/* Buttons CSS - Estilos para todos os botões */

/* Base button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(56, 173, 17, 0.2);
}

/* Button sizes */
.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* Primary button (Verde) */
.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: var(--primary-green);
}

.btn-primary:hover {
    background: var(--primary-green-dark);
    border-color: var(--primary-green-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(56, 173, 17, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(56, 173, 17, 0.3);
}

/* Secondary button (Outline) */
.btn-secondary {
    background: transparent;
    color: var(--primary-green);
    border-color: var(--primary-green);
}

.btn-secondary:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(56, 173, 17, 0.2);
}

.btn-secondary:active {
    transform: translateY(0);
}

/* Accent button (Amarelo) */
.btn-accent {
    background: var(--gradient-accent);
    color: var(--text-dark);
    border-color: var(--accent-yellow);
}

.btn-accent:hover {
    background: var(--accent-yellow-dark);
    border-color: var(--accent-yellow-dark);
    color: var(--text-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 204, 42, 0.3);
}

.btn-accent:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(255, 204, 42, 0.3);
}

/* Support button (Azul) */
.btn-support {
    background: var(--gradient-support);
    color: var(--white);
    border-color: var(--support-blue);
}

.btn-support:hover {
    background: var(--support-blue-dark);
    border-color: var(--support-blue-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 118, 194, 0.3);
}

.btn-support:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(46, 118, 194, 0.3);
}

/* Outline buttons */
.btn-outline {
    background: transparent;
    color: var(--text-dark);
    border-color: var(--medium-gray);
}

.btn-outline:hover {
    background: var(--light-gray);
    border-color: var(--primary-green);
    color: var(--primary-green);
    transform: translateY(-1px);
}

.btn-outline:active {
    transform: translateY(0);
}

/* Ghost buttons */
.btn-ghost {
    background: transparent;
    color: var(--text-light);
    border: none;
    padding: 0.5rem 1rem;
}

.btn-ghost:hover {
    background: var(--light-gray);
    color: var(--primary-green);
}

/* Disabled state */
.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn:disabled:hover,
.btn.disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Button with icons */
.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-icon .icon {
    width: 20px;
    height: 20px;
}

.btn-icon-only {
    padding: 0.75rem;
    width: auto;
    aspect-ratio: 1;
}

/* Loading state */
.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Button groups */
.btn-group {
    display: inline-flex;
    gap: 0;
}

.btn-group .btn {
    border-radius: 0;
    border-right-width: 1px;
}

.btn-group .btn:first-child {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.btn-group .btn:last-child {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
    border-right-width: 2px;
}

.btn-group .btn:not(:last-child) {
    border-right-color: rgba(255, 255, 255, 0.3);
}

/* Floating action button */
.btn-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    padding: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
}

.btn-fab:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
    
    .btn-small {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }
    
    .btn-fab {
        bottom: 1rem;
        right: 1rem;
        width: 48px;
        height: 48px;
    }
}

/* Animation effects */
.btn-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(56, 173, 17, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(56, 173, 17, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(56, 173, 17, 0);
    }
}

/* Special button styles */
.btn-gradient-border {
    position: relative;
    background: var(--white);
    color: var(--primary-green);
}

.btn-gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
}