/* ========================================
   Business Like — Анимации
======================================== */

/* Плавающие элементы */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* Плавающая карточка */
@keyframes cardFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* Прыгающий элемент */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

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

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

/* Появление слева */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Появление справа */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Масштабирование */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Вращение */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

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

/* Волна */
@keyframes wave {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(-5%);
    }
}

/* ========================================
   Классы анимаций
======================================== */

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.6s ease-out forwards;
}

.animate-fadeInRight {
    animation: fadeInRight 0.6s ease-out forwards;
}

.animate-scaleIn {
    animation: scaleIn 0.5s ease-out forwards;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-bounce {
    animation: bounce 2s ease-in-out infinite;
}

/* Задержки анимаций */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }

/* ========================================
   Элементы с анимацией при скролле
======================================== */

.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Стиль для hover эффектов */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(108, 92, 231, 0.4);
}

/* ========================================
   Загрузка / Скелетон
======================================== */

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: 16px;
}

.skeleton-image {
    height: 180px;
    width: 100%;
}

/* ========================================
   Спиннер загрузки
======================================== */

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: rotate 0.8s linear infinite;
}

.spinner-small {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-large {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

/* ========================================
   Прогресс-бар анимация
======================================== */

.progress-animated .progress-fill {
    animation: progressGrow 1s ease-out forwards;
}

@keyframes progressGrow {
    from {
        width: 0;
    }
}

/* ========================================
   Уведомления
======================================== */

.notification {
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification-exit {
    animation: slideOutRight 0.3s ease-in forwards;
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ========================================
   Модальное окно
======================================== */

.modal-overlay {
    animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    animation: modalSlideIn 0.3s ease-out;
}

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

/* ========================================
   Конфетти / Успех
======================================== */

.confetti {
    position: fixed;
    top: 0;
    left: 50%;
    width: 10px;
    height: 10px;
    pointer-events: none;
    animation: confettiFall 3s ease-out forwards;
}

@keyframes confettiFall {
    0% {
        transform: translateY(-100%) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ========================================
   Типографика анимации
======================================== */

.typewriter {
    overflow: hidden;
    border-right: 3px solid var(--primary);
    white-space: nowrap;
    animation: typing 3s steps(40) forwards, blinkCursor 0.75s step-end infinite;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blinkCursor {
    50% {
        border-color: transparent;
    }
}

/* ========================================
   Кнопка с волной при клике
======================================== */

.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.3) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 1s;
}

.ripple:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

/* ========================================
   Игровые анимации
======================================== */

.correct-answer {
    animation: correctPop 0.5s ease-out;
}

@keyframes correctPop {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
        background: var(--accent-beginners);
    }
    100% {
        transform: scale(1);
    }
}

.wrong-answer {
    animation: wrongShake 0.5s ease-out;
}

@keyframes wrongShake {
    0%, 100% {
        transform: translateX(0);
    }
    20%, 60% {
        transform: translateX(-10px);
    }
    40%, 80% {
        transform: translateX(10px);
    }
}

/* Звёздочки за правильный ответ */
.star-burst {
    animation: starBurst 0.6s ease-out forwards;
}

@keyframes starBurst {
    0% {
        transform: scale(0) rotate(0deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.2) rotate(180deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(360deg);
        opacity: 1;
    }
}