:root {
    --subway-green: #009639;
    --subway-yellow: #FFD700;
}

body {
    background-color: #f3f4f6;
}

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.animate-fadeIn {
    animation: fadeIn 0.4s ease-out forwards;
}

.animate-scaleIn {
    animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.tab-content {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Sidebar Buttons */
.nav-btn {
    width: 100%;
    text-align: left;
    padding: 1.15rem 1.5rem;
    border-radius: 1.25rem;
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: #9ca3af;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}

.nav-btn:hover {
    color: var(--subway-green);
    background-color: #f9fafb;
}

.nav-btn.active {
    background-color: var(--subway-green);
    color: white;
    box-shadow: 0 10px 20px -5px rgba(0, 150, 57, 0.4);
    transform: translateX(5px);
}

/* Form Inputs */
.modal-input {
    width: 100%;
    padding: 1rem 1.5rem;
    background-color: #f9fafb;
    border: 2px solid #f3f4f6;
    border-radius: 1.25rem;
    font-weight: 800;
    font-size: 0.85rem;
    outline: none;
    transition: all 0.2s;
    color: #1f2937;
}

.modal-input:focus {
    border-color: var(--subway-green);
    background-color: white;
    box-shadow: 0 0 0 4px rgba(0, 150, 57, 0.05);
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--subway-green);
    border-radius: 10px;
}

/* Card Hover */
.task-card {
    transition: all 0.3s ease;
}

.task-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px -10px rgba(0,0,0,0.1);
}