.2rem;
    }
    .project-info {
        padding: 0 1.2rem 1rem;
    }
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

.status-high .avatar-status { background: var(--accent-green); }
.status-medium .avatar-status { background: var(--accent-yellow); }
.status-low .avatar-status { background: var(--accent-red); }

.student-info {
    flex: 1;
    min-width: 0; /* Для правильного обрезания текста */
}

.student-info h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background: linear-gradient(to right, #ffffff, var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.github-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    margin-bottom: 0.5rem;
    transition: var(--transition-smooth);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
    white-space: nowrap;
}

.status-high { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); border: 1px solid rgba(16, 185, 129, 0.2); }
.status-medium { background: rgba(245, 158, 11, 0.15); color: var(--accent-yellow); border: 1px solid rgba(245, 158, 11, 0.2); }
.status-low { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); border: 1px solid rgba(239, 68, 68, 0.2); }

/* Информация о проекте */
.project-info {
    padding: 0 1.2rem 1rem;
    flex: 1;
}

.project-info h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

.project-info h3 i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.repo-description {
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
    margin-bottom: 1rem;
    height: 2.8em; /* 2 строки текста */
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Метрики */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
}

.metric {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 0.7rem;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.metric:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.metric i {
    font-size: 1rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.metric-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.metric-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.metric-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
    white-space: nowrap;
}

/* Футер карточки */
.card-footer {
    padding: 0.8rem 1.2rem;
    border-top: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    margin-top: auto;
}

.updated-at {
    font-size: 0.7rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.repo-link {
    font-size: 0.75rem;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.8rem;
    background: rgba(108, 92, 231, 0.1);
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
}

.repo-link:hover {
    background: rgba(108, 92, 231, 0.2);
    transform: translateY(-1px);
}

/* Футер сайта */
.site-footer {
    margin-top: 3rem;
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--card-border);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 0 0 2px 2px;
}

.github-org {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    margin-top: 0.8rem;
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    font-size: 0.9rem;
}

.github-org:hover {
    background: rgba(108, 92, 231, 0.1);
    transform: translateY(-2px);
}

/* Анимации */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes cardAppear {
    from { 
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to { 
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Кастомный скроллбар для всего сайта */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Адаптивность */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .students-container {
        gap: 1rem;
    }
    
    .student-card {
        min-width: 260px;
        max-width: 260px;
        height: 340px;
    }
}

@media (max-width: 768px) {
    .site-header {
        padding: 1rem 0;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .header-left {
        flex-direction: column;
        gap: 1rem;
    }
    
    .header-icon {
        width: 45px;
        height: 45px;
    }
    
    .site-header h1 {
        font-size: 1.5rem;
    }
    
    .site-header .subtitle {
        font-size: 0.9rem;
    }
    
    .rank-legend {
        justify-content: center;
        gap: 0.8rem;
    }
    
    .dashboard-controls {
        padding: 1.2rem;
    }
    
    .stats-overview {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filter-group {
        min-width: 100%;
    }
    
    .scroll-btn {
        display: none; /* На мобильных скрываем кнопки скролла */
    }
    
    .student-card {
        min-width: 240px;
        max-width: 240px;
        height: 330px;
    }
    
    .card-header {
        padding: 1rem;
    }
    
    .project-info {
        padding: 0 1rem 0.8rem;
    }
    
    .card-footer {
        padding: 0.6rem 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .stats-overview {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-card span {
        font-size: 1.8rem;
    }
    
    .student-card {
        min-width: 220px;
        max-width: 220px;
        height: 320px;
    }
    
    .avatar-container {
        width: 50px;
        height: 50px;
    }
    
    .student-info h2 {
        font-size: 1rem;
    }
    
    .metrics-grid {
        gap: 0.5rem;
    }
    
    .metric {
        padding: 0.6rem;
    }
    
    .metric-value {
        font-size: 1rem;
    }
}

/* Декоративные элементы для фона */
.floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

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

@keyframes floatAround {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(100px, 100px) rotate(90deg);
    }
    50% {
        transform: translate(50px, 200px) rotate(180deg);
    }
    75% {
        transform: translate(-50px, 100px) rotate(270deg);
    }
    100% {
        transform: translate(0, 0) rotate(360deg);
    }
}

/* Индикатор скролла */
.scroll-hint {
    position: absolute;
    right: -15px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 0.6rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    opacity: 0;
    animation: fadeInOut 3s infinite;
    pointer-events: none;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0; transform: translateY(-50%) translateX(10px); }
    50% { opacity: 1; transform: translateY(-50%) translateX(0); }
}