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

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

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

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

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

@keyframes slideInRight {
    from { 
        opacity: 0;
        transform: translateX(-30px);
    }
    to { 
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

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

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

.animate-fadeIn { animation: fadeIn 0.3s ease forwards; }
.animate-slideInUp { animation: slideInUp 0.3s ease forwards; }
.animate-slideInDown { animation: slideInDown 0.3s ease forwards; }
.animate-slideInLeft { animation: slideInLeft 0.3s ease forwards; }
.animate-slideInRight { animation: slideInRight 0.3s ease forwards; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-bounce { animation: bounce 1s ease infinite; }
.animate-shake { animation: shake 0.5s ease; }
.animate-scaleIn { animation: scaleIn 0.3s ease forwards; }
.animate-rotate { animation: rotate 1s linear infinite; }

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 12px 20px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow);
    z-index: 2000;
    animation: slideInDown 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    max-width: 400px;
    min-width: 280px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.toast-success { 
    border-color: var(--accent-green);
    background: linear-gradient(135deg, rgba(48, 209, 88, 0.1), var(--bg-secondary));
}
.toast-error { 
    border-color: var(--accent-red);
    background: linear-gradient(135deg, rgba(255, 69, 58, 0.1), var(--bg-secondary));
}
.toast-warning { 
    border-color: var(--accent-orange);
    background: linear-gradient(135deg, rgba(255, 159, 10, 0.1), var(--bg-secondary));
}
.toast-info { 
    border-color: var(--accent-blue);
    background: linear-gradient(135deg, rgba(10, 132, 255, 0.1), var(--bg-secondary));
}

.toast-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 700;
    flex-shrink: 0;
    animation: checkmarkPop 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes checkmarkPop {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.toast-success .toast-icon {
    background: var(--accent-green);
    color: white;
}

.toast-error .toast-icon {
    background: var(--accent-red);
    color: white;
}

.toast-warning .toast-icon {
    background: var(--accent-orange);
    color: white;
}

.toast-info .toast-icon {
    background: var(--accent-blue);
    color: white;
}

.toast-message {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    flex: 1;
    text-align: right;
}

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

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

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

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: 12px;
}

.skeleton-button {
    height: 48px;
    width: 100%;
}

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

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.ripple:active::after {
    width: 200%;
    height: 200%;
}