/* Дополнительные стили для веб-приложения */

.fade-in {
    animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.slide-up {
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from { 
        transform: translateY(40px); 
        opacity: 0; 
    }
    to { 
        transform: translateY(0); 
        opacity: 1; 
    }
}

.pulse {
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 1;
    }
    50% { 
        transform: scale(1.05);
        opacity: 0.8;
    }
}

.bounce-in {
    animation: bounceIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes bounceIn {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.shimmer {
    position: relative;
    overflow: hidden;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

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

/* Улучшенные стили для карточек курсов */
.course-card {
    position: relative;
    overflow: hidden;
}

.course-card::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;
}

.course-card:hover::before {
    left: 100%;
}

/* Стили для прогресс-бара */
.progress-ring {
    width: 60px;
    height: 60px;
}

.progress-ring-circle {
    stroke: var(--tg-theme-button-color);
    stroke-linecap: round;
    stroke-dasharray: 188.5;
    stroke-dashoffset: 188.5;
    transition: stroke-dashoffset 0.3s ease;
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
}

/* Стили для уведомлений */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--tg-theme-button-color);
    color: var(--tg-theme-button-text-color);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.notification.show {
    transform: translateX(0);
}

/* Стили для модальных окон */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--tg-theme-bg-color);
    border-radius: 12px;
    padding: 24px;
    max-width: 90%;
    max-height: 80%;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s;
}

.modal.show .modal-content {
    transform: scale(1);
}

/* Адаптивные стили */
@media (max-width: 480px) {
    .notification {
        right: 10px;
        left: 10px;
        transform: translateY(-100%);
    }
    
    .notification.show {
        transform: translateY(0);
    }
}

/* Статистические карточки */
.stat-card {
    position: relative;
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--tg-theme-secondary-bg-color), rgba(255, 255, 255, 0.8));
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--tg-theme-button-color);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--tg-theme-hint-color);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
}

.stat-icon {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: var(--font-size-lg);
    opacity: 0.6;
}

/* Улучшенные карточки достижений */
.achievement-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    margin: var(--spacing-sm) 0;
    border-radius: var(--border-radius-md);
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-base);
}

.achievement-item:hover {
    transform: translateX(4px);
    background: rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-md);
}

.achievement-icon {
    font-size: var(--font-size-3xl);
    margin-right: var(--spacing-lg);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.achievement-content {
    flex: 1;
}

.achievement-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.achievement-description {
    font-size: var(--font-size-sm);
    color: var(--tg-theme-hint-color);
}

.achievement-status {
    font-size: var(--font-size-xl);
    color: #10b981;
}

/* Стили для темной темы */
@media (prefers-color-scheme: dark) {
    .course-card::before {
        background: linear-gradient(
            90deg,
            transparent,
            rgba(255, 255, 255, 0.1),
            transparent
        );
    }
    
    .stat-card {
        background: linear-gradient(135deg, rgba(0, 0, 0, 0.3), rgba(255, 255, 255, 0.1));
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .achievement-item {
        background: rgba(0, 0, 0, 0.3);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .achievement-item:hover {
        background: rgba(0, 0, 0, 0.5);
    }
}