body {
    font-family: 'Inter', sans-serif;
    background: #f3f4f6;
    min-height: 100vh;
    margin: 0;
}
.sidebar {
    transition: transform 0.3s ease;
}
.sidebar-hidden {
    transform: translateX(-100%);
}
.card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}
.modal {
    transition: opacity 0.3s ease;
}
.modal.show {
    opacity: 1;
}
.neumorphic {
    background: #e5e7eb;
    box-shadow: 4px 4px 8px rgba(0, 0, 0, 0.1), -4px -4px 8px rgba(255, 255, 255, 0.8);
}
.nav-tab {
    transition: background-color 0.2s ease;
}
.nav-tab.active {
    background-color: #e5e7eb;
    font-weight: 600;
}
.signature-img {
    max-width: 100px;
    max-height: 50px;
    object-fit: contain;
}
.draggable {
    cursor: move;
}
.drag-over {
    border: 2px dashed #4b5563;
}
.dimension-row {
    display: flex;
    gap: 10px;
    margin-bottom: 5px;
}
/* Advanced Modal Styles */
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}
.tab.active {
    background-color: #0d9488 !important;
    color: white !important;
}
.input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    font-size: 0.875rem;
}
.input:focus {
    outline: none;
    ring: 1px;
    ring-color: #14b8a6;
    border-color: #14b8a6;
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        z-index: 50;
    }
    .main-content {
        margin-left: 0 !important;
    }
}