.animate-title {
    animation: float 3s ease-in-out infinite;
}

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

.tool-card {
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px) rotateX(5deg);
}

.theme-switch-wrapper {
    position: fixed;
    top: 20px;
    right: 20px;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: #2196F3;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.animate-bounce-slow {
    animation: bounce 2s infinite;
}

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

.tool-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 0 20px rgba(0,0,0,0.2);
    z-index: 1000;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
}

.dark .tool-modal {
    background: #1f2937;
    color: white;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
}

.modal-overlay.active {
    opacity: 1;
}

.loading {
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@media (max-width: 640px) {
    .tool-card {
        transform: none !important;
    }
    
    .theme-switch-wrapper {
        top: 10px;
        right: 10px;
    }
}

.result-fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.tool-content input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.grade-input {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Ad Container Styles */
.ad-container-top,
.ad-container-bottom,
.ad-container-feed {
    min-height: 90px;
    background: rgba(0,0,0,0.03);
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin: 1rem auto;
    border-radius: 0.5rem;
    overflow: hidden;
}

.ad-container-sidebar {
    min-height: 600px;
    background: rgba(0,0,0,0.03);
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    border-radius: 0.5rem;
    overflow: hidden;
    position: sticky;
    top: 1rem;
}

/* Dark mode styles for ad containers */
.dark .ad-container-top,
.dark .ad-container-bottom,
.dark .ad-container-feed,
.dark .ad-container-sidebar {
    background: rgba(255,255,255,0.05);
}

@media (max-width: 1024px) {
    .ad-container-sidebar {
        min-height: 280px;
        position: static;
    }
}

/* Ad Labels */
.ad-container-top::before,
.ad-container-bottom::before,
.ad-container-feed::before,
.ad-container-sidebar::before {
    content: 'Advertisement';
    position: absolute;
    top: 0;
    left: 0;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background: rgba(0,0,0,0.05);
    border-bottom-right-radius: 0.25rem;
    color: rgba(0,0,0,0.5);
}

.dark .ad-container-top::before,
.dark .ad-container-bottom::before,
.dark .ad-container-feed::before,
.dark .ad-container-sidebar::before {
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
}