.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.4s ease;
    pointer-events: none;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px var(--primary-shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-shadow);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

.btn-success:active {
    transform: scale(0.98);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    box-shadow: 0 2px 6px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
}

.btn-danger:active {
    transform: scale(0.98);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #1f2937;
    box-shadow: 0 2px 6px rgba(245, 158, 11, 0.25);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
}

.btn-warning:active {
    transform: scale(0.98);
}

.btn-cancelar {
    background: transparent;
    color: var(--text-secondary, #4b5245);
    border: 1px solid var(--border-color, #e5e8e0);
    box-shadow: none;
}

.btn-cancelar::before {
    background: linear-gradient(90deg, transparent, rgba(239, 68, 68, 0.1), transparent);
}

.btn-cancelar:hover {
    background: rgba(239, 68, 68, 0.06);
    border-color: #ef4444;
    color: #ef4444;
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.15);
}

.btn-cancelar:active {
    transform: scale(0.98);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary, #1f2a1a);
    border: 1px solid var(--border-color, #e5e8e0);
    box-shadow: none;
}

.btn-outline::before {
    background: linear-gradient(90deg, transparent, rgba(161, 170, 139, 0.15), transparent);
}

.btn-outline:hover {
    background: var(--primary-bg);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(161, 170, 139, 0.15);
}

.btn-outline:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--bg-tertiary, #f3f5f0);
    color: var(--text-primary, #1f2a1a);
    border: 1px solid var(--border-color, #e5e8e0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.btn-secondary::before {
    background: linear-gradient(90deg, transparent, rgba(161, 170, 139, 0.15), transparent);
}

.btn-secondary:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(161, 170, 139, 0.1);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.btn-refresh {
    background: transparent;
    border: 1px solid var(--border-color, #e5e8e0);
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-secondary, #4b5245);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease;
}

.btn-refresh::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(161, 170, 139, 0.15), transparent);
    transition: left 0.4s ease;
    pointer-events: none;
}

.btn-refresh:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-refresh:hover::before {
    left: 100%;
}

.btn-refresh:active {
    transform: scale(0.98);
}

.btn-refresh i {
    font-size: 0.9rem;
}

.btn-ver-todas {
    background: transparent;
    border: 1px solid var(--border-color, #e5e8e0);
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-secondary, #4b5245);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease;
}

.btn-ver-todas::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(161, 170, 139, 0.15), transparent);
    transition: left 0.4s ease;
    pointer-events: none;
}

.btn-ver-todas:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-ver-todas:hover::before {
    left: 100%;
}

.btn-ver-todas:active {
    transform: scale(0.98);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.75rem;
    border-radius: 10px;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 1rem;
    border-radius: 14px;
}

.btn-icon {
    padding: 10px;
    border-radius: 10px;
}

.btn-icon.btn-sm {
    padding: 6px;
}

.btn-icon.btn-lg {
    padding: 14px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn:disabled::before {
    display: none;
}

.btn:disabled:active {
    transform: none !important;
}

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-group-vertical {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: btnSpin 0.6s linear infinite;
}

.btn-loading.btn-cancelar::after {
    border: 2px solid rgba(161, 170, 139, 0.3);
    border-top-color: var(--primary);
}

.btn-loading.btn-outline::after {
    border: 2px solid rgba(161, 170, 139, 0.3);
    border-top-color: var(--primary);
}

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

.btn-block {
    width: 100%;
    justify-content: center;
}

@media (max-width: 480px) {
    .btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    .btn-sm {
        padding: 5px 10px;
        font-size: 0.7rem;
    }

    .btn-lg {
        padding: 10px 24px;
        font-size: 0.9rem;
    }

    .btn-refresh,
    .btn-ver-todas {
        width: 100%;
        justify-content: center;
    }
}

@media (prefers-reduced-motion: reduce) {

    .btn,
    .btn-refresh,
    .btn-ver-todas {
        transition: none !important;
    }

    .btn::before,
    .btn-refresh::before,
    .btn-ver-todas::before {
        transition: none !important;
    }

    .btn:hover::before,
    .btn-refresh:hover::before,
    .btn-ver-todas:hover::before {
        left: -100%;
    }

    .btn:hover:not(:disabled) {
        transform: none !important;
    }

    .btn-loading::after {
        animation: none !important;
    }
}